10 lessons · take it step by step
AI Reliability & