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DEBS
2009
ACM
14 years 1 months ago
Distributed event stream processing with non-deterministic finite automata
Efficient matching of incoming events to persistent queries is fundamental to event pattern matching, complex event processing, and publish/subscribe systems. Recent processing e...
Lars Brenna, Johannes Gehrke, Mingsheng Hong, Dag ...
STACS
2005
Springer
14 years 26 days ago
Robust Polynomials and Quantum Algorithms
We define and study the complexity of robust polynomials for Boolean functions and the related fault-tolerant quantum decision trees, where input bits are perturbed by noise. We ...
Harry Buhrman, Ilan Newman, Hein Röhrig, Rona...
MDM
2004
Springer
110views Communications» more  MDM 2004»
14 years 23 days ago
Universal Trajectory Queries for Moving Object Databases
In this paper, we consider a data model for uncertain trajectories of moving objects. In our model, the trajectory is a vector of uniform stochastic processes. We study “univers...
Hoda Mokhtar, Jianwen Su
STOC
2003
ACM
152views Algorithms» more  STOC 2003»
14 years 7 months ago
Cell-probe lower bounds for the partial match problem
Given a database of n points in {0, 1}d, the partial match problem is: In response to a query x in {0, 1, }d, find a database point y such that for every i whenever xi = , we have...
T. S. Jayram, Subhash Khot, Ravi Kumar, Yuval Raba...
PODS
2005
ACM
164views Database» more  PODS 2005»
14 years 7 months ago
Lower bounds for sorting with few random accesses to external memory
We consider a scenario where we want to query a large dataset that is stored in external memory and does not fit into main memory. The most constrained resources in such a situati...
Martin Grohe, Nicole Schweikardt