6501 - Final Exam 2024/2025 Already Graded A+

Can a distribution not be memoryless and still be exponential {Ans: no}what are continuous-time simulations? {Ans: When changes happen continuously. Example: chemical processes, propagations}what is exploitation {Ans: we're focused on getting immediate value; in this example, to show the add that seems to be doing best so far, because it seems to be most likely to be clicked.}what is a key difference between stepwise regresson and lasso regression {Ans: If the data is not scaled, the coefficients can have artificially different orders of magnitude, which means they'll have unbalanced effects on the lasso constraint.}What is the objective function in k-means {Ans: minimize total distance from data points to their cluster centers}are convex optimization problems guaranteed to find optimal solution {Ans: yes}