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FOCS
2009
IEEE
14 years 4 months ago
2009
IEEE
Abstract— We consider the problem of estimating cascaded aggregates over a matrix presented as a sequence of updates in a data stream. A cascaded aggregate P ◦Q is defined by ...
CORR
2010
Springer
13 years 10 months ago
2010
Springer
Concurrent reachability games is a class of games heavily studied by the computer science community, in particular by the formal methods community. Two standard algorithms for app...
COMPGEOM
2009
ACM
14 years 4 months ago
2009
ACM
We consider the following combinatorial problem: given a set of n objects (for example, disks in the plane, triangles), and an integer L ≥ 1, what is the size of the smallest su...
ATAL
2006
Springer
14 years 1 months ago
2006
Springer
We investigate the computational complexity of reasoning about multi-agent systems using the cooperation logic ATL of Alur, Henzinger, and Kupferman. It is known that satisfiabili...
POPL
2008
ACM
14 years 10 months ago
2008
ACM
We show that the reachability problem for recursive state machines (or equivalently, pushdown systems), believed for long to have cubic worst-case complexity, can be solved in sli...