- Alexander Hauptmann. 2007. UNDIRECTEDGRAPHICALMODELS FORVIDEOANALYSISAND CLASSIFICATION. Abstract: Accurate andefficient videoclassification andretrieval demandsthefusion ofmultimodal information andtheuseof intermediate representations. Thispaperdescribes anundirected graphical modelbasedonexponential-family harmonium, whichderives intermediate semantic representations of video databyjointly modeling thetextual andimageinformation inthevideo. Wepropose anextension ofthemodel toderive category-specific video representation andintegrate video classification asapartofthemodeling process. We report satisfactory classification performance onasetof15 video categories fromTRECVIDcollection aswellascomparison ontheeffectiveness ofdifferent inference algorithms.
