cross-validation

• “Careful calibration and cross-validation procedures are necessary to establish a reliable relationship between a proxy indicator and the climatic variable or variables of interest, providing a “transfer” function that allows past climatic conditions to be estimated.”

  Arctic climate variability prior to 100 years BP

• “I've only skimmed the paper, but it looks like their model contains some adjustable parameters, and the phrase "cross-validation" doesn't appear anywhere in the text.”

  Open Source Forecasting, Arnold Kling | EconLog | Library of Economics and Liberty

• “Their reconstruction failed critical cross-validation tests (we have publicized the R2 failure, but it fails others as well); it is not robust the presence/absence of bristlecone pines; the supposedly carefully proxies included bristlecone growth, which specialists say is contaminated by 20th century fertilization; their methodology includes a wildly biased “principal components” methodology (which is not actually a principal components method).”

  Road Map and Site Rules « Climate Audit

• “A combination of cross-validation and bootstrap technique is useful for a robust validation.”

  Unthreaded #17 « Climate Audit

• “It seems that there were not independent test sets used, but cross-validation indicates that there approach is possible.”

  Archive 2007-01-01

• “He said that he was not involved in writing the SPM, but was lead author of a chapter in which he was again victimized by the IPCC claim that the MBH model had statistical skill in cross-validation statistics.”

  It's Hard to Imagine… « Climate Audit

• “This is especially critical if the above cross-validation is sensitive to the parameter in question, and is of course dramatically aggravated with the number of such choices.”

  Jean S on Rutherford et al 2005 « Climate Audit

• “In IPCC TAR, he said that their reconstruction had significant skill in cross-validation tests.”

  Earth's climate crashes in 2013 « Climate Audit

• “Mann said in MBH98 that verification r and r2 tests were used as well as RE and in IPCC TAR claimed significance in cross-validation tests.”

  Earth's climate crashes in 2013 « Climate Audit

• “Regarding the hybrid-20 variant, Rutherford et al., 2005 state: “As described below, cross-validation experiments motivate the choice f = 0.05 cpy 20-yr period for the split frequency in almost all cases.””

  Jean S on Rutherford et al 2005 « Climate Audit

Show 10 more examples...