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Requirement modeling is an important procedure in software requirement engineering. Different from current requirement modeling methodology, this paper presents a new software behavior-oriented requirement description language-behavior description language (BDL) and a modeling methodology, and introduces a prototype system implementing the methodology. By using the modeling methodology, effective...
In this paper, we propose a new Dynamic Reputation Evaluation Model (DREM) to meet the requirement of characteristics and security in hierarchical Ad Hoc networks. In this model, the reputation relationship is defined with the consideration of related node roles and functions, and the reputation evaluation mechanism is built based on the correlation among nodes to evaluate and update the reputation...
In flight simulation, scenes are rich in content with the characteristic of large-scale. In this paper, a large-scale terrain rendering procedure suitable for flight simulation is given and a terrain data pre-scheduling criteria is established. A linked queue based quadtree partitioning algorithm is proposed, so that triangulation and elimination of cracks can be performed simultaneously during the...
In recent research on the Peer-To-Peer (P2P) content delivery system, network coding has been applied as a promising approach to improve the performance of P2P content delivery. Many studies have shown that the live P2P streaming system can take great advantage of network coding. It has also been shown that this technology can also resolves the "last block" problem. Accordingly, P2P seed...
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