Hi everyone,

If a researcher want to evaluate the results and performance of a recommender system, what possible approaches he/she can use?. Can someone categorize these methods and explain its different types in such a way that it could help novice researchers in selecting appropriate evaluation method/metric for assessing the results of their systems. There are many metrics and methods to choose from, is there any classification framework that could help them in choosing the relevant metric for their problem.?

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