智能开放搜索 OpenSearch字段的相关内容

阿里云文档 2024-09-14

使用BM25计算查询词在指定字段的上的BM25值

简介计算查询词在指定字段的上的BM25值，用于衡量查询词语字段的相似度。BM25的计算公式可以简单的描述如下：其中：tf(i) 表示term在所求字段上出现的次数idf(i) 表示term的逆向文件频率 (inverse document frequency, IDF)f(ngram) = ngra...

问答 2023-08-30 来自：开发者社区

openSearch匹配不了字段

是这样子的，我商品goods表中有个商品名字段叫goods_name（TEXT类型）。我用openSearch行业电商版给goods_name创建“行业－电商通用分析”索引后搜索不出结果。例如：数据表中有goods_name为“SoHealthy安心堂印尼燕窝臻选燕盏条 50g”,我用关键字“SoHealth” 或者“sohealth”, "healthy" 等部分英文词搜索时候搜索不出来

问答 2022-12-15 来自：开发者社区

开放搜索（OpenSearch）高亮字段设置后，该字段返回的内容部分缺失

搜索内容为:禁塑令进一步升级！零售和外卖需要报备塑料袋使用情况 1.设置高亮的截图如下 2.取消高亮设置的截图如下同一篇文章标题是一样的，而设置了高亮后出现了高亮字段的内容少了一部分内容

问答 2020-03-26 来自：开发者社区

OpenSearch开放搜索从RDS导入数据发现有部分字段没数据，是为什么？

问答 2018-11-15 来自：开发者社区

开放搜索opensearch查询结果数据库date格式的字段

使用开放搜索后，数据库返回的字段是date格式，但是opensearch返回给来的json里面所有的date字段都是时间戳，怎么处理？？

问答 2018-09-06 来自：开发者社区

开放搜索字段飘红问题

查询关键字：小米，设置飘红字段为name，搜索结果显示有的飘红，有的不飘红下面是查询条件:

问答 2016-10-21 来自：开发者社区

开放搜索不能返回新添加的字段值

我在开放搜索以前的表上添加了一个新的字段，然后同步数据到开放搜索里面，数据进去了，但是我查询却没有把新字段的值返回给我，老字段都返回值了，求教

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更新时间 2024-08-09 09:17:28

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智能开放搜索OpenSearch

智能开放搜索是阿里巴巴自主研发的一站式智能搜索业务开发平台，通过内置行业查询语义理解、机器学习排序算法等能力，助力开发者快速搭建高性能的智能搜索服务。

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