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» Answering imprecise database queries: a novel approach
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ICDE
2004
IEEE
85views Database» more  ICDE 2004»
16 years 1 months ago
A Frequency-based Approach for Mining Coverage Statistics in Data Integration
Query optimization in data integration requires source coverage and overlap statistics. Gathering and storing the required statistics presents many challenges, not the least of wh...
Zaiqing Nie, Subbarao Kambhampati
DEXA
2007
Springer
127views Database» more  DEXA 2007»
15 years 6 months ago
A Method for Determining Ontology-Based Semantic Relevance
The semantic web is based on ontologies and metadata that indexes resources using ontologies. This indexing is called annotation. Ontology based information retrieval is an operati...
Tuukka Ruotsalo, Eero Hyvönen
ALGORITHMICA
2004
132views more  ALGORITHMICA 2004»
14 years 11 months ago
A General Model for Authenticated Data Structures
Query answers from on-line databases can easily be corrupted by hackers or malicious database publishers. Thus it is important to provide mechanisms which allow clients to trust th...
Charles U. Martel, Glen Nuckolls, Premkumar T. Dev...
DGCI
2000
Springer
15 years 3 months ago
An Efficient Shape-Based Approach to Image Retrieval
We consider the problem of finding the best match for a given query shape among candidate shapes stored in a shape base. This is central to a wide range of applications, such as, d...
Ioannis Fudos, Leonidas Palios
SSDBM
2006
IEEE
153views Database» more  SSDBM 2006»
15 years 6 months ago
HDF5-FastQuery: Accelerating Complex Queries on HDF Datasets using Fast Bitmap Indices
Large scale scientific data is often stored in scientific data formats such as FITS, netCDF and HDF. These storage formats are of particular interest to the scientific user com...
Luke J. Gosink, John Shalf, Kurt Stockinger, Keshe...