Seminars

A data-driven approach to cell ratio imputation for item nonresponse in data linkage problem

Wednesday, February 6, 2019 - 12:10pm to 1:00pm
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Danhyang Lee / Abstract: With the improved availability of administrative data sources, data linkage, which integrates administrative records with survey data, has been increasingly used to improve the quality of official statistics. However, there are some limitations in directly using the linked data for statistical analyses when administrative data does not cover a whole population of interest, hence, the linkage between survey data and administrative data is not perfect. Read more about A data-driven approach to cell ratio imputation for item nonresponse in data linkage problem

Progress Report: Visualization of Sheet and Rill Erosion on US Cropland

Wednesday, February 13, 2019 - 12:10pm to 1:00pm
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Xiaodan Lyu / Abstract: National Resource Inventory (NRI) is a longitudinal survey which monitors national resources on non-federal US land. It provides annual national and state-level estimates of average water erosion on cropland. Natural Resources Conservation Service (NRCS) did some primitive attempt to visualize sheet and rill erosion rates on US cropland every 5 years. Their maps represent a surface model based on a neighbor interpolation of all NRI sample sites. Read more about Progress Report: Visualization of Sheet and Rill Erosion on US Cropland

Summary of 2017 MMDS Survey

Wednesday, February 20, 2019 - 12:10pm to 1:00pm
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Zhenzhong Wang / Abstract:  Pet Demographics Survey (PDS) is a nationwide survey on pet ownership, veterinary visit and expenditure, which is conducted every five years. Metro Market Demand Survey (MMDS) is a smaller survey conducted every year. It is a supplemental survey for PDS and surveys about six geographic sub-regions of the U.S.. It has two goals: (1) Provide estimation of household pet ownership, veterinary visit and expenditure of each sub-region. (2) Annually update the nationwide PDS estimates by imputation. Read more about Summary of 2017 MMDS Survey