Method and system for constructing electric power knowledge base
A construction method and knowledge base technology, applied in text database query, electronic digital data processing, character and pattern recognition, etc., can solve the problem that unstructured data cannot be effectively used, occupies a large proportion, a large number of manual intervention and correction, etc. problems, to achieve the effect of reducing labor costs, enriching knowledge, and lowering the threshold
Active Publication Date: 2021-08-27
INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER
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Problems solved by technology
At present, structured data still occupies a large proportion in the construction of knowledge base, and unstructured data cannot be effectively used. At the same time, the knowledge base is generally modeled by experts in a top-down manner, and knowledge extraction from it requires a lot of knowledge. , long-term manual intervention and correction
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[0031] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0032] Such as figure 1 As shown, a power knowledge base construction method includes the following steps:
[0033] Step 1, preprocessing the corpus to obtain the corpus text.
[0034] The specific process is as follows:
[0035] S1) Perform code conversion on the corpus; here the main purpose is to uniformly convert the expected data into utf-8 code.
[0036] S2) Convert the converted corpus from traditional to simplified.
[0037] S3) In response to the fact that the converted corpus is structured data, the converted corpus is corpus text, and the corpus text is structured corpus text; in response to the converted corpus is unstructured data, the traditional The simplified converted corpu...
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The invention discloses a method for constructing a power knowledge base, which includes preprocessing the corpus to obtain the corpus text; in response to the fact that the corpus text is an unstructured text, inputting the corpus text into a pre-trained named entity recognition model, and naming the corpus text The entity is identified; the corpus text after the named entity recognition is input into the pre-trained named entity relationship extraction model to obtain the named entity relationship data; the named entity relationship data is stored to build a power knowledge base. At the same time, the corresponding system is disclosed. The present invention adds unstructured data, and the knowledge base constructed is richer. At the same time, the present invention extracts named entity relation data through the named entity recognition model and named entity relation extraction model, and the knowledge base construction does not require top-down modeling. It lowers the threshold of construction, greatly reduces labor costs, and does not require a large number of long-term manual intervention and correction.
Description
technical field [0001] The invention relates to a method and system for constructing an electric power knowledge base, belonging to the field of knowledge base construction. Background technique [0002] Domain knowledge base is also called industry knowledge base or vertical knowledge base. Electric power knowledge base is constructed based on electric power data, but the construction technology of electric power knowledge base is not yet mature. At present, structured data still occupies a relatively large proportion in the construction of knowledge bases, and unstructured data cannot be effectively used. At the same time, the knowledge base is generally modeled by experts in a top-down manner, and a large amount of knowledge is required to extract knowledge from it. , Long-term manual intervention and correction. Contents of the invention [0003] The invention provides a method and system for constructing a power knowledge base, which solves the problems disclosed in ...
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IPC IPC(8): G06F16/33G06F40/151G06F40/289G06F40/295G06K9/62
CPCG06F40/295G06F40/289G06F40/151G06F16/3344G06F18/214
Inventor 田然苏杨庞渊源陈轩顾彬王磊吴子辰李霁轩陈鑫朱晓鸿王鑫于广荣
Owner INFORMATION & COMM BRANCH OF STATE GRID JIANGSU ELECTRIC POWER