Method for designing focused crawler

A technology focusing on crawlers and design methods, applied in computing, special data processing applications, instruments, etc., can solve problems such as discarding correlation, and achieve the effect of improving processing efficiency, enriching quantity, and improving effectiveness

Inactive Publication Date: 2013-02-13
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Through the above analysis of related focused crawlers, it is found that there are still many areas worthy of research in the existing web crawlers. For example, traditional focused crawlers often crawl for pre-s

Method used

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  • Method for designing focused crawler
  • Method for designing focused crawler
  • Method for designing focused crawler

Examples

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Embodiment Construction

[0020] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.

[0021] figure 1 It is a flow chart of an embodiment of the design method of the focused crawler of the present invention.

[0022] In this example, if figure 1 As shown, the focus crawler design method of the present invention comprises the following steps:

[0023] ST1. Configure the description information of the domain ontology and use it as a template for focusing on crawlers. These description information include: search keywords, filter keywords, and crawl keywords, which are respectively used as three-level information of crawler templates.

[0024] In this implem...

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Abstract

The invention discloses a method for designing a focused crawler. According to the method, domain-specific local domain webpage URL (Uniform Resource Locator) sources instead of few specific websites are searched through a search engine to enrich the URL sources; a seed URL is selected for performing source crawling by adopting a certain possibility according to the domain correlation degree of the URL sources, i.e., the URL sources with weak domain correlation are not processed with a certain possibility, the processing efficiency of the URL sources is improved so that source crawling is faster; and finally the weight analysis of a webpage label is utilized to obtain targeted information to be crawled, and the information effectiveness is improved.

Description

technical field [0001] The invention belongs to the technical field of network information processing, and in particular relates to a design method for focusing crawlers. Background technique [0002] With the rapid development of the Internet, the Internet has become the carrier of a large amount of information, and the information in it has shown explosive growth. These massive Internet information resources contain huge potential value. How to effectively and quickly extract and use these information has become a huge problem. Therefore, various web crawler technologies have emerged, such as traditional general web crawlers, topic web crawlers, incremental web crawlers, and deep web crawlers. [0003] A web crawler is an automatic web page crawling program that can crawl (crawl) relevant and useful web page resources from the Internet. [0004] Traditional web crawlers start from one or several initial URLs, crawl webpage source code information and extract new URLs from...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 陈端兵高辉傅彦张博
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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