英语词汇“data mining”的翻译、意思、用法、释义-英汉经管词典

单词	data mining
释义	data mining The production of spurious relationships in econometrics by running too many regressions. Standard tests of significance answer the question, given the variance of the data, what chance is there that an apparent relation could have arisen by chance? A coefficient is significant at the 5 per cent level, for example, if a result this far removed from zero would only have arisen by chance in 5 per cent of cases. When such tests were devised, regression calculations involved so much hard labour that probably only a few had been performed. The number-crunching power of modern computers is such that there may well have been thousands of regressions performed for each published result, so that apparent good fits may well owe a lot to chance.
随便看	maximizing profits maximum mean means test means-tested benefits mechanism, price median median voter Medicaid Medicare medium-dated security medium of exchange Medium-Term Financial Strategy member bank menu costs of inflation Mercado Comun del Sur mercantilism merchandise account merchant bank MERCOSUR merger merit goods MFA MFN microeconomics

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