Sciweavers

3303 search results - page 399 / 661
» Multidimensional Access Methods
Sort
View
SPW
2005
Springer
16 years 10 days ago
Countering Automated Exploits with System Security CAPTCHAS
Abstract. Many users routinely log in to their system with system administrator privileges. This is especially true of home users. The advantage of this setup is that these users c...
Dinan Gunawardena, Jacob Scott, Alf Zugenmaier, Au...
SSD
2005
Springer
175views Database» more  SSD 2005»
16 years 10 days ago
Probabilistic Spatial Queries on Existentially Uncertain Data
We study the problem of answering spatial queries in databases where objects exist with some uncertainty and they are associated with an existential probability. The goal of a thre...
Xiangyuan Dai, Man Lung Yiu, Nikos Mamoulis, Yufei...
VLDB
2005
ACM
81views Database» more  VLDB 2005»
16 years 10 days ago
Flexible Database Generators
Evaluation and applicability of many database techniques, ranging from access methods, histograms, and optimization strategies to data normalization and mining, crucially depend o...
Nicolas Bruno, Surajit Chaudhuri
VLDB
2005
ACM
120views Database» more  VLDB 2005»
16 years 9 days ago
Efficiently Processing Queries on Interval-and-Value Tuples in Relational Databases
With the increasing occurrence of temporal and spatial data in present-day database applications, the interval data type is adopted by more and more database systems. For an effic...
Jost Enderle, Nicole Schneider, Thomas Seidl
APWEB
2005
Springer
16 years 9 days ago
Labeling Scheme and Structural Joins for Graph-Structured XML Data
When XML documents are modeled as graphs, many challenging research issues arise. In particular, query processing for graphstructured XML data brings new challenges because traditi...
Hongzhi Wang, Wei Wang 0011, Xuemin Lin, Jianzhong...