Projects per year
Abstract
This paper presents two string-based finite-state approaches to modelling the semantics of natural-language calendar expressions: extended regular expressions (XREs) over a timeline string of unique symbols, and a string of hierarchical periods of time constructed by finite-state transducers (FSTs). The approaches cover expressions ranging from plain dates and times of the day to more complex ones, such as "the second Tuesday following Easter". The paper outlines the representations of sample calendar expressions in the two models, presents a possible application in temporal reasoning, and informally compares the models.
Original language | English |
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Title of host publication | Advances in natural language processing |
Number of pages | 8 |
Place of Publication | Berlin |
Publisher | Springer |
Publication date | 2006 |
Pages | 748-755 |
ISBN (Print) | 978-3-540-37334-6, 3-540-37334-9 |
Publication status | Published - 2006 |
MoE publication type | A4 Article in conference proceedings |
Event | International Conference on NLP - Turku, Finland Duration: 23 Aug 2006 → 25 Aug 2006 Conference number: 5 |
Bibliographical note
Springer;3-540-37334-9;
Fields of Science
- 612 Languages and Literature
- language technology
- computational linguistics
- calendar expressions
Projects
- 2 Active
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HFST - Helsinki Finite-State Technology
Linden, K. (Principal Investigator), Koskenniemi, K. (Participant), Yli-Jyrä, A. (Participant), Hulden, M. (Participant), Silfverberg, M. (Participant), Pirinen, T. (Participant), Axelson, E. (Participant), Hardwick, S. (Participant), Niemi, J. (Other) & Hurskainen, A. (Participant)
01/01/2005 → …
Project: Research project
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