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» Efficient Processing of Top-k Queries in Uncertain Databases
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VLDB
1994
ACM
147views Database» more  VLDB 1994»
14 years 29 days ago
Integrating a Structured-Text Retrieval System with an Object-Oriented Database System
We describe the integration of a structuredtext retrieval system (TextMachine) into an object-oriented database system (OpenODB). We use the external function capability of the da...
Tak W. Yan, Jurgen Annevelink
AAAI
2008
13 years 11 months ago
Efficient Querying Relaxed Dominant Relationship between Product Items Based on Rank Aggregation
Current search engines cannot effectively rank those relational data, which exists on dynamic websites supported by online databases. In this study, to rank such structured data, ...
Zhenglu Yang, Lin Li, Masaru Kitsuregawa
FGCS
2000
81views more  FGCS 2000»
13 years 8 months ago
Managing the operator ordering problem in parallel databases
This paper focuses on parallel query optimization. We consider the operator problem and introduce a new class of execution strategies called Linear-Oriented Bushy Trees (LBTs). Co...
Harald Kosch
SSD
2009
Springer
233views Database» more  SSD 2009»
14 years 3 months ago
Approximate Evaluation of Range Nearest Neighbor Queries with Quality Guarantee
The range nearest-neighbor (NN) query is an important query type in location-based services, as it can be applied to the case that an NN query has a spatial region, instead of a lo...
Chi-Yin Chow, Mohamed F. Mokbel, Joe Naps, Suman N...
CLOUDCOM
2010
Springer
13 years 6 months ago
Voronoi-Based Geospatial Query Processing with MapReduce
Geospatial queries (GQ) have been used in a wide variety of applications such as decision support systems, profile-based marketing, bioinformatics and GIS. Most of the existing qu...
Afsin Akdogan, Ugur Demiryurek, Farnoush Banaei Ka...