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Improvement Clustering & Election of Cluster-Head Using Fuzzy Logic in Mobile Wireless Sensor Networks
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作者 MehrdadMohaghegh Mohammad Mehrani +1 位作者 Mohsen Rahmani ali harounabadi 《通讯和计算机(中英文版)》 2011年第12期1039-1046,共8页
关键词 无线传感器网络 传感器节点 实时嵌入式系统 LEACH协议 聚类 能源消耗 应用程序 资源有限
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An Adaptive Method Based on High-Level Petri Nets for E-Learning
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作者 Fatemeh Omrani ali harounabadi Vahid Rafe 《Journal of Software Engineering and Applications》 2011年第10期559-570,共12页
Adaptive learning is a new approach for e-learning systems. In comparison to traditional e-learning systems, which present same things for all learners, these systems automatically adapt with learner characteristics. ... Adaptive learning is a new approach for e-learning systems. In comparison to traditional e-learning systems, which present same things for all learners, these systems automatically adapt with learner characteristics. In this paper, we are going to propose a new method for Adaptive learning, and consider adaptation from three viewpoints: 1) learner learning style, 2) learner’s knowledge level, 3) learner’s score. Due to similarity between learning objects graph and petri net, and In order to provide adaptive learning, we use an approach based on a high level petri net (HLPN).Also we propose a method to evaluate performance in this system. We compare our system with a non adaptive system, through our performance evaluating method. The results show response time for our system is less than non adaptive system and learners finish course in a relatively shorter period of time. Since our proposed system considers individual features of learner, we can be sure that learner would not be confused in learning materials. 展开更多
关键词 Adaptive LEARNING LEARNING STYLE High Level PETRI NETS RESPONSE Time
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