With the popularity of location-aware devices (e.g., smart phones), a large number trajectory data were collected. The dataset can be used in many fields including traffic monitoring, market analysis, city management, etc. collection and release will raise serious privacy concerns for users. If users’ is not protected enough, they refuse to share their data. In this paper, new protection method...

this study aimed to investigate the relationship between job satisfaction and rganizational citizenship behavior and personality traits city staff lorestan. the research objective of the application and the method of data collection, descriptive, correlative to-be conducted in 1394. the study population of 500 municipal employees lorestan 217 employees were selected using cochran formula the se...

The most common and conventional way to collect people’s opinions has always been random sampling and asking several survey questions by phone. For instance, if a news media is interested in how popular Obama is among Americans, it would probably call up a thousand people and ask how they would rate Obama. The data collected in this manner is considered a gold standard; there has been only few ...

This article develops a method of ratio estimate in fuzzy sense. By both the simple random sampling and stratified random sampling, we can obtain the ratio estimate in usual statistical sense. However, the sampling data may be ambiguous in some uncertain circumstance. To solve such kind of problem, we probe into the simple random sampling and stratified random sampling in fuzzy sense, obtain th...

We consider the problem of designing a network of sampling locations in a spatial domain that will be used to interpolate a spatial field. We focus on the random field model in which variance is given by an unknown step function of the locations. We express this uncertainty through an appropriate class of prior distributions and introduce a Bayesian sequential sampling algorithm. At each step, ...