ISYE Guías de estudio, Notas de estudios & Resúmenes

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(|

Factor Based Models Correct Answer-classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model Why limit number of factors in a model? 2 reasons Correct Answer-overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better Classical variable selection approaches Correct Answer-1. Forward selection 2. Backwards elimination 3. Stepwise regress...

Factor Based Models Correct Answer-classification, clustering, regression. Implicitly assumed that we have a lot of factors in the final model Why limit number of factors in a model? 2 reasons Correct Answer-overfitting: when # of factors is close to or larger than # of data points. Model may fit too closely to random effects simplicity: simple models are usually better Classical variable selection approaches Correct Answer-1. Forward selection 2. Backwards elimination 3. Stepwise regress...

Types of classification models Correct Answer-KNN SVM Types of Clustering Models Correct Answer-K-Means Clustering Types of Response Prediction Models Correct Answer-ARIMA CART Exponential Smoothing Linear Regression Logistic Regression Random Forest Types of Validation Method Correct Answer-Cross Validation Types of Variation Estimate Models Correct Answer-GARCH Models that use Time Series Data Correct Answer-ARIMA CUSUM GARCH Exponential Smoothing

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Why Industrial Engineering in health care? - correct answer Preventable medical errors are the 3rd leading cause of death in the US What is the Quadruple Aim? - correct answer (1) revolutionize the patient experience (2) improve population health (3) control healthcare costs (4) enhance clinician satisfaction What are the four functional components of the health care system? - correct answer financing insurance delivery payment What are the 10 characteristics that differentiate...

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