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ICPR
2004
IEEE
16 years 7 months ago
Entropy-Based Measures for Clustering and SOM Topology Preservation Applied to Content-Based Image Indexing and Retrieval
Content-based image retrieval (CBIR) addresses the problem of finding images relevant to the users' information needs, based principally on low-level visual features for whic...
Markus Koskela, Jorma Laaksonen, Erkki Oja
ERCIMDL
2005
Springer
305views Education» more  ERCIMDL 2005»
15 years 12 months ago
Focused Crawling Using Latent Semantic Indexing - An Application for Vertical Search Engines
Vertical search engines and web portals are gaining ground over the general-purpose engines due to their limited size and their high precision for the domain they cover. The number...
George Almpanidis, Constantine Kotropoulos, Ioanni...
VLDB
2005
ACM
132views Database» more  VLDB 2005»
15 years 12 months ago
MIX: A Meta-data Indexing System for XML
We present a system for efficient meta-data indexed querying of XML documents. Given the diversity of the information available in XML, it is very useful to annotate XML data wit...
SungRan Cho, Nick Koudas, Divesh Srivastava
DEXA
2003
Springer
162views Database» more  DEXA 2003»
15 years 11 months ago
Dynamic Splitting Policies of the Adaptive 3DR-Tree for Indexing Continuously Moving Objects
Moving-objects databases need a spatio-temporal indexing scheme for moving objects to efficiently process queries over continuously changing locations of the objects. A simple exte...
Bonggi Jun, Bonghee Hong, Byunggu Yu
ICDE
1992
IEEE
116views Database» more  ICDE 1992»
15 years 10 months ago
An Index Implementation Supporting Fast Recovery for the POSTGRES Storage System
This paper presents two algorithms for maintaining Btree index consistency in a DBMS which does not use write-ahead logging (WAL). One algorithm is similar to shadow paging, but i...
Mark Sullivan, Michael A. Olson