Context-awareness is emerging as an essential component of many user-focused software domains. It is especially integral to pervasive or ambient computing, but can be used to control the behaviour of any system that adapts to the circumstances in which it is used. Like most new software projects, many existing context-aware systems have been constructed using objector component-oriented program...

It is a very important to develop context-aware systems that can handle, at the same time, multiple heterogeneous applications that require different contexts with different levels of abstraction. This paper proposes a framework for such systems. To handle the heterogeneity of the context required by the applications, we introduce a user activity context detection method based on the combinatio...

Context awareness enables smart service discovery and adaptation for mobile and wireless hosts. The contextual data is acquired from sensors present in the smart space, which may be absent. The inherent noisy nature of wireless environments does not guarantee the gathering of correct data. A history module is thus required in conjunction with existing context-aware systems that overcomes these ...

In this paper we present conclusions, drawn from our research on context-aware systems. Based on reviewing the literature, from which we collected definitions of context and context awareness. We provide the basis for a taxonomy of context-aware systems grouped in eight categories. They include technical aspects of these systems as well as some views of privacy and security. Usefulness of taxon...

The paper describes the idea of bringing awareness to nomadic users. Based on a discussion of different context models and approaches to model context, several scenarios for awareness in context-aware systems are presented. We describe the combination of a context aware guidance system and an awareness platform to enable awareness for nomadic users about other users that are either in a similar...

Music preferences are strongly shaped by the cultural and socio-economic background of listener, which is reflected, to a considerable extent, in country-specific music listening profiles. Previous work has already identified several differences popularity distribution artists listened to. In particular, what constitutes “music mainstream” varies between countries. To complement extend these re...

Although the reuse of software entities has matured in recent years, it has not become standard practice yet, since reusing componentbased or service-oriented architectures requires the selection, composition, adaptation and evolution of prefabricated software parts. Recent research approaches have tackled independently the discovery, composition, adaptation or monitoring processes. We present ...

Context-awareness is emerging as an important computing paradigm designed to address the special needs of applications that must accommodate or exploit the highly dynamic environments that occur in the presence of physical or logical mobility. A number of formal models are available for reasoning about concurrency. Models designed to capture the specifics of mobility are fewer but still well re...