Expansion Techniques forCross - Language Information Retrieval
نویسنده
چکیده
Dictionary methods for cross-language information retrieval have shown performance below that for mono-lingual retrieval. Failure to translate multi-term phrases has been shown to be one of the factors responsible for the errors associated with dictionary methods. First, we study the importance of phrasal translation for this approach. Second, we explore the role of phrases in query expansion via local context analysis and local feedback and show how they can be used to signiicantly reduce the error associated with automatic dictionary translation.
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