Elasticsearch插件来分类文档 [英] Elasticsearch plugin to classify documents

问题描述

对我而言，最好的解决方案是将其分类为所有最常见的术语（/概念）以用户可以浏览的标签云显示。

有没有办法实现？任何建议？

谢谢

解决方案

基本思想是使用 条款聚合，每个条款将产生一个桶。

  POST / _search 
 {
aggs：{
genres：{
terms：{field：genre} 
} 
} 
} 
  

您将获得的回复将通过减少期限出现次数排序：

  {
 ... 
 
聚合：{
类型：{
doc_count_error_upper_bound：0，
sum_other_doc_count：0，
buckets：[
 {
key：jazz 
doc_count：10 
}， 
 {
key：rock，
doc_count：5 
}，
 {
key：electronic，
doc_count：2 
}，
] 
} 
} 
} 
  

如果您使用Kibana，可以直接创建一个标签云可视化。

Is there an elasticsearch plugin out there that would allow me to classify the documents that I enter in an index?

The best solution for me would be a classifications of all the most recurrent terms (/ concepts) displayed in a sort of tags cloud that the user can navigate.

Is there a way to achieve this? Any suggestions?

Thanks

解决方案

The basic idea is to use a terms aggregations, which will yield one bucket per term.

POST /_search
{
    "aggs" : {
        "genres" : {
            "terms" : { "field" : "genre" }
        }
    }
}

The response you'll get will be ordered by decreasing amount of term occurrences:

{
    ...

    "aggregations" : {
        "genres" : {
            "doc_count_error_upper_bound": 0, 
            "sum_other_doc_count": 0, 
            "buckets" : [ 
                {
                    "key" : "jazz",
                    "doc_count" : 10
                },
                {
                    "key" : "rock",
                    "doc_count" : 5
                },
                {
                    "key" : "electronic",
                    "doc_count" : 2
                },
            ]
        }
    }
}

If you're using Kibana, you can directly create a tag cloud visualization based on those terms.

这篇关于Elasticsearch插件来分类文档的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！