Sciweavers

2233 search results - page 333 / 447
» Modular type classes
Sort
View
223
Voted
ICDE
2008
IEEE
132views Database» more  ICDE 2008»
16 years 4 months ago
The Space Complexity of Processing XML Twig Queries Over Indexed Documents
Abstract-- Current twig join algorithms incur high memory costs on queries that involve child-axis nodes. In this paper we provide an analytical explanation for this phenomenon. In...
Mirit Shalem, Ziv Bar-Yossef
195
Voted
ICDE
2006
IEEE
98views Database» more  ICDE 2006»
16 years 4 months ago
Space-Partitioning Trees in PostgreSQL: Realization and Performance
Many evolving database applications warrant the use of non-traditional indexing mechanisms beyond B+-trees and hash tables. SP-GiST is an extensible indexing framework that broade...
Mohamed Y. Eltabakh, Ramy Eltarras, Walid G. Aref
218
Voted
ICDE
2006
IEEE
136views Database» more  ICDE 2006»
16 years 4 months ago
XCluster Synopses for Structured XML Content
We tackle the difficult problem of summarizing the path/branching structure and value content of an XML database that comprises both numeric and textual values. We introduce a nov...
Neoklis Polyzotis, Minos N. Garofalakis
ICDE
2005
IEEE
86views Database» more  ICDE 2005»
16 years 4 months ago
Personalized Queries under a Generalized Preference Model
Query Personalization is the process of dynamically enhancing a query with related user preferences stored in a user profile with the aim of providing personalized answers. The un...
Georgia Koutrika, Yannis E. Ioannidis
116
Voted
ICPR
2006
IEEE
16 years 3 months ago
Activity Discovery from Surveillance Videos
Multi-agent interactions often result in mutual occlusion sequences which constitute a visual signature for the event. We define six qualitative occlusion primitives based on the ...
Amitabha Mukerjee, K. S. Venkatesh, Pabitra Mitra,...