Towards a general theory of action and time
Artificial Intelligence
Artificial Intelligence - Special issue on knowledge representation
Temporal reasoning: a constraint-based approach
Temporal reasoning: a constraint-based approach
Temporal logic (vol. 1): mathematical foundations and computational aspects
Temporal logic (vol. 1): mathematical foundations and computational aspects
On the conversion between non-binary constraint satisfaction problems
AAAI '98/IAAI '98 Proceedings of the fifteenth national/tenth conference on Artificial intelligence/Innovative applications of artificial intelligence
An Algorithm that Learns What‘s in a Name
Machine Learning - Special issue on natural language learning
An introduction to support Vector Machines: and other kernel-based learning methods
An introduction to support Vector Machines: and other kernel-based learning methods
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
An Algebraic Representation of Calendars
Annals of Mathematics and Artificial Intelligence
Interpreting Tense, Aspect and Time Adverbials: A Compositional, Unified Approach
ICTL '94 Proceedings of the First International Conference on Temporal Logic
Head-driven statistical models for natural language parsing
Head-driven statistical models for natural language parsing
A maximum-entropy-inspired parser
NAACL 2000 Proceedings of the 1st North American chapter of the Association for Computational Linguistics conference
The Penn Treebank: annotating predicate argument structure
HLT '94 Proceedings of the workshop on Human Language Technology
Journal of Biomedical Informatics
Proceedings of the 9th annual ACM international workshop on Web information and data management
Representing and Combining Calendar Information by Using Finite-State Transducers
Proceedings of the 2009 conference on Finite-State Methods and Natural Language Processing: Post-proceedings of the 7th International Workshop FSMNLP 2008
What's the date?: high accuracy interpretation of weekday names
COLING '08 Proceedings of the 22nd International Conference on Computational Linguistics - Volume 1
Learning sentence-internal temporal relations
Journal of Artificial Intelligence Research
TimeML-compliant text analysis for temporal reasoning
IJCAI'05 Proceedings of the 19th international joint conference on Artificial intelligence
Effective use of TimeBank for TimeML analysis
Proceedings of the 2005 international conference on Annotating, extracting and reasoning about time and events
Explanation knowledge graph construction through causality extraction from texts
Journal of Computer Science and Technology
Annotating and learning event durations in text
Computational Linguistics
Two string-based finite-state models of the semantics of calendar expressions
FinTAL'06 Proceedings of the 5th international conference on Advances in Natural Language Processing
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Automatic extraction and reasoning over temporal properties in natural language discourse has not had wide use in practical systems due to its demand for a rich and compositional, yet inference-friendly, representation of time. Motivated by our study of temporal expressions from the Penn Treebank corpora, we address the problem by proposing a two-level constraint-based framework for processing and reasoning over temporal information in natural language. Within this framework, temporal expressions are viewed as partial assignments to the variables of an underlying calendar constraint system, and multiple expressions together describe a temporal constraint-satisfaction problem (TCSP). To support this framework, we designed a typed formal language for encoding natural language expressions. The language can cope with phenomena such as under-specification and granularity change. The constraint problems can be solved using various constraint propagation and search methods, and the solutions can then be used to answer a wide range of time-related queries.