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Privacy is the most often cited criticism of context awareness in pervasive environments. Context aware pervasive applications have the vulnerabilities of capturing extensive portions of users' activities. Whether such data capture is an actual threat or not, users' perceptions of such possibilities may discourage them from using many useful pervasive applications. So far, in context aware pervasive...
Due to the fact that currently operating autonomous vehicles can observe only a limited area with their onboard sensors, safety regulations often dictate a very slow speed. However, as more and more sensors in the environment are available, we can fuse their information and provide extended information as a shared context model to support the autonomous vehicles. In this paper, we consider a scenario...
Context-aware computing is a new paradigm that relies on large amounts of data collected from a variety of sources, ranging from smartphones to sensors, to automatically take smart decisions. This usually leads to large volumes of data, that need to be further processed to derive higher-level context information. Clouds have recently emerged as interesting candidates to support the storage and aggregation...
The increasing penetration rate of feature rich mobile devices such as smartphones and tablets in the global population has resulted in a large number of applications and services being created or modified to support mobile devices. Mobile cloud computing is a proposed paradigm to address the resource scarcity of mobile devices in the face of demand for more computing intensive tasks. Several approaches...
In the era of knowledge economy, knowledge resources have become the most valuable assets for enterprises. To better understand and reuse knowledge, it is necessary to relate it with the context in which the knowledge is generated and used. This is a process that usually occurs in an experienced knowledge-worker's mind and without efficient supporting tools. This paper proposes an approach for the...
The paper presents a prototype radio network aiding the visually impaired in using the public transport. The main purpose of the network is to provide accurate and reliable location information as well as to enable access to location related context information. The data from radio nodes are used to facilitate the navigation in urban and indoor areas. Keeping up the connection with dedicated system...
Context information, such as user location, time, and user profile, has been popularly applied to analyze user behavior for many societies . In this paper, we develop a restaurant recommendation system based on mobile context-aware services to provide customized information for users. We analyze the service satisfaction ratings of the users to recommend favored restaurants for them. With mobile context...
Since its inception, Service Orientation allowed for distributed clients to invoke remote operations utilizing standardized protocols, programming paradigms and architectures. Furthermore, the problem of compiling complex service compositions, based on contextual information and user preferences, has been also extensively investigated by the research community. However, these techniques are mostly...
In this paper, we propose a process calculus, Context-aware System Calculus (CSC), in order to describe context-aware systems that can maintain context models and carry out some operations, including requesting context-aware services, according to the context rules. Besides, a context-aware system can also communicate with other systems or receive context information from context providers by sharing...
The rapid evolution of software paradigms, wireless technologies and mobile devices induced the emergence of new applications called context-aware services oriented applications. Such applications provide appropriate services or relevant information to the user or other applications to perform a specific task. An important challenge in such applications development process is context modeling and...
Ubiquitous computing has revolutionized the way we use computing. The widespread of wearable devices and the seamless connectivity between them have transcended the traditional computing era to the pervasive computing and enable new opportunities for a user to perform his/her operation all the time and everywhere. These new environments are characterized by large quantity of heterogeneous services...
In this paper, we investigate the use of Text Classification techniques to extract contextual information from user reviews for Context Aware Recommendation. We conduct several experiments to identify the best Text Representation settings and the best classification algorithm for our dataset. We carry out our experiments on hotel reviews. We focus on extracting the trip type, as contextual information,...
Communication networks are spreading everywhere. There are many issues related to these networks. One of them is server selection algorithm. By selecting an appropriate server: (i) we can guarantee a high perceived quality to the user and (ii) reduce the server response time. This issue is more important in the mobile thin client networks. In these networks, all requests are responded by the server...
Technological advances have created new possibilities in education, requiring the development of new pedagogical practices that contribute to the process of teaching and learning. This paper presents a proposal for the construction of an immersive virtual laboratory of computer networks in 3D OpenSim environment. The main advantages of the proposal are the development and the treatment of issues related...
Remote vehicle monitoring system keeps track of vehicle and also monitor the fleet level of the vehicle status. Here two problems are dealt with. First one is the anywhere any time monitoring of the vehicle status cannot be done through manual monitoring and the second one is the system behavior change according to user changes. The novelty of the proposed approach is twofold. First our proposal allows...
In the development of context-aware applications it is important the existence of applications/platforms that are responsible for the discovery and processing of context information and make it available to be used by these applications. This work presents an autonomous system for characterizing the context of a public place with information about its location, environmental conditions and the nature...
Ubiquitous computing environment, as a new paradigm of the digital information era, has been introduced to respond to rapid changes in society and culture. Home and abroad studies in recent years have made rapid progress in the ubiquitous environment, and it had influence on various fields such as intelligent context aware systems. Today, technology research around the world competes for the preoccupancy...
Use Case diagrams are widely used to model system behaviour and also to represent user's interaction with the system. Context Aware Systems (CASs) are dynamic in nature and their response is based on varying parameters such as time and location. Due to this dynamic nature, such systems cannot be represented by the existing form of use case diagrams. In this paper the authors present a set of enhancements...
Implicit social networking provides a goal-oriented platform for information retrieval and value-added interaction between telecom operators and their users. Implicit social networks can group users based on certain criteria by utilizing user preferences in a novel fashion, providing an innovative medium for upgrading existing, as well as developing new social networking services. This paper proposes...
With the new technological advances and strong move towards Future Internet and Internet as a Platform a new environment is emerging. This environment is generative, social, strongly interactive and collaborative, so users play a fundamental role in it. Business applications are simplifying, webifying and getting more user-centric. In this environment, context and context-awareness plays a fundamental...
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