DESIGN AND IMPLEMENTATION OF A TOOL FOR THE AUTOMATIC CONSTRUCTION OFHYPERTEXTS FOR INFORMATION-RETRIEVAL

The paper describes the design and implementation of TACHIR, a tool fo r the automatic construction of hypertexts for Information Retrieval. Through the use of an authoring methodology employing a set of well kn own Information Retrieval techniques, TACHIR automatically builds up a hypertext from a document collection. The structure of the hypertext reflects a three level conceptual model that has proved to be quite ef fective for Information Retrieval. Using this model it is possible to navigate among documents, index terms, and concepts using automaticall y determined links. The hypertext is implemented using the HTML hypert ext mark up language, the mark up language of the World Wide Web proje ct. It can be distributed on different sites and different machines ov er the Internet, and it can be navigated using any of the interfaces d eveloped in the framework World Wide Web project, for example NETSCAPE . Copyright (C) 1996 Elsevier Science Ltd