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RTSS
2007
IEEE
14 years 1 months ago
Toward the Predictable Integration of Real-Time COTS Based Systems
The integration phase of real-time COTS-based systems is often problematic because when multiple tasks run concurrently, the interference at the bus level between cache fetching a...
Rodolfo Pellizzoni, Marco Caccamo
SIGMOD
1995
ACM
161views Database» more  SIGMOD 1995»
13 years 11 months ago
Applying Update Streams in a Soft Real-Time Database System
Many papers have examined how to e ciently export a materialized view but to our knowledge none have studied how to e ciently import one. To import a view, i.e., to install a stre...
Brad Adelberg, Hector Garcia-Molina, Ben Kao
RTCSA
1999
IEEE
13 years 11 months ago
Dynamic Adjustment of Serialization Order Using Timestamp Intervals in Real-Time Databases
Although an optimistic approach has been shown to be better than locking protocols for real-time database systems (RTDBS), it has the problems of unnecessary restarts and heavy re...
Jan Lindström, Kimmo E. E. Raatikainen
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
DEXA
2003
Springer
134views Database» more  DEXA 2003»
14 years 23 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