Abstract:We present an indexing method for spatiotemporal data: semantic sequence state graph (S 3 G). S 3 G maintains objects with their locations as states and events as transitions. The spatial information is maintained in states while the semantic events result in temporal ordering between the states. If the objects visit the same locations repeatedly, we call such databases as recurrent databases. Our querying interface supports queries based on spatiotemporal logic that includes operators such as 'next' and 'even… Show more
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