HAYASHI Kentaro
null+****@clear*****
Wed Dec 18 12:42:25 JST 2013
HAYASHI Kentaro 2013-12-18 12:42:25 +0900 (Wed, 18 Dec 2013) New Revision: 05bb5cfe6520ac174380562d9145484e0405dbae https://github.com/mroonga/mroonga/commit/05bb5cfe6520ac174380562d9145484e0405dbae Message: doc: fix too short underline Modified files: doc/source/reference/full_text_search.rst Modified: doc/source/reference/full_text_search.rst (+7 -6) =================================================================== --- doc/source/reference/full_text_search.rst 2013-12-17 19:20:54 +0900 (596a1c4) +++ doc/source/reference/full_text_search.rst 2013-12-18 12:42:25 +0900 (a978b72) @@ -4,7 +4,7 @@ Search and Scoring in Mroonga ============================= Mroonga Scoring in natural language mode ----------------- +---------------------------------------- The search score of Mroonga in natural language mode is a similarity score between query and document. Mroonga's scoring algorithm is as follows: @@ -48,7 +48,8 @@ Now, let us explain how to make the result score "131073". Splitting a query into tokens -^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + The default tokenizer splits up the query "fine today" into two tokens as follows: @@ -56,7 +57,7 @@ The default tokenizer splits up the query "fine today" into two tokens as follow * today Removing not matched tokens -^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^ We have nothing to do in this case because the tokens exist in documents. @@ -64,7 +65,7 @@ We have nothing to do in this case because the tokens exist in documents. * today: include in document id=3,4 Calculating weight per token -^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^ * fine: 116508(= 1048576 / 9) * today: 131072(= 1048576 / 8) @@ -86,7 +87,7 @@ The retrieval result of the above query is as follows: :: [[[2],[["_key","ShortText"],["index","diaries"]],["FINE",9],["TODAY",8]]] Getting the top N weight tokens -^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The formula for the N is "the number of occurrence of token in document / 8 + 1" @@ -100,7 +101,7 @@ The sorted tokens are as follows: N = 1, then we get "today: 131072(= 1048576 / 8)". Summing up the weight per token which exists in a document, and is one of the top N weight tokens -^^^^^^^^^ +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ * today: include in document id=3,4 -------------- next part -------------- HTML����������������������������...Descargar
