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Method and device for determining keywords from target text

A technology of target text and keywords, applied in the field of determining keywords, can solve the problems that the accuracy of product names and brand names needs to be improved

Active Publication Date: 2018-10-16
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the accuracy of the existing technology for identifying product names and brand names from texts needs to be improved.

Method used

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  • Method and device for determining keywords from target text
  • Method and device for determining keywords from target text
  • Method and device for determining keywords from target text

Examples

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Embodiment Construction

[0025] Exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0026] This embodiment takes an application in an e-commerce platform as an example to illustrate how to identify which commodities or brands are involved in the text. The commodity here refers to the name of a commodity, such as bicycles, mobile phones, etc., and the brand may include multiple commodities. For example, a brand of an electronic product manufacturer often i...

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Abstract

The invention provides a method and device for determining keywords in a target text. The method and device for determining the keywords in the target text enable terms to be recognized from the text based on semanteme, are applied to the field of e-commerce and are capable of improving the accuracy of recognizing commodity names and brand names from the text. The method comprises the steps that one or more preset keywords are matched in a preset text collection, and each text and each keyword are provided with additional information; a plurality of semantic associated words corresponding to the keywords are extracted from the context in a preset range of the matched keywords, and forward weight values and negative weight values are set for the extracted semantic associated words; the one or more keywords are matched in the target text, the semantic associated words corresponding to the keywords are matched in the context in the preset range of the matched keywords, the sum of all the weight values of the semantic associated words is calculated, and prompting information is output under the condition that the sum is larger than a preset value.

Description

technical field [0001] The invention relates to a method and device for determining keywords from target text. Background technique [0002] In e-commerce platforms, Internet news and social media, it is often necessary to identify which products and brands users pay attention to from text. The recognition technology of commodities and brand names is usually based on string matching or text similarity calculation, or some entity name recognition methods are applied to locate specific commodities and brand names from the text. [0003] The basic steps of an existing commodity and brand name identification method are as follows: [0004] 1. Load the existing commodity and brand name library or entity attribute library; [0005] 2. Do text preprocessing on the target article, including removing irrelevant characters, text segmentation and other operations; [0006] 3. Use the commodity and brand name library or entity attribute library and the segmented fragments to perform ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30G06F17/27G06Q30/02
CPCG06F16/3344G06F40/211G06Q30/0222
Inventor 陈海勇牟川邢志峰
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD