With the emergence of the web of services and the semantic web, the need to find different methods of web service selection is gaining importance. Many efforts are focusing on the aspects of building the trust networks on the semantic web as well as agent-based models to utilize the trust in selecting the appropriate web service from a group of available services.The main direction of the resea...

This paper provides new ways to explore the old problem of failure of information systems development in an organisation. Based on the theory of cognitive dissonance, information systems (IS) failure is defined as a gap between what the users expect from an information system and how well these expectations are met by the perceived performance of the delivered system. Bridging the expectation-p...

ÐOne of the major problems in the field of knowledge discovery (or data mining) is the interestingness problem. Past research and applications have found that, in practice, it is all too easy to discover a huge number of patterns in a database. Most of these patterns are actually useless or uninteresting to the user. But due to the huge number of patterns, it is difficult for the user to compre...

Mobile phones, with their increasing processing power and memory, are enabling a diversity of tasks. The traditional text entry method using keypad is falling short in numerous ways. Some solutions to this problem include: QWERTY keypads on phone, external keypads, virtual keypads on table tops (Seimens at CeBIT ‘05) and last but not the least, automatic speech recognition (ASR) technology. Spe...

People often use software for mundane tasks and expect it to be dependable enough for their needs. Unfortunately, the incomplete and imprecise specifications of such everyday software inhibit many dependability enhancement techniques because these require a model of proper behavior for failure detection. We offer a user-centered approach for creating a model of proper behavior. This approach is...

This paper presents a new approach to parse multiple data types in Dialogue Systems. In its initial version, our spoken dialogue systems platform had a single and generic parser. However, when developing two new systems, the parser’s complexity increased and data types, like numbers, dates and free text messages, were not correctly interpreted. The solution we present to cope with these problem...

This paper provides new ways to explore the old problem of failure of information systems development in an organisation. Based on the theory of cognitive dissonance, information systems (IS) failure is defined as a gap between what the users expect from an information system and how well these expectations are met by the perceived performance of the delivered system. Bridging the expectation-p...

Multimedia services like television programs and live streaming of mobile videos can be delivered to mobile terminals via different access technologies. The question is – how do users perceive such services on mobile terminals? The objective of this study is to find the correlation between video quality thresholds and the user context. Our study reveals the thresholds of user’s quality of exper...