Initialization Framework for Latent Variable Models

Heydar Maboudi Afkham; Carl Henrik Ek; Stefan Carlsson

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Paper

Initialization Framework for Latent Variable Models

Topics: Classification; Clustering; Object Recognition

In Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods ICPRAM - Volume 1, 227-232, 2014 , ESEO, Angers, Loire Valley, France

Authors: Heydar Maboudi Afkham ; Carl Henrik Ek and Stefan Carlsson

Affiliation: KTH, Sweden

Keyword(s): Latent Variable Models, Clustering, Classification, Localization.

Related Ontology Subjects/Areas/Topics: Applications ; Classification ; Clustering ; Object Recognition ; Pattern Recognition ; Software Engineering ; Theory and Methods

Abstract: 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.

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Paper citation in several formats:

Maboudi Afkham, H., Ek, C. H. and Carlsson, S. (2014). Initialization Framework for Latent Variable Models. In Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods - ICPRAM; ISBN 978-989-758-018-5; ISSN 2184-4313, SciTePress, pages 227-232. DOI: 10.5220/0004826302270232

@conference{icpram14,
author={Heydar {Maboudi Afkham} and Carl Henrik Ek and Stefan Carlsson},
title={Initialization Framework for Latent Variable Models},
booktitle={Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods - ICPRAM},
year={2014},
pages={227-232},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004826302270232},
isbn={978-989-758-018-5},
issn={2184-4313},
}

TY - CONF

JO - Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods - ICPRAM
TI - Initialization Framework for Latent Variable Models
SN - 978-989-758-018-5
IS - 2184-4313
AU - Maboudi Afkham, H.
AU - Ek, C.
AU - Carlsson, S.
PY - 2014
SP - 227
EP - 232
DO - 10.5220/0004826302270232
PB - SciTePress