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Knowledge graph construction method based on Internet power policy information

A technology of knowledge graph and construction method, applied in the field of decision-making assistance in the electric power field, can solve the problem that the dictionary cannot distinguish proper nouns and concepts more accurately, and achieve the effect of fast data retrieval

Pending Publication Date: 2022-02-25
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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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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  • Knowledge graph construction method based on Internet power policy information
  • Knowledge graph construction method based on Internet power policy information
  • Knowledge graph construction method based on Internet power policy information

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Embodiment Construction

[0045] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0046] Such as figure 1 As shown, the present invention provides a method for building a knowledge map based on Internet power policy information, including the following steps:

[0047] S1. Collect power field knowledge on the Internet, store power data in a structured manner, and build an original power field knowledge database;

[0048] In step S1, considering that the policy information in the electric power field on the Internet comes from different data sources such as news release platforms, corporate official websites, government agency announcements, and industry trends, the corresponding crawler module is used to collect knowledge based on knowledge, which is divided into source addresses , reliability, event title, release time and specific c...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/36G06F16/951G06F40/216G06F40/242G06F40/289G06F40/30G06K9/62G06Q50/06
CPCG06F16/367G06F40/242G06F40/289G06F40/216G06F40/30G06F16/951G06Q50/06G06F18/22
Inventor 王翀查易艺张明明徐青山许梦晗林杉宋玉
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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