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» Caching in Multidimensional Databases
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DEXAW
2000
IEEE
160views Database» more  DEXAW 2000»
14 years 1 months ago
An Adaptive AVI-Based Cache Invalidation Scheme for Mobile Computing Systems
In a mobile computing system, caching data items at the mobile clients is important to reduce the data access delay in a unreliable and low bandwidth mobile network. However, effi...
Joe Chun-Hung Yuen, Edward Chan, Kam-yiu Lam, Hei-...
SIGMOD
1994
ACM
175views Database» more  SIGMOD 1994»
14 years 1 months ago
Sleepers and Workaholics: Caching Strategies in Mobile Environments
In the mobile wireless computing environment of the future, a large number of users, equipped with low-powered palmtop machines, will query databases over wireless communication ch...
Daniel Barbará, Tomasz Imielinski
ICDE
2009
IEEE
149views Database» more  ICDE 2009»
14 years 10 months ago
Online Tuning of Aggregation Tables for OLAP
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
Katja Hose, Daniel Klan, Kai-Uwe Sattler
ICDE
2003
IEEE
97views Database» more  ICDE 2003»
14 years 10 months ago
Spectral LPM: An Optimal Locality-Preserving Mapping using the Spectral (not Fractal) Order
For the past two decades, fractals (e.g., the Hilbert and Peano space-filling curves) have been considered the natural method for providing a locality-preserving mapping. The idea...
Mohamed F. Mokbel, Walid G. Aref, Ananth Grama
EDBT
2002
ACM
132views Database» more  EDBT 2002»
14 years 9 months ago
A Framework for the Physical Design Problem for Data Synopses
Maintaining statistics on multidimensional data distributions is crucial for predicting the run-time and result size of queries and data analysis tasks with acceptable accuracy. To...
Arnd Christian König, Gerhard Weikum