The importance of a Web page is an inherently subjective matter, which depends on the readers interests, knowledge and attitudes. But there is still much that can be said objectively about the relative importance of Web pages. This paper describes PageRank, a method for rating Web pages objectively and mechanically, effectively measuring the human interest and attention devoted to them. We compare PageRank to an idealized random Web surfer. We show how to efficiently compute PageRank for large numbers of pages. And, we show how to apply PageRank to search and to user navigation.

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: World Wide Web traffic increases at impressive rates reaching up to a several million hits (requests/clients) per day for busy Web servers. To serve all these clients effectively, it is necessary to have a good knowledge of their geographic distribution and access patterns. Understanding the geographic distribution of an organization's Web clients is essential in making important decisions that will reach the client base more effectively. For example, replication, caching, and advertisement have been widely used to improve information dissemination. However, these methods will be productive, only if made at strategic places on the Web, places that are close to the client base. In this paper we present the design and implementation of Palantir: a tool that animates world wide web traffic. The tool displays the origin and magnitude of a Web server's hits either in real-time or in batch mode. It can synthesize the traffic to several Web server's so as to get a global view of the hits i...

The increased use and growing popularity of Personal Digital Assistants (PDAs) means users now have access to information on a variety of platforms. As people move or migrate between devices, from their desktops, to their laptops and to their PDAs, there is a need to maintain the integrity and context of information designed for the large screen when displayed on the small screen. Four common approaches to migration are outlined: direct migration, data modification, data suppression and data overview. For each approach, the potential impact on subsequent navigation of a web page is examined with different data types performing both simple tasks of browsing and reading and complex tasks of comparison using small screen devices. Based on this analysis, a chart compares navigation for different migration techniques and web tasks. The chart can be used to guide the migration of information from the large screen to the small screen and optimize navigation for specific tasks.

The growing World-Wide Web requires scientific research to strengthen and extend design guidelines. Exploratory research was undertaken to investigate the relationship between (1) site size and structure and (2) user navigation and perception. Experimental results showed that strongly hierarchical sites are more usable; site size has little effect on user navigation and mental models; nodes high in the hierarchy tend to be more memorable; and strongly hierarchical sites are perceived as smaller than weakly hierarchical sites, other factors being equal. Results also showed that structural landmarks tend to be poor predictors of behavioral landmarks. KEYWORDS World-Wide Web, navigation, information structure, Web site design, landmarks INTRODUCTION The World-Wide Web is transforming business and personal information access, manipulation, and communication, by capitalizing on synergies between network, graphics, and multimedia technologies. The Web, the world's largest hypertext, is o...

The importance of a Web page is an inherently subjective matter, which depends on the readers interests, knowledge and attitudes. But there is still much that can be said objectively about the relative importance of Web pages. This paper describes PageRank, a method for rating Web pages objectively and mechanically, effectively measuring the human interest and attention devoted to them. We compare PageRank to an idealized random Web surfer. We show how to efficiently compute PageRank for large numbers of pages. And, we show how to apply PageRank to search and to user navigation.