在无线传感器(Wireless Sensors Networks,WSN)中,由于节点能量有限,可能导致节点过早死亡,引起网络结构发生变化,链路稳定性变差。针对该问题文中提出了一种基于链路预测和能量感知的机会路由协议ELPOR(Opportunistic Routing Protocol...在无线传感器(Wireless Sensors Networks,WSN)中,由于节点能量有限,可能导致节点过早死亡,引起网络结构发生变化,链路稳定性变差。针对该问题文中提出了一种基于链路预测和能量感知的机会路由协议ELPOR(Opportunistic Routing Protocol Based on Link Prediction and Energy Sensing,ELPOR).该协议综合考虑节点能量和各节点之间链路连接的概率,从潜在的候选转发集中选择一个中继节点,以实现能量的高效利用和数据的可靠传输。仿真结果表明,该协议能够有效均衡网络能耗、提高吞吐量和延长网络生存周期。展开更多
The problem of mining frequent set is a key issue in data mining. In this paper, a new method of miningfrequent set based on the frequent link is proposed. The algorithm constructs alternate frequent link from the tra...The problem of mining frequent set is a key issue in data mining. In this paper, a new method of miningfrequent set based on the frequent link is proposed. The algorithm constructs alternate frequent link from the transac-tion, the alternate link is yielded by adding up the alternate frequent link which constructed by scanning the transac-tion database in proper order. The frequent link that comprises all the information is constructed with the frequentnode which is selected according requirement. Our algorithm need to scan the transaction database only once and easysupervises the change of frequent set in order to guarantee the right of association rule.展开更多
文摘在无线传感器(Wireless Sensors Networks,WSN)中,由于节点能量有限,可能导致节点过早死亡,引起网络结构发生变化,链路稳定性变差。针对该问题文中提出了一种基于链路预测和能量感知的机会路由协议ELPOR(Opportunistic Routing Protocol Based on Link Prediction and Energy Sensing,ELPOR).该协议综合考虑节点能量和各节点之间链路连接的概率,从潜在的候选转发集中选择一个中继节点,以实现能量的高效利用和数据的可靠传输。仿真结果表明,该协议能够有效均衡网络能耗、提高吞吐量和延长网络生存周期。
文摘The problem of mining frequent set is a key issue in data mining. In this paper, a new method of miningfrequent set based on the frequent link is proposed. The algorithm constructs alternate frequent link from the transac-tion, the alternate link is yielded by adding up the alternate frequent link which constructed by scanning the transac-tion database in proper order. The frequent link that comprises all the information is constructed with the frequentnode which is selected according requirement. Our algorithm need to scan the transaction database only once and easysupervises the change of frequent set in order to guarantee the right of association rule.