elasticsearch 如何实现短语之间的距离搜索 - V2EX
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CaptainD
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elasticsearch 如何实现短语之间的距离搜索

 
  •   CaptainD 2022-06-23 11:16:59 +08:00 1092 次点击
    这是一个创建于 1255 天前的主题,其中的信息可能已经有所发展或是发生改变。

    要求:短语之间的词距搜索,并将搜索结果高亮显示

    现在的问题是:如果涉及多个短语,那么第二个短语开始就会收到分词影响

    例子:"hello world" #N100 "love you",这个查询会转变为下面的 ES 查询语句

    • 现在的问题,love you 也被分词了,love 和 you 两个词影响了结果
    1. hello world 和 you ,hello world 和 love 都被高亮出来
    2. 结果应该包含 hello world 和 love you ,但是现在结果包含 hello world 和 love ,包含 hello world 和 you 的结果也被检索出来了
    • es 的检索式如下
    { "bool" : { "must" : [ { "bool" : { "must" : [ { "bool" : { "should" : [ { "match_phrase" : { "fileContent" : { "query" : "\"hello world\" \"love you\"", "slop" : 100, "zero_terms_query" : "NONE", "boost" : 2.0 } } }, { "match_phrase" : { "fileContent" : { "query" : "\"love you\" \"hello world\"", "slop" : 100, "zero_terms_query" : "NONE", "boost" : 2.0 } } } ], "adjust_pure_negative" : true, "boost" : 1.0 } } ], "adjust_pure_negative" : true, "boost" : 1.0 } } ], "adjust_pure_negative" : true, "boost" : 1.0 } }
    1 条回复    2022-06-23 11:58:36 +08:00
    Morriaty
        1
    Morriaty  
       2022-06-23 11:58:36 +08:00   1
    1. 涉及到词间距的查询,你应该去研究下 `span_query`
    2. 希望结果包含所有的搜索词,去调 `minmum_should_match`
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