elasticsearch - Elasticsearch analyzer to remove quoted sentences

Question

I'm trying to create an analyzer that would remove (or replace by white/empty space) a quoted sentence within a document.

Such as: this is my \"test document\"

I'd like, for example, the term vector to be: [this, is, my]

标签： elasticsearchelasticsearch-analyzers

Answer 1

Daniel Answer 是正确的，但由于缺少相应的正则表达式和替换，我提供了它，其中包括对您的文本的测试。

使用模式替换字符的索引设置如下。

{
    "settings": {
        "analysis": {
            "analyzer": {
                "my_analyzer": {
                    "tokenizer": "standard",
                    "char_filter": [
                        "my_char_filter"
                    ],
                    "filter": [
                        "lowercase"
                    ]
                }
            },
            "char_filter": {
                "my_char_filter": {
                    "type": "pattern_replace",
                    "pattern": "\"(.*?)\"",
                    "replacement": ""
                }
            }
        }
    }
}

之后使用分析 API生成以下标记：

POST _analyze

{
    "text": "this is my \"test document\"",
    "analyzer" : "my_analyzer"
}

上述 API 的输出：

{
    "tokens": [
        {
            "token": "this",
            "start_offset": 0,
            "end_offset": 4,
            "type": "<ALPHANUM>",
            "position": 0
        },
        {
            "token": "is",
            "start_offset": 5,
            "end_offset": 7,
            "type": "<ALPHANUM>",
            "position": 1
        },
        {
            "token": "my",
            "start_offset": 8,
            "end_offset": 10,
            "type": "<ALPHANUM>",
            "position": 2
        }
    ]
}