Paper: Cross-Lingual Information Extraction System Evaluation

ACL ID C04-1127
Title Cross-Lingual Information Extraction System Evaluation
Venue International Conference on Computational Linguistics
Session Main Conference
Year 2004
Authors

In this paper, we discuss the performance of cross- lingual information extraction systems employing an automatic pattern acquisition module. This mod- ule, which creates extraction patterns starting from a user’s narrative task description, allows rapid cus- tomization to new extraction tasks. We compare two approaches: (1) acquiring patterns in the source lan- guage, performing source language extraction, and then translating the resulting templates to the tar- get language, and (2) translating the texts and per- forming pattern discovery and extraction in the tar- get language. We demonstrate an average of 8-10% more recall using the first approach. We discuss some of the problems with machine translation and their effect on pattern discovery which lead to this difference in performan...