AAAI Publications, Twenty-Seventh AAAI Conference on Artificial Intelligence

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Generating Natural-Language Video Descriptions Using Text-Mined Knowledge
Niveda Krishnamoorthy, Girish Malkarnenkar, Raymond Mooney, Kate Saenko, Sergio Guadarrama

Last modified: 2013-06-30

Abstract


We present a holistic data-driven technique that generates natural-language descriptions for videos. We combine the output of state-of-the-art object and activity detectors with "real-world' knowledge to select the most probable subject-verb-object triplet for describing a video. We show that this knowledge, automatically mined from web-scale text corpora, enhances the triplet selection algorithm by providing it contextual information and leads to a four-fold increase in activity identification. Unlike previous methods, our approach can annotate arbitrary videos without requiring the expensive collection and annotation of a similar training video corpus. We evaluate our technique against a baseline that does not use text-mined knowledge and show that humans prefer our descriptions 61% of the time.

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