快好知 kuaihz


random sampling造句
31. In the field of initialization of clustering for large data set, random sampling is used as an important reduction operation. 32. In each year of the study, 500–600 health facilities providing the BPHS were selected by stratified random sampling in 29 provinces of Afghanistan. 33. Used the random sampling, 134 loyal consumers and 87 ordinary consumers in sport lottery were investigated. 34. This study is a significant reference to the composite random sampling of bulk materials in practice. 35. We did the random sampling of five pieces per batch of 100. 36. Methods:The stratified sampling and cluster random sampling methods are used in this survey. 37. We randomly selected 806 children under 6 years of age from 45 primary anganwadi (childcare) centres in Chandigarh, Punjab, India, that were chosen through multistage stratified random sampling. 38. Five years ago, if you took a random sampling you would have discovered that most companies had physical control over their mission-critical data and processes. 39. Methods: The number of samples was calculated with the optimum allocation stratified random sampling survey. 40. Methods:Random sampling 104 products, using national standards to test health index and functional composition, using national standards and enterprise standards to judge results. 41. At last, the points in image with the target point in calibration board were matched with the help of RANSAC random sampling algorithm. 42. PPS random sampling was conducted in Xiamen to measure students'thyroid, urine Iodine and salt Iodine and surveil the of factory salt Iodine, resident salt Iodine and oneself iodized salt. 43. The random sampling of minimal subsets with statistics can substantially reduce the cost of compute. 44. Methods:Totally 1000 nurses were investigated with a self designed questionnaire using stratified random sampling. 45. The underlying validity of public opinion polling is based on the simple proposition that a genuinely random sampling of a given population will provide an accurate picture of the whole. 46. Firstly, the Gauss map of points on the cylinder and a random sampling method are used to compute the rotation axis equation of the simple articulator . 47. A simple random sampling method is implemented to evaluated the most popular IP address remapping data - base. 48. Method Some food processing employees were selected according to stratified random sampling method, and filled in a unified questionnaire anonymously. 49. Two kinds of estimators were compared under PPS sampling and simple random sampling with replacement. 50. Method To visit and talk with interviewees who are chosen with random sampling. 51. As a common sampling method in modern statistics, stratified sampling attracts much attention in practice. It has higher sampling precision than random sampling. 52. This study is based on a stratified random sampling sur-vey on passengers traveling by Taipei Metro. 53. Method Random sampling was used to edible areca-nut sold on market, followed by series of physicochemical and microbiological examination on DB43/132-2004 standard. 54. Under certain hypothesis a heuristic search can be considered as a random sampling process. Thus, it is possible to transfer the statistical inference method to the heuristic search. 55. Though stratified random sampling method is adopted for the arterial and collector functional systems, there is a good potential to improve it. 56. The improved DDST intelligence examination was done on 67 cases of endemic cretinism in Qinghai through random sampling and had got developmental quotient (DQ). 57. During the course of cluster sample verification, systematic sampling and stratified sampling"s accuracy are prior to simple random sampling"s. 58. Directionally solidified superalloy 's elastic constants were analyzed by employing statistical and random sampling methods. 59. Methods General investigation was adopted to understand the water supply situation in rural areas and stratified random sampling was used to monitor the water quality. 60. Methods: With layer - cluster random sampling, 1298 students were surveyed using self - administered questionnaire.