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» Estimating the Quality of Databases
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SSDBM
2010
IEEE
181views Database» more  SSDBM 2010»
13 years 6 months ago
Stratified Reservoir Sampling over Heterogeneous Data Streams
Reservoir sampling is a well-known technique for random sampling over data streams. In many streaming applications, however, an input stream may be naturally heterogeneous, i.e., c...
Mohammed Al-Kateb, Byung Suk Lee
ADBIS
2011
Springer
275views Database» more  ADBIS 2011»
12 years 8 months ago
An Analysis of the Structure and Dynamics of Large-Scale Q/A Communities
Abstract. In recent years, the World Wide Web (WWW) has transformed to a gigantic social network where people interact and collaborate in diverse online communities. By using Web 2...
Daniel Schall, Florian Skopik
SIGMOD
2003
ACM
145views Database» more  SIGMOD 2003»
14 years 9 months ago
Evaluating Probabilistic Queries over Imprecise Data
Many applications employ sensors for monitoring entities such as temperature and wind speed. A centralized database tracks these entities to enable query processing. Due to contin...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...
VLDB
2007
ACM
103views Database» more  VLDB 2007»
14 years 9 months ago
On the Production of Anorexic Plan Diagrams
A "plan diagram" is a pictorial enumeration of the execution plan choices of a database query optimizer over the relational selectivity space. We have shown recently tha...
Harish D., Pooja N. Darera, Jayant R. Haritsa
CIA
2007
Springer
14 years 2 months ago
A Probabilistic Framework for Decentralized Management of Trust and Quality
In this paper, we propose a probabilistic framework targeting three important issues in the computation of quality and trust in decentralized systems. Specifically, our approach a...
Le-Hung Vu, Karl Aberer