Solution method for determining context range of key word

A keyword and context technology, applied in the field of solving to determine the context range of keywords

Inactive Publication Date: 2017-05-03
SICHUAN YONGLIAN INFORMATION TECH CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

The context of words is the resource and basis for acquiring natural language knowledge in corpus linguistics and solving various practical application problems in natural language processing. In specific application problems, the accuracy of the final result limits the insufficiency of the effective range of the context, and the present invention provides a solution method for determining the context range of keywords

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  • Solution method for determining context range of key word
  • Solution method for determining context range of key word
  • Solution method for determining context range of key word

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Embodiment Construction

[0018] Aiming at the deficiency of defining the effective scope of the context only by subjective experience or by the correct rate of the final result in a specific application problem, combined with figure 1 The present invention has been described in detail, and its specific implementation steps are as follows:

[0019] Step 1: Initialize the statistical method module, i.e. corpus or text.

[0020] Step 2: Input the keyword C into the initial statistical method module or text.

[0021] Step 3: Solve the weight contribution value of each position in the context book adjacent to keyword C respectively

[0022] weight(C,C ij∈(1，2，…2n) ), the specific calculation process is as follows:

[0023] 3.1) First assume the location information of the keyword C context

[0024] On the basis of a corpus of a certain scale, keywords of a certain scale and coverage are selected, and the context words of each keyword C context are extracted from the corpus to form its "keyword context ...

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Abstract

A solution method for determining a context range of a key word comprises the steps of initializing a statistical method module; performing normalization curve processing by solving a weight contribution value of each position in a context adjacent to an input key work C; and finally, calculating n values of a left window and a right window of a context window in a key word C context. By the solution method, very valuable quantitative description is provided for determination of an effective range of the context, and the defect of previous subjective description is overcome; the position of description capability of the context to the key word is gradually reduced from the near to the distant, and the solution method conforms to ordinary knowledge of people; and an extremely valuable theoretical basis is provided for solving word and sentence similarity calculation better.

Description

technical field [0001] The invention relates to the technical field of semantic network, in particular to a solution method for determining the context range of keywords. Background technique [0002] Since entering the 21st century, the global Internet industry has entered a new period of rapid development, and various new technologies have emerged continuously. Natural language processing, an important technology connecting computers and people, has also made great progress. The calculation methods of semantic similarity of words at home and abroad can be roughly divided into two categories: first, the calculation method of semantic similarity of words based on semantic dictionary, this method is simple, effective and easy to understand, but it relies on a relatively complete A large-scale semantic dictionary organized by structural hierarchy; second, a corpus-based word semantic similarity calculation method, which uses a large-scale corpus and uses the context informati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27G06F17/30
CPCG06F16/3344G06F40/30
Inventor 金平艳
Owner SICHUAN YONGLIAN INFORMATION TECH CO LTD
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