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Articles 361 - 365 of 365
Full-Text Articles in Computer Sciences
Quantitative Comparison Of Two Approaches To Agent Cooperation, Jose Ramon Espino
Quantitative Comparison Of Two Approaches To Agent Cooperation, Jose Ramon Espino
Computer Science and Engineering Theses - Archive
Multi-agent systems (MASs) are characterized by collections of autonomous agents that interact with each other in simple ways, but the collection of agents as a whole is characterized by emergent behavior (EB) which will have properties that individual agents do not. Engineers want to design artificial MASs for a variety of reasons including military operations. The idea is for the EB to be carrying out the mission itself. In this scenario, the agents are relatively inexpensive and expendable. A large body of work exists in MAS research for military applications and a variety of different designs have been proposed. Because …
Group Key Distribution Via Local Collaboration In Wireless Sensor Networks, Anuj Chadha
Group Key Distribution Via Local Collaboration In Wireless Sensor Networks, Anuj Chadha
Computer Science and Engineering Theses - Archive
Wireless sensor networks have been recognized as one of the most important technologies in the networking world. Security of sensor networks is one of the major concerns today. To this end, a whole suite of protocols have been designed to provide various security features which includes key management. This thesis covers the issue of group key management in wireless sensor networks. Traditional cryptographic techniques can be used to provide communication privacy and integrity, but do not provide scalable solutions to group key management. A group key management scheme for sensor networks has been discussed that targets at fast response to …
Distributed Streaming For Video On Demand, Shraddha Rumade
Distributed Streaming For Video On Demand, Shraddha Rumade
Computer Science and Engineering Theses - Archive
With the advent of digital media, implementing reliable Video on Demand (VoD) systems over the best effort Internet is a potential issue. Distributed streaming for Video on Demand presents a combination of two techniques. The first being Distributed Video Streaming using Multicast (DVSM) [1] involves video streaming from multiple servers to overcome path congestion. The second technique, Asynchronous Hybrid mechanism for Video on Demand [2] implements segmentation-based periodic broadcast to effectively share network bandwidth. In this work we aim at providing path diversity of multiple senders and maximizing bandwidth sharing via multicast. We exploit alternate paths in case of congestion …
A Framework For Model Checking Object Oriented Security Protocol Implementations, Parikshit Singh
A Framework For Model Checking Object Oriented Security Protocol Implementations, Parikshit Singh
Computer Science and Engineering Theses - Archive
With the rapid growth of the Internet, more and more vendors see the Internet as a viable marketplace. Since the Internet is public, providing security in the presence of malicious intruders has become paramount. Security protocols have been proposed to protect systems. These protocols work by exchanging messages, many of which are encrypted. Though it may take a long time for an intruder to break the underlying encryption employed by the protocol, it is possible for the intruder to intervene in the authentication process. It may take years before a crucial loophole is discovered in a security protocol. Until then, …
Graphical Event-Directed Scenario Behavioral Specifications For The Scenario-Based Engineering Process (Sep) Using A Domain Specific Software Architecture (Assa) Philosophy, Miao Xia
Computer Science and Engineering Theses - Archive
This thesis extends scenarios of a system into real-time event digraphs. A scenario is an event trace resulting from a particular thread of system execution. An event digraph is an event network. Multiple external stimuli result in a wave of execution in distributed and parallel architecture. A graph theoretic formal definition for event digraphs is developed with the finite sets of events and the scenario event order (SEO). A scenario language is developed from the event digraph. In modeling an event digraph, we introduce the frontier expansion mechanism which let the users and the developers go around the question if …