elasticsearch禁用词频计分
我想在elasticsearch中更改评分系统，以摆脱对一个术语的多次出现计数的麻烦。例如，我想要：
“德克萨斯州德克萨斯州”
和
“得克萨斯州”
得分相同。我发现elasticsearch表示该映射将禁用词频统计，但是我的搜索结果却不一样：
"mappings":{"business": {
"properties" : {
"name" : {
"type" : "string",
"index_options" : "docs",
"norms" : { "enabled": false}}
}
}
}
}
任何帮助将不胜感激，我无法找到很多有关此的信息。
编辑：
我正在添加搜索代码，并在使用解释时返回了什么。
我的搜索代码：
Settings settings = ImmutableSettings.settingsBuilder().put("cluster.name", "escluster").build(); Client client = new TransportClient(settings)
.addTransportAddress(new InetSocketTransportAddress("127.0.0.1", 9300));
SearchRequest request = Requests.searchRequest("businesses")
.source(SearchSourceBuilder.searchSource().query(QueryBuilders.boolQuery()
.should(QueryBuilders.matchQuery("name", "Texas")
.minimumShouldMatch("1")))).searchType(SearchType.DFS_QUERY_THEN_FETCH);
ExplainRequest request2 = client.prepareIndex("businesses", "business")
当我搜索解释时，我得到：
"took" : 14, "timed_out" : false,
"_shards" : {
"total" : 3,
"successful" : 3,
"failed" : 0
},
"hits" : {
"total" : 2,
"max_score" : 1.0,
"hits" : [ {
"_shard" : 1,
"_node" : "BTqBPVDET5Kr83r-CYPqfA",
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9U5KBks4zEorv9YI4n",
"_score" : 1.0,
"_source":{
"name" : "texas"
}
,
"_explanation" : {
"value" : 1.0,
"description" : "weight(_all:texas in 0) [PerFieldSimilarity], result of:",
"details" : [ {
"value" : 1.0,
"description" : "fieldWeight in 0, product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(freq=1.0), with freq of:",
"details" : [ {
"value" : 1.0,
"description" : "termFreq=1.0"
} ]
}, {
"value" : 1.0,
"description" : "idf(docFreq=2, maxDocs=3)"
}, {
"value" : 1.0,
"description" : "fieldNorm(doc=0)"
} ]
} ]
}
}, {
"_shard" : 1,
"_node" : "BTqBPVDET5Kr83r-CYPqfA",
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9U5K6Ks4zEorv9YI4o",
"_score" : 0.8660254,
"_source":{
"name" : "texas texas texas"
}
,
"_explanation" : {
"value" : 0.8660254,
"description" : "weight(_all:texas in 0) [PerFieldSimilarity], result of:",
"details" : [ {
"value" : 0.8660254,
"description" : "fieldWeight in 0, product of:",
"details" : [ {
"value" : 1.7320508,
"description" : "tf(freq=3.0), with freq of:",
"details" : [ {
"value" : 3.0,
"description" : "termFreq=3.0"
} ]
}, {
"value" : 1.0,
"description" : "idf(docFreq=2, maxDocs=3)"
}, {
"value" : 0.5,
"description" : "fieldNorm(doc=0)"
} ]
} ]
}
} ]
}
似乎仍在考虑频率和文档频率。有任何想法吗？很抱歉，格式不好，我不知道为什么它看起来如此怪异。
编辑编辑：
我在浏览器中搜索http：// localhost：9200 / businesses / business / _search？pretty =
true＆qname =
texas的代码
是：
{ "took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 3,
"successful" : 3,
"failed" : 0
},
"hits" : {
"total" : 4,
"max_score" : 1.0,
"hits" : [ {
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9YcCKjKvtg8NgyozGK",
"_score" : 1.0,
"_source":{"business" : {
"name" : "texas texas texas texas" }
}
}, {
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9YateBKvtg8Ngyoy-p",
"_score" : 1.0,
"_source":{
"name" : "texas" }
}, {
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9YavVnKvtg8Ngyoy-4",
"_score" : 1.0,
"_source":{
"name" : "texas texas texas" }
}, {
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9Yb7NgKvtg8NgyozFf",
"_score" : 1.0,
"_source":{"business" : {
"name" : "texas texas texas" }
}
} ]
}
}
它找到我在那里的所有4个对象，并且它们的得分都相同。当我运行Java API搜索并进行解释时，我得到：
{ "took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 3,
"successful" : 3,
"failed" : 0
},
"hits" : {
"total" : 2,
"max_score" : 1.287682,
"hits" : [ {
"_shard" : 1,
"_node" : "BTqBPVDET5Kr83r-CYPqfA",
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9YateBKvtg8Ngyoy-p",
"_score" : 1.287682,
"_source":{
"name" : "texas" }
,
"_explanation" : {
"value" : 1.287682,
"description" : "weight(name:texas in 0) [PerFieldSimilarity], result of:",
"details" : [ {
"value" : 1.287682,
"description" : "fieldWeight in 0, product of:",
"details" : [ {
"value" : 1.0,
"description" : "tf(freq=1.0), with freq of:",
"details" : [ {
"value" : 1.0,
"description" : "termFreq=1.0"
} ]
}, {
"value" : 1.287682,
"description" : "idf(docFreq=2, maxDocs=4)"
}, {
"value" : 1.0,
"description" : "fieldNorm(doc=0)"
} ]
} ]
}
}, {
"_shard" : 1,
"_node" : "BTqBPVDET5Kr83r-CYPqfA",
"_index" : "businesses",
"_type" : "business",
"_id" : "AU9YavVnKvtg8Ngyoy-4",
"_score" : 1.1151654,
"_source":{
"name" : "texas texas texas" }
,
"_explanation" : {
"value" : 1.1151654,
"description" : "weight(name:texas in 0) [PerFieldSimilarity], result of:",
"details" : [ {
"value" : 1.1151654,
"description" : "fieldWeight in 0, product of:",
"details" : [ {
"value" : 1.7320508,
"description" : "tf(freq=3.0), with freq of:",
"details" : [ {
"value" : 3.0,
"description" : "termFreq=3.0"
} ]
}, {
"value" : 1.287682,
"description" : "idf(docFreq=2, maxDocs=4)"
}, {
"value" : 0.5,
"description" : "fieldNorm(doc=0)"
} ]
} ]
}
} ]
}
}
回答：
index options在映射中初始设置字段后，似乎无法覆盖该字段的
例：
put testput test/business/_mapping
{
"properties": {
"name": {
"type": "string",
"index_options": "freqs",
"norms": {
"enabled": false
}
}
}
}
put test/business/_mapping
{
"properties": {
"name": {
"type": "string",
"index_options": "docs",
"norms": {
"enabled": false
}
}
}
}
get test/business/_mapping
{
"test": {
"mappings": {
"business": {
"properties": {
"name": {
"type": "string",
"norms": {
"enabled": false
},
"index_options": "freqs"
}
}
}
}
}
}
您将不得不重新创建索引以获取新的映射
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