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    Scalar and Vector Partitions of the Probability Score: Part II. N-State Situation

    Source: Journal of Applied Meteorology:;1972:;volume( 011 ):;issue: 008::page 1183
    Author:
    Murphy, Allan H.
    DOI: 10.1175/1520-0450(1972)011<1183:SAVPOT>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Scalar and vector partitions of the probability score (PS) in N-state (N > 2) situations are described and compared. In N-state, as well as in two-state (N = 2), situations these partitions provide similar, but not equivalent (i.e., linearly related), measures of the reliability and resolution of probability forecasts. Specifically, the vector partition, when compared to the scalar partition, decreases the reliability and increases the resolution of the forecasts. A sample collection of forecasts is used to illustrate the differences between these partitions in N-state situations. Several questions related to the use of scalar and vector partitions of the PS in N-state situations are discussed, including the relative merits of these partitions and the effect upon sample size when forecasts are considered to be vectors rather than scalars. The discussions indicate that the vector partition appears to be more appropriate, in general, than the scalar partition, and that when the forecasts in a collection of forecasts are considered to be vectors rather than scalars the sample size of the collection may be substantially reduced.
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      Scalar and Vector Partitions of the Probability Score: Part II. N-State Situation

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    contributor authorMurphy, Allan H.
    date accessioned2017-06-09T17:23:55Z
    date available2017-06-09T17:23:55Z
    date copyright1972/12/01
    date issued1972
    identifier issn0021-8952
    identifier otherams-8452.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4227867
    description abstractScalar and vector partitions of the probability score (PS) in N-state (N > 2) situations are described and compared. In N-state, as well as in two-state (N = 2), situations these partitions provide similar, but not equivalent (i.e., linearly related), measures of the reliability and resolution of probability forecasts. Specifically, the vector partition, when compared to the scalar partition, decreases the reliability and increases the resolution of the forecasts. A sample collection of forecasts is used to illustrate the differences between these partitions in N-state situations. Several questions related to the use of scalar and vector partitions of the PS in N-state situations are discussed, including the relative merits of these partitions and the effect upon sample size when forecasts are considered to be vectors rather than scalars. The discussions indicate that the vector partition appears to be more appropriate, in general, than the scalar partition, and that when the forecasts in a collection of forecasts are considered to be vectors rather than scalars the sample size of the collection may be substantially reduced.
    publisherAmerican Meteorological Society
    titleScalar and Vector Partitions of the Probability Score: Part II. N-State Situation
    typeJournal Paper
    journal volume11
    journal issue8
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(1972)011<1183:SAVPOT>2.0.CO;2
    journal fristpage1183
    journal lastpage1192
    treeJournal of Applied Meteorology:;1972:;volume( 011 ):;issue: 008
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian