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» Tight lower bounds for selection in randomly ordered streams
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CORR
2007
Springer
82views Education» more  CORR 2007»
13 years 7 months ago
Sorting and Selection with Random Costs
There is a growing body of work on sorting and selection in models other than the unit-cost comparison model. This work treats a natural stochastic variant of the problem where the...
Stanislav Angelov, Keshav Kunal, Andrew McGregor
ICDT
2009
ACM
147views Database» more  ICDT 2009»
14 years 8 months ago
The average-case complexity of counting distinct elements
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
David P. Woodruff
ESA
2004
Springer
96views Algorithms» more  ESA 2004»
14 years 27 days ago
An Experimental Study of Random Knapsack Problems
The size of the Pareto curve for the bicriteria version of the knapsack problem is polynomial on average. This has been shown for various random input distributions. We experimenta...
René Beier, Berthold Vöcking
ICCAD
1997
IEEE
106views Hardware» more  ICCAD 1997»
13 years 11 months ago
Accurate power estimation for large sequential circuits
A power estimation approach is presented in which blocks of consecutive vectors are selected at random from a user-supplied realistic input vector set and the circuit is simulated...
Joseph N. Kozhaya, Farid N. Najm
EDBT
2004
ACM
174views Database» more  EDBT 2004»
14 years 7 months ago
Processing Data-Stream Join Aggregates Using Skimmed Sketches
There is a growing interest in on-line algorithms for analyzing and querying data streams, that examine each stream element only once and have at their disposal, only a limited amo...
Sumit Ganguly, Minos N. Garofalakis, Rajeev Rastog...