问题描述
如何使用地名词典或词典作为 CRF ++ 中的功能?
how to use gazetteers or dictionaries as features in CRF++?
详细说明:假设我想对人名进行NER，并且我有一个包含经常见到的人名的地名词典(或词典)，我想将此地名词典用作crf ++的输入，我该怎么做?
To elaborate: suppose I want to do NER on person names, and I am having a gazetteer (or dictionary) containing commonly seen person names, I want to use this gazetteer as an input to crf++, how can I do that?
我正在使用条件随机字段包crf ++来执行命名实体识别任务.我知道如何在crf ++中表示一些常用功能.例如，如果我们要使用大写字母作为特征，则可以在crf的特征模板中添加一个单独的列，以指示单词是否被大写.
I am using the conditional random field package crf++ to perform named entity recognition tasks.I know how to represent some commonly used features in crf++. For example, if we want to use Capitalization as a feature, we can add one separate column in the feature template of crf indicating if a word is capitalized or not.
推荐答案
您可以创建一个新功能，该功能指示令牌是否在字典/凝视器中.只需检查设置的成员资格并将Gazeteer功能设置为1或0.
You could make a new feature that indicates if a token is in the dictionary/gazeteer. Just check for set membership and set the Gazeteer feature to 1 or 0.
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