The focus of this paper is to consider the compressed sensing problem. It is stated that the compressed sensing theory, under certain conditions, helps relax the Nyquist sampling theory and takes smaller samples. One of the important tasks in this theory is to carefully design measurement matrix (sampling operator). Most existing methods in the literature attempt to optimize a randomly initiali...

the purpose of this study is to analyze the relationship between transformational leadership and job engagement by mediating role of psychological empowerment. concerning it’s purpose, the study is practical and considerate the data collection procedure it is a descriptive correlation study. the population of the study includes all kurdistan province education office staff (200 subjects) which ...

the focus of this paper is to consider the compressed sensing problem. it is stated that the compressed sensing theory, under certain conditions, helps relax the nyquist sampling theory and takes smaller samples. one of the important tasks in this theory is to carefully design measurement matrix (sampling operator). most existing methods in the literature attempt to optimize a randomly initiali...

we develop a two phase sampling procedure to determine the sample size necessary to estimatethe population mean of a normally distributed random variable and show that the resulting estimator has preassigned variance and is unbiased under a regular condition. we present a necessary and sufficient condition under which the final sample mean is an unbiased estimator for the population mean.

This paper focuses on sampling as a nexus of ethical dilemmas experienced by social workers and other applied empirical researchers. It is argued here that social workers and other applied researchers have an ethical obligation to construct the smallest representative samples possible. Although random sampling is considered by many researchers as the gold standard methodological procedure for m...