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Anonymization by sequential clustering for privacy-preservation in social networks

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The problem of privacy-preservation in social networks.The distributed setting in which the network data is split between several data holders. Networks are structures that describe a set of entities and the relations between them. A social network, for example, provides information on individuals in some population and the links between them, which may describe relations […]

Data-intensive wireless Sensor networks

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WSNs have been deployed in a variety of data intensive applications including micro-climate and habitat monitoring, precision agriculture, and audio/video surveillance. A moderate-size WSN can gather up to 1 Gb/year from a biological habitat . Due to the limited storage capacity of sensor nodes, most data must be transmitted to the base station for archiving […]

RDH techniques using directly for encrypted images

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Reversible data hiding (RDH) in images is a technique, by which the original cover can be losslessly recovered after the embedded message is extracted. This important technique is widely used in medical imagery, military imagery and law forensics, where no distortion of the original cover is allowed. Since first introduced, RDH has attracted considerable research […]

Analyzing the Wisconsin Breast Cancer (WDBC) Data Set

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In classification problems, the main goal is to derive an accurate representative data model that can correctly classify new test data instances. The accuracy of the classification model can be affected by the presence of outliers in a data set and the inability to correctly classify data records near the boundary. Considering the first case […]

Nice security measurement attack mitigation and countermeasures

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The methods for selecting the countermeasures for a given attack scenario. When vulnerabilities are discovered or some VMs are identified as suspicious, several countermeasures can be taken to restrict attackers’ capabilities and it’s important to differentiate between compromised and suspicious VMs. The countermeasure serves the purpose of 1) protecting the target VMs from being compromised; […]

Policy based management is a very effective method to protect sensitive information

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Policy administration is the key to protecting or operating information systems. Only after a legitimate policy set is designed, can the systems run correctly. This paper proposes a policy mechanism CPA under the current trust model, where a professional policy administrator or group is absent. Recently, the security of the Android platform becomes a hotspot […]

Group key management (GKM) in mobile communication

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The most important concerns is how to minimize the communication overhead when the shared GK is updated among the subscribers. Treebased KM, one class of GKM, has received considerable attention from many researchers since the amount of overhead for group rekeying is proportional to the logarithm of the group size. Many researchers have proposed new […]

Mobile users to collect the network-wide data

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We consider the problem of ubiquitous data collection by the mobile user in a wireless sensor network. The mobile user uses a handheld device to communicate with sensor nodes in the network. The mobile user roams within the network and instantly accesses network-wide data on a need basis. For instance, in the aforementioned GreenOrbs project, […]

EAACK is an acknowledgment-based IDS

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The approach described in this research paper is based on our previous work, where the backbone of EAACK was proposed and evaluated through implementation. Extend it with the introduction of digital signature to prevent the attacker from forging acknowledgment packets. EAACK is consisted of three major parts, namely, ACK, secure ACK (S-ACK), and misbehavior report […]

Analysis of a Naive Architecture of Mobile Presence Service

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Social network applications are becoming increasingly popular on mobile devices. A mobile presence service is an essential component of a social network application because it maintains each mobile user’s presence information, such as the current status (online/offline), GPS location and network address, and also updates the user’s online friends with the information continually. the system […]