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» Representing and Querying Data Transformations
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83
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JCDL
2003
ACM
77views Education» more  JCDL 2003»
15 years 6 months ago
On Querying Geospatial and Georeferenced Metadata Resources in G-Portal
G-Portal is a web portal system providing a range of digital library services to access geospatial and georeferenced resources on the Web. Among them are the storage and query sub...
Zehua Liu, Ee-Peng Lim, Wee Keong Ng, Dion Hoe-Lia...
SBBD
2007
69views Database» more  SBBD 2007»
15 years 3 months ago
Storing AXML documents with ARAXA
Active XML (AXML) documents combine extensional XML data with intentional data defined through Web service calls. The dynamic properties of these documents pose challenges to both ...
Cláudio Ananias Ferraz, Vanessa P. Braganho...
KDD
2009
ACM
188views Data Mining» more  KDD 2009»
16 years 2 months ago
Mining broad latent query aspects from search sessions
Search queries are typically very short, which means they are often underspecified or have senses that the user did not think of. A broad latent query aspect is a set of keywords ...
Xuanhui Wang, Deepayan Chakrabarti, Kunal Punera
89
Voted
EDBT
2008
ACM
103views Database» more  EDBT 2008»
16 years 1 months ago
A stratified approach to progressive approximate joins
Users often do not require a complete answer to their query but rather only a sample. They expect the sample to be either the largest possible or the most representative (or both)...
Wee Hyong Tok, Stéphane Bressan, Mong-Li Le...
ICDE
2012
IEEE
304views Database» more  ICDE 2012»
13 years 4 months ago
Learning-based Query Performance Modeling and Prediction
— Accurate query performance prediction (QPP) is central to effective resource management, query optimization and query scheduling. Analytical cost models, used in current genera...
Mert Akdere, Ugur Çetintemel, Matteo Rionda...