Abstract. Access control policies are security policies that govern access to resources. Real-time update of access control policies, that is, updating policies while they are in e...
Abstract With the rapid advances in mobile computing technology, there is an increasing demand for processing realtime transactions in a mobile environment. This paper studies con...
Kam-yiu Lam, Tei-Wei Kuo, Wai-Hung Tsang, Gary C. ...
In a recent study, we have shown that in real-time database systems that discard late transactions, optimistic concurrency control outperforms locking. Although the optimistic alg...
- Performancestudiesof concurrencycontrol algorithms for conventional database systems have shown that, under most operating circumstances, locking protocols outperform optimistic ...
Previous work in real-time database management systems (RT-DBMS) has primarily based on simulation. This paper discusses how current real-time technology has been applied to archi...