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VLDB
2007
ACM
113views Database» more  VLDB 2007»
10 years 11 months ago
Fast nGram-Based String Search Over Data Encoded Using Algebraic Signatures
We propose a novel string search algorithm for data stored once and read many times. Our search method combines the sublinear traversal of the record (as in Boyer Moore or Knuth-M...
Witold Litwin, Riad Mokadem, Philippe Rigaux, Thom...
VLDB
2007
ACM
104views Database» more  VLDB 2007»
10 years 11 months ago
Inverse Functions in the AquaLogic Data Services Platform
When integrating data from heterogeneous sources, it is often necessary to transform both the schemas and the data from the underlying sources in order to present the integrated d...
Nicola Onose, Vinayak R. Borkar, Michael J. Carey
VLDB
2007
ACM
102views Database» more  VLDB 2007»
10 years 11 months ago
Randomized Algorithms for Data Reconciliation in Wide Area Aggregate Query Processing
Many aspects of the data integration problem have been considered in the literature: how to match schemas across different data sources, how to decide when different records refer...
Fei Xu, Chris Jermaine
VLDB
2007
ACM
147views Database» more  VLDB 2007»
10 years 11 months ago
A General Framework for Modeling and Processing Optimization Queries
An optimization query asks for one or more data objects that maximize or minimize some function over the data set. We propose a general class of queries, model-based optimization ...
Michael Gibas, Ning Zheng, Hakan Ferhatosmanoglu
VLDB
2007
ACM
141views Database» more  VLDB 2007»
10 years 11 months ago
Query Processing over Incomplete Autonomous Databases
Incompleteness due to missing attribute values (aka "null values") is very common in autonomous web databases, on which user accesses are usually supported through media...
Garrett Wolf, Hemal Khatri, Bhaumik Chokshi, Jianc...
VLDB
2007
ACM
138views Database» more  VLDB 2007»
10 years 11 months ago
CADS: Continuous Authentication on Data Streams
We study processing and authentication of long-running queries on outsourced data streams. In this scenario, a data owner (DO) constantly transmits its data to a service provider ...
Stavros Papadopoulos, Yin Yang, Dimitris Papadias
VLDB
2007
ACM
112views Database» more  VLDB 2007»
10 years 11 months ago
Stop-and-Restart Style Execution for Long Running Decision Support Queries
Long running decision support queries can be resource intensive and often lead to resource contention in data warehousing systems. Today, the only real option available to the DBA...
Surajit Chaudhuri, Raghav Kaushik, Ravishankar Ram...
VLDB
2007
ACM
108views Database» more  VLDB 2007»
10 years 11 months ago
Time Series Compressibility and Privacy
In this paper we study the trade-offs between time series compressibility and partial information hiding and their fundamental implications on how we should introduce uncertainty ...
Spiros Papadimitriou, Feifei Li, George Kollios, P...
VLDB
2007
ACM
144views Database» more  VLDB 2007»
10 years 11 months ago
Cooperative Scans: Dynamic Bandwidth Sharing in a DBMS
This paper analyzes the performance of concurrent (index) scan operations in both record (NSM/PAX) and column (DSM) disk storage models and shows that existing scheduling policies...
Marcin Zukowski, Sándor Héman, Niels...
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