1-norm Correct Answer-Similar to rectilinear distance; measures the straight-line length of a vector from
the origin. If z=(z1,z2,...,zm) is a vector in an m-dimensional space, then it's 1-norm is square
root(|?1|+|?2|
...
1-norm Correct Answer-Similar to rectilinear distance; measures the straight-line length of a vector from
the origin. If z=(z1,z2,...,zm) is a vector in an m-dimensional space, then it's 1-norm is square
root(|?1|+|?2|+⋯+|??| = |?1|+|?2|+⋯+|?| = Σm over i=1 |??|
A/B Testing Correct Answer-testing two alternatives to see which one performs better
2-norm Correct Answer-Similar to Euclidian distance; measures the straight-line length of a vector from
the origin. If z=(z1,z2,...,zm) is a vector in an ?-dimensional space, then its 2-norm is the same as 1-
norm but everything is squared= square root(Σm over i=1 (|??|)^2)
Accuracy Correct Answer-Fraction of data points correctly classified by a model; equal to TP+TN /
TP+FP+TN+FN
Action Correct Answer-In ARENA, something that is done to an entity.
Additive Seasonality Correct Answer-Seasonal effect that is added to a baseline value (for example, "the
temperature in June is 10 degrees above the annual baseline").
Adjusted R-squared Correct Answer-Variant of R2 that encourages simpler models by penalizing the use
of too many variables.
AIC Correct Answer-Akaike information criterion- Model selection technique that trades off between
model fit and model complexity. When comparing models, the model with lower AIC is preferred.
Generally penalizes complexity less than BIC.
Algorithm C
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