Sciweavers

1812 search results - page 21 / 363
» Dynamic Query Scheduling in Data Integration Systems
Sort
View
JLP
2000
102views more  JLP 2000»
13 years 8 months ago
Recursive Query Plans for Data Integration
Generating query-answering plans for data integration systems requires to translate a user query, formulated in terms of a mediated schema, to a query that uses relations that are...
Oliver M. Duschka, Michael R. Genesereth, Alon Y. ...
CIKM
2001
Springer
14 years 1 months ago
Joint Optimization of Cost and Coverage of Query Plans in Data Integration
Existing approaches for optimizing queries in data integration use decoupled strategies–attempting to optimize coverage and cost in two separate phases. Since sources tend to ha...
Zaiqing Nie, Subbarao Kambhampati
ICCAD
2000
IEEE
149views Hardware» more  ICCAD 2000»
14 years 1 months ago
Dynamic Response Time Optimization for SDF Graphs
Synchronous Data Flow (SDF) is a well-known model of computation that is widely used in the control engineering and digital signal processing domains. Existing scheduling methods ...
Dirk Ziegenbein, Jan Uerpmann, Ralph Ernst
ADC
2008
Springer
114views Database» more  ADC 2008»
13 years 11 months ago
An Integrated Access Control for Securely Querying and Updating XML Data
Many existing access controls use node filtering or querying rewriting techniques. These techniques require rather time-consuming processes such as parsing, labeling, pruning and/...
Maggie Duong, Yanchun Zhang
ICDE
2010
IEEE
273views Database» more  ICDE 2010»
14 years 8 months ago
WikiAnalytics: Ad-hoc Querying of Highly Heterogeneous Structured Data
Searching and extracting meaningful information out of highly heterogeneous datasets is a hot topic that received a lot of attention. However, the existing solutions are based on e...
Andrey Balmin, Emiran Curtmola