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Definition of Overfit
1. Verb. (statistics) To use a statistical model that has too many parameters relative to the size of the sample leading to a good fit with the sample data but a poor fit with new data. ¹
¹ Source: wiktionary.com
Definition of Overfit
1. fitted to excess [adj]
Lexicographical Neighbors of Overfit
Literary usage of Overfit
Below you will find example usage of this term as found in modern and/or classical literature:
1. Indoor Air Quality & Work Environment Study: Epa Headquarters Buildingsby Kevin Teichman by Kevin Teichman (1991)
"6.4.2.12 Chills and Fever (H12) Because of low symptom frequencies, both models
for men and women were overfit (LRS > 0.99). 6.4.2.13 Central Nervous System ..."
2. Surface Temperature Reconstructions for the Last 2,000 Years by National Research Council (U.S.) (2006)
"As discussed above, it is possible to overfit the statistical model during the
calibration period, which has the effect of underestimating the prediction ..."
3. Mathematical Statistics and Applications: Festschrift for Constance Van Eeden by Constance van Eeden, Marc Moore, Sorana Froda, Christian Léger (2003)
"Thus, when G is continuous, the empirical risk minimizer based on C will overfit
the data. Example 3.4. Let X = R2 and let H = {h(x) = 2l{x > a} - 1 : a ..."
4. Getting Started with SAS Enterprise Miner 4.3 by Institute SAS Institute, SAS Institute (2004)
"overfit models contain too many parameters (weights), and they do not generalize
well. See also underfit. partition to divide available data into training, ..."
5. A Handbook of Northern France by William Morris Davis (1918)
"... and where it therefore might expect- ably show the vigorous habit of an "
overfit " river, more competent than ever to flow vigorously around its valley ..."
6. A History of Modern Liberty by James Mackinnon (1908)
"It were good we made peace," wrote Conyers to his superior officer, " for we are
not overfit to make war." Besides, Leslie was too quick for the realisation ..."
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