A Semantic Computing Method for Improved Word Vector Model

Abstract

The invention provides a semantic computing method for improving a word vector model. The method comprises the following steps of S1, preprocessing a corpus; S2, tagging parts of speech and tagging the parts of speech of words obtained through preprocessing of the corpus; S3, initializing vectors and vectoring the words obtained through tagging of the parts of speech and the parts of speech; S4, integrating context vectors and computing and integrating context word vectors and part of speed vectors of the words; S5, establishing a Huffman tree, training a network, optimizing a target function and judging whether an error reaches a threshold value or not; S6, obtaining the vectors and obtaining the word vectors and the part of speed vectors; and S7, applying the vectors and carrying out semantic computing through application of the word vectors and the part of speed vectors. Compared with the prior art, the method has the advantages that a part of speech factor is added to the vectors, an existing Word2vec model is improved, moreover, innovative application is carried out according to the improved model, and a function of carrying out semantic computing through the Word2vec is expanded.

Description

technical field [0001] The invention relates to the field of information science, in particular to a semantic calculation method and system for improving the Word2vec word vector model. Background technique [0002] Handing over natural language to machine learning algorithms requires mathematical processing of the language, and word vectorization is one way. The easiest way to vectorize words is One-hot Representation. This method assigns each word a vector by creating a vocabulary library and sequentially numbering each word in the vocabulary. The vector has only one component, and the others are all 0. This word vector representation has two disadvantages: (1) it is prone to the disaster of dimensionality; (2) it cannot describe the similarity between words well, that is, the semantic gap. In order to overcome this defect, Hinton proposed a distributed representation method (Distributed Representation) in 1986. The basic idea is to map each word into a fixed-length k-di...

AI Technical Summary

Problems solved by technology

This kind of word vector representation has two disadvantages: (1) it is prone to the disaster of dimensionality; (2) it cannot describe the similarity between words well, that is, the semantic gap

[0004] However, Word2vec in the prior art does not fully consider the part-of-speech factor, and the part-of-speech is important information for training word vectors, because the part-of-speech itself covers semantic information and grammatical rules, and the use of part-of-speech information can well combine the order and regularity of words And relations, such as adjectives can be followed by nouns but not adverbs, thus affecting the model's deep understanding of semantics

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