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Time word extraction method and device

A time and time relationship technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of complex interval time word extraction rules, large amount of rule construction, inconvenient adjustment and modification, etc.

Active Publication Date: 2019-04-19
安徽省泰岳祥升软件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above technical problems, this application proposes a method for extracting time words to solve the problems that the interval time word extraction rules are complex, inconvenient to adjust and modify later, and the amount of rule construction is too large

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  • Time word extraction method and device

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Embodiment Construction

[0047] The embodiments of the present application are described in detail below.

[0048] Please refer to figure 1 , in the first specific implementation manner of the present application, a time word extraction method is provided, including the following steps from S100 to S500.

[0049] S100: Obtain the text of the time words to be extracted.

[0050] S200: Extract at least one first character string matching a first regularity from the text, where the first regularity is a rule for identifying date / time / date moment.

[0051] In the step of S200, in "date / time / date time", " / " represents an or relationship. In general, a date, datetime or time instant may consist of one or more fields characterizing a time. For example, "8 o'clock on January 1 last year" is a time node in the form of date and time, where "last year" is a field representing a year, "January" is a field representing a month, and "day" is a field representing a day , "eight o'clock" is the field representing...

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Abstract

The embodiment of the invention discloses a time word extraction method and device. The method comprises the steps of acquiring a text of a time word to be extracted d; extracting At least one first character string matched with the first regular rule from the text, wherein the first regular rule is a rule used for identifying dates / moments / date moments; If the first preset number of characters behind the first character string in the text contain the preset first concept word, marking an initial label for the extracted first character string; Wherein the first conceptual word at least has onesemantic for characterizing from one date / moment / date moment to another date / moment / date moment; If the second preset number of characters before the first character string in the text contain the preset first concept word, marking a termination tag for the extracted first character string; And respectively pairing the extracted first character string marked with the initial label with the firstcharacter string marked with the termination label to generate an interval time word. The method is simple in extraction rule and accurate in extraction.

Description

[0001] This application claims the priority of a Chinese patent application filed with the China Patent Office on June 8, 2018, with application number 201810584615.1, and the title of the invention is "Method and Device for Extracting Time Words", the entire contents of which are incorporated in this application by reference . technical field [0002] The invention relates to the technical field of information extraction and processing, in particular to a time word extraction method. In addition, the invention also relates to a time word extraction device. Background technique [0003] Information extraction refers to the technology of extracting information points from natural language text, which aims to provide people with better information acquisition tools to deal with the serious challenges brought about by the information explosion. Temporal information is an important part of natural language and an indispensable element for a complete understanding of natural lan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/27
CPCG06F40/284G06F40/30
Inventor 杨凯程张青程剑华蒋宏飞
Owner 安徽省泰岳祥升软件有限公司