NAVIGATION-DEPENDENT WEB VIEWS : ACTIVATING AND COMPLEMENTING WEB LINKS FOR A PERSONALIZED WEB
Hidenari Kiyomitsu · Institutional Repositories DataBase (IRDB) · 1999
In this paper, we propose an idea for changing the view of web-pages and their link structures based on a user's link navigation history and predefined semantic units of web pages. The major objective of the proposed method is the reflection of a web page author's intention about his/her web data and its linking structures. In our navigation-dependent web views, the view of each web page including its hyperlinks is changed according to which navigation path the user took to reach the web page. If the user obeys a navigation path that is intended by the author, the system will provide a necessary and sufficient view of the web page including all the predefined hyperlinks. Otherwise, our mechanism adds information on unvisited pages to the user's view and hides some hyperlinks. In order to realize the proposed navigation-dependent web views, first we will introduce the notions of semantic units and situation-dependent links. Intuitively, a semantic unit is predefined by its author, and it consists of a connected graph of web pages, where each edge denotes a prerequisite relationship between pages as well as a hyperlink. That is, in order to comprehend the content of a semantic unit, users are strongly recommended to enter from a predefined entry page and to navigate predefined links in the specified order. When a user does not navigate the links according to the author's intention, some hyperlinks are automatically hidden so that he may not be able to go to further pages. These types of hyperlink we called situation-dependent link. Next, we will briefly discuss our implementation of the navigation-dependent web views. Finally, we will briefly discuss the formal aspects of the situation-dependent links. We will formalize the syntax and semantics of semantic units of pages. Then, we will define the equivalence relationships between two semantically meaningful paths. The equivalence relationship is useful for finding redundant paths defined by authors.