Knowledge graph construction method based on Internet power policy information

Abstract

The invention provides a knowledge graph construction method based on Internet electric power policy information, which comprises the following steps: S1, collecting electric power domain knowledge on the Internet, carrying out structured storage on electric power data, and constructing an original electric power domain knowledge database; s2, constructing a special dictionary for the electric power field knowledge, performing word segmentation processing on the acquired electric power field knowledge on the internet by using a viterbi algorithm based on dynamic programming, and performing part-of-speech tagging according to the special dictionary for the electric power field knowledge; s3, performing weight discrimination on text words and sentences based on a TextRank algorithm, and extracting text keywords and key sentences; s4, extracting entity information in words and sentences in the text according to the word segmentation part-of-speech, mapping the obtained entity information, the extracted keywords and key sentences to a semantic space, and storing the entity information and the relationship thereof by using a graph database to form a knowledge graph. According to the invention, the policy information acquisition and analysis problem in the electric power professional field can be effectively solved, so that the power grid decision intelligent level is improved.

Description

technical field [0001] The invention belongs to the field of decision-making assistance in the electric power field, and in particular relates to a method for constructing a knowledge map based on Internet electric power policy information. Background technique [0002] With the world's increasing concern for environmental protection and the urgent need for energy management innovation and reform in various countries, the power industry is facing the transformation requirements of energy conservation, environmental protection and informatization, and it is urgent to transform and upgrade the traditional power system. For the power system, the importance of constructing and updating the knowledge graph of power is manifested in the following aspects: on the one hand, the power system generates new knowledge every day, and the efficient execution of power system scheduling and decision-making must be based on the knowledge of these new knowledge On an ongoing basis of learning...

AI Technical Summary

Problems solved by technology

[0003] For similar information processing problems, knowledge graphs perform well in the general field, but for information analysis in the professional field of electric power, commonly used dictionaries cannot accurately distinguish some proper nouns and concepts, which leads to the problem that the word segmentation has been determined Limitations of Entity Relationships

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