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The aim of Web service composition is to arrange multiple services into workflows supplying complex user needs. Due to the huge amount of Web services and the need to supply dynamically varying user goals, it is necessary to perform the composition automatically. The objective of this article is to overview the issues of automatic dynamic Web service(More)
To make learning process more effective, the educational systems deliver content adapted to specific user needs. Adequate personalization requires the domain of learning to be described explicitly in a particular detail, involving relationships between knowledge elements referred to as concepts. Manual creation of necessary annotations is in the case of(More)
In this paper we present an approach to sharing a user model among several adaptive hypermedia applications. Current adaptive hypermedia applications often realize the user model as the internal part of the system without any possibility to share this model with other applications. We introduce a Web service called UMoWS (user model Web service). The Web(More)
Team projects play an important role in the education of engineers. This paper describes a team project module that is part of a postgraduate course in informatics. Its main objective is to give students a hands-on experience with different aspects of working in a team on a problem. We discuss several issues that should be considered in designing such(More)
State-of-the-art learning management systems provide their stake-holders with many features coming from Web 2.0 paradigm, but often ignore the need for personalization and adaptation during the learning. More, learning activities are often fragmented – a student needs to make a decision whether he or she wants to take questions or read explanatory(More)
Personalization of web-based information systems based on specialized user models has become more important in order to preserve the effectiveness of their use as the amount of available content increases. We describe a user mo-deling approach based on automated acquisition of user behaviour and its successive rule-based evaluation and transformation into(More)
The information overloading is one of the biggest problems nowadays. We can see it in various domains, including business, especially in the news. This is more significant in connection to web and news portals, where the quality of the news portal is commonly measured by amount of news added to the site. Then the most renowned news portals add hundreds of(More)
Personalization and adaptivity of the Web as we know of today is often " closed " within a particular web-based system. As a result there are only a few " personalized islands " within the whole Web. Spreading the personalization to the whole Web either via an enhanced proxy server or using an agent residing on a client-side brings a challenge how to(More)
Semantic structures, ranging from ontologies to flat folksonomies, are widely used on the Web despite the fact that their creation in sufficient quality is often a costly task. We propose a new approach for acquiring a lightweight network of related terms via the Little Search Game - a competitive browser game in search query formulation. The format of game(More)