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- short-paperJuly 2014
Express execution lines and execution time estimation
IDEAS '14: Proceedings of the 18th International Database Engineering & Applications SymposiumJuly 2014, Pages 302–305https://doi.org/10.1145/2628194.2628219In this work, we propose the use of a size-based strategy to estimate the execution time of database commands. Proposed strategy classifies database commands into small or regular and long-running according to their estimated sizes and applies diverse ...
- research-articleOctober 2013
Cloudy: heterogeneous middleware for in time queries processing
IDEAS '13: Proceedings of the 17th International Database Engineering & Applications SymposiumOctober 2013, Pages 5–13https://doi.org/10.1145/2513591.2513659Parallel share-nothing architectures are currently used to handle large amounts of data arriving in real-time for processing. The continuous increase on data volume and organization, introduce several limitations to scalability and quality of service (...
- research-articleOctober 2013
Near real-time with traditional data warehouse architectures: factors and how-to
IDEAS '13: Proceedings of the 17th International Database Engineering & Applications SymposiumOctober 2013, Pages 68–75https://doi.org/10.1145/2513591.2513650Traditional data warehouses integrate new data during lengthy offline periods, with indexes being dropped and rebuilt for efficiency reasons. There is the idea that these and other factors make them unfit for realtime warehousing. We analyze how a set ...
- research-articleAugust 2012
TEEPA: a timely-aware elastic parallel architecture
IDEAS '12: Proceedings of the 16th International Database Engineering & Applications SysmposiumAugust 2012, Pages 24–31https://doi.org/10.1145/2351476.2351480Parallel Shared-Nothing architectures are frequently used to handle large star-schema Data Warehouses (DW). The continuous increase in data volume and the star-schema storage organization introduce severe limitations to scalability due to the well-known ...
- research-articleSeptember 2011
A predictable storage model for scalable parallel DW
IDEAS '11: Proceedings of the 15th Symposium on International Database Engineering & ApplicationsSeptember 2011, Pages 26–33https://doi.org/10.1145/2076623.2076628Star schema model, has been widely used as the facto DW storage organization on RDBMS. Business measures are stored in a central fact table along with a set of foreign keys referencing dimension tables. While this storage organization offers a good ...
- research-articleSeptember 2008
Enforcing time-constraints effectively for QoS-aware servers
IDEAS '08: Proceedings of the 2008 international symposium on Database engineering & applicationsSeptember 2008, Pages 39–47https://doi.org/10.1145/1451940.1451948One of the relevant Quality-of-Service (QoS) issues in web service provider infrastructures (Web-servers, web-services and backend database-servers) is how well they are able to handle congestion, while still meeting time-constraints for accepted ...