We have devized a methodology that mines sequential navigation patterns from a website's logs to enable us to identify the most signi cant associative links in the networks. Spreading activation can then be applied to the generated network of weighted hyperlinks enabling the content-dependent, semantic retrieval of nodes in the network. This approach to information retrieval avoids many of the ...

Learners have different knowledge, interests and also goals in any educational process. If all the learners are provided the same content the process will probably not meet expected goals. A personalized approach to a learner increases the efficiency of the learning process. It is based on information about the learner that is subject of change. Several adaptive educational systems exist. Howev...

2 The main abbreviations used in this article in addition to DIS are: IR (Information Retrieval), SA (Spreading Activation), and ARP (Active Recommendation Project). Luis Mateus Rocha and Johan Bollen Los Alamos National Laboratory, MS B256 MS B362 Los Alamos, NM 87545, USA E-Mail: [email protected] or † [email protected], [email protected] WWW: http://www.c3.lanl.gov/~rocha , http://www.c3.lanl.go...