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Temporal Reasoning in Natural Language Processing: A Survey

By Suresh Kumar Sanampudi


Reasoning with temporal information in natural language text has attracted great attention due to its potential applications in summarization, question answering and other tasks. For example, the chronological ordering of events described in a text is important for presenting the information in the summary. Linking information in a natural language text with temporal relations is essential in question answering system to address time sensitive and dynamic world. A crucial first step towards the computational treatment of the temporal information in these applications is the automatic extraction of events described in the text and identification of temporal relations to link these events. Much of the work done in this direction can be classified as-Annotation schemes for identification of events and time implicit in the text, linking the events using temporal relations and Temporal reasoning for solving practical applications. The present paper is a survey of various proposals to address these issues. Various annotation schemas developed to represent temporal information in natural language text. A discussion of the frameworks for temporal reasoning and tractable classes is described. The usefulness of these models to applications such as summarization and question answering are also presented

Topics: Categories and Subject Descriptors F.1.1 [Models for Computation, Computability theory, temporal logic, Logic and Constrained programming. General Terms Theory, Algorithms Keywords Temporal reasoning, temporal information extraction, time in natural
Year: 2011
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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