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EOR
2007
90views more  EOR 2007»
13 years 10 months ago
Accelerating column generation for variable sized bin-packing problems
In this paper, we study different strategies to stabilize and accelerate the column generation method, when it is applied specifically to the variable sized bin-packing problem,...
Cláudio Alves, José M. Valéri...
SSDBM
2009
IEEE
149views Database» more  SSDBM 2009»
14 years 4 months ago
Reverse k-Nearest Neighbor Search Based on Aggregate Point Access Methods
Abstract. We propose an original solution for the general reverse k-nearest neighbor (RkNN) search problem in Euclidean spaces. Compared to the limitations of existing methods for ...
Hans-Peter Kriegel, Peer Kröger, Matthias Ren...
DIS
2001
Springer
14 years 2 months ago
Dynamic Aggregation to Support Pattern Discovery: A Case Study with Web Logs
Rapid growth of digital data collections is overwhelming the capabilities of humans to comprehend them without aid. The extraction of useful data from large raw data sets is someth...
Lida Tang, Ben Shneiderman
SIGMOD
2000
ACM
161views Database» more  SIGMOD 2000»
14 years 2 months ago
Answering Complex SQL Queries Using Automatic Summary Tables
We investigate the problem of using materialized views to answer SQL queries. We focus on modern decision-support queries, which involve joins, arithmetic operations and other (po...
Markos Zaharioudakis, Roberta Cochrane, George Lap...
DASFAA
2009
IEEE
151views Database» more  DASFAA 2009»
14 years 4 months ago
The Challenge of Assuring Data Trustworthiness
Abstract. With the increased need of data sharing among multiple organizations, such as government organizations, financial corporations, medical hospitals and academic institution...
Elisa Bertino, Chenyun Dai, Murat Kantarcioglu