Entity identification method, apparatus and device, and medium
The invention discloses an entity recognition method and device, equipment and a medium, and relates to the technical field of artificial intelligence. The method comprises the steps of obtaining an input text character sequence; performing character embedding on each character in the text character...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an entity recognition method and device, equipment and a medium, and relates to the technical field of artificial intelligence. The method comprises the steps of obtaining an input text character sequence; performing character embedding on each character in the text character sequence to generate a vector sequence corresponding to the text character sequence; enumerating span units in the vector sequence to determine an entity region and a context region in the text; generating a joint result of semantic features and context features corresponding to each span unit based on a graph convolutional network and a self-attention mechanism; and determining the entity category of the corresponding span unit according to each joint result. Therefore, according to the scheme, in the entity recognition process, all character subsequences in the text are considered as potential entities in an enumeration mode, and overlapped entity information in the text can be recognized; and meanwhile, semanti |
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