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The paper is focused on sentiment analysis in Web 2.0 capable systems. The analysed text needs to be in the Slavic languages and Czech language in particular. We have used our experience from both environment, business one (e-shops) and educational one (adaptive web system XAPOS) and the native knowledge of the Czech language in our approach to analysing(More)
Navigation of a student over learning objects can be solved by using concept space of a domain which contains information about structural and dependency relations between concepts. Every learning object has defined relations to several concepts. Relations which exist in the learning object space also exist in the concept space between the corresponding(More)
This paper presents a proposal of navigation for the user, based on an existing ontology of the domain of the learning course. The navigation scheme of the course stands on interconnection of an ontology with existing learning material by the use of the keywords of the domain. On one side there is the user's needs and goals and on the other side are(More)
The adaptive hypermedia system AHA! was used as a tool to increase the quality of education, to ensure the course of programming in C++ and for testing of students. We incorporated into the evaluation tests the idea of negative points per incorrect answer, which is described. Knowledge of basics, rules and semantics of the language, and also training of(More)
Nowadays course navigation is mostly based on sequence order of pages prepared by the author of the course. Ontology based course navigation, where to every element of ontology some learning material is associated allows to effective navigation to desired information. Article is describing usage of keywords, which are searched in the learning material and(More)
Models of behavior mining from logs in adaptive systems are one from many methods how to obtain useful information for personalized navigation. Target of this paper is to describe modified results of full scan algorithm used to creation recommended links to concepts. For creation recommended links is used technique of traversal patterns. Established weights(More)