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IPPS
2009
IEEE
14 years 4 months ago
Toward adjoinable MPI
4 Automatic differentiation is the primary means of obtaining analytic5 derivatives from a numerical model given as a computer program. There-6 fore, it is an essential productivi...
Jean Utke, Laurent Hascoët, Patrick Heimbach,...
LICS
2009
IEEE
14 years 4 months ago
On the Computational Complexity of Verifying One-Counter Processes
—One-counter processes are pushdown systems over a singleton stack alphabet (plus a stack-bottom symbol). We study the complexity of two closely related verification problems ov...
Stefan Göller, Richard Mayr, Anthony Widjaja ...
WEBDB
2009
Springer
100views Database» more  WEBDB 2009»
14 years 4 months ago
Towards Well-Behaved Schema Evolution
We study the problem of schema evolution in the RDF data model. RDF and the RDFS schema language are W3C standards for flexibly modeling and sharing data on the web. Although sch...
Rada Chirkova, George H. L. Fletcher
CSL
2009
Springer
14 years 4 months ago
Model Checking FO(R) over One-Counter Processes and beyond
Abstract. One-counter processes are pushdown processes over a singleton stack alphabet (plus a stack-bottom symbol). We study the problems of model checking asynchronous products o...
Anthony Widjaja To
TLCA
2009
Springer
14 years 4 months ago
Initial Algebra Semantics for Cyclic Sharing Structures
Terms are a concise representation of tree structures. Since they can be naturally defined by an inductive type, they offer data structures in functional programming and mechanis...
Makoto Hamana