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IDEAS
2000
IEEE
96views Database» more  IDEAS 2000»
15 years 11 months ago
A Cost Function for Uniformly Partitioned UB-Trees
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
Volker Markl, Rudolf Bayer
SIGMOD
1998
ACM
143views Database» more  SIGMOD 1998»
15 years 10 months ago
Optimal Multi-Step k-Nearest Neighbor Search
For an increasing number of modern database applications, efficient support of similarity search becomes an important task. Along with the complexity of the objects such as images...
Thomas Seidl, Hans-Peter Kriegel
ERCIMDL
1997
Springer
106views Education» more  ERCIMDL 1997»
15 years 10 months ago
Scalable Text Retrieval for Large Digital Libraries
It is argued that digital libraries of the future will contain terabyte-scale collections of digital text and that full-text searching techniques will be required to operate over c...
David Hawking
ICIAP
1997
ACM
15 years 10 months ago
Image Retrieval by Color Regions
—A major research subject in image databases is to support efficient and effective access to images based on their visual content. In color image databases, this requires to sup...
Alberto Del Bimbo, Mauro Mugnaini, Pietro Pala, F....
CIKM
1994
Springer
15 years 10 months ago
TID Hash Joins
TID hash joins are a simple and memory-efficient method for processing large join queries. They are based on standard hash join algorithms but only store TID/key pairs in the hash...
Robert Marek, Erhard Rahm