'Input tuple' diaporamas de présentation

Semantics and Evaluation Techniques for Window Aggregates in Data Streams

Jin Li, David Maier, Kristin Tufte, Vassilis Papadimos, Peter A. Tucker SIGMOD 2005. Semantics and Evaluation Techniques for Window Aggregates in Data Streams. Introduction. Window aggregation is an important query capacity. Evaluating window aggregate queries over streams is non-trivial.

504 views • 34 slides

419 views • 26 slides

Threshold Direct Product Theorems: a survey

Threshold Direct Product Theorems: a survey. Ragesh Jaiswal Indian Institute of Technology Delhi. Direct Product Theorems. If a problem is hard to solve on the average, then solving k instances of the problem becomes exponentially harder.

235 views • 23 slides

Extend Core UDF Framework for GPU-Enabled Analytical Query Evaluation

Extend Core UDF Framework for GPU-Enabled Analytical Query Evaluation. Qiming Chen, Ren Wu, Meichun Hsu, Bin Zhang HP Labs Palo Alto, CA, USA. 12 September 2014. Problems. Motivated by pushing-down analytics to DB layer for fast data access and reduced data move

240 views • 18 slides