The Power spectrum estimation of randomly spaced samples using nonparametric methods is well known and is revisited in this paper. Commonly used nonparametric methods are Periodogram, Modified Periodogram and Welch methods. The Periodogram and Modified Periodogram are asymptotically inconsistent spectral estimators for non uniform samples, Welch method is a consistent estimate for the random sa...

introduction: breast cancer is one of the provalent cancers in the world. this cancer as well as other solid tumors, in the course of its development has phases in this order: epithelial dysplasia, carcinoma insitu, invassiveness and metastasis. breast cancer diagnosis is generally made with pathology methods. in this survey, measuring angiostatin (which is one of the most important and potent...

This paper proposes a novel type of random forests called a denoising random forests that are robust against noises contained in test samples. Such noise-corrupted samples cause serious damage to the estimation performances of random forests, since unexpected child nodes are often selected and the leaf nodes that the input sample reaches are sometimes far from those for a clean sample. Our main...

Proc SQL can be used to get a random sample from a large dataset with relative ease. A more common method of getting a random sample from a large dataset requires using the data step along with some programming or using the SURVEYSELECT procedure which became available in SAS/STAT beginning with SAS Version 8 ®. It is relatively easy to get a simple random sample using only the SQL procedure. I...