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» The many forms of hypercomputation
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EDBT
2012
ACM
214views Database» more  EDBT 2012»
13 years 6 months ago
An optimization framework for map-reduce queries
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
Leonidas Fegaras, Chengkai Li, Upa Gupta
SIGMOD
2004
ACM
142views Database» more  SIGMOD 2004»
16 years 4 months ago
Understanding Web Query Interfaces: Best-Effort Parsing with Hidden Syntax
Recently, the Web has been rapidly "deepened" by many searchable databases online, where data are hidden behind query forms. For modelling and integrating Web databases,...
Zhen Zhang, Bin He, Kevin Chen-Chuan Chang
VLDB
2007
ACM
179views Database» more  VLDB 2007»
16 years 4 months ago
Mining Approximate Top-K Subspace Anomalies in Multi-Dimensional Time-Series Data
Market analysis is a representative data analysis process with many applications. In such an analysis, critical numerical measures, such as profit and sales, fluctuate over time a...
Xiaolei Li, Jiawei Han
ICIP
2008
IEEE
15 years 10 months ago
Stochastic fusion of multi-view gradient fields
Image gradients form powerful cues in a host of vision and graphics applications. In this paper, we consider multiple views of a textured planar scene and consider the problem of ...
Aswin C. Sankaranarayanan, Rama Chellappa
COMPSAC
2002
IEEE
15 years 9 months ago
A Dictionary-Based Compressed Pattern Matching Algorithm
Compressed pattern matching refers to the process of, given a text in a compressed form and a pattern, finding all the occurrences of the pattern in the text without decompressio...
Meng-Hang Ho, Hsu-Chun Yen