Wireless sensor networks (WSNs) are considered as energy constrained network because it contains sensor nodes with limited battery capacity and transmission range. In WSNs there is one mechanism used to enlarge the lifespan of network and provide more efficient functioning procedures that is clustering. Clustering is a process to subdivide the sensing field of sensor […]
Selfish node detection in MANET
In this paper, we address the problem of selfishness in the context of replica allocation in a MANET, i.e., a selfish node may not share its own memory space to store replica for the benefit of other nodes. In this paper, we shall refer to such a problem as the selfish replica allocation. Simply, selfish […]
Class-dependent density-based feature Elimination
High-dimensional data sets are inherently sparse and hence, can be transformed to lower dimensions without losing too much information about the classes. In this paper we propose a new feature ranking algorithm, termed as, class-dependent density-based feature elimination, for binary data sets. CDFE uses a measure termed as, diff-criterion, to estimate the relevance of features. […]
Community anomaly detection system
Collaborative information systems (CISs) allow groups of users to communicate and cooperate over common tasks. CIS are increasingly relied upon to manage sensitive information. In this paper, we introduce a framework to detect anomalous insiders from the access logs of a CIS by leveraging the relational nature of system users as well as the meta-information […]
Citation Parser using Sequent Alignment
Parsing citations is essential for integrating bibliographical information published on the Internet. Most citation management techniques are based on the assumption that we can correctly identify the main components of a citation, such as authors’ names, title, publication venue, date, and the number of pages. In this paper, we propose a sequence-alignment based citation parser, […]
ABSM Protocol for Vehicular Ad Hoc Networks
Broadcasting is the task of sending a message from a source node to all other nodes in the network. It is frequently referred to also as data dissemination. The design of reliable and efficient broadcast protocols is a key enabler for the successful deployment of vehicular communication services. In this paper we develop the Acknowledged […]
MCE – Mobile Commerce Explorer for mining and prediction of mobile users
Abstract In this paper, we develop pattern mining and prediction techniques that explore the correlation between the moving behavior and purchasing transactions of mobile users to explore potential M-Commerce features. The MCE framework consists of three major components: The first component is Similarity Inference Model (SIM) for measuring the similarities among stores and items. […]
Energy-Efficient Cooperative Video Distribution with Statistical QoS Provisions over Wireless Networks
For real-time video broadcast where multiple users are interested in the same content, mobile-to-mobile cooperation can be utilized to improve delivery efficiency and reduce network utilization. Under such cooperation, however, real-time video transmission requires end-to-end delay bounds. Due to the inherently stochastic nature of wireless fading channels, deterministic delay bounds are prohibitively difficult to guarantee. […]
Logoot-Undo: Distributed Collaborative Editing System on P2P Networks
Peer-to-peer systems provide scalable content distribution for cheap and resist to censorship attempts. However, P2P networks mainly distribute immutable content and provide poor support for highly dynamic content such as produced by collaborative systems. A new class of algorithms called CRDT (Commutative Replicated Data Type), which ensures consistency of highly dynamic content on P2P networks, […]
An Autonomous Engine for Services Configuration and Deployment
The runtime management of the infrastructure providing service-based systems is a complex task, up to the point where manual operation struggles to be cost effective. As the functionality is provided by a set of dynamically composed distributed services, in order to achieve a management objective multiple operations have to be applied over the distributed elements […]