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DEXA
2003
Springer
134views Database» more  DEXA 2003»
14 years 7 days ago
Concurrent and Real-Time Update of Access Control Policies
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...
Indrakshi Ray, Tai Xin
IS
2000
13 years 6 months ago
Concurrency control in mobile distributed real-time database systems
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. ...
RTSS
1990
IEEE
13 years 11 months ago
Dynamic Real-Time Optimistic Concurrency Control
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...
Jayant R. Haritsa, Michael J. Carey, Miron Livny
PODS
1990
ACM
150views Database» more  PODS 1990»
13 years 11 months ago
On Being Optimistic about Real-Time Constraints
- Performancestudiesof concurrencycontrol algorithms for conventional database systems have shown that, under most operating circumstances, locking protocols outperform optimistic ...
Jayant R. Haritsa, Michael J. Carey, Miron Livny
RTSS
1995
IEEE
13 years 10 months ago
Managing Contention and Timing Constraints in a Real-Time Database System
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...
Matthew R. Lehr, Young-Kuk Kim, Sang Hyuk Son