آر.دي.اف. : الگويي براي توصيف منابع در وب معنايي

R.D.F.: A model for resource description in semantic web

One of the problems search engines have always faced with is matching the search query word-by-word with available documents in the search engine database. This leads to retrieving a large number of irrelevant documents and not retrieving all relevant documents. As a response to this weakness, the concept of "semantic web" has appeared which not only matches the terms but also searches according to: topicality, relationships among data, type of data, and other qualities. This article presents a description of semantic web followed by reference to its function with special emphasis on the "ontologies" which are the main components of semantic web ap- 3 plied for both meaning and concept matching. Then some issues are examined in the format of response and request which arise in semantic web. In addition Resource j}ʹ Description Framework (R.D.F), one of the components of semantic web, is discussed .It aims to establish a mechanism for the description of internet documents and resources