Standard Deviation as a Query Hardness Estimator.
Joaquín Pérez-IglesiasLourdes AraujoPublished in: SPIRE (2010)
Keyphrases
- standard deviation
- estimation error
- database
- impulse response
- normal distribution
- query processing
- response time
- user queries
- keywords
- data structure
- correlation coefficient
- confidence level
- data sources
- np complete
- query evaluation
- maximum likelihood
- natural images
- denoising
- least squares
- computational complexity
- multiscale
- image processing