Engineering > QUESTIONS & ANSWERS > ISYE 6501 FINAL EXAM|323 QUESTIONS WITH CORRECT ASWERS GARDED A+ (All)

ISYE 6501 FINAL EXAM|323 QUESTIONS WITH CORRECT ASWERS GARDED A+

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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 its 1-norm is squar ... e 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 Correct Answer Step-by-step procedure designed to carry out a task. Analysis of Variance/ANOVA Correct Answer Statistical method for dividing the variation in observations among different sources. Approximate dynamic program Correct Answer Dynamic programming model where the value functions are approximated. Arc Correct Answer Connection between two nodes/vertices in a network. In a network model, there is a variable for each arc, equal to the amount of flow on the arc, and (optionally) a capacity constraint on the arc's flow. Also called an edge. [Show More]

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