🌐EnglishEnglishBahasa IndonesiaDeutschEspañolPortuguêsTiếng Việt中文EntityQ7045226· pop 5· linked from 26 articlesno free lunch theoremthe theorem that, if a machine-learning algorithm does well on some problems, then it pays for that on all other problemsAvailable in 5 languagesEspañolPortuguêsBahasa IndonesiaTiếng Việtvia Wikidata sitelinks · CC0ConnectionsInternational Standard Book NumberEntityfunctionEntityCategoriesMathematical theoremsPhilosophy of mathematicsScientific folklore