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Adaptive Hypertext and Hypermedia (Hardcover, Reprinted from USER MODELING AND USER-ADAPTED INTERACTION, 1998)
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Adaptive Hypertext and Hypermedia (Hardcover, Reprinted from USER MODELING AND USER-ADAPTED INTERACTION, 1998)
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Hypertext/hypermedia systems and user-model-based adaptive systems
in the areas of learning and information retrieval have for a long
time been considered as two mutually exclusive approaches to
information access. Adaptive systems tailor information to the user
and may guide the user in the information space to present the most
relevant material, taking into account a model of the user's goals,
interests and preferences. Hypermedia systems, on the other hand,
are `user neutral': they provide the user with the tools and the
freedom to explore an information space by browsing through a
complex network of information nodes. Adaptive hypertext and
hypermedia systems attempt to bridge the gap between these two
approaches. Adaptation of hypermedia systems to each individual
user is increasingly needed. With the growing size, complexity and
heterogeneity of current hypermedia systems, such as the World Wide
Web, it becomes virtually impossible to impose guidelines on
authors concerning the overall organization of hypermedia
information. The networks therefore become so complex and
unstructured that the existing navigational tools are no longer
powerful enough to provide orientation on where to search for the
needed information. It is also not possible to identify appropriate
pre-defined paths or subnets for users with certain goals and
knowledge backgrounds since the user community of hypermedia
systems is usually quite inhomogeneous. This is particularly true
for Web-based applications which are expected to be used by a much
greater variety of users than any earlier standalone application. A
possible remedy for the negative effects of the traditional
`one-size-fits-all' approach in the development of hypermedia
systems is to equip them with the ability to adapt to the needs of
their individual users. A possible way of achieving adaptivity is
by modeling the users and tailoring the system's interactions to
their goals, tasks and interests. In this sense, the notion of
adaptive hypertext/hypermedia comes naturally to denote a hypertext
or hypermedia system which reflects some features of the user
and/or characteristics of his system usage in a user model, and
utilizes this model in order to adapt various behavioral aspects of
the system to the user. This book is the first comprehensive
publication on adaptive hypertext and hypermedia. It is oriented
towards researchers and practitioners in the fields of hypertext
and hypermedia, information systems, and personalized systems. It
is also an important resource for the numerous developers of
Web-based applications. The design decisions, adaptation methods,
and experience presented in this book are a unique source of ideas
and techniques for developing more usable and more intelligent
Web-based systems suitable for a great variety of users. The
practitioners will find it important that many of the adaptation
techniques presented in this book have proved to be efficient and
are ready to be used in various applications.
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