Informatiewetenschap 1997 (Information Science 1997. Scientific Contributions to the 5th Interdisciplinary Conference Information Science).

摘要

The tremendous increase of networked information has led to a new challenge in 'information seeking.' Currently, users everyday confront themselves with large amounts of information in the form of news, e-mail messages, and especially World-Wide Web pages. Although users of this electronic information have access to a rich body of information, only a small fraction of this is actually relevant to the interest of any particular user. In order to reduce the effort of a user determining which information is relevant to his needs, an automatic solution seems indispensable. Assuming specific long-term interests of a user, and taking into account that the dynamic and unstructured information sources have a high modification rate, this information filtering problem differs from the classical information retrieval problem. However, many of the techniques used for information retrieval can easily apply to filtering and vice versa. Due to the fact that the largest amount of this information consists of text documents, many approaches have been seen in text filtering, which all have in common four basic components: A technique for representing documents; A technique for representing the information need (profile or query); A way of comparing profiles/queries to document representations; and Ways of suing the results of comparison (rendering, presentation, interaction and feedback).