Title :
Cross-lingual English sentence retrieval considering syntactic structures of Japanese queries
Author :
Kuzuhara, Kazuya ; Kato, Yoshihide ; Matsubara, Shigeki
Author_Institution :
Grad. Sch. of Inf. Sci., Nagoya Univ., Nagoya, Japan
Abstract :
This paper proposes a cross-lingual English sentence retrieval system for Japanese queries. The system retrieves English sentences exactly by considering dependency structures in both Japanese and English. It enables the system to reflect the user´s intention. We utilize a constraint on dependency structure of Japanese, i.e, any dependency is directed from left to right. By considering the constraint, our system can eliminate irrelevant sentences from search results. We conducted an experiment to evaluate the system. The results demonstrated that the rate of improvement of retrieval precision reached to 38.0% and the precision of filtering was 95.3%. Thus, we confirmed the effectiveness of our proposed system.
Keywords :
computational linguistics; information filtering; natural language processing; query processing; English sentence filtering; Japanese query; cross-lingual English sentence retrieval; syntactic structure; Bayesian methods; Dictionaries; Filtering; Filters; Globalization; Information science; Information technology; Natural language processing; Writing;
Conference_Titel :
Natural Language Processing, 2009. SNLP '09. Eighth International Symposium on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-4138-9
Electronic_ISBN :
978-1-4244-4139-6
DOI :
10.1109/SNLP.2009.5340934