An Entity of Type: Thing, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org:8891

In statistics, model validation is the task of evaluating whether a chosen statistical model is appropriate or not. Oftentimes in statistical inference, inferences from models that appear to fit their data may be flukes, resulting in a misunderstanding by researchers of the actual relevance of their model. To combat this, model validation is used to test whether a statistical model can hold up to permutations in the data. This topic is not to be confused with the closely related task of model selection, the process of discriminating between multiple candidate models: model validation does not concern so much the conceptual design of models as it tests only the consistency between a chosen model and its stated outputs.

Property Value
dbo:abstract
  • In statistics, model validation is the task of evaluating whether a chosen statistical model is appropriate or not. Oftentimes in statistical inference, inferences from models that appear to fit their data may be flukes, resulting in a misunderstanding by researchers of the actual relevance of their model. To combat this, model validation is used to test whether a statistical model can hold up to permutations in the data. This topic is not to be confused with the closely related task of model selection, the process of discriminating between multiple candidate models: model validation does not concern so much the conceptual design of models as it tests only the consistency between a chosen model and its stated outputs. There are many ways to validate a model. Residual plots plot the difference between the actual data and the model's predictions: correlations in the residual plots may indicate a flaw in the model. Cross validation is a method of model validation that iteratively refits the model, each time leaving out just a small sample and comparing whether the samples left out are predicted by the model: there are many kinds of cross validation. Predictive simulation is used to compare simulated data to actual data. External validation involves fitting the model to new data. Akaike information criterion estimates the quality of a model. (en)
  • У статистиці, затве́рджування моде́лі (англ. model validation) — це задача підтверджування того, що виходи статистичної моделі є прийнятними по відношенню до справжнього процесу, що породжує дані. Іншими словами, затверджування моделі є задачею підтверджування, що виходи статистичної моделі мають достатню точність відтворювання виходів процесу, що породжує дані, щоби було можливо досягати цілей дослідження. (uk)
dbo:thumbnail
dbo:wikiPageExternalLink
dbo:wikiPageID
  • 26502065 (xsd:integer)
dbo:wikiPageLength
  • 10606 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID
  • 1117288884 (xsd:integer)
dbo:wikiPageWikiLink
dbp:wikiPageUsesTemplate
dcterms:subject
rdfs:comment
  • У статистиці, затве́рджування моде́лі (англ. model validation) — це задача підтверджування того, що виходи статистичної моделі є прийнятними по відношенню до справжнього процесу, що породжує дані. Іншими словами, затверджування моделі є задачею підтверджування, що виходи статистичної моделі мають достатню точність відтворювання виходів процесу, що породжує дані, щоби було можливо досягати цілей дослідження. (uk)
  • In statistics, model validation is the task of evaluating whether a chosen statistical model is appropriate or not. Oftentimes in statistical inference, inferences from models that appear to fit their data may be flukes, resulting in a misunderstanding by researchers of the actual relevance of their model. To combat this, model validation is used to test whether a statistical model can hold up to permutations in the data. This topic is not to be confused with the closely related task of model selection, the process of discriminating between multiple candidate models: model validation does not concern so much the conceptual design of models as it tests only the consistency between a chosen model and its stated outputs. (en)
rdfs:label
  • Statistical model validation (en)
  • Затверджування статистичної моделі (uk)
owl:sameAs
prov:wasDerivedFrom
foaf:depiction
foaf:isPrimaryTopicOf
is dbo:wikiPageDisambiguates of
is dbo:wikiPageRedirects of
is dbo:wikiPageWikiLink of
is rdfs:seeAlso of
is foaf:primaryTopic of
Powered by OpenLink Virtuoso    This material is Open Knowledge     W3C Semantic Web Technology     This material is Open Knowledge    Valid XHTML + RDFa
This content was extracted from Wikipedia and is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License