About: Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Unexpected stimuli are a challenge to any machine learning algorithm. Here we identify distinct types of unexpected events, when general level and specific level classifiers give conflicting predictions. We define a formal framework for the representation and processing of incongruent events: Starting from the notion of label hierarchy, we show how partial order on labels can be deduced from such hierarchies. For each event, we compute its probability in different ways, based on adjacent levels in the label hierarchy. An incongruent event is an event where the probability computed based on some more specific level is much smaller than the probability computed based on some more general level, leading to conflicting predictions. Algorithms are derived to detect incongruent events from different types of hierarchies, different applications and a variety of data types. We present promising results for the detection of novel visual and audio objects, and new patterns of motion in video. We also discuss the detection of Out Of Vocabulary words in speech recognition, and the detection of incongruent events in a multimodal audiovisual scenario. Unexpected stimuli are a challenge to any machine learning algorithm. Here we identify distinct types of unexpected events, when general level and specific level classifiers give conflicting predictions. We define a formal framework for the representation and processing of incongruent events: Starting from the notion of label hierarchy, we show how partial order on labels can be deduced from such hierarchies. For each event, we compute its probability in different ways, based on adjacent levels in the label hierarchy. An incongruent event is an event where the probability computed based on some more specific level is much smaller than the probability computed based on some more general level, leading to conflicting predictions. Algorithms are derived to detect incongruent events from different types of hierarchies, different applications and a variety of data types. We present promising results for the detection of novel visual and audio objects, and new patterns of motion in video. We also discuss the detection of Out Of Vocabulary words in speech recognition, and the detection of incongruent events in a multimodal audiovisual scenario. (en)
Title	Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree (en)
skos:prefLabel	Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree (en)
skos:notation	RIV/68407700:21230/12:00196128!RIV13-MSM-21230___
http://linked.open...avai/predkladatel	Fakulta elektrotechnická
http://linked.open...avai/riv/aktivita	R
http://linked.open...avai/riv/aktivity	R
http://linked.open...iv/cisloPeriodika	10
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Pajdla, Tomáš Havlena, Michal
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	124795
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/12:00196128
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Novelty Detection; Categorization; Object Recognition; Out Of Vocabulary Words (en)
http://linked.open.../riv/klicoveSlovo	Categorization Novelty Detection Object Recognition Out Of Vocabulary Words
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[33597FB4021D]
http://linked.open...i/riv/nazevZdroje	IEEE Transactions on Pattern Analysis and Machine Intelligence
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	12 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	34
http://linked.open...iv/tvurceVysledku	Pajdla, Tomáš Havlena, Michal Anemüller, J. Bach, J. Hermansky, H. Kombrink, S. Nater, F. Ohl, F. W. Pavel, M. Van Gool, L. Weinshall, D. Zweig, A.
http://linked.open...ain/vavai/riv/wos	000307522700002
issn	0162-8828
number of pages	16 (xsd:int)
http://bibframe.org/vocab/doi	10.1109/TPAMI.2011.279
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	Beyond Novelty Detection: Incongruent Events, when General and Specific Classifiers Disagree

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