Exploring New Languages with HAIRCUT at CLEF 2005 [chapter]

Paul McNamee
2006 Lecture Notes in Computer Science  
JHU/APL has long espoused the use of language-neutral methods for cross-language information retrieval. This year we participated in the ad hoc cross-language track and submitted both monolingual and bilingual runs. We undertook our first investigations in the Bulgarian and Hungarian languages. In our bilingual experiments we used several nontraditional CLEF query languages such as Greek, Hungarian, and Indonesian, in addition to several western European languages. We found that character
more » ... s remain an attractive option for representing documents and queries in these new languages. In our monolingual tests n-grams were more effective than unnormalized words for retrieval in Bulgarian (+30%) and Hungarian (+63%). Our bilingual runs made use of subword translation, statistical translation of character n-grams using aligned corpora, when parallel data were available, and web-based machine translation, when no suitable data could be found.
doi:10.1007/11878773_17 fatcat:ugsqm4uofzbo3kixvk2pswsszy