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» A Problem Space Approach to Expert System Specification
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PIMRC
2010
IEEE
15 years 2 months ago
Fast varying channel estimation in downlink LTE systems
This paper tackles the problem of fast varying channel estimation in LTE systems. Particular attention is given to downlink transmission where OFDMA is used as the multiple access ...
Youssef El Hajj Shehadeh, Serdar Sezginer
VLDB
1989
ACM
110views Database» more  VLDB 1989»
15 years 8 months ago
Derived Data Update in Semantic Databases
The derived data update problem involves the transformation of modifications of derived facts into corresponding changes to base facts and other derived facts. Using a database sc...
I-Min A. Chen, Dennis McLeod
ASPDAC
2004
ACM
144views Hardware» more  ASPDAC 2004»
15 years 8 months ago
Verification of timed circuits with symbolic delays
When time is incorporated in the specification of discrete systems, the complexity of verification grows exponentially. When the temporal behavior is specified with symbols, the ve...
Robert Clarisó, Jordi Cortadella
SIMPRA
2008
137views more  SIMPRA 2008»
15 years 3 months ago
An admissible-behaviour-based analysis of the deadlock in Petri-net controllers
This paper addresses the problem of verifying the discrete control logic that is typically implemented by programmable controllers. Not only are the logical properties of the cont...
G. Music, Drago Matko
SIGSOFT
2001
ACM
16 years 5 months ago
Combining UML and formal notations for modelling real-time systems
This article explores a dual approach to real-time software development. Models are written in UML, as this is expected to be relatively easy and economic. Then models are automat...
Luigi Lavazza, Gabriele Quaroni, Matteo Venturelli