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.
Weblogs are an important source of information that requires automatic techniques to categorize them into “topic-based” content, to facilitate their future browsing and retrieval. In this paper we propose and illustrate the effectiveness of a new tf. idf measure. The proposed Conf.idf, Catf.idf measures are solely based on the mapping of terms-to-concepts-to-categories (TCONCAT) method that utilizes...
Internet has brought about the problem of "information overload". How to liberate the journalists from the heavy network news filtering works is a significant challenge. In this paper a new information filtering method based on S-K (social learning and knowledge base) model is brought forward through the research of the existing information filtering technology. This approach can lead the...
Voice of customer (VOC) is a key driving force for product development, as well as a fundamental base of marketing decision-making. The traditional approaches for VOC analysis using face-to-face customer interviews often result in high cost and long lead-time. Thus it is no longer suitable for dynamic response to changing market conditions. With fast growth and application of internet technology,...
Digital Earth (DE) is a virtual presentation of the planet based on geographic coordinate, and is an information system with tremendous amount of multiple resolutions and multiple scales data as shown in multiple dimensions. It can visualize the real earth and represent historical phenomena in digital way by using the large amount of data of the earth, and utilizing the computer techniques, image...
The Web has the potential to become the world's largest knowledge base. In order to unleash this potential, the wealth of information available on the Web needs to be extracted and organized. There is a need for new querying techniques that are simple and yet more expressive than those provided by standard keyword-based search engines. Searching for knowledge rather than Web pages needs to consider...
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.