Paper: Cross-lingual Slot Filling from Comparable Corpora

ACL ID W11-1215
Title Cross-lingual Slot Filling from Comparable Corpora
Venue Building and Using Comparable Corpora
Session
Year 2011
Authors

This paper introduces a new task of crosslingual slot filling which aims to dis- cover attributes for entity queries from crosslingual comparable corpora and then present answers in a desired language. It is a very challenging task which suffers from both information extraction and machine translation errors. In this paper we ana- lyze the types of errors produced by five different baseline approaches, and present a novel supervised rescoring based valida- tion approach to incorporate global evi- dence from very large bilingual compara- ble corpora. Without using any additional labeled data this new approach obtained 38.5% relative improvement in Precision and 86.7% relative improvement in Recall over several state-of-the-art approaches. The ultimate system outperformed mono- lingual s...