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  • 201.
    Jeppsson, Tobias
    et al.
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Library, Publication Infrastructure.
    Sjögårde, Peter
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Library, Publication Infrastructure.
    Clustering of scientific publications at the KTH Library2017Report (Other academic)
  • 202.
    Kanov, Maria
    KTH, School of Computer Science and Communication (CSC). Furhat Robotics AB.
    "Sorry, what was your name again?": How to Use a Social Robot to Simulate Alzheimer’s Disease and Exploring the Effects on its Interlocutors2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Machines are designed to be infallible, but what happens if they are suddenly struck by chronic mental decline such as dementia? In this research, a social robot has been transformed into a mild-stage Alzheimer’s patient. The ultimate goal is to use it as a training tool for caregivers and medical students, as well as to raise general awareness for the disease. In particular, the study aimed to identify how to simulate Alzheimer’s with a social robot and what the effects are on its conversation partners. Thanks to its properties, the back-projected robotic head Furhat was the ideal candidate to adopt the role of Max. The sources of inspiration derived from interviews and observations. A Wizard of Oz setup enabled a conversation between the character and the user, who was given the task of asking about the robot’s life. To allow for in-between subject comparisons, the set of 20 participants was a mixture of medical and non- medical students, as well as people who knew someone with dementia closely and those who never met any. The experience was evaluated through pre- and post-interviews along with user observations. The results indicate that the patient simulation was convincing, leading the users to treat the machine as a human being and develop an emotional bond to it. They remained patient in spite of the robot’s symptoms, which affirms its potential for educational use. After all, this project aims to inspire researchers to find solutions in unconventional ways. 

  • 203.
    Karjalainen, Karolina
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Kommunicera Open Access med forskare: Erfarenheter från KTHB 20152016Conference paper (Other (popular science, discussion, etc.))
    Abstract [sv]

    I januari 2015 fick enheten för Publiceringens infrastruktur vid Kungliga Tekniska högskolans bibliotek (KTHB) i uppdrag av KTH:s ledningsgrupp att genomföra en informationskampanj om Open Access (OA) med målet att öka KTH:s andel OA-publikationer, i synnerhet gröna/parallellpublicerade OA-publikationer. Under kampanjen besökte KTHB:s OA-ansvariga skolor och institutioner på KTH för att informera om OA och vilka verktyg som finns för att underlätta publicering, samt för att ta emot forskarnas synpunkter på OA-publicering. Sammanlagt blev det 23 besök med flera intressanta diskussioner om OA. De flesta forskarna var positiva till OA, men flera saknade kännedom om vilka praktiska möjligheter som finns för att genomföra det.

    Uppsökande verksamhet i form av en informationskampanj är ett sätt att öka forskarnas medvetenhet om OA-publicering och det stöd biblioteket kan ge. Vid vårt bord berättar vi mer om våra erfarenheter från informationskampanjen samt diskuterar:

    - Hur forskningsbiblioteken kan ta tillvara forskares synpunkter på och erfarenheter av OA-publicering.

    - Hur forskningsbiblioteken kan använda dessa lärdomar för att utveckla sitt forskarstöd.

  • 204.
    Karjalainen, Karolina
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Open Access – bra i teorin, svårare i praktiken: Reflektioner från möten med forskare på KTH 20152016Other (Other (popular science, discussion, etc.))
  • 205.
    Karjalainen, Karolina
    et al.
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Scheutz, David
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Samverkan mellan forskare och bibliotek: Mot en förändrad syn på publiceringsstrategier2014In: SVeP Studenttidskriften Vetenskaplig Publicering, Vol. 1, no 1Article in journal (Other academic)
    Abstract [sv]

    Universitets- och högskolebiblioteken har i allt större utsträckning fått en viktig roll att spela i spridandet av det egna lärosätets forskning. Detta ger utrymme för samarbete mellan bibliotek och forskare: biblioteket behöver kunskap om de faktorer som styr hur forskarna väljer att sprida sina resultat, för att i sin tur kunna ge forskarna stöd i valet av publiceringskanaler och publiceringsstrategier. I detta paper undersöker vi attityder och strategier hos fyra forskare med anknytning till Kungliga Tekniska högskolans bibliotek, samt föreslår möjliga vägar till samverkan mellan bibliotek och forskare.

  • 206.
    Karlgren, Jussi
    KTH, School of Computer Science and Communication (CSC), Theoretical Computer Science, TCS.
    Geoblockering lätt att kringgå2015In: Medieormen - Journalistisk utveckling och mediedebattArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Onsdag 6 maj förväntas EU-kommissionen presentera en handlingsplan för den digitala marknaden och en fråga som seglat upp för debatt är den om geoblockering, något som kommissionens vice ordförande Andrus Ansip tydligt har tagit ställning emot.   Jussi Karlgren, professor i språkteknologi vid KTH, reder ut vad debatten handlar om.

  • 207.
    Karlgren, Klas
    et al.
    Karolinska Institutet, Sweden.
    Ramberg, Robert
    Stockholms Universitet, Sweden.
    Artman, Henrik
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Designing Interaction: How interaction design students address interaction2016In: International journal of technology and design education, ISSN 0957-7572, E-ISSN 1573-1804, Vol. 26, no 3, p. 439-459Article in journal (Refereed)
    Abstract [en]

    Interaction design is usually described as being concerned with interactions with and through artifacts but independent of a specific implementation. Design work has been characterized as a conversation between the designer and the situation and this conversation poses a particular challenge for interaction design as interactions can be elusive and difficult to describe. Moreover, current trends in interaction design introduce physical materials to a higher degree resulting in even more complex design situations. There is a lack of knowledge about how interaction designers, and especially students, address the very phenomenon of interaction. This study contributes by describing how interaction design students attempt to address aspects of interaction and by presenting an in-depth analysis in the context of an interactionary-type design exercise.

    The quantitative and qualitative findings showed that (1) the design students brought up aspects of interactivity and dynamics through talk and gestures but (2) a comprehensive design idea about interaction did not guide the design work and they were to a little degree engaged in planning sequences of interactions or interaction on a longer time scale; (3) using physical materials disrupted interaction design, and, (4) there was a lack of continuity throughout a design session when addressing interaction compared to how proposals about artifacts were pursued.

    As interaction is the core of interaction design, the findings are discussed in terms of how the immaterial design materials may “talk back” to designers. Practical strategies for how the observed phenomena could be constructively addressed within interaction design education are suggested.

