Sciweavers

720 search results - page 75 / 144
» Temporality in Databases
Sort
View
WWW
2009
ACM
14 years 10 months ago
Mapping the world's photos
We investigate how to organize a large collection of geotagged photos, working with a dataset of about 35 million images collected from Flickr. Our approach combines content analy...
David J. Crandall, Lars Backstrom, Daniel P. Hutte...
CAISE
1998
Springer
14 years 2 months ago
OMS/Java: Model Extensibility of OODBMS for Advanced Application Domains
We show how model extensibility of object-oriented data management systems can be achieved through the combination of a highlevel core object data model and an architecture designe...
Andreas Steiner, Adrian Kobler, Moira C. Norrie
SIGMOD
1987
ACM
69views Database» more  SIGMOD 1987»
14 years 1 months ago
Extending the Relational Algebra to Support Transaction Time
In this paper we discuss extensions to the conventional relatronal algebra to support transaction time We show that these extensions are applicable to hrstorlcal algebras that sup...
L. Edwin McKenzie, Richard T. Snodgrass
ICDE
2009
IEEE
120views Database» more  ICDE 2009»
14 years 11 months ago
Improving Transaction-Time DBMS Performance and Functionality
Immortal DB is a transaction time database system that is built into a commercial database system rather than being layered on top. This enables it to have performance that is very...
David B. Lomet, Feifei Li
ICDE
2002
IEEE
126views Database» more  ICDE 2002»
14 years 11 months ago
Sequenced Subset Operators: Definition and Implementation
Difference, intersection, semi-join and anti-semi-join may be considered binary subset operators, in that they all return a subset of their left-hand argument. These operators are...
Joseph Dunn, Sean Davey, Anne Descour, Richard T. ...