This paper deals with the consensus problem for heterogeneous multi-agent systems. Different from most existing consensus protocols, we consider the consensus seeking of two types of agents, namely, active agents and ...This paper deals with the consensus problem for heterogeneous multi-agent systems. Different from most existing consensus protocols, we consider the consensus seeking of two types of agents, namely, active agents and passive agents. The objective is to directly control the active agents such that the states of all the agents would achieve consensus. In order to obtain a computational approach, we subtly introduce an appropriate Markov chain to cast the heterogeneous systems into a unified framework. Such a framework is helpful for tackling the constraints from passive agents. Furthermore, a sufficient and necessary condition is established to guarantee the consensus in heterogeneous multi-agent systems. Finally, simulation results are provided to verify the theoretical analysis and the effectiveness of the proposed protocol.展开更多
为了解决医疗系统中数据泄露和医疗机构间数据的孤岛问题,提出基于国密SM9的去中心化跨链医疗数据共享方案(SM9-based decentration cross-chain medical data sharing scheme, DCCMDSS).中继链和哈希时间锁定合约实现了医疗机构之间跨...为了解决医疗系统中数据泄露和医疗机构间数据的孤岛问题,提出基于国密SM9的去中心化跨链医疗数据共享方案(SM9-based decentration cross-chain medical data sharing scheme, DCCMDSS).中继链和哈希时间锁定合约实现了医疗机构之间跨链数据的可信共享,星际文件系统存储模式降低了区块链的存储压力并确保了医疗数据的完整性.SM9用于加密医疗数据,群签名允许群体成员代表集体签署数据而无需暴露个人身份,有效避免了隐私泄露问题并保证了签名的可追溯性.DCCMDSS降低了跨链交互中的计算复杂度,提升了医疗数据的安全性.展开更多
基金Project supported by the National Basic Research Program of China (Grant No. 2010CB731803)the National Natural Science Foundation of China (Grant Nos. 60934003, 60974123, 61172064, and 61273181)+1 种基金the Science and Technology Commission of Shanghai Municipality, China (Grant No. 11511501202)the Chenguang Program, China (Grant No. 09CG06)
文摘This paper deals with the consensus problem for heterogeneous multi-agent systems. Different from most existing consensus protocols, we consider the consensus seeking of two types of agents, namely, active agents and passive agents. The objective is to directly control the active agents such that the states of all the agents would achieve consensus. In order to obtain a computational approach, we subtly introduce an appropriate Markov chain to cast the heterogeneous systems into a unified framework. Such a framework is helpful for tackling the constraints from passive agents. Furthermore, a sufficient and necessary condition is established to guarantee the consensus in heterogeneous multi-agent systems. Finally, simulation results are provided to verify the theoretical analysis and the effectiveness of the proposed protocol.
文摘为了解决医疗系统中数据泄露和医疗机构间数据的孤岛问题,提出基于国密SM9的去中心化跨链医疗数据共享方案(SM9-based decentration cross-chain medical data sharing scheme, DCCMDSS).中继链和哈希时间锁定合约实现了医疗机构之间跨链数据的可信共享,星际文件系统存储模式降低了区块链的存储压力并确保了医疗数据的完整性.SM9用于加密医疗数据,群签名允许群体成员代表集体签署数据而无需暴露个人身份,有效避免了隐私泄露问题并保证了签名的可追溯性.DCCMDSS降低了跨链交互中的计算复杂度,提升了医疗数据的安全性.
