正如ramseykhalaf的评论中提到的，带状滤波器会产生长度为“ n”个单词的令牌。

"settings" : { 
   "analysis" : {
       "filter" : {
          "shingle":{
              "type":"shingle",
              "max_shingle_size":5,
              "min_shingle_size":2,
              "output_unigrams":"true"
           },
           "filter_stop":{
              "type":"stop",
              "enable_position_increments":"false"
           }
       },
       "analyzer" : {
           "shingle_analyzer" : {
               "type" : "custom",
               "tokenizer" : "whitespace",
               "filter" : ["standard," "lowercase", "shingle", "filter_stop"]
           }
       }
   }
},
"mappings" : {
   "type" : {
       "properties" : {
           "letters" : {
               "type" : "string",
               "analyzer" : "shingle_analyzer"
           }
       }
   }
}

有关完整详细信息，请参见此博客文章。