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etimología

Qué (quién) es regression variance - definición

SOFTWARE BUG THAT BREAKS PREVIOUSLY WORKING FUNCTIONALITY

Regression bugs; Regression bug; Regression (programming); Regression detection; Bug regression; Software performance regression

Software regression

A software regression is a type of software bug where a feature that has worked before stops working. This may happen after changes are applied to the software's source code, including the addition of new features and bug fixes.

https://en.wikipedia.org/wiki/Software_regression

Bias–variance tradeoff

PROPERTY OF A SET OF PREDICTIVE MODELS WHEREBY MODELS WITH A LOWER BIAS IN PARAMETER ESTIMATION HAVE A HIGHER VARIANCE OF THE PARAMETER ESTIMATES ACROSS SAMPLES, AND VICE VERSA

Bias variance; Bias-variance tradeoff; Bias-variance dilemma; Bias–variance dilemma; Bias-variance decomposition; Bias–variance decomposition; Bias and variance tradeoff; Bias--variance tradeoff

In statistics and machine learning, the bias–variance tradeoff is the property of a model that the variance of the parameter estimated across samples can be reduced by increasing the bias in the estimated parameters.

https://en.wikipedia.org/wiki/Bias–variance_tradeoff

Allan variance

MEASURE OF FREQUENCY STABILITY IN CLOCKS AND OSCILLATORS

Allen variance; Allan deviation; Allan Variance; ADEV

The Allan variance (AVAR), also known as two-sample variance, is a measure of frequency stability in clocks, oscillators and amplifiers. It is named after David W.

https://en.wikipedia.org/wiki/Allan_variance

Wikipedia

Software regression

A software regression is a type of software bug where a feature that has worked before stops working. This may happen after changes are applied to the software's source code, including the addition of new features and bug fixes. They may also be introduced by changes to the environment in which the software is running, such as system upgrades, system patching or a change to daylight saving time. A software performance regression is a situation where the software still functions correctly, but performs more slowly or uses more memory or resources than before. Various types of software regressions have been identified in practice, including the following:

Local – a change introduces a new bug in the changed module or component.
Remote – a change in one part of the software breaks functionality in another module or component.
Unmasked – a change unmasks an already existing bug that had no effect before the change.

Regressions are often caused by encompassed bug fixes included in software patches. One approach to avoiding this kind of problem is regression testing. A properly designed test plan aims at preventing this possibility before releasing any software. Automated testing and well-written test cases can reduce the likelihood of a regression.

https://en.wikipedia.org/wiki/Software regression