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Write down: input (a question), output (top 3 FAQ answers with scores), users (website help box). Score: Recall@1 and Recall@3 (is the correct FAQ in the top 1 / top 3?) and MRR (how high the correct one is ranked). Note the difference from Project 1: no training needed, and adding a new FAQ needs no retraining.
Builds on: 2.1 Understand the problem