Time Series Evaluation Metric Selection

Problem Statement

A model is designed for two-time series: T1 = [10, 0, 0, 20, 30], T2 = [100000, 200000, 300000, 400000, 500000]. Which is the right evaluation metric for the task to compare model performance on the two-time series? Note: T1 and T2 are the observed values for each time series. RMSE MAE MAPE MASE A user logs in to the online portal of a company for the first time and is asked to optionally provide their date of birth, gender, and ethnicity. What type of mechanism is the company using internally to recommend its products/services to the user? Collaborative Filtering Content-Based Filtering Knowledge-Based Filtering Hybrid Filtering For which of the given models can reinforcement learning NOT be used? Game Playing Robotics Control Image Classification Autonomous Driving Refer to the given text and its base form. Which pre-processing technique will convert every word from the text to its lexicographically correct base form? Text: My car crashed easily! He saw me eating daily. Base Form: My