Travel survey sampling method and device
An adjusted and total sample technology, applied in the field of data processing, can solve the problem of not being able to obtain representative sampling samples, and achieve the effect of avoiding sampling disadvantages and improving representativeness
Active Publication Date: 2021-03-30
SHENZHEN URBAN TRANSPORT PLANNING CENT
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[0004] In view of this, the embodiment of the present application provides a travel survey sampling method, device, terminal equipment and computer-readable storage medium, which can solve the technical problem that representative sampling samples cannot be obtained
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[0030] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail. It should be noted that this application is applicable to sample sampling in different application scenarios. In order to better explain the technical solution of the application, the application takes the sample survey of residents' travel as an example to explain the technical solution of the application. Sample sampling methods for other scenarios can be obtained by analogy to the ...
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The invention is suitable for the technical field of data processing, and provides a travel survey sampling method and device, and the method comprises the steps: obtaining the feature data of each region under different region levels; obtaining a first joint distribution value of the first region based on the first feature data corresponding to the first region of the first region level; extracting a first sampling sample set corresponding to the first region from the first sample set according to the first joint distribution value; taking the first sampling sample set as a total sample set corresponding to a second region of a second region level, and obtaining a second joint distribution value corresponding to the second region based on second feature data corresponding to the second region; and according to the second joint distribution value, extracting a second sampling sample set corresponding to the second region from the first sampling sample set. Compared with a traditional sampling method, due to the fact that stratified sampling based on areas is adopted, sampling defects caused by a single reference condition are avoided, and representativeness of sampled samples is improved.
Description
technical field [0001] The present application belongs to the technical field of data processing, and in particular relates to a method and device for travel survey sampling. Background technique [0002] The basic requirement of sampling is to ensure that the selected sample units are fully representative of all samples. The purpose of sampling is to estimate and infer all sample characteristics from the analysis and research results of the sampled units, so as to effectively improve the quality of subsequent data analysis, parameter estimation and modeling. [0003] However, traditional sampling methods often use a single reference condition for sampling processing, resulting in unrepresentative sampling samples. For example, in the sample survey of residents' travel, due to the influence of multiple factors such as the unbalanced regional development and the differences in residents' travel behavior, it is impossible to obtain a representative sample. Contents of the i...
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CPCG06F17/18
Inventor 林涛刘恒丘建栋丁雪晴雷焕宇
Owner SHENZHEN URBAN TRANSPORT PLANNING CENT