Optimizing top-k queries for middleware access: A unified cost-based approach

@article{Hwang2007OptimizingTQ,
  title={Optimizing top-k queries for middleware access: A unified cost-based approach},
  author={Seung-won Hwang and Kevin Chen-Chuan Chang},
  journal={ACM Trans. Database Syst.},
  year={2007},
  volume={32},
  pages={5}
}
This article studies optimizing top-k queries in middlewares. While many assorted algorithms have been proposed, none is generally applicable to a wide range of possible scenarios. Existing algorithms lack both the “generality” to support a wide range of access scenarios and the systematic “adaptivity” to account for runtime specifics. To fulfill this critical lacking, we aim at taking a cost-based optimization approach: By runtime search over a space of algorithms, cost-based optimization is… CONTINUE READING
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