  • 208.
    Karltun, Anette
    et al.
    KTH, School of Technology and Health (STH), Health Systems Engineering, Ergonomics.
    Karltun, Johan
    KTH, School of Technology and Health (STH), Health Systems Engineering, Ergonomics.
    Berglund, Martina
    Eklund, Jörgen
    KTH, School of Technology and Health (STH), Health Systems Engineering, Ergonomics.
    HTO - A complementary ergonomics approach2017In: APPLIED ERGONOMICS, ISSN 0003-6870, Vol. 59, p. 182-190Article in journal (Refereed)
    Abstract [en]

    The field of human factors and ergonomics constitutes a strong potential in systems analysis, design and improvement. However, it is difficult to communicate its potential value. This paper addresses how the human-technology-organization (HTO) concept can be defined and supports the understanding, communication and development of the systems' character and potential of human factors and ergonomics. Empirical examples from the authors' experiences of working with the HTO concept in R&D and teaching are illustrated, including its usefulness as: 1) a conceptual model; 2) an analysis framework; 3) a meta methodology; 4) a pedagogical tool; and 5) a design tool. The use of HTO provides guidance on how the system can be designed to better support health, individual and systems performance. It is further suggested that there is a strong potential for developing the theory, applications and methodological aspects of HTO.

  • 209.
    Katzeff, Cecilia
    et al.
    KTH, Centres. School of Computer Science and Communication (CSC), Centres, KTH, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC. KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Strategic Sustainability Studies.
    Ware, Vanessa
    Video storytelling in a transient, volunteer organization2007In: Business Communication Quarterly, ISSN 1080-5699, E-ISSN 1552-4191, Vol. 70, no 3, p. 381-385Article in journal (Refereed)
    Abstract [en]

    TO MAKE SENSE of and learn about their work environments, people actively construct their own knowledge and share stories of their experience. Using the metaphor of the landscape, Bruner(1990) likened books’ stories to “mountain tops jutting out of the sea. Self-contained islands though they may seem, they are upthrusts of an underlying geography that is at once local and, [yet] part of a universal pattern”. This is also true for stories. But telling stories is particularly challenging in a transient organization where people are hired on a voluntary, temporary basis. Such is the case of a nonprofit music festival organization in Sweden, which is rebuilt every year starting with recruiting the top management. 

  • 210.
    Katzeff, Cecilia
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Sustainable development, Environmental science and Engineering, Strategic Sustainability Studies. KTH, School of Computer Science and Communication (CSC), Centres, School of Architecture and the Built Environment (ABE), Centres, Centre for Sustainable Communications, CESC.
    Wessman, Stina
    RISE Interactive.
    Colombo, Sara
    MIT comparative media studies.
    “Mama, It’s Peacetime!”: Planning, Shifting and Designing Activities in the Smart Grid Scenario2017In: Proceedings of the Conference on Design and Semantics ofForm and Movement: Sense and Sensitivity, DeSForM 2017, INTECH, 2017, p. 134-147Chapter in book (Refereed)
    Abstract [en]

    In this paper, we describe a research-through-design (RtD) approach to investigate the potential of households’ electricity load balancing in the smart grid. Through the design probe “Peacetime”, householders explore peak hours as opportunities for serene and non-electricity consuming activities. During two weeks Peacetime was deployed in the homes of three households to explore an alternative framing of non-use of electricity to the commonly used framework for prompting people with feedback on their consumption. Households’ active load balancing included planning of, replacing, reorganizing and skipping everyday domestic activities. Results indicate that focus could be shifted from restricting electricity use to creating alternatives – leading to a positive framing of load balancing. The scenarios reflected in this paper differ from those of rational energy managers basing decisions of domestic life on complex facts and figures. Scenarios from the study portray how planning, reorganization, and time shifting of activities may be obtained with soft means emphasizing values of wellbeing and respect of the variation of households’ social contexts.

  • 211.
    Kazemian, Reza
    et al.
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Urban and Regional Studies.
    Haas, Tigran
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Urban and Regional Studies.
    Deployment of Information and Telecommunication Technology as a Sustainable Design Medium of Urban Communities: Demographic change & urban challenges: trends & countertrends2011In: Weimarpolis: Multi-disciplinary Journal of Urban Theory and Practice, ISSN 1869-1692, Vol. 1, no 3Article in journal (Refereed)
  • 212. Kennedy, J.
    et al.
    Leite, Iolanda
    KTH, School of Computer Science and Communication (CSC), Robotics, perception and learning, RPL. Disney Research, United States.
    Pereira, A.
    Sun, M.
    Li, B.
    Jain, R.
    Cheng, R.
    Pincus, E.
    Carter, E. J.
    Lehman, J. F.
    Learning and reusing dialog for repeated interactions with a situated social agent2017In: 17th International Conference on Intelligent Virtual Agents, IVA 2017, Springer, 2017, Vol. 10498, p. 192-204Conference paper (Refereed)
    Abstract [en]

    Content authoring for conversations is a limiting factor in creating verbal interactions with intelligent virtual agents. Building on techniques utilizing semi-situated learning in an incremental crowdworking pipeline, this paper introduces an embodied agent that self-authors its own dialog for social chat. In particular, the autonomous use of crowdworkers is supplemented with a generalization method that borrows and assesses the validity of dialog across conversational states. We argue that the approach offers a community-focused tailoring of dialog responses that is not available in approaches that rely solely on statistical methods across big data. We demonstrate the advantages that this can bring to interactions through data collected from 486 conversations between a situated social agent and 22 users during a 3 week long evaluation period.

  • 213. Khattak, M. I.
    et al.
    Khan, M. I.
    Najam, A. I.
    Saleem, Mohammad
    KTH, School of Architecture and the Built Environment (ABE), Transport Science.
    Shafi, M.
    A planar UWB antenna with tripple notched bands2018In: Proceedings - 9th International Conference on Computational Intelligence and Communication Networks, CICN 2017, Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 1-5Conference paper (Refereed)
    Abstract [en]

    This paper presents a rectangular planar monopole antenna with triple stop bands for ultra-wide band Applications. The antenna is compact size (24mm × 24mm × 1.6mm) and is covering the entire UWB band with VSWR < 2 except the band of WiMAX range from 3.07-4.73 GHz, the WLAN band range from 5.14-5.97 GHz and the ITU frequency band range from of 7.92-8.61 GHz. The three slots are added to this antenna to stop various bands. Different shaped slots i.e. inverted Z, C and U are introduced in radiating element to stop WiMAX, WLAN and ITU respectively. The antenna is simulated using High

  • 214.
    Klinteberg, Jakob
    KTH, School of Industrial Engineering and Management (ITM), Learning.
    En studie kring utformningen av en rutin för ett ökat hållbarhetsfokus i en decentraliserad organisation2018Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    The addition of the Annual Reports Act which was introduced in 2017, require large and medium-sized companies to report on their sustainability work. The new law creates great challenges for companies who will now report their sustainability work for the first time. The problem with reporting their environmental impact is the uncertainty with the calculations, especially with calculations from carbon dioxide emission from mobile sources. To calculate the carbon dioxide emission correct data must be collected uniformly in the organization. Zengun, which is a building entrepreneur and a decentralized organization will be doing their first sustainability reporting for 2017. It means that Zengun must collect data uniformly in the organization, where subcontractor is included.

