A context -aware system can adapt its behaviour according to the user’s personal or environmental context. Historically, user models have been used to enable the adaptation and personalisation of services or information delivered to users. However, despite the apparent correlation between the two approaches, the utilisation of user modelling techniques within the domain of context -aware comput...

Self-organization is built upon two main building blocks: adaptive and uncoupled interaction mechanisms and context-awareness. Here we show how the middleware TOTA (Tuples On The Air) supports self-organization by providing effective abstractions for the above two building-blocks. TOTA relies on spatially distributed tuples for both supporting adaptive and uncoupled interactions between agents,...

The question is addressed whether it makes sense to speak of a logic of law. It is shown that what counts as valid inference depends to a large extent on context-dependent choices. This suggests that our question has a simple answer, namely that a logic of law can exist. After noticing that one logic can serve as the background of another, it is explicated that a more subtle answer can be given...

The development and deployment of several wireless and cellular networks mean that users will demand to be always connected as they move around. Mobile nodes will therefore have several interfaces and connections will be seamlessly switched among available networks using vertical handover techniques. Proactive handover mechanisms can be combined with the deployment of a number of location-based...

An alternative to the use of adaptive context-aware devices that takes on the role of the secretary, is to address the original problem, namely that the phone call as such is placed out of context. Creating technology that decides what is important or not, is, at least most of the time, much harder than presenting the proper information to the users and letting them decide. If this burden of de...

Many adaptative context-aware middleware exist and most of them rely on so-called vertical architectures that offer a functional decomposition for contextawareness. This architecture has a weak point: it does not allow the system handling both dynamics of the changing environment and applications. To avoid this, we propose an approach for context-awareness based on a behavioral decomposition, a...

The advances in IPTV technology enable a new user-centric and interactive TV model, in which context-awareness concept is promising in making users’ interaction with the TV dynamic and transparent. In this paper we present several existing contributions that employ context-awareness concept to allow interactive services. Some of these contributions directly focus on TV, while others are propose...

Semantic Desktop systems appear to be a promising infrastructure for context-aware applications that acquire and make use of user context information in order to provide more efficient interaction between the user and the system. In a systematic analysis, we have analyzed existing Semantic Desktop systems based on a collection of requirements and deduced from it architectural implications for f...

Context-awareness is the ability of computing systems to acquire and reason about the situational context and adapt application accordingly. Context-aware system start with gathering of raw, low-level contextual data, interpret the raw contextual data into high-level interpreted context, reason the interpreted context to derive implications and adapt the application behaviour on the basis of th...

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...