Author: Hans T. Schreuder
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 6
Book Description
A key product of both Forest Inventory and Analysis (FIA) of the USDA Forest Service and the Natural Resources Inventory (NRI) of the Natural Resources Conservation Service is a scientific data base that should be defensible in court. Multiple imputation procedures (MIPs) have been proposed both for missing value estimation and prediction of non-remeasured cells in annualized forest inventories such as the Southern Annual Forest Inventory System (SAFIS). MIPs generate clean-looking data bases that are easily used but hide a serious weakness: under different assumptions made by reasonable people, very different data bases and conclusions can be generated. A MIP is an interesting idea for prediction but should only be used for analyses by users, not for filling in data in a public data base. Simple illustrations are given to make our points. To maintain a defensible data base, FIA and NRI should only provide algorithms to facilitate user-generated data for prediction of non-remeasured cells. Users, not FIA and NRI, should be responsible for generating data bases that utilize these algorithms or other algorithms of their choosing, incorporating assumptions that they are willing to make. But they should be encouraged to work with FIA and NRI personnel in utilizing such algorithms.
Data Estimation and Prediction for Natural Resources Public Data
Author: Hans T. Schreuder
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 6
Book Description
A key product of both Forest Inventory and Analysis (FIA) of the USDA Forest Service and the Natural Resources Inventory (NRI) of the Natural Resources Conservation Service is a scientific data base that should be defensible in court. Multiple imputation procedures (MIPs) have been proposed both for missing value estimation and prediction of non-remeasured cells in annualized forest inventories such as the Southern Annual Forest Inventory System (SAFIS). MIPs generate clean-looking data bases that are easily used but hide a serious weakness: under different assumptions made by reasonable people, very different data bases and conclusions can be generated. A MIP is an interesting idea for prediction but should only be used for analyses by users, not for filling in data in a public data base. Simple illustrations are given to make our points. To maintain a defensible data base, FIA and NRI should only provide algorithms to facilitate user-generated data for prediction of non-remeasured cells. Users, not FIA and NRI, should be responsible for generating data bases that utilize these algorithms or other algorithms of their choosing, incorporating assumptions that they are willing to make. But they should be encouraged to work with FIA and NRI personnel in utilizing such algorithms.
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 6
Book Description
A key product of both Forest Inventory and Analysis (FIA) of the USDA Forest Service and the Natural Resources Inventory (NRI) of the Natural Resources Conservation Service is a scientific data base that should be defensible in court. Multiple imputation procedures (MIPs) have been proposed both for missing value estimation and prediction of non-remeasured cells in annualized forest inventories such as the Southern Annual Forest Inventory System (SAFIS). MIPs generate clean-looking data bases that are easily used but hide a serious weakness: under different assumptions made by reasonable people, very different data bases and conclusions can be generated. A MIP is an interesting idea for prediction but should only be used for analyses by users, not for filling in data in a public data base. Simple illustrations are given to make our points. To maintain a defensible data base, FIA and NRI should only provide algorithms to facilitate user-generated data for prediction of non-remeasured cells. Users, not FIA and NRI, should be responsible for generating data bases that utilize these algorithms or other algorithms of their choosing, incorporating assumptions that they are willing to make. But they should be encouraged to work with FIA and NRI personnel in utilizing such algorithms.
Research Note RMRS
New Publications
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 138
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 138
Book Description
Annual Design-based Estimation for the Annualized Inventories of Forest Inventory and Analysis
Author: Hans T. Schreuder
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 8
Book Description
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 8
Book Description
Integrated Tools for Natural Resources Inventories in the 21st Century
Author: Mark H. Hansen
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 760
Book Description
Publisher:
ISBN:
Category : Forest surveys
Languages : en
Pages : 760
Book Description
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 752
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 752
Book Description
General Technical Report RMRS
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 470
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 470
Book Description
Designing Multipurpose Resource Inventories Course
Author:
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 646
Book Description
Publisher: Bib. Orton IICA / CATIE
ISBN:
Category :
Languages : en
Pages : 646
Book Description
General Technical Report NC.
Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 764
Book Description
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 764
Book Description
Proceedings of the Section on Statistics and the Environment
Author: American Statistical Association. Section on Statistics and the Environment
Publisher:
ISBN:
Category : Environmental policy
Languages : en
Pages : 772
Book Description
Publisher:
ISBN:
Category : Environmental policy
Languages : en
Pages : 772
Book Description