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» Algorithms for Querying by Spatial Structure
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VLDB
2004
ACM
104views Database» more  VLDB 2004»
14 years 9 months ago
Retrieval effectiveness of an ontology-based model for information selection
Technology in the field of digital media generates huge amounts of nontextual information, audio, video, and images, along with more familiar textual information. The potential for...
Latifur Khan, Dennis McLeod, Eduard H. Hovy
JODL
2007
109views more  JODL 2007»
13 years 9 months ago
Examining topic shifts in content-oriented XML retrieval
Abstract. Content-oriented XML retrieval systems support access to XML repositories by retrieving, in response to user queries, XML document components (XML elements) instead of wh...
Elham Ashoori, Mounia Lalmas, Theodora Tsikrika
CIKM
2009
Springer
14 years 3 months ago
Structure-aware indexing for keyword search in databases
Most of existing methods of keyword search over relational databases find the Steiner trees composed of relevant tuples as the answers. They identify the Steiner trees by discove...
Guoliang Li, Jianhua Feng, Jianyong Wang
DBPL
1999
Springer
102views Database» more  DBPL 1999»
14 years 1 months ago
Union Types for Semistructured Data
Semistructured databases are treated as dynamically typed: they come equipped with no independent schema or type system to constrain the data. Query languages that are designed fo...
Peter Buneman, Benjamin C. Pierce
PODS
1997
ACM
182views Database» more  PODS 1997»
14 years 1 months ago
A Cost Model For Nearest Neighbor Search in High-Dimensional Data Space
In this paper, we present a new cost model for nearest neighbor search in high-dimensional data space. We first analyze different nearest neighbor algorithms, present a generaliza...
Stefan Berchtold, Christian Böhm, Daniel A. K...