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Method and apparatus for extracting webpage information

A technology of web page information and extraction method, which is applied in website content management, network data retrieval, special data processing applications, etc.

Active Publication Date: 2017-03-29
RUN TECH CO LTD BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In practice, in order to pursue profits, website operators usually insert a large number of advertisements in various forms into the text of web pages. The existing web page information extraction methods achieve the purpose of extracting web page information by establishing an extraction model. These methods are aimed at specific web pages. Only samples can be used to extract webpage information, which makes the extraction of webpage information poor in versatility

Method used

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  • Method and apparatus for extracting webpage information
  • Method and apparatus for extracting webpage information
  • Method and apparatus for extracting webpage information

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0050] figure 1 It is a flow chart of a method for extracting webpage information provided by Embodiment 1 of the present invention. This embodiment is applicable to an application scenario of extracting webpage text information in the Internet, and the method can be executed by a server. Such as figure 1 As mentioned above, the method for extracting web page information specifically includes the following steps:

[0051] In step S110, the target tag is preprocessed according to the processing rule corresponding to the category of the target tag to obtain a preprocessed document.

[0052] Wherein, target tag can be hypertext markup language (Hyper Text Markup Language, HTML) label, and HTML is an application under the standard universal markup language, and hypertext refers to that non-text such as picture, link, program or music can be included in the page. Content, the structure of HTML may include a "head" part and a "body" part, wherein the head part provides information...

Embodiment 2

[0060] figure 2 A flow chart of a method for extracting webpage information provided by Embodiment 2 of the present invention is based on the above embodiments, as shown in figure 2 As shown, step S110 includes:

[0061] Step S111, if the category of the target tag is an external tag, delete the external tag and the content contained in the external tag.

[0062] Among them, the external label can be a label used outside the body, mainly can be, and Wait. In this application scenario, the method of deleting the external tag and the content contained in the external tag can be, for example, in an HTML webpage, a certain external tag and the contained content are " 文本A ", when preprocessing the web page, you need to put" 文本A "Delete all.

[0063] Step S112, if the category of the target tag is a content modification tag, delete the content modification tag, and retain the content contained in the content modification tag.

[0064] Among them, the conte...

Embodiment 3

[0069] image 3 A flow chart of a method for extracting web page information provided by Embodiment 3 of the present invention is based on the above embodiments, as shown in image 3 As shown, step S120 includes:

[0070] Step S121, truncate the preprocessed document according to preset tag symbols to obtain multiple text segments.

[0071] In step S122, the multiple text segments are respectively stored in multiple data units of a preset data structure, the preset data structure is an array structure or a linked list structure, and the text segments correspond to the data units one by one.

[0072] Among them, an array can be a collection of elements of the same data type arranged in a certain order. In programming, for the convenience of processing, it is a form of organizing several variables of the same type in an orderly form. The linked list can be a non-sequential and non-sequential storage structure on the physical storage unit, and the logical order of the...

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Abstract

The embodiment of the invention discloses a method and an apparatus for extracting webpage information. The method for extracting the webpage information comprises the following steps: performing preprocessing on a target label according to a processing rule corresponding to the category of the target label to obtain a preprocessing document; truncating the preprocessing document according to a preset label symbol; and determining webpage text contents according to the truncated preprocessing document. In the prior art, a target webpage needs to be trained to obtain an extraction model of the target webpage, therefore the extraction universality of the webpage information is poor. According to the method disclosed by the embodiment of the invention, the preprocessing is performed on the target label according to the processing rule corresponding to the category of the target label, as no training needs to be performed on a certain webpage sample to establish the extraction model, no training is performed, and thus the extraction cost is reduced. In addition, as the label has universality in HTML documents, the extraction universality of the webpage information can be improved.

Description

technical field [0001] Embodiments of the present invention relate to Internet information processing technologies, and in particular to a method and device for extracting web page information. Background technique [0002] The Internet has become the largest information source in the world. The Internet contains a large amount of valuable information. How to quickly and accurately obtain information that users or applications are interested in from Internet pages, that is, Internet information extraction technology, has been extensively studied by relevant researchers. focus on. [0003] In practice, in order to pursue profits, website operators usually insert a large number of advertisements in various forms into the text of web pages. The existing web page information extraction methods achieve the purpose of extracting web page information by establishing an extraction model. These methods are aimed at specific web pages. Only samples can be used to extract webpage info...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/986
Inventor 王江
Owner RUN TECH CO LTD BEIJING
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