نتایج جستجو برای: with random sampling method

تعداد نتایج: 9867348  

2013
Deborah G. MAYO

mistake that the probabilities for any binary trial are 0.5. Would anyone expect that in a random sample of two individuals from California that one would be infected with HIV and the other would not? Or expect that the sun would rise one day and not the next? In addition, uniform priors on the real line, or even normal distributions with mean zero and huge variances, say very silly things, for...

Journal: :CoRR 2017
Aaron Potechin Liu Yang

In this paper, we investigate property testing whether or not a degree d multivariate polynomial is a sum of squares or is far from a sum of squares. We show that if we require that the property tester always accepts YES instances and uses random samples, nΩ(d) samples are required, which is not much fewer than it would take to completely determine the polynomial. To prove this lower bound, we ...

Journal: :iranian journal of public health 0
xiangyu chen dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. qiaoqiao du dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. zongda jin dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. tian xu dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. jiachen shi dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china. ge gao dept. of epidemiology and health statistics, school of public health, medical college of soochow university , suzhou, china.

traditional survey methods may cause refusals to respond or untruthful replies when encounter the sensitive questions. the randomized response technique (rrt) is designed to decrease social desirability bias and obtain reliable estimates. this study aimed to apply these new methods on the sensitive questions survey.simmons model was applied in the survey of issues relevant to commercial sex amo...

1997
Banchong Harangsri John Shepherd Anne H. H. Ngu

We propose a new approach to the estimation of join selectivity. The technique, which we have called “systematic sampling”, is a novel variant of the sampling-based approach. Systematic sampling works as follows: Given a relation R of N tuples, with a join attribute that can be accessed in ascending/descending order via an index, if n is the number of tuples to be sampled from R, select a tuple...

2009
F. Knoll C. Clason R. Stollberger

measurements for subsampling with R=4, R=10 and R=18. Used sampling pattern (left), IRGN reconstruction (right). Fig. 2: Results of downsampling experiments of the brain for subsampling with R=10 and R=18. IRGN reconstructions of conventional regular Cartesian subsampling with autocalibration lines at the center of k-space (first column), radial subsampling (second column), variable density ran...

Journal: :ACM Transactions on Modeling and Computer Simulation 2012

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت دبیر شهید رجایی - دانشکده علوم انسانی 1393

according to research, academic self-concept and academic achievement are mutually interdependent. in the present study, the aim was to determine the relationship between the academic self-concept and the academic achievement of students in english as a foreign language and general subjects. the participants were 320 students studying in 4th grade of high school in three cities of noor, nowshah...

2000
Xuerong Ji Jing Xiao

Random sampling strategies play critical roles in ran-domized motion planners, which are promising and practical for motion planning problems with many degrees of freedom (dofs). In this paper, we explore random sampling in a constrained connguration space { the contact connguration space between two polyhedra, motivated by the need for generating contact motion plans. Given a contact formation...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه شیمی و مهندسی شیمی ایران - پژوهشکده شیمی تجزیه و معدنی 1390

hydrochlorothiazide (hct) is a diuretic agent which is shown to be effective in the treatment of hypertension. literature reports have demonstrated that urinary excretion data may be used to assess the bioavailability of various formulations containing this thiazide. also hct consumption by the athletes is one of the drugs which should be regulated by world anti-doping agency (wada), because of...

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