    The aim of this study is to configure a routine to collect carbon dioxide data and investigate how the routine can contribute to the company’s sustainability work. Another aim is to map the internal communication regarding sustainability work in a decentralized organization.

    This result is based on material collected from a document study and interviews with key people within Zengun and Zengun’s subcontractors. The result shows that Zengun’s complex organization structure is a challenge when a routine will be implemented. The reason is that the view of a routine and sustainability work is different within the company. Subjectivity and extra work is some of the aspects which is mentioned as problematic.

    With support from the theories and previous research a routine has been configurated and the study shows that a routine will not in itself contribute to the company’s sustainability work, but it´s the start of a long progress towards a learning loop. Contradictions within the system can occur during the implementation of the routine. To handle the contradictions the communication through internal communication channels and contracts are crucial.

  • 215.
    Knutsson, Ola
    et al.
    Stockholm University.
    Nissilä, Niina
    University of Vaasa .
    Carlsson, Niss Jonas
    Brainglass AB.
    Räsänen, Minna
    Södertörn University.
    User-Driven Design of a Mobile Application for Teenagersʼ Language Homework2010In: The first nordic symposium on technology-enhanced learning (TEL): NORDITEL, August 26-27, 2010, Växjö, Sweden, 2010, p. 49-51Conference paper (Other academic)
    Abstract [en]

    In this paper we focus on mobile language learning, and the design and development of a mobile application for teenager’s homework in Swedish as a second language. In the project we have used participatory design methods, with the aim to have a user-driven design process. We wish discuss how these design methods, and design activities relate to how design is viewed in the field of educational science.

  • 216.
    Kohlberg, Marcus
    et al.
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Industrial marketing.
    Westman, Lars-Peter
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Industrial marketing.
    Advertising product improvement opportunities using segmentation in Video-on-Demand services: A case study of MTG’s opportunities in the shift from television to streaming video2014Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    More and more people choose to watch television online through online video-on- demand services. For media corporations, such as the Modern Times Group (MTG), this means that video-on-demand will become an increasingly important source of revenue. Because video-on-demand is an online service, advertising products offered therein are in competition with other online advertising products. Currently, MTG’s video-on-demand advertising products are the same as on regular television, meaning they haven’t yet taken advantage of any advertising product development opportunities made possible by Internet technology. The purpose of this thesis is therefore to determine what MTG’s strategy should be to improve the competitiveness and revenue of their video-on-demand advertising products, and what key concerns need to be addressed in order to realize the determined strategy. By request of the commissioner, MTG, possible uses of segmentation to achieve the strategy are studied.

    The methods used to collect data include multiple interviews both at MTG and at their current advertising customers, as well as web analytics and a questionnaire. Both qualitative and quantitative analysis was used to answer the research questions. Findings suggest that MTG should strive to improve the engagement of their advertising products, through the use of contextual segmentation and self-segmentation. This goes against the current trend in online advertising, where segmentation is primarily used for ad targeting. The reason for not adhering to the trend is that MTG’s advertising customers operate in a television mindset, where ad targeting is of a very limited nature and engagement is of greater perceived value.

  • 217. Koniaris, C.
    et al.
    Chatterjee, Saikat
    KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
    A sparsity based preprocessing for noise robust speech recognition2014In: 2014 IEEE Workshop on Spoken Language Technology, SLT 2014 - Proceedings, 2014, p. 513-518Conference paper (Refereed)
    Abstract [en]

    We show a method to sparsify the speech input that improves the robustness of an automatic speech recognizer. The proposed scheme is added to the system as a preprocessing module prior to the acoustic feature extraction. The preprocessing module passes the input speech signal through a linear predictive (LP) analysis filter and enforces sparsity in the LP residue domain. The sparsified prediction residue finally is filtered to generate the speech signal for computing a sequence of conventional feature vectors used in automatic speech recognition (ASR). Using standard feature vectors, our experiments show that sparsification in LP residue domain improves robustness in ASR performance.

  • 218.
    Koski, Timo
    et al.
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.).
    Sandström, Erik
    Sandström, Ulf
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Sustainability and Industrial Dynamics.
    Towards field-adjusted production: Estimating research productivity from a zero-truncated distribution2016In: Journal of Informetrics, ISSN 1751-1577, E-ISSN 1875-5879, Vol. 10, no 4, p. 1143-1152Article in journal (Refereed)
    Abstract [en]

    Measures of research productivity (e.g. peer reviewed papers per researcher) is a fundamental part of bibliometric studies, but is often restricted by the properties of the data available. This paper addresses that fundamental issue and presents a detailed method for estimation of productivity (peer reviewed papers per researcher) based on data available in bibliographic databases (e.g. Web of Science and Scopus). The method can, for example, be used to estimate average productivity in different fields, and such field reference values can be used to produce field adjusted production values. Being able to produce such field adjusted production values could dramatically increase the relevance of bibliometric rankings and other bibliometric performance indicators. The results indicate that the estimations are reasonably stable given a sufficiently large data set.

  • 219.
    Kourtit, Karima
    KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Urban and Regional Studies.
    Super-Proximity and Spatial Development2016In: INVESTIGACIONES REGIONALES, ISSN 1695-7253, no 36, p. 215-231Article in journal (Refereed)
    Abstract [en]

    Our world is getting smaller all the time. Connectivity and accessibility in space have improved to an unprecedented degree compared to past centuries, thanks to the enhanced design and effective implementation of transport infrastructure networks and increasingly also as a result of advance cyber infrastructure networks. Our connected and accessible world has indeed become "a small world". Technological innovation has become a buzzword in the past decades. The design, implementation and adoption of digital technology, in particular, have prompted entirely new forms of spatial interaction and communication, with a significant and unprecedented impact on transport, trade, tourism, migration, and social contact networks. In today's increasingly innovation-driven society, almost every activity, action, task, communication, interaction, movement and decision is supported by new technological artifacts and inventions. This paper introduces the notion of "super-proximity" to highlight the force field of physical and virtual infrastructures at various geographical scale and time levels, and to sketch the spatial-economic implications of this universal mega-trend towards zero distance-frictions. The paper will be concluded with some prospective observations on the future spatial implications of the e-society and their analysis.

  • 220.
    Kozica, Ermin
    et al.
    KTH, School of Electrical Engineering (EES), Sound and Image Processing (Closed 130101).
    Kleijn, W. Bastiaan
    KTH, School of Electrical Engineering (EES), Sound and Image Processing (Closed 130101).
    Analytical rate optimization for multicast2008Conference paper (Refereed)
    Abstract [en]

    We consider the problem of multicast rate optimization for a given number of multicast groups. The efficient solution of this problem is particularly relevant for video multicast. Motivated by practical considerations, such as the need for adaptivity to changing network conditions, we develop an analytical solution that minimizes the expected distortion of a receiver. Unlike previous work, we recognize variability in existing networks and model the receiver reception capacities by a continuous stochastic variable. Our analytical solution is optimal under the assumption of a large number of multicast groups. We investigate the distortion overhead when this assumption is not satisfied and find that it is low. We compare our results to the state of the art, iterative optimization for a realization of receiver reception capacities, and find that our analytical solution performs better for any number of multicast groups. copyright by EURASIP.

