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FOCS
2000
IEEE
15 years 11 months ago
Stable Distributions, Pseudorandom Generators, Embeddings and Data Stream Computation
In this article, we show several results obtained by combining the use of stable distributions with pseudorandom generators for bounded space. In particular: —We show that, for a...
Piotr Indyk
ICDE
2010
IEEE
240views Database» more  ICDE 2010»
15 years 11 months ago
Top-K aggregation queries over large networks
Searching and mining large graphs today is critical to a variety of application domains, ranging from personalized recommendation in social networks, to searches for functional ass...
Xifeng Yan, Bin He, Feida Zhu, Jiawei Han
SIGMOD
1999
ACM
108views Database» more  SIGMOD 1999»
15 years 11 months ago
DynaMat: A Dynamic View Management System for Data Warehouses
Pre-computation and materialization of views with aggregate functions is a common technique in Data Warehouses. Due to the complex structure of the warehouse and the different pro...
Yannis Kotidis, Nick Roussopoulos
IPPS
1999
IEEE
15 years 11 months ago
A Graph Based Framework to Detect Optimal Memory Layouts for Improving Data Locality
In order to extract high levels of performance from modern parallel architectures, the effective management of deep memory hierarchies is very important. While architectural advan...
Mahmut T. Kandemir, Alok N. Choudhary, J. Ramanuja...
EMMCVPR
1999
Springer
15 years 11 months ago
A New Algorithm for Energy Minimization with Discontinuities
Many tasks in computer vision involve assigning a label (such as disparity) to every pixel. These tasks can be formulated as energy minimization problems. In this paper, we conside...
Yuri Boykov, Olga Veksler, Ramin Zabih