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PODS
2015
ACM
11views Database» more  PODS 2015»
10 years 12 hour ago
Vertex and Hyperedge Connectivity in Dynamic Graph Streams
A growing body of work addresses the challenge of processing dynamic graph streams: a graph is defined by a sequence of edge insertions and deletions and the goal is to construct...
Sudipto Guha, Andrew McGregor, David Tench
PODS
2015
ACM
22views Database» more  PODS 2015»
10 years 12 hour ago
External Memory Stream Sampling
This paper aims to understand the I/O-complexity of maintaining a big sample set—whose size exceeds the internal memory’s capacity—on a data stream. We study this topic in a...
Xiaocheng Hu, Miao Qiao, Yufei Tao
PODS
2015
ACM
18views Database» more  PODS 2015»
10 years 12 hour ago
Skyline Queries with Noisy Comparisons
We study in this paper the computation of skyline queries - a popular tool for multicriteria data analysis - in the presence of noisy input. Motivated by crowdsourcing application...
Benoît Groz, Tova Milo
PODS
2015
ACM
25views Database» more  PODS 2015»
10 years 13 hour ago
Fast and Near-Optimal Algorithms for Approximating Distributions by Histograms
Histograms are among the most popular structures for the succinct summarization of data in a variety of database applications. In this work, we provide fast and nearoptimal algori...
Jayadev Acharya, Ilias Diakonikolas, Chinmay Hegde...
PODS
2015
ACM
12views Database» more  PODS 2015»
10 years 13 hour ago
Dichotomies in the Complexity of Preferred Repairs
The framework of database repairs provides a principled approach to managing inconsistencies in databases. Informally, a repair of an inconsistence database is a consistent databa...
Ronald Fagin, Benny Kimelfeld, Phokion G. Kolaitis