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Extraction of temporal information from texts in Swedish

Författare:
Publiceringsår: 2006
Språk: Engelska
Sidor: 259-264
Publikation/Tidskrift/Serie: Proceedings of LREC-2006, The fifth international conference on Language Resources and Evaluation
Dokumenttyp: Konferensbidrag

Sammanfattning

This paper describes the implementation and evaluation of a generic component to extract temporal information from texts in Swedish. It proceeds in two steps. The first step extracts time expressions and events, and generates a feature vector for each element it identifies. Using the vectors, the second step determines the
temporal relations, possibly none, between the extracted events and orders them in time.
We used a machine learning approach to find the relations between events. To run the learning algorithm, we collected a corpus of road accident reports from newspapers websites that we manually annotated. It enabled us to train decision trees and to evaluate the performance of the algorithm.

Disputation

Nyckelord

  • Technology and Engineering
  • information extraction
  • semantic analysis
  • temporal relations
  • Natural language processing

Övriga

LREC-2006, The fifth international conference on Language Resources and Evaluation
2006-05-24/2006-05-26
Genoa, Italy
Published
Yes

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