Paper: The Effect Of Translation Quality In MT-Based Cross-Language Information Retrieval

ACL ID P06-1075
Title The Effect Of Translation Quality In MT-Based Cross-Language Information Retrieval
Venue Annual Meeting of the Association of Computational Linguistics
Session Main Conference
Year 2006
Authors

This paper explores the relationship be- tween the translation quality and the re- trieval effectiveness in Machine Transla- tion (MT) based Cross-Language Infor- mation Retrieval (CLIR). To obtain MT systems of different translation quality, we degrade a rule-based MT system by decreasing the size of the rule base and the size of the dictionary. We use the de- graded MT systems to translate queries and submit the translated queries of vary- ing quality to the IR system. Retrieval ef- fectiveness is found to correlate highly with the translation quality of the queries. We further analyze the factors that affect the retrieval effectiveness. Title queries are found to be preferred in MT-based CLIR. In addition, dictionary-based deg- radation is shown to have stronger impact than rule-based d...