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This paper discusses a need to provide adaptive navigation support for students accessing large numbers of interactive examples in Web-enhanced education. We introduce the system NavEx that is able to provide adaptive annotation of programming examples without any need of manual indexing. NavEx uses innovative algorithms for prerequisite/outcome indexing of learning material and an efficient knowledge-based approach for adaptive annotation.doi:10.1109/icalt.2004.1357682 dblp:conf/icalt/YudelsonBS04 fatcat:lx2m6tjbinbafe2bivtqacqjrm