Rule and dictionary-based subject recognition method in subway design specifications

A subway design and recognition method technology, applied in computing, special data processing applications, instruments, etc., can solve the problems of unambiguous words and unregistered words recognition, etc., and achieve the effect of reducing the burden and accurate recognition results

Active Publication Date: 2019-07-23
XIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for subject recognition in subway design specifications based on rules and dictionaries, which solves the problem that ambiguous words and unregistered words in subway design specifications cannot be identified by named entity recognition based on dictionaries in the prior art

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  • Rule and dictionary-based subject recognition method in subway design specifications
  • Rule and dictionary-based subject recognition method in subway design specifications
  • Rule and dictionary-based subject recognition method in subway design specifications

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Embodiment Construction

[0016] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to figure 1 , the subject recognition method in the subway design specification based on rules and dictionaries in the present invention, first store the nouns in the building specification into the hash dictionary, and then perform forward maximum matching and reverse maximum matching algorithms on the subway design specification simultaneously according to the constructed dictionary Processing, get two result sets, and then process the result set according to the custom rule set, and finally output the entity words in the subway design specification, specifically follow the steps below:

[0018] Step 1, using the dictionary file to construct a noun hash dictionary index;

[0019] The dictionary file is obtained from the IFC entity class, and the hash_map data structure is used to construct the noun hash dictionary index.

[0...

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Abstract

The invention discloses a rule and dictionary-based subject recognition method in subway design specifications. The method comprises the following steps: 1) constructing a noun hash dictionary index by utilizing a dictionary file; 2) taking a to-be-processed subway design specification text as an input text S1; 3) processing the input text S1, removing Chinese and English punctuation marks, and generating a sentence set S1 '; 4) performing reverse maximum matching algorithm processing on the sentence set S1'to generate a first result set S2; 5) carrying out forward maximum matching algorithm processing on the sentence set S1'to generate a second result set S3, 6) respectively carrying out rule set matching on the first result set S2 and the second result set S3 to generate a final result set S4 of nouns in subway design specifications, and outputting the final result set S4. The method disclosed by the invention has the advantages of high accuracy and convenience in application.

Description

technical field [0001] The invention belongs to the technical field of computer natural language processing, and relates to a subject recognition method in subway design specifications based on rules and dictionaries. Background technique [0002] With the rise of big data, the key to big data analysis is how to use it properly and rationally in the face of massive data information. The knowledge map can represent structured and semi-structured data in the form of a graph, thereby simplifying knowledge and facilitating further processing and utilization of data. Since Google proposed the concept of "knowledge map" in 2012, knowledge map was first applied in the field of search, and in recent years, knowledge map has begun to develop into the field of industry knowledge map. [0003] Currently, the informatization construction of the construction industry is still in its infancy. In the traditional construction industry, drawing review is mostly in expert mode and manual ope...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27
CPCG06F40/247G06F40/295G06F40/284
Inventor 黑新宏陈毅朱磊赵钦杨明松方潇颖王一川姬文江
Owner XIAN UNIV OF TECH
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