Weakly labeled training videosTaggedw 147dog148PositivesegmentsNegativeSegmentsSpatiotemporal segmentationoncept anking ccordingto egative xemplarsRanked positive segmentsEvaluate using precis ID: 215089
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Spatiotemporal segmentationSemantic object segmentation Weakly labeled training videosTaggedw/ “dog”PositivesegmentsNegativeSegmentsSpatio-temporal segmentationoncept anking ccordingto egative xemplarsRanked positive segmentsEvaluate using precision-recallmeasure over segmentstransductive segment annotationLearn segment classi erTestsegmentsRanked test segmentsEvaluate using precision-recallmeasure over segmentsinductive segment annotation Taggedw/o “dog”Weakly labeled test videos by probability of belonging to “dog”using top ranked positives + all negatives Video Data Scenarios Positive Segments Negative Segments Positive Segments Negative Segments CBA A B = Concept = Background = Negative ? ? - - - - - - - - - - ? ? ? - ? - Uncertain Positive InstanceNegative Instance ? ? ? ? ? ? ? ? ? ? ? ? - ? ? - - - - - - - CRANE (b)