Abstract Weaving of semantic web has to go a long way. It depends on how build comprehensive as well as unified methods to group all related data. Now web data availability is increasing which leads to the creation of one system. In this paper we have introduced the concept of semantic grouping of wiki information. However, we need to long way... Weaving of semantic web has to go a long way. It depends on how build comprehensive as well as unified methods to group all related data. Now web data availability is increasing which leads to the creation of one system. In this paper we have introduced the concept of semantic grouping of wiki information. However, we need to long way to find semantic grouping. Read More Read Less

Abstract Recent developments in sensor networks and cloud computing saw the emergence of a new platform called sensor-clouds. While the proposition of such a platform is to virtualise the management of physical sensor devices, we foresee novel applications being created based on a new class of social sensors. Social sensors are effectively a human-device combination that sends torrents of data as... Recent developments in sensor networks and cloud computing saw the emergence of a new platform called sensor-clouds. While the proposition of such a platform is to virtualise the management of physical sensor devices, we foresee novel applications being created based on a new class of social sensors. Social sensors are effectively a human-device combination that sends torrents of data as a result of social interactions. The data generated appear in different formats such as photographs, videos, or short texts, etc. Unlike other sensor devices, social sensors operate on the control of individuals via their mobile devices like smart phones, tablets or laptops. Further, they do not generate data at a constant rate or format like other sensors do. Instead, data from social sensors are spurious and varied, often in response to social events, or a news announcement of interests to the public. This collective presence of social data creates opportunities for novel applications never experienced before. This paper discusses three such applications utilising social sensors within a sensor-cloud environment. Consequently, the associated research problems are also presented. Read More Read Less

Abstract Among the goals of Knowledge Management (KM) we can cite the identification and capitalization of the know-how of companies in order to organize and disseminate them. KM is recognized as a nontrivial task. In the context of extended enterprises it is even more difficult because they are geographically distributed and use heterogeneous information systems. Indeed, information, from which knowledge is... Among the goals of Knowledge Management (KM) we can cite the identification and capitalization of the know-how of companies in order to organize and disseminate them. KM is recognized as a nontrivial task. In the context of extended enterprises it is even more difficult because they are geographically distributed and use heterogeneous information systems. Indeed, information, from which knowledge is derived from, is stored in different databases, distributed in different sites across the entire network of the extended enterprise. This paper proposes a semi-automatic approach for knowledge extraction from several databases. This knowledge will be stored in an organizational memory (OM). The approach is based upon the definition of ontologies for knowledge exchange and Model Driven Engineering concepts such as meta-models and transformation to process requests. Read More Read Less

Abstract The rogue DHCP is unauthorized server that releases the incorrect IP address to users and sniffs the traffic illegally. The contribution specially provides privacy to users and enhances the security aspects of mobile supported collaborative framework (MSCF) explained in [24].The paper introduces multi-frame signature-cum anomaly-based intrusion detection systems (MSAIDS) supported with novel algorithms and inclusion of new rules in existing... The rogue DHCP is unauthorized server that releases the incorrect IP address to users and sniffs the traffic illegally. The contribution specially provides privacy to users and enhances the security aspects of mobile supported collaborative framework (MSCF) explained in [24].The paper introduces multi-frame signature-cum anomaly-based intrusion detection systems (MSAIDS) supported with novel algorithms and inclusion of new rules in existing IDS. The major target of contribution is to detect the malicious attacks and blocks the illegal activities of rogue DHCP server. This innovative security mechanism reinforces the confidence of users, protects network from illicit intervention and restore the privacy of users. Finally, the paper validates the idea through simulation and compares the findings with known existing techniques. Read More Read Less

Abstract VANET has become an attractive domain of research because it has tremendous potential to improve safety and comfort on roads. One key usage of VANET is to support vehicle safety applications like dissemination of emergency messages. Due to inherent characteristics of vehicular ad hoc networks and the emergency of the messages, most of developed applications are based on multi hop... VANET has become an attractive domain of research because it has tremendous potential to improve safety and comfort on roads. One key usage of VANET is to support vehicle safety applications like dissemination of emergency messages. Due to inherent characteristics of vehicular ad hoc networks and the emergency of the messages, most of developed applications are based on multi hop broadcasting. The most basic strategy is called flooding. This strategy is well studied in the context of mobile ad hoc networks and has been shown it causes contentions, collisions and redundancy, well known as the ‘broadcast storm problem’. The majority of existing solutions focuses on decreasing the number of relay nodes and discards the use of unicast messages. In this paper we study a new strategy that combines the use of unicast and broadcast modes at the same time. Simulation results show that the proposed protocol achieves low latency in delivering emergency warnings in spite of the use of unicast messages. These results have been enhanced by modifying the MAC layer protocol parameters. Read More Read Less