Method and device for recognizing domain named entity

A device for recognizing a domain named entity, characterized by comprising:

• a processor, wherein the processor is configured to execute the following program units stored in a memory;
• a word segmenting unit, used for conducting word segmentation on a text to be recognized;
• a tagging unit, used for tagging each segmented word in the text to be recognized according to a tag set of a domain corresponding to the text to be recognized, wherein the tag set comprises a basic tag set based on domain named entity recognition and a tag set belongs to the corresponding domain, and the basic tag set comprises a location tag of related words which constitute the domain named entity;
• an extracting unit, used for extracting the tagged segmented words according to a domain named entity extraction rule;
• and a word combining unit, used for constituting the domain named entity by the extracted segmented words,
• the location tag comprises incorrect word segmentation;
• and the device further comprises:
• a detecting unit, used for detecting whether there is any word segmentation error tag in the tagged text after the tagging unit tags each segmented word in the text to be recognized according to the tag set of the domain corresponding to the text to be recognized;
• the word segmenting unit is further used for conducting word segmentation error correction on a sentence in which the word segmentation error tag is located to obtain new segmented words when the detecting unit detects the word segmentation error tag;
• the tagging unit is further used for tagging each of the new segmented words according to the tag set till there is no word segmentation error tag in the tagged text.