The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Web page classification is the automated assigning of predefined subject category to the document. Automatic Web page classification is one of the most essential techniques for Web mining given that the Web is a huge repository of various information including images, videos etc. And there is a need for categorization Web pages to satisfy user needs. The classification of Web pages into each category...
Automatic document classification has been subject to research since the early 1960s. However, additional research is still required and possible because the results obtained until now remain subject to further enhancement and refinement. Although a lot of literature has been written on the subject, very little research was reported on the automatic classification of Arabic documents none of which...
The massive heterogeneous Web information resources flood on the Internet, and the Web pages classified have no relation with each other. In this paper, the topic knowledge repository is built to find the semantic relation between Web pages, and the similar relation and the associated relation are defined to describe the semantic relation, which helps to provide knowledge service for user and other...
Due to the constantly updated characteristic of data in Web, this paper studies the decision tree technology and how to use in the field of Web information extraction. According to the datasets by information extraction, a decision tree of agricultural products market is constructed by C4.5/C5.0 algorithm, with constantly updated data to update the decision tree, and then generate the understandable...
Online advertising has now turned to be one of the major revenue sources for today's Internet companies. Among the different channels of advertising, contextual advertising takes the great part. There are already lots of studies done for the keyword extraction problem in contextual advertising for English, however, little has been conducted for Chinese, which is mainly different from English linguistically...
Nowadays is necessary to take decisions based in the knowledge obtained through advanced techniques of date analysis, decision tree is an interesting option. In this work a Rich Internet application to visualize a decision tree in a mobile device is presented. This application lets deploy the complete tree decision and the categorization of new registers, with this tool is possible to take decisions...
The Web has been rapidly deepened with myriad searchable databases online, where data are hidden behind query interfaces. However, users often have difficulties in finding the right sources and then querying over them in myriad useful databases online. For solving this problem, this paper presents a new method by importing focused crawling technology to automatically accomplish deep web sources discovery...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.