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We present a novel approach intended to reduce user effort required to retrieve and/or revisit previously discovered information by exploiting web search and navigation history. In our approach, we collect streams of user actions during search and navigation sessions, identify individual user goals and construct and persistently store visual trees representing session history. We provide users with...
Current web is known as a space with constantly growing interactivity among its users. It is changing from the data storage into a social interaction place where people not only search interesting information, but also communicate and collaborate. Obviously, social networks are the most used places for common interaction among people. We present a method for analysis of the strength of relationships...
Many approaches have been developed to simplify user navigation and information search in large information spaces. Annotations, i.e. notes, comments, explanations or other types of remarks bring to these activities new dimension. Annotations enrich the content and also support collaboration. This paper presents a method for annotation learning materials on programming. Learning materials in domain...
Web service chaining forms one of the basic operation during Web service composition. To decide whether services can be chained, semantic matching between the I/O is usually evaluated. In this paper we propose an approach considering possible adaptation of output data before it is consumed as input by other service. We also define the corresponding rules based on which it is evaluated if the chaining...
The process of semantic web service composition arranges several web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes an approach to automatic semantic web service composition. Its advantage is good scalability regarding the complexity of user constraints and pre/post conditions. Based on these conditions it propagates the value...
The process of semantic Web service composition arranges several Web services into one composite service to realize complex workflows with an exploitation of semantics. This paper proposes a framework to automatic semantic Web service composition. Its advantage is that a huge amount of computation is performed during preprocessing and the composition approach is designed to exploit the parallel execution...
Researchers need to explore and study the plethora of challenges that emergent intelligent hypermedia technologies bring to the Adaptive Web. This special session aims to increase the awareness of researchers in this area, providing an in-depth investigation on several research and deployment issues, regarding the impact of intelligent methods on this new form of Web. In addition, this special session...
Characteristics in the user model can be acquired and maintained in several ways, namely by means of implicit or explicit feedback, observation of user's actions, log analysis, etc. We use analysis of the content that is presented to a user. We assume that comparing documents and analyzing their common and different aspects can lead to information about user's interests. We work in the Semantic Web...
In this paper we present a method proposed to select test questions adapting to individual needs of students in the context of Web-based educational system. It functions as a combination of three particular methods. First one is based on course structure and focuses on the selection of the most appropriate topic for learning, second uses the Item Response Theory to select k-best questions with adequate...
The semantic Web services composition process arranges several Web services into one composite to realize complex workflows. To do this, semantic metadata of Web services' description are used. The current approaches based mainly on AI planning are immature to be used in practice. In this paper we propose an approach involving users in the semantic Web services composition to help overcome problems...
Existing multimedia information retrieval systems provide users with insufficient support for efficient searching for and browsing in multimedia content. Several possible solutions were proposed, such as using faceted metadata search or semantic clusters of search results. We describe the possibilities of using enhanced faceted navigation with support for personalization, collaboration and Semantic...
Modern technologies have brought many innovations into the system of education. Learners now have an opportunity to educate with the help of electronic materials often provided by web-based infrastructures. Although the majority of learners - especially children or teenagers - find studying from such materials less exciting than playing today's popular computer games that, however, lack signs of education...
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