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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Under consideration for publication in Theory and Practice of Logic Programming 1 A Probabilistic Logic Programming Event Calculus Anastasios Skarlatidis; Er Artikis; Georgios Paliouras In: http://users.iit.demokritos.gr/~a.artikis/publications/artikis-TPLP.pdf (2012) Abstract: We present a system for recognising human activity given a symbolic representation of video content. The input of our system is a set of time-stamped short-term activities (STA) detected on video frames. The output is a set of recognised long-term activities (LTA), which are pre-defined temporal combinations of STA. The constraints on the STA that, if satisfied, lead to the recognition of a LTA, have been expressed using a dialect of the Event Calculus. In order to handle the uncertainty that naturally occurs in human activity recognition, we adapted this dialect to a state-of-the-art probabilistic logic programming framework. We present a detailed evaluation and comparison of the crisp and probabilistic approaches through experimentation on a benchmark dataset of human surveillance videos. Keyword: Event Calculus; Event Pattern Matching; Event Recognition; ProbLog URL: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.3155 http://users.iit.demokritos.gr/~a.artikis/publications/artikis-TPLP.pdf BASE Hide details

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