Maintaining knowledge about temporal intervals
Communications of the ACM
Temporal summaries of new topics
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
A Framework for Constructing Temporal Models from Texts
Proceedings of the Fifteenth International Florida Artificial Intelligence Research Society Conference
Managing Time in GIS: An Event-Oriented Approach
Proceedings of the International Workshop on Temporal Databases: Recent Advances in Temporal Databases
Two Approaches to Event Definition
DEXA '02 Proceedings of the 13th International Conference on Database and Expert Systems Applications
Real-time event extraction for infectious disease outbreaks
HLT '02 Proceedings of the second international conference on Human Language Technology Research
Ordering events for dynamic geospatial domains
COSIT'05 Proceedings of the 2005 international conference on Spatial Information Theory
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Events described in textual narratives do not always occur in neat, chronological order but occur, for example, during or overlapping each other or as simultaneous events. Summarizations of narratives, however, benefit from a simpler, linear ordering of events. This paper describes an approach for modeling events in text as event intervals and for generating linear orders of event intervals, useful for the summarization of events or as the basis for question answering systems. Linear orders are derived through reducing the set of thirteen possible event interval relations to a set of only before or equal relations. The mapping of event interval relations into before/after sequences requires the support of additional constraints in order to preserve the original semantics of the events presented in the text and to derive plausible orders of events.