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Initialization framework for latent variable models
KTH, Skolan för datavetenskap och kommunikation (CSC), Datorseende och robotik, CVAP.
KTH, Skolan för datavetenskap och kommunikation (CSC), Datorseende och robotik, CVAP.
KTH, Skolan för datavetenskap och kommunikation (CSC), Datorseende och robotik, CVAP.
2014 (engelsk)Inngår i: ICPRAM 2014 - Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods, 2014, s. 227-232Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In this paper, we discuss the properties of a class of latent variable models that assumes each labeled sample is associated with set of different features, with no prior knowledge of which feature is the most relevant feature to be used. Deformable-Part Models (DPM) can be seen as good example of such models. While Latent SVM framework (LSVM) has proven to be an efficient tool for solving these models, we will argue that the solution found by this tool is very sensitive to the initialization. To decrease this dependency, we propose a novel clustering procedure, for these problems, to find cluster centers that are shared by several sample sets while ignoring the rest of the cluster centers. As we will show, these cluster centers will provide a robust initialization for the LSVM framework.

sted, utgiver, år, opplag, sider
2014. s. 227-232
Emneord [en]
Classification, Clustering, Latent variable models, Localization, Classification (of information), Software engineering, Cluster centers, Novel clustering, Prior knowledge, Relevant features, Sample sets, Pattern recognition
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-168883Scopus ID: 2-s2.0-84902354502ISBN: 9789897580185 (tryckt)OAI: oai:DiVA.org:kth-168883DiVA, id: diva2:819337
Konferanse
3rd International Conference on Pattern Recognition Applications and Methods, ICPRAM 2014, 6 March 2014 through 8 March 2014, Angers, Loire Valley
Merknad

QC 20150610

Tilgjengelig fra: 2015-06-10 Laget: 2015-06-09 Sist oppdatert: 2018-01-11bibliografisk kontrollert

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Totalt: 458 treff
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