  • 221.
    Kronman, Ulf
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Library, Publication Infrastructure.
    Guide to Scientific Publication Management for Researchers at the KTH Royal Institute of Technology2011Report (Other (popular science, discussion, etc.))
    Abstract [en]

    The aim of this guide is to give you as a KTH researcher more insight on how bibliometric measures are increasingly being used to assess your research and to present some methods to make your research publications more visible and influential. The ultimate goal is to increase the impact of KTH research publications to gain best possible results in bibliometric studies and international university rankings.

    A summary of the tips and considerations mentioned in the guide:

    Check the outreach of your publishing channel. The channels with the most prominent outreach and impact on bibliometric studies are international journals covered by the indexing service Thomson Reuters Web of Science.

    Check the impact of your journal. If you are publishing in a journal, the Thomson Reuters Journal Impact Factor gives an indication of the average number of citations to articles in the journal.

    Publish in English. I you primarily publish your findings in Swedish journals or as reports, consider re-publishing your results in an international peer-reviewed journal for increased visibility and impact.

    Plan your research and publishing for cooperation. Co-authored publications have been shown to get more citations, thus usually ranking higher in bibliometric evaluations.

    Use a unique and consistent author name. Try to use an author name that is as consistent and unique as possible or register a unique author ID with the database vendors.

    Write your organisational affiliation in a way that is easy to identify by an international audience. The proper way to affiliate KTH is by starting the address with the KTH formal name "KTH Royal Institute of Technology", followed by the name of the school, department, research centre or group.

    Register your publication in the KTH publication database DiVA. Publication records from DiVA are used to calculate publishing indicators, both for the yearly KTH school performance indicators and for the KTH yearly allocation of funding to schools. Registration in DiVA is especially important for publications not covered by the Web of Science or Scopus databases, such as monographs, reports and conference proceedings papers.

    Publish your article Open Access if possible. Studies show that articles published for free access on the Internet gain more downloads and more citations. If your article is published in a traditional toll-based journal, you should try to do parallel publishing in the KTH publication database DiVA.

    Contact the Department of Publication Infrastructure for support and more information. The Library will give you advice in matters regarding publication outreach and impact, DiVA registration, Open Access and bibliometrics.

  • 222.
    Kukulska-Hulme, Agnes
    et al.
    The Open University (UK). The Institute of Educational Technology.
    Viberg, Olga
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Mobile collaborative language learning: State of the Art2018In: British Journal of Educational Technology, ISSN 0007-1013, E-ISSN 1467-8535, Vol. 49, no 2, p. 207-218Article, review/survey (Refereed)
    Abstract [en]

    This paper presents a review of mobile collaborative language learning studies published in 2012–16 with the aim to improve understanding of how mobile technologies have been used to support collaborative learning among second and foreign language students. We identify affordances, general pedagogical approaches, second- and foreign-language pedagogical approaches, second language acquisition (SLA) principles and affective designs. The results indicate that affordances such as flexible use, continuity of use, timely feedback, personalisation, socialisation, self-evaluation, active participation, peer coaching, sources of inspiration outdoors and cultural authenticity have been emphasised. These affordances were found to be particularly suited to promote social constructivism, which is often sustained by game-based, task based and seamless learning. In terms of second and foreign language pedagogical approaches, the combination of individualised and collaborative learning prevails, along with task based, situated and communicative language learning, and raising orthographic awareness. Among SLA principles, negotiation of meaning and opportunities for feedback are highlighted. Affective aspects include increases in motivation, engagement and enjoyment, mutual encouragement, reduction in nervousness and embarrassment, and a few negative reports of risk of distraction, safety concerns, feelings of uncertainty and technical problems. The reviewed studies present a convincing case for the benefits of collaboration in mobile language learning.

  • 223.
    Lager, Gunnar
    KTH, School of Education and Communication in Engineering Science (ECE).
    KTH in Sweden: Hosting june conference on Global Access to Science2007In: Library Hi Tech News, ISSN 0741-9058, Vol. 24, no 2, p. 21-22Article in journal (Other academic)
    Abstract [en]

    Purpose - The 2007 IATUL meeting will be held at the Royal Institute of Technology in Stockholm and this brief introduction to the host institution prepares committed and potential attendees of what they can expect. Design/methodology/approach - Provides a brief outline of what can be expected of the meeting. Findings - A state of the art and very attractive library will greet visitors when they come to the library and to Stockholm to attend what is expected to be a meeting of timely presentations by an international cadre of library professionals and an opportunity to explore Stockholm at probably its finest season. Practical implications - Interesting professional program awaits attendees in a wonderful setting with many talented colleagues from throughout northern Europe and many other continents. Orginality/value - Provides information of value to information management profesionals.

  • 224.
    Lantz, Ann
    KTH, Superseded Departments, Numerical Analysis and Computer Science, NADA.
    Does the use of E-mail change over time?2003In: International Journal of Human-Computer Interaction, ISSN 1044-7318, E-ISSN 1532-7590, Vol. 15, no 3, p. 419-431Article in journal (Refereed)
    Abstract [en]

    Many empirical studies of the use of e-mail have been performed, but longitudinal studies are not common. In this article a longitudinal study is presented, with data collected during 1994,1995, and 1998. The research question was as follows: How does the use of e-mail change over time concerning problems experienced with e-mail, the flow of messages, and time to handle mail (i.e., to send and receive a response)? Results show that the flow of messages was stable (sent mail per day) or doubled (received messages per day). Time to handle mail was stable over the 5 years, but the experienced amount of time to handle mail changed from not being sufficient to sometimes sufficient depending on the total work situation. Experienced problems with e-mail decreased during the 5-year study period. The time for respondents to reply to a message changed during this period from immediately to in a day or even a week. Respondents accepted not receiving replies to their own messages, but they used strategies to get answers to the most important messages.

  • 225.
    Lantz, Ann
    et al.
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Johansson, Stefan
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Hildén, Anita
    Borg, Johan
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Gulliksen, Jan
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Kognitiv tillgänglighet till elektronisk kommunikation, del två: En sammanfattning av utvärderade tillgänglighetsåtgärder2014Report (Other (popular science, discussion, etc.))
    Abstract [sv]

    Författarna har under perioden oktober 2013 – februari 2014 genomfört en systematisk kunskapsöversikt av utvärderade och rapporterade empiriska studier av tillgänglighet till elektronisk kommunikation för personer med kognitiva funktionshinder som inte publicerats vetenskapligt. Resultatet av denna studie presenteras på ett förenklat sätt i denna rapport.

  • 226.
    Lantz, Ann
    et al.
    KTH, School of Computer Science and Communication (CSC), Human - Computer Interaction, MDI.
    Räsänen, Minna
    KTH, School of Computer Science and Communication (CSC), Human - Computer Interaction, MDI.
    Forstorp, Per-Anders
    KTH, School of Computer Science and Communication (CSC), Human - Computer Interaction, MDI.
    Who do you think we are?: A paper about roles taken or expected in co-operative design projects2006In: Exploring Digital Artefacts: 2005 ICT and the Humanities Summer School / [ed] J. Bornebusch and P. Hernwall, School of Communication, Technology and Design Södertörn College University , 2006, p. 20-29Chapter in book (Other academic)
  • 227.
    Larsson, Marcus
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Industrial Marketing and Entrepreneurship.
    Enhancing the Value Proposition of Live Esports Consumption with AI Technology2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    When a company includes a new technology or innovation into their value proposition, customers may perceive it as an enhancement or deterioration. This phenomenon was explored in this study with a case study of a present case in the esports industry. Research have shown that AI (Artificial Intelligence) technology can be used to predict which team is going to win in a match in the esports game DotA 2. A prototype AI called Znipe Sense was developed and analyzed during this study to answer the question: How can a predictive AI affect the value proposition of live esports consumption? Znipe Sense was included into Znipe Esports’ value proposition during a tournament in February 2018. It was observed that Znipe Sense could predict outcomes of professional matches with a higher accuracy than human experts. The observations of Znipe Sense, an interview with experienced players, interviews with business professionals and internal company documents were used as empirical material for the analysis. How Znipe Sense affected the value proposition was analyzed through the factors: Performance, Ease-of-use, Reliability, Flexibility and Affectivity, also known as the PERFA framework. It was concluded that a predictive AI can enhance the value proposition of live esports consumption through the Performance and Ease-of-use factors, and it would not affect the value proposition through Reliability or Flexibility. However, in the analysis of the Affectivity factor it was identified that there is a risk related to negative effects of gambling addiction that could deteriorate the value proposition.

  • 228.
    Lashgari, Maryam
    KTH, School of Industrial Engineering and Management (ITM).
    B2B Social Media Interaction and Co-Creation with the Technology Consumers of the Future– The Case of 5GIn: Information Systems JournalArticle, review/survey (Refereed)
    Abstract [en]

    Researcher have attempted to explore or examine the adoption of social media with respect to different purposes in B2B context such as sales, public relation, marketing communication and more. This study investigates social media content sharing strategies through extending social power theory with resource dependence theory, and co-creation. The content sharing approaches examined within the B2B context are Public vs. Gated-Content approaches. The study examines target group’s response to the B2B firm’s content shared on social media, through imposed registration (Gated-Content) vs. no registration (Public- Content). Assisted by an experimental research design, this study tests the effect of Public and Gated-Content on three groups of participants. The respondents’ willingness to interact is measured through willingness to register on the Gated-Content, and willingness to comment on the post shared by the firm.

  • 229.
    Lashgari, Maryam
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.).
    Digital Marketing Strategy: B2B and Stakeholders Communication2018Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Since digital media entered the business domain, many different tools and platforms have transformed the nature of business communications. This transformation has not been easy, since the journey has been accompanied by challenges from the marketers’ side against the adoption of the new platforms into the firm’s communication channels. Business to business marketers have also been engaged in such challenges by maintaining a slow adoption, which has motivated the researchers to study the adoption of different means and tools of digital communication in a business context.

    Through this research, I contribute by exploring the adoption strategies of digital platforms in the B2B supply chain including B2B firms, retailers and end users. By digital media, I mainly refer to social media and beacon technology. First, I begin this thesis by identifying the adoption and integration strategies of social media and digital marketing into traditional marketing channels in a B2B context. In this part, I identify the B2B firms’ target audience and propose a model facilitating a B2B firm’s practical social media adoption strategies.

    Second, to explore the benefits of different social media content sharing approaches derived from information accessibility resulted in the prior study of this thesis, I introduce and examine Public and Gated-Content sharing approaches. Thereafter, assisted by Social Power Theory and Resource Dependence Theory, I examine the effect of Public and Gated-Content sharing approaches on the target audience’s willingness to interact with the firm. The findings of this study reveal that Gated-Content approach can help the firms build closer relationship with the target audience and engage them in a co-creation process.

    Third, by studying proximity marketing through the adoption of beacon technology in the retail context, I explore the current methods of usage, as well as the benefits and challenges of in-store proximity marketing adoption for content sharing purposes. I complete the thesis by presenting the different challenges of such adoption, which consist technical, human behavior, managerial perception, resource and privacy factors. Finally, I identify the need to integrate the physical aspect of place and location back again into the online digital communication channels within a retail context.

  • 230.
    Lashgari, Maryam
    KTH.
    Social Media as a Communication Channel in B2B – A Case Study2014In: Direct/Interactive Marketing Research Summit - PROCEEDINGS, 2014Conference paper (Refereed)
    Abstract [en]

    The purpose of this study is to enhance the understanding of social media adaptation strategies and their possible related benefits and challenges for business-to-business (B2B) firms. There is evidence provided by academics and supported by empirical studies thus far, accounting for social media as an advantageous medium in a business-to-consumer (B2C) context apart from the individual use. However, the focus and attention of academic research on adaptability of social media and social networks (SNs) to a B2B context is still under-researched. Previous research on social media usage and adaptation strategies emphasizes rather on adaptability of these communication tools to individual needs or a business-to-consumer context, whereas this paper attempts to demonstrate findings in adapting social media to the B2B domain. However, the results did not confirm any classification of SNs such as Facebook to be only a business-to-consumer medium within the commercial context.  In this respect, SNs appeared to be as effective and efficient for communication in the B2B context as in the B2C domain.

    The second part of the study, focusing on the benefits offered and challenges posed by using social media, reveals the B2B corporations facing rather similar factors as in the B2C context. The study validates previously introduced benefits of social media adaptation to be advantageous in the B2B corporations studied in this research such as: building and developing direct relationships with customers, increasing website traffic, creating communities, distributing content and collecting customer feedback. On the other hand the challenges to corporations are explored to include external or internal negative word of mouth, leading to limitations in content control by the firm, as well as insufficiency of technical support, training and differences in stakeholders’ online behavior.  

    This paper examines two global B2B corporations as cases demonstrating customized approaches towards social media communication. The study is assisted by an in-depth qualitative research method.  

  • 231. Lashgari, Maryam
    Social media technology adaptation in B2B – A case study2014Conference paper (Refereed)
    Abstract [en]

    The advent of social media as a modern communication tool has been extensively studied in the B2C domain; however its use as a communication platform in the B2B sector has thus far been under researched. This paper will examine two cases that will demonstrate different approaches to the social media communication paradigm. The inclusion of these techniques in the classical communication theory will be necessary as B2B and B2C become increasingly important in the modern business environment. Just as social media has proved to be advantageous in the B2C market, the same advantages exist within the B2B realm. With the proper application of the correct communication strategy it is hypothesized that an increase in business and benefits will follow, this will be examined from the perspective of the two case studies. 

  • 232.
    Lashgari, Maryam
    et al.
    KTH, School of Industrial Engineering and Management (ITM).
    Sutton-Brady, Catherine
    Benefits and challenges of proximity marketing through beacon technology adoption - an exploratory investigation in a retail contextIn: Article, review/survey (Refereed)
    Abstract [en]

    Proximity marketing assists retailers in gaining customer insights, tailoring customer communication and maximizing their profit. Adoption of beacon technology is a recent approach to establish proximity marketing. Although much research has discussed proximity marketing through the adoption of beacon technology, actual adoption has not grown significantly in recent years. Practitioners are still reluctant to utilize and integrate proximity marketing through beacons in their digital communications system. 

    The existing academic studies on adoption of beacons in proximity marketing mainly highlight the benefits provided. The challenges and barriers that emerge through the adoption process have not yet been fully addressed. This article attempts to explore the challenges of adopting beacon technology, as well as discussing the usage and the benefits of the technology for proximity marketing.

    By using a multiple case analysis of actual retail stores, we demonstrate that the benefits and the advantages discussed by previous studies may not be easily achieved. This is because of challenges the retail managers face through the actual adoption process. 

    The article classifies different usages of beacons in proximity marketing including close tap, walk past and walk in methods. It refers to the benefits gained, and discusses challenges faced under technical, human factor, perception, resource and privacy classification.  

  • 233.
    Lashgari, Maryam
    et al.
    KTH, School of Industrial Engineering and Management (ITM).
    Sutton-Brady, Catherine
    Solberg Søilen, Klaus
    Ulfvengren, Pernilla
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Industrial Management.
    Adoption Strategies of Social Media in B2B: A Multiple Case Study ApproachIn: Article, review/survey (Refereed)
    Abstract [en]

    Purpose – The purpose of this study is to clarify business-to-business (B2B) firms’ strategies of social media (SM) marketing communication. Secondly, to explore the factors contributing to the formation of adoption and integration strategies, and identify who the B2B firms target.

    Design/methodology/approach – A multiple case study approach is utilized to compare four multinational corporations and their practices. Face to face interviews with key managers, as well as extensive readings and observations of the firms’ websites and SM platforms have been conducted. 

    Findings – The study results in a model, illustrating different processes of selection, adoption and integration involved in the development of SM communication strategy for B2B firms. Major factors involved in determining the platform type, and strategies used within different phases and processes are identified.

    Research limitations/implications – Since the chosen methodology may limit generalizability, further research is encouraged to test the model within a B2B context especially within SMEs, as only large multinational corporations were investigated in this study.

    Practical implications – The paper provides insight in to how B2B marketers can align SM with the firm’s goals through the strategic selection of platforms in order to reach the targeted audience and communicate their message.

    Originality/value - The study uncovers the benefits gained by B2B firms’ through interaction with individuals on SM. This is a significant contribution as the value of such interaction was previously undefined and acted as a barrier for adopting SM in some B2B firms.

  • 234.
    Laurentz, Sara
    Svensk Kärnbränslehantering AB.
    Strategic Planning to Ensure Customer Satisfaction and Professional Fulfillment2007Other (Other (popular science, discussion, etc.))
    Abstract [en]

    Poster: 13th NORD I&D 2007 ”The Human side of IT”, June 18-19 2007, Aula Magna, Stockholm University, Stockholm, Sweden

  • 235. Lazar, J.
    et al.
    Abascal, J.
    Barbosa, S.
    Barksdale, J.
    Friedman, B.
    Grossklags, J.
    Gulliksen, Jan
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Johnson, J.
    McEwan, T.
    Martínez-Normand, L.
    Michalk, W.
    Tsai, J.
    Van Der Veer, G.
    Von Axelson, H.
    Walldius, Åke
    KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
    Whitney, G.
    Winckler, M.
    Wulf, V.
    Churchill, E. F.
    Cranor, L.
    Davis, J.
    Hedge, A.
    Hochheiser, H.
    Hourcade, J. P.
    Lewis, C.
    Nathan, L.
    Paterno, F.
    Reid, B.
    Quesenbery, W.
    Selker, T.
    Wentz, B.
    Human-computer interaction and international public policymaking: A framework for understanding and taking future actions2015In: Foundations and Trends in Human-Computer Interaction, ISSN 1551-3955, Vol. 9, no 2, p. 69-149Article in journal (Refereed)
    Abstract [en]

    This monograph lays out a discussion framework for understanding the role of human-computer interaction (HCI) in public policymaking. We take an international view, discussing potential areas for research and application, and their potential for impact. Little has been written about the intersection of HCI and public policy; existing reports typically focus on one specific policy issue or incident. To date, there has been no overarching view of the areas of existing impact and potential impact. We have begun that analysis and argue here that such a global view is needed. Our aims are to provide a solid foundation for discussion, cooperation and collaborative interaction, and to outline future programs of activity. The five sections of this report provide relevant background along with a preliminary version of what we expect to be an evolving framework. Sections 1 and 2 provides an introduction to HCI and public policy. Section 3 discusses how HCI already informs public policy, with representative examples. Section 4 discusses how public policy influences HCI and provides representative public policy areas relevant to HCI, where HCI could have even more impact in the future: (i) laws, regulations, and guidelines for HCI research, (ii) HCI research assessments, (iii) research funding, (iv) laws for interface design - accessibility and language, (v) data privacy laws and regulations, (vi) intellectual property, and (vii) laws and regulations in specific sectors. There is a striking difference between where the HCI community has had impact (Section 3) and the many areas of potential involvement (Section 4). Section 5 a framework for action by the HCI community in public policy internationally. This monograph summarizes the observations and recommendations from a daylong workshop at the CHI 2013 conference in Paris, France. The workshop invited the community's perspectives regarding the intersection of governmental policies, international and domestic standards, recent HCI research discoveries, and emergent considerations and challenges. It also incorporates contributions made after the workshop by workshop participants and by individuals who were unable to participate in the workshop but whose work and interests were highly related and relevant.

  • 236.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    An eye-tracking study of the influence of media technology on behaviour patterns in newspaper readingManuscript (Other academic)
  • 237.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    Is the medium the message?: The impact of digital media on the newspaper concept2007Doctoral thesis, comprehensive summary (Other scientific)
    Abstract [en]

    The impact of digital (new) media has caused both challenges and threats to newspapers’ continuing existence as a profitable and influential mass medium. While this is not the first time in history that new media appear to be challenging the future of the newspaper medium, from one perspective digital media offer not only direct competition, or alternative ways to produce and deliver news, but also possibilities for convergence, for making new media part of the traditional newspaper, inducing whole new possibilities for publishing. From another perspective, the newspaper medium is an old concept; a powerful mass medium with very profound consumption patterns, strongly associated with its traditional output medium: ink-on-paper.

    The purpose of the present work has been to examine the impacts digital media have on the old, well-established newspaper medium, and what consequences these impacts have for the future of newspaper as a mass medium, that is, is the medium the message? In order to achieve this aim, the present work has been carried out from three different angles: digital media, publishing and reading behaviour and presentation factors. The areas have been examined using several methods: instrumental experiment, eye-tracking experiment, secondary analysis, and case study design.

    Newspapers’ ’to be or not to be’ depends, in a theoretical sense, on what media constitute. The medium is the message in the sense that, in the definition of a mass medium, the strength of the newspaper message is that it is recognized as the newspaper concept. It is not, in that the message per se is dependent on the medium it is reproduced on, as a newspaper can be considered a newspaper even if presented on a digital medium, yet the specific way the content is presented will always depend on the technology and characteristics of the chosen output medium. Thus, while defusing the output medium’s significance for the concept, the strength of the newspaper, and its industry, lies in what hitherto constitutes the message: accurate, credible, serendipitous, and diverse content, but which is continuously adapted to the technology of the output medium, thus benefiting from it and further strengthening the developed, digitalized newspaper concept, or what will become of it. The newspaper industry has great potential to differentiate itself in a world where news is becoming increasingly commoditized, though it must further emphasize its power, which lies in the long-defined ‘old’ newspaper concept. Moreover, the industry must be aware of the fact that this refashioning and adaptation is a slow process.

  • 238.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    LCD hardware characteristics of relevance for colour-critical work: Part I. Fundamental aspects of monitor quality2006In: Journal of Graphic Technology, ISSN 1544-9599, E-ISSN 1544-9602, TAGA Journal - Journal of Graphic Technology, ISSN 1748-0345, Vol. 3, no 1, p. 1-16Article in journal (Refereed)
  • 239.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    LCD hardware characteristics of relevance for colour-critical work: Part II. Aspects of importance for calibration and characterization2007In: TAGA Journal - Journal of Graphic Technology, ISSN 1748-0345, Vol. 3, no 3, p. 105-118Article in journal (Refereed)
  • 240.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    Presentation factors affecting the reading behaviour in readers of newspaper mediaArticle in journal (Refereed)
  • 241.
    Leckner, Sara
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    Reading behaviours in readers of newspaper mediaArticle in journal (Refereed)
  • 242.
    Leckner, Sara
    et al.
    KTH, School of Computer Science and Communication (CSC), Numerical Analysis and Computer Science, NADA.
    Appelgren, Ester
    E-paper news publishing: strategies for product and production2007In: Nordicom Review, ISSN 1403-1108, E-ISSN 2001-5119, Vol. 28, no 2, p. 20-Article in journal (Refereed)
  • 243.
    Lee, Linda
    KTH, School of Industrial Engineering and Management (ITM), Industrial Economics and Management (Dept.), Industrial marketing.
    Advice from creative consumers: a study of online hotel reviews2014In: International Journal of Technology Marketing, ISSN 1741-878X, E-ISSN 1741-8798, Vol. 9, no 1, p. 53-71Article in journal (Refereed)
    Abstract [en]

    This studyexplores what creative consumers are compelled to say about hotels throughonline reviews.  Online reviews arehighly influential, with consumers preferring the advice of other consumersover industry experts or information provided by the marketer.  Over 7,000 online hotel reviews posted onTripAdvisor were examined, using Leximancer, a content analysis tool.  This study provides insights on the factorscontributing to guest satisfaction and dissatisfaction in luxury hotels andmoderate hotels.  It also demonstrates theimportance of the information provided by creative consumers, both in terms ofmarket research and as part of an overall marketing communicationsinitiative. 

  • 244.
    Leichtfried, Cornelia
    KTH, School of Computer Science and Communication (CSC).
    Digital Workplace Platforms and Knowledge Sharing: A Case Study2016Independent thesis Advanced level (degree of Master (Two Years)), 80 credits / 120 HE creditsStudent thesis
    Abstract [en]

    In today’s knowledge based economy information is a company’s most valuable resource. The technology industry in particular demands vast amounts of knowledge for innovation and development. Software development requires constantcommunication, exchange and collaboration. Although there is a variety of business collaboration and communication tools on the market, from a rather basic social intranet to a full-fledged digital workplace, most organization cannot manage to harvest their full potential and benefits for their business’s performance.

    By means of a case study carried out at an internationally operating Swedish game development studio this report aims to investigate what technological andcultural factors influence the result of an organization’s communication ecosystem. Based on the findings the goal is to better understand how to implement collaborative tools that add value to employees’ work with a focus on knowledge sharing.

    A literature study to identify common factors that are intertwined with the success of an organization’s collaboration tools ecosystem was performed. Thereafter a number of selected employees were involved in qualitative research in the form of interviews, focus groups and contextual inquiries at their workplace.

    The literature revealed 10 recurring factors that are inseparable from the success or failure of an internal communication ecosystem. The main findings include that a well functioning digital workplace initiative by all means can improve overall performance, not only increasing work efficiency but also by positively influencing employees’ relationships.

    Digital workplace tools have become an essential part of modern business operations and will most likely become even more important in the near future. Businesses must learn much about themselves, their employees and how to make knowledge accessible without hindrances if they want to stay competitive in the world of tomorrow.

  • 245.
    Leijon, Arne
    et al.
    KTH, School of Electrical Engineering (EES), Sound and Image Processing (Closed 130101).
    Stadler, Svante
    KTH, School of Electrical Engineering (EES), Sound and Image Processing (Closed 130101).
    Fast amplitude compression in hearing aids improves audibility but degrades speech information transmission2008Conference paper (Refereed)
    Abstract [en]

    Common types of hearing impairment are caused mainly by a loss of nearly instantaneous compressive amplification in the inner ear. Therefore, it seems plausible that the loss might be compensated by fast frequency-dependent compression in the hearing aid. We simulated impaired listeners' auditory analysis of hearing-aid processed speech in noise using a functional auditory model. Using hidden Markov signal models, we estimated the mutual information between the phonetic structure of clean speech and the neural output from the auditory model, with fast and slow versions of hearing-aid compression. The long-term speech spectrum of amplified sound was identical in both systems, as specified individually by the widely accepted NAL prescription for the gain frequency response. The calculation showed clearly better speech-to-auditory information transmission with slow quasi-linear amplification than with fast hearing-aid compression, for speech in speech-shaped noise at signal-to-noise ratios ranging from -10 to +20 dB.

  • 246.
    Lenczuk, Hannah
    KTH, School of Computer Science and Communication (CSC).
    From Corporate Greenwashing to Ecopreneurship: Sustainability as a Business Model2017Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Being green has never been as omnipresent as nowadays. Finite resources, growing population, natural resources degradation, and biodiversity loss to name some examples are reasons why major changes towards greener strategies in the economy are needed (Volery, 2015).

    Although research in the field of sustainable entrepreneurship has increased in the past two decades, no clear definition of ecopreneurship is existing yet. Many different terms are used to describe a similar concept (Gast, Gundolf, and Cesinger, 2017). It is self-explanatory that ecological sustainable entrepreneurship is a subfield of entrepreneurship, but the relation to social entrepreneurship gets blurry.

    With the help of a systematic literature review and interviews with experts, the question of how ecological sustainable entrepreneurship, which in the following is named ecopreneurship, can be defined as a subfield of entrepreneurship, is answered. The results of the literature review are analyzed with the focus on similarities and differences in definitions and put into context in a concept map to create a new and clearer definition of ecopreneurship. Furthermore interviews with experts in research and the industry are used to verify the newly formed definition and compare the findings in the literature with how researchers and practitioners see the field. Throughout the analysis, the question of how ecopreneurship differentiates from social entrepreneurship, is present. A detailed analysis of the relations between sustainability-related subforms of entrepreneurship brings better insights on how ecopreneurship is linked to social entrepreneurship.

    In summary defining ecopreneurship is di cult, because some characteristics can be interpreted in many dfferent ways depending on the perspective it is looked at. Findings in the literature are very much in line with how researchers and practitioners see and define the field. Nevertheless, different approaches towards ecopreneurship result in slightly different characteristics of ecopreneurship.

    This work provides future researchers with a clear defini- tion of what ecopreneurship is and how it is related to concepts like social entrepreneurship, sustainability entrepreneurship and traditional entrepreneurship. 

  • 247.
    Lenells, Jonatan
    et al.
    KTH, School of Engineering Sciences (SCI), Mathematics (Dept.), Mathematics (Div.).
    Stea, D.
    Foss, N.J.
    Optimal contracting under adverse selection: The implications of mentalizing2015In: Współczesna Ekonomia, ISSN 1897-9254, Vol. 9, no 2, p. 215-232Article in journal (Refereed)
    Abstract [en]

    We study a model of adverse selection, hard and soft information, and mentalizing ability—the human capacity to represent others’ intentions, knowledge, and beliefs. By allowing for a continuous range of different information types, as well as for different means of acquiring information, we develop a model that captures how principals differentially obtain information on agents. We show that principals that combine conventional data collection techniques with mentalizing benefit from a synergistic effect that impacts both the amount of information that is accessed and the overall cost of that information. This strategy affects the properties of the optimal contract, which grows closer to the first best. This research provides insights into the implications of mentalizing for agency theory.

  • 248.
    Lenman, Sören
    et al.
    KTH, School of Computer Science and Communication (CSC), Human - Computer Interaction, MDI.
    Räsänen, Minna
    Thuresson, Björn
    KTH, School of Computer Science and Communication (CSC), Human - Computer Interaction, MDI.
    User oriented Approach to Building a Video Community in a Distributed Workplace2002In: Proceedings of the Participatory Design Conference, PDC2002, 2002, p. 323-327Conference paper (Refereed)
    Abstract [en]

     In this paper we present experiences from a two-month prestudy on the possible creation of a communication environment (Media Space) between the three different locales of a distributed Call Centre. A spectrum of user-oriented methods was used in the study, and the staff at the Call Centre took part through interviews, discussions, and a workshop. The approach yielded useful information, and the feedback from the user group was very positive. Some pitfalls and risks were identified, such as technology focus, and to come up with solutions rather than to reflect on needs. A useful foundation was laid for the continuation of the project, which includes continued co-operative design work and the establishment of a communication environments in the workplaces.

  • 249.
    Lie, Christer
    KTH, School of Computer Science and Communication (CSC), Media Technology and Graphic Arts, Media.
    The influence of backpressure on ink drying and dot gain in sheet fed offset printing2004In: ADVANCES IN PRINTING AND MEDIA TECHNOLOGY, VOL XXXIII, Zagreb: ACTA GRAPHICA PUBL , 2004, Vol. 33, p. 245-253Conference paper (Refereed)
    Abstract [en]

    Preliminary test printing indicated that increasing the impression of the paper against the blanket cylinder in sheet-fed offset printing might lead to a faster ink drying. Therefore in order to verify the results a new test run was carried out based on print trials using a Solna 424 sheet-fed press where the impression was adjusted from low to high values. Three paper grades, gloss coated, silk coated and uncoated grades were printed with two blankets with different hardness. Ink drying was measured as rub-off at time intervals so that drying curves Could be plotted. The ink transfer was measured by using XRF, x-ray fluorescent technology. Print density and dot gain was measured in 100%, 80% and 40% dot area. The results from the drying evaluation disagree with the results from the preliminary test printing, no correlation between drying rate and level of impression was found. The results from the dot gain measurements show that the dot gain is not increased with increased level of impression, it remains on a constant value.

  • 250.
    Lie, Christer
    et al.
    KTH, School of Computer Science and Communication (CSC), Media Technology and Graphic Arts, Media.
    Kolseth, Petter
    KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
    Aspects of water-induced mottle when printing on coated paper in sheet-fed lithographic offset2007In: ADVANCES IN PRINTING AND MEDIA TECHNOLOGY, VOL XXXIV   / [ed] Enlund N, Lovrecek M, Zagreb: ACTA GRAPHICA PUBL , 2007, Vol. 34, p. 59-67Conference paper (Refereed)
    Abstract [en]

    Uneven print density, print mottle or mottle, call cause severe print quality problems and is a frequent problem for printers. Print mottle can occur ill sheet-fed offset due to several reasons related to both the paper and its coating and the printing press. The aim of the project was therefore to improve our knowledge of the influence on mottle related to the fountain solution which dampens the paper surface, water induced mottle. Pilot coated papers were produced and printed in a full-scale 4-colour sheet-fed offset printing press. During printing a specially designed test form was used. This must be used together with a blanket which has cut-out areas corresponding to the areas oil the test form. In this way it is possible to create a number of different printing situations oil the same printed paper sheet. The results from the print trials show that fountain solution from the previous printing unit can cause a decreased print density and dot gain. Water induced print mottle is Caused by the fountain solution from the previous printing unit. Back-trap from the following print units Will have a smoothing effect and will decrease the mottle. The results are based oil a hypothesis test at the 5% level. Water induced mottle can be related to both the printing process and the paper. The structure of the paper coating, Uneven porosity distribution, has a high influence oil water induced mottle while the effect of the Surface chemistry is low. The paper with high SB latex content showed the most uneven porosity distribution.

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