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PODS
2002
ACM
167views Database» more  PODS 2002»
15 years 12 months ago
OLAP Dimension Constraints
In multidimensional data models intended for online analytic processing (OLAP), data are viewed as points in a multidimensional space. Each dimension has structure, described by a...
Carlos A. Hurtado, Alberto O. Mendelzon
WSDM
2010
ACM
259views Data Mining» more  WSDM 2010»
15 years 9 months ago
Revisiting Globally Sorted Indexes for Efficient Document Retrieval
There has been a large amount of research on efficient document retrieval in both IR and web search areas. One important technique to improve retrieval efficiency is early termina...
Fan Zhang, Shuming Shi, Hao Yan, Ji-Rong Wen
SDM
2009
SIAM
235views Data Mining» more  SDM 2009»
15 years 9 months ago
Topic Cube: Topic Modeling for OLAP on Multidimensional Text Databases.
As the amount of textual information grows explosively in various kinds of business systems, it becomes more and more desirable to analyze both structured data records and unstruc...
ChengXiang Zhai, Duo Zhang, Jiawei Han
ICCD
2007
IEEE
322views Hardware» more  ICCD 2007»
15 years 8 months ago
Voltage drop reduction for on-chip power delivery considering leakage current variations
In this paper, we propose a novel on-chip voltage drop reduction technique for on-chip power delivery networks of VLSI systems in the presence of variational leakage current sourc...
Jeffrey Fan, Ning Mi, Sheldon X.-D. Tan
ICCD
2003
IEEE
137views Hardware» more  ICCD 2003»
15 years 8 months ago
Dynamic Thread Resizing for Speculative Multithreaded Processors
There is a growing interest in the use of speculative multithreading to speed up the execution of a program. In speculative multithreading model, threads are extracted from a sequ...
Mohamed M. Zahran, Manoj Franklin