A DSWN-based specific-purpose neural computing system

The Double Synapse Weighted Neuron (DSWN) is a kind of general-purpose neuron model, which with the ability of configuring Hyper-sausage neuron (HSN). After introducing the design method of hardware DSWN synapse, this paper proposed a DSWN-based specific purpose neural computing device-CASSANN-IIspr. As its application, a rigid body recognition system was developed on CASSANN-IIspr, which achieved better performance than RIBF-SVMs system.

Web Services Workflows—Composition, Co-Ordination, and Transactions in Service-Oriented Computing

Web services can be seen as a newly emerging research area for Service-oriented Computing and their implementation in Service-oriented Architectures. Web services are self-contained, self-describing modular applications or components providing services. Web services may be dynamically aggregated, composed, and enacted as Web services Workflows. This requires frameworks and interaction protocols for their co-ordination and transaction support. In a Service-oriented Computing setting, transactions are more complex, involve multiple parties (roles), span many organizations, and may be long-running, consisting of a highly decentralized service partner and performed by autonomous entities. A Service-oriented Transaction Model has to provide comprehensive support for long-running propositions including negotiations, conversations, commitments, contracts, tracking, payments, and exception handling. Current transaction models and mechanisms including their protocols and primitives do not sufficiently cater for quality-aware and long running transactions comprising loosely-coupled (federated) service partners and resources. Web services transactions require co-ordination behavior provided by a traditional transaction mechanism to control the operations and outcome of an application. Furthermore, Web services transactions require the capability to handle the co-ordination of processing outcomes or results from multiple services in a more flexible manner. This requires more relaxed forms of transactions—those that do not strictly have to abide by the ACID properties—such as loosely-coupled collaboration and workflows. Furthermore, there is a need to group Web services into applications that require some form of correlation, but do not necessarily require transactional behavior. The purpose of this paper is to provide a state-of-the-art review and overview of some proposed standards surrounding Web services composition, co-ordination, and transaction. In particular the Business Process Execution Language for Web services (BPEL4WS), its co-ordination, and transaction frameworks (WS-Co-ordination and WS-Transaction) are discussed.

基于可信平台的安全审计日志

任何的安全系统，审计日志都是非常重要的一部分．因此必须保护好审计日志，保证审计日志的保密性和完整性．安全审计日志机制就是为了保护日志系统自身的安全性的，Schneier和Kelsey提出了一种机制来实现日志的防篡改，可以很好地保护系统生成的日志，但是该机制需要依赖于可信服务器．初步探索了可信平台上的安全审计日志机制，并且提出了一种新的日志机制来保护可信平台上生成的日志．该日志机制建立在微软提出的NGSCB平台上，不需要依赖于可信服务器．

基于可信平台的一种访问控制策略框架——TXACML

根据可信平台访问控制需求,提出一个可信平台属性分类规则,定义属性评估函数,可以实现可信平台数据安全分发和访问.同时针对XACML现有的策略合成算法不能有效满足可信平台自动方策略复合需求,设计了一个基于平台可信度的策略合成算法,该算法可以使策略的优先级和可信度保持一致,实现自动方策略复合.在此基础上,进一步对XACML实施扩展,形成可信平台策略语言框架TXACML(XACML based on trusted platform).采取TXACML对一个实例给出了策略描述和策略合成过程,验证了TXACML的有效性.

一种基于端对端平台可信性互认证的可信迁移框架及协议

中国计算机学会