The web has become a major source of information to learn about a topic. With the continuous growth of information and its high connectivity, it is hard to follow only the links that are relevant and not to get lost in hyperspace. Our aim is to support people who read documents in a highly connected information space, helping them remain on focus. Our contextually-aware inbrowser text summarisa...

Information seekers often need to perceive the organization of the document content to find the destination in the information space. Much of this task involves navigating the information space. This article primarily delineates essential premises concerning navigation in information space. The paper also discusses how cognitive abilities, particularly spatial ability, affects user’s navigation...

A pervasive criticism of hypertext systems is that users tend to lose their way. Although much work has been done to address this "lost in hyperspace" problem, it still remains unresolved, even accepted as an inevtaible feature. But using the "lost in hyperspace" problem as an example of usability problems, we argue usabilityproblems are not user problems. Once viewed like this, more appropriat...

Being disorientated or lost is one of the fundamental dif®culties which users experience when trying to navigate within hypertext systems. In this paper, two new metrics of lostness are described and applied. The new metrics focus on the effects of link-type and the accuracy of user's mental models of system structure. In a series of studies, the new metrics were compared with the only other pu...