Boost keyword before search

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  • boost the query keyword using IDF
boost keyword in lucene
method Default idf_train idf_train_norm idf_baidu idf_baidu_norm
Accary 0.66228 0.651629 0.57644 0.647869 0.65288
取自“http://index.cslt.org/mediawiki/index.php?title=Boost_keyword_before_search&oldid=12605”