我正在尝试创建一个分析器,该分析器将删除(或替换为空白/空白)文档中带引号的句子。

如:this is my \"test document\"
例如,我希望术语“ vector ”为:[this, is, my]

最佳答案

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

索引设置如下,使用模式替换字符。

{
    "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analyze API生成以下 token :

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

以上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
        }
    ]
}

关于elasticsearch - Elasticsearch Analyzer删除引用的句子,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/60479170/

10-11 08:37