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Ambiguity modeling in latent spaces
Vise andre og tillknytning
2008 (engelsk)Inngår i: MACHINE LEARNING FOR MULTIMODAL INTERACTION, PROCEEDINGS / [ed] PopescuBelis, A; Stiefelhagen, R, BERLIN: SPRINGER-VERLAG BERLIN , 2008, s. 62-73Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

We are interested in the situation where we have two or more representations of an underlying phenomenon. In particular we are interested in the scenario where the representation Lire complementary. This implies that a single individual representation is not sufficient to fully discriminate a specific instance of the underlying phenomenon, it also means that each representation is an ambiguous representation of the other complementary spaces. In this paper we present a latent variable model capable of consolidating multiple complementary representations. Our method extends canonical correlation analysis by introducing additional latent spaces that Lire specific to the different representations, thereby explaining the full variance of the observations. These additional spaces, explaining representation specific variance, separately model the variance in a representation ambiguous to the other. We develop a spectral algorithm for fast computation of the embeddings and a probabilistic model (based on Gaussian processes) for validation and inference. The proposed model has several potential application areas, we demonstrate its use for multi-modal regression on a benchmark human pose estimation data set.

sted, utgiver, år, opplag, sider
BERLIN: SPRINGER-VERLAG BERLIN , 2008. s. 62-73
Serie
Lecture Notes in Computer Science, ISSN 0302-9743
Emneord [en]
VARIABLE MODELS, HUMAN POSE
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-50656ISI: 000259923700006OAI: oai:DiVA.org:kth-50656DiVA, id: diva2:462375
Konferanse
5th International Workshop on Machine Learning for Multimodal Interaction. Utrecht, NETHERLANDS. SEP 08-10, 2008
Merknad

QC 20111208

Tilgjengelig fra: 2011-12-07 Laget: 2011-12-07 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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Ek, Carl Henrik

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RefereraExporteraLink to record
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