A concurrency control algorithm based on the transaction conflict graph is proposed. 提出了一种基于事务冲突图的并发控制方法。
Then it puts forward a hybrid cooperative model based on MAS, and discusses some key problems, including model organization structure, function components, concurrency control and dynamic group algorithm. 研究了该模型的结构、功能组成、资源访问冲突控制和动态群组算法流程等关键问题,并结合一个应用实例进行了验证。
Concurrency control algorithm is used to ensure the consistency of multiuser database while allowing a set of transactions to be executed concurrently. 并发控制算法是为了保证多用户并发执行下的数据库的一致性。
( b) Interruptive method and pre-lock method are put forward, and by analyzing detailedly concurrency control of multi-intersected copy replication, to devise algorithm of concurrency control of multi-intersected copy. 针对对等复制过程中并发情况提出了中断策略和优先级准封锁策略,同时对多分割副本复制过程中的并发控制问题进行了分类分析,并提出了多分割副本复制的并发控制算法。
In active real-time database systems, there are many coupling model between triggering transaction and triggered transaction. The conventional concurrency control algorithm can not schedule availably the transaction having complex coupling model. 主动实时数据库中触发事务与被触发事务在执行上具有多种耦合模式,传统的并发控制无法对具有复杂耦合模式的事务进行有效调度。
A Relaxed Serializability Concurrency Control Algorithm 一种准串行化并发控制算法
On Optimized Methods for Concurrency Control Algorithm of Database Systems 数据库系统的优化并行控制算法
An Improved Primary Copy Locking Concurrency Control Algorithm 一个改进的主副本并发控制算法
The basic concepts of snapshots are explained and the concurrency control algorithm based snapshots is given. At last the multilevel transactions execution histories resulting from the algorithm proved to be serializable. 介绍了快照的基本概念和基于快照的并发控制算法,并且证明了该算法能够为多级事务的执行产生一个可串行化的事务历史。
A Kind of Distributed Real-time Concurrency Control Algorithm 一种分布式实时事务调度算法
Third, a new optimistic concurrency control algorithm based on dynamic adjustment of execution order using commit space in RTDBSs, called OCC-CS, is introduced and the complexity of this algorithm is analyzed. 提出了基于提交范围(CommitSpace)的OCC-CS算法来实现动态调整执行顺序方法,并对OCC-CS算法进行了复杂度分析。
A Distributed Concurrency Control Algorithm for Managing Complex Objects 一种适用于复杂对象管理的分布式并发控制算法
The research of multilevel secure concurrency control algorithm base on snapshots requires two snapshots of the database at all but the system highest security level. High-level transactions access snapshots of low-level data instead of accessing low-level data directly. 基于快照的多级安全并发控制算法要求在每个安全级上(除系统最高安全级)为数据库创建两个快照,并且所有的高级事务都是访问数据库的某个快照而不是直接访问低级数据库。
Multiclass Concurrency Control Algorithm and Implementation in RTDBS 实时数据库系统的并发控制策略及其实现
Mean a while the underlying principles of three typical kinds of concurrency control, those algorithm based on OPT ( Operation Transpose) are studied deeply. 在并发控制设计中,分析比较了各种并发控制算法,尤其是对采用的操作转换算法(OPT)做了重点描述。
A Concurrency Control Algorithm for Active Rules Execution in the Framework of Database Transactions 事务框架下主动规则的并发控制算法
Concurrency Control Algorithm of Real-time DataBases 实时数据库的并发控制算法
Active Real-time Concurrency Control Algorithm Based on Coupling Model 基于耦合模式的主动实时并发控制算法
In view of the distributed database concurrency control, this paper has introduced the idea of conflict class, proposed an improved concurrency control algorithm on the basement of EWL algorithm. 针对分布式数据库系统的并发控制,本文引入了冲突类的思想,提出了一种对EWL算法的改进并发控制算法。
Concurrency Control Algorithm for Centralized Realtime CSCW Environment 集中式CSCW环境中对实时共享对象的并发控制算法
The present paper deals with lock inheritance and lock preemption among the concurrent rule transactions when shared data objects are accessed, and presents an concurrency control algorithm. The correctness of the algorithm is proven in the sense of layered serializability. 探讨并行规则事务对于共享数据对象的锁继承和锁剥夺关系,提出一个并发控制算法,并基于层次可串行性标准证明算法的正确性。
Then, a priority-based concurrency control algorithm used to ensure consistency of replicated data on Co-CAD participant sites is put forward after studying existing concurrency control algorithms. 并发控制用来维护各节点数据的一致性,是实现共享工作空间的基础,在基于对已有并发控制算法的分析基础上,文中提出基于优先级的并发控制算法。
It studies the collaborative interactive mode and realized methods, analyses the excellence and shortcoming of the traditional concurrency control algorithm and the centralized concurrency control based on token is proposed. 研究了协同交互模型及实现方法,分析传统并发控制算法的优缺点,提出了基于令牌的集中并发控制算法。
Under this architecture, an auto-coordinated concurrency control algorithm based on the operation relationship is provided. 在该结构的基础上,提出了一种基于操作关系进行自动调整的并发控制算法。
Meanwhile, a concurrency control algorithm and a running monitoring algorithm was designed and realized to solve multiple users access system simultaneously. 同时设计实现了并发控制算法和运行监控算法,用以解决多移动办公用户的并发访问控制操作,在此基础上,针对网络传输数据量有限的问题,设计实现了数据传送算法。