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Sharing sensitive context information among multiple distributed components in mobile environments introduces major security concerns. The distributed sensing, processing and actuating components of these applications can be compromised and modified or impersonated to extract private and confidential information or to inject false information. In this paper we present the Anubis protocol for remote...
Context-aware computing benefits mobile applications by adapting systems behavior through user surrounding. However, contextualized information retrieval for mobile user in mobile P2p environment still remains a challenging problem. In this paper, we present JHPeer framework for mobile information retrieval (IR) in hybrid peer to peer (P2P) networks. JHPeer incorporates context engine to fit on mobile...
When building document categorization in distributed mobile environments, feature selection methods need to be employed to have a compact representation for each document topic and to reduce noise during classification. When interaction occurs between the nodes, locally retrieved features representing the document topic and their attributes have to be shared to have a more accurate estimation of the...
Context-awareness has become a desired key feature of today's mobile systems, yet, its realization still remains a challenge. On the one hand, mobile computing provides great potential for adaptations based on sensed contextual information. On the other hand, the lack of dependability in mobile networks hampers an efficient provision of this information to requesting clients. In this paper we present...
With the emergence of pervasive computing environments, mobile information sharing and retrieval is becoming an exciting domain that challenges information scientists. In this paper, we describe a hybrid peer to peer context-aware framework for building mobile information sharing applications. A scalable and flexible architecture based on JXTA is presented. The architecture called "JHPeer"...
Ubiquitous connectivity and availability of P2P resources creates opportunities for building new services. This paper describes Jigsaw Distributed File System (JigDFS) which can be used to securely store and retrieve files on a P2P network anonymously. JigDFS is designed to provide strong encryption and a certain level of plausible deniability. Files in JigDFS are sliced into small segments using...
The following topics are dealt with: artificial intelligence; expert systems; human-computer interaction; security and access control; digital libraries; information visualization; P2P; peer to peer data management; information retrieval; information management; mobile, ad hoc and sensor network security; semantic Web; ontology; e-learning; ecommerce; e-business; e-government; Web mining; Web intelligence;...
The following topics are dealt with: database; expert system; text-based information retrieval; data management; virtual engineering; multimedia data mining; multimodal information content; Web semantics; XML; secure system methodology; global data repositories; mobile P2P; computer user behavior; information system; evolutionary techniques; information extraction; media production; e-learning system;...
Semantic data is widely used in order to increase the performance of peer-to-peer information retrieval networks. The most efficient approaches construct user profiles in order to describe the fields of interest of the users and to shape a semantic overlay network. However, the characteristics of mobile devices and the behavior of wireless peer-to-peer users require the consideration of the applied...
The following topics are dealt with: multiprocessor architecture; grid and cluster computing; information retrieval and mining; overlay and network architecture; power-aware architecture; mobile computing; parallel and distributed systems; security and trustworthy computing; wireless networks; resource scheduling; fault tolerance; peer-to-peer computing; wireless communication; parallel algorithms.
The following topics are dealt with: distributed systems; Web services; data security; fault tolerance; multimedia system; grid computing; mobile computing; peer-to-peer computing; query processing; knowledge representation; knowledge acquisition; knowledge discovery; data mining; information retrieval; business process monitoring; database mobility
The following topics are dealt with: business data processing; Internet; electronic commerce; grid computing; data mining; mobile agent; software architecture; workflow management software; business modeling; recommender system; content retrieval; peer-to-peer computing; data access; Web services
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