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» On the Complexity of Several Haplotyping Problems
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CORR
2011
Springer
159views Education» more  CORR 2011»
14 years 4 months ago
How to Play Unique Games against a Semi-Random Adversary
In this paper, we study the average case complexity of the Unique Games problem. We propose a natural semi-random model, in which a unique game instance is generated in several st...
Alexandra Kolla, Konstantin Makarychev, Yury Makar...
ICCV
2009
IEEE
16 years 2 months ago
Efficient subset selection based on the Renyi entropy
Many machine learning algorithms require the summation of Gaussian kernel functions, an expensive operation if implemented straightforwardly. Several methods have been proposed t...
Vlad I. Morariu1, Balaji V. Srinivasan, Vikas C. R...
PODS
2005
ACM
211views Database» more  PODS 2005»
15 years 10 months ago
Join-distinct aggregate estimation over update streams
There is growing interest in algorithms for processing and querying continuous data streams (i.e., data that is seen only once in a fixed order) with limited memory resources. Pro...
Sumit Ganguly, Minos N. Garofalakis, Amit Kumar, R...
PODS
2006
ACM
95views Database» more  PODS 2006»
15 years 10 months ago
Randomized computations on large data sets: tight lower bounds
We study the randomized version of a computation model (introduced in [9, 10]) that restricts random access to external memory and internal memory space. Essentially, this model c...
André Hernich, Martin Grohe, Nicole Schweik...
EDBT
2010
ACM
153views Database» more  EDBT 2010»
15 years 4 months ago
Suggestion of promising result types for XML keyword search
Although keyword query enables inexperienced users to easily search XML database with no specific knowledge of complex structured query languages or XML data schemas, the ambigui...
Jianxin Li, Chengfei Liu, Rui Zhou, Wei Wang