如果同义词是多词表达而 token 化器是空白,那么有人可以解释一下同义词标记过滤器的工作原理吗?例如。如果我有这个简单的映射
PUT /test_index
{
"settings": {
"index" : {
"analysis" : {
"analyzer" : {
"synonym" : {
"tokenizer" : "whitespace",
"filter" : ["synonym"]
}
},
"filter" : {
"synonym_graph" : {
"type" : "synonym",
"lenient": true,
"synonyms" : ["multi word, bar => baz"]
}
}
}
}
}
}
我不明白如果空格标记生成器将其分解为两个单词 multi和word,则如何评估术语多单词。因此,据我了解,同义词过滤器永远不会将“多字”作为在配置中查找同义词的一个术语。任何帮助表示赞赏。
最佳答案
答案可以在本节中找到
https://www.elastic.co/guide/en/elasticsearch/reference/7.6/token-graphs.html
和这篇博客文章
http://blog.mikemccandless.com/2012/04/lucenes-tokenstreams-are-actually.html
The following token filters can add tokens that span multiple positions but only record a default positionLength of 1:
- synonym
- word_delimiter
This means these filters will produce invalid token graphs for streams containing such tokens.
Avoid using invalid token graphs for search. Invalid graphs can cause unexpected search results.
关于elasticsearch - 如果同义词是多词,Elasticsearch如何使用同义词标记过滤器?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/61467304/