Introduction to artificial intelligence
Introduction to artificial intelligence
Maintaining knowledge about temporal intervals
Communications of the ACM
Logical form of complex sentences in task-oriented dialogues
ACL '91 Proceedings of the 29th annual meeting on Association for Computational Linguistics
A simplified theory of tense representations and constraints on their composition
ACL '90 Proceedings of the 28th annual meeting on Association for Computational Linguistics
The interpretation of tense and aspect in English
ACL '88 Proceedings of the 26th annual meeting on Association for Computational Linguistics
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Tense, temporal adverbs, and temporal connectives provide information about when events described in English sentences occur. To extract this temporal information from a sentence, it must be parsed into a semantic representation which captures the meaning of tense, temporal adverbs, and temporal connectives. Representations were developed for the basic tenses, some temporal adverbs, as well as some of the temporal connectives. Five criteria were suggested for judging these representations, and based on these criteria the representations were judged.