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  • 1.
    Sandewall, Erik
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure. Department of Computer and Information Science, Linköping University, Sweden.
    Artificial intelligence needs open-access knowledgebase contents2008In: Proc Natl Conf Artif Intell, 2008, p. 1602-1605Conference paper (Refereed)
  • 2.
    Sandewall, Erik
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Defeasible inheritance with doubt index and its axiomatic characterization2010In: Artificial Intelligence, ISSN 0004-3702, E-ISSN 1872-7921, Vol. 174, no 18, p. 1431-1459Article in journal (Refereed)
    Abstract [en]

    This article introduces and uses a representation of defeasible inheritance networks where links in the network are viewed as propositions, and where defeasible links are tagged with a quantitative indication of the proportion of exceptions, called the doubt index. This doubt index is used for restricting the length of the chains of inference. The representation also introduces the use of defeater literals that disable the chaining of subsumption links. The use of defeater literals replaces the use of negative defeasible inheritance links, expressing "most A are not B". The new representation improves the expressivity significantly. Inference in inheritance networks is defined by a combination of axioms that constrain the contents of network extensions, a heuristic restriction that also has that effect, and a nonmonotonic operation of minimizing the set of defeater literals while retaining consistency. We introduce an underlying semantics that defines the meaning of literals in a network, and prove that the axioms are sound with respect to this semantics. We also discuss the conditions for obtaining completeness. Traditional concepts, assumptions and issues in research on nonmonotonic or defeasible inheritance are reviewed in the perspective of this approach.

  • 3.
    Sandewall, Erik
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure. Linköping University, Sweden.
    Experience of two-stage peer review in the ETAI, 1997 - 20012009In: WMSCI 2009 - The 13th World Multi-Conference on Systemics, Cybernetics and Informatics, Jointly with the 15th International Conference on Information Systems Analysis and Synthesis, ISAS 2009 - Proc., 2009, p. 285-290Conference paper (Refereed)
    Abstract [en]

    We describe the two-stage peer review model that, was used by the Electronic Transact ions on Artificial Intelligence (ETAI) from 1997 to 2001. In the first review stage, which in principle lasted for three months, submitted articles were openly discussed using a web-based forum and communication by email. This provided feedback to the authors for revising the article. In the second review stage, anonymous reviewers judged the revised submission on a pass-fail basis. We discuss the initial reactions to this model, the experience from using it, and the ramifications of (his model for the concept of publication and for priority of results.

  • 4.
    Sandewall, Erik
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Publication Infrastructure.
    Maintaining live discussion in two-stage open peer review2012In: Frontiers in Computational Neuroscience, ISSN 1662-5188, E-ISSN 1662-5188, Vol. 6, p. 9-Article, review/survey (Refereed)
    Abstract [en]

    Open peer review has been proposed for a number of reasons, in particular, for increasing the transparency of the article selection process for a journal, and for obtaining a broader basis for feedback to the authors and for the acceptance decision. The review discussion may also in itself have a value for the research community. These goals rely on the existence of a lively review discussion, but several experiments with open-process peer review in recent years have encountered the problem of faltering review discussions. The present article addresses the question of how lively review discussion may be fostered by relating the experience of the journal Electronic Transactions on Artificial Intelligence (ETAI) which was an early experiment with open peer review. Factors influencing the discussion activity are identified. It is observed that it is more difficult to obtain lively discussion when the number of contributed articles increases, which implies difficulties for scaling up the open peer review model. Suggestions are made for how this difficulty may be overcome.

  • 5.
    Sandewall, Erik
    KTH, School of Education and Communication in Engineering Science (ECE), Department for Library services, Language and ARC, Library, Publication Infrastructure.
    The Leordo computation system2009In: From Semantics to Computer Science: Essays in Honour of Gilles Kahn, Cambridge University Press, 2009, Vol. 9780521518253, p. 309-336Chapter in book (Other academic)
    Abstract [en]

    The purpose of the research reported here was to explore an alternative way of organizing the general software structure in computers, eliminating the traditional distinctions between operating system, programming language, database system, and several other kinds of software. We observed that there is a lot of costly duplication of concepts and of facilities in the conventional architecture, and believe that most of that duplication can be eliminated if the software is organized differently. This article describes Leordo, an experimental software system that has been built in order to explore an alternative design and to try to verify the hypothesis that a much more compact design is possible and that concept duplication can be eliminated or at least greatly reduced. Definite conclusions in those respects can not yet be made, but the indications are positive and the design that has been Introduction, Project goal and design goals, Leordo is a software project and an experimental software system that integrates capabilities that are usually found in several different software systems: in the operating system, in the programming language and programming environment, in an intelligent agent system, in a text formatting system, and others more. I believe that it should be possible to make a much more concise, efficient, and user-friendly design of the total software system in the conventional (PC-type) computer by integrating capabilities and organizing them in a new way.

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