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» Using UML to model relational database operations
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SIGMOD
2006
ACM
123views Database» more  SIGMOD 2006»
16 years 6 months ago
Proactive identification of performance problems
We propose to demonstrate Fa, an automated tool for timely and accurate prediction of Service-Level-Agreement (SLA) violations caused by performance problems in database systems. ...
Songyun Duan, Shivnath Babu
ICST
2008
IEEE
16 years 29 days ago
On Combining Multi-formalism Knowledge to Select Models for Model Transformation Testing
Testing remains a major challenge for model transformation development. Test models that are used as test data for model transformations, are constrained by various sources of kno...
Sagar Sen, Benoit Baudry, Jean-Marie Mottu
WEBDB
2010
Springer
224views Database» more  WEBDB 2010»
15 years 11 months ago
Concurrent One-Way Protocols in Around-the-Clock Social Networks
We introduce and study concurrent One-Way Protocols in social networks. The model is motivated by the rise of online social networks and the fast development of automation feature...
Royi Ronen, Oded Shmueli
VLDB
1989
ACM
140views Database» more  VLDB 1989»
15 years 10 months ago
The Effect of Bucket Size Tuning in the Dynamic Hybrid GRACE Hash Join Method
In this paper, we show detailed analysis and performance evaluation of the Dynamic Hybrid GRACE Hash Join Method (DHGH Method) when the tuple distribution in buckets is unbalanced...
Masaru Kitsuregawa, Masaya Nakayama, Mikio Takagi
ICDE
2010
IEEE
250views Database» more  ICDE 2010»
16 years 3 months ago
Optimized Query Evaluation Using Cooperative Sorts
— Many applications require sorting a table over multiple sort orders: generation of multiple reports from a table, evaluation of a complex query that involves multiple instances...
Yu Cao, Ramadhana Bramandia, Chee-Yong Chan, Kian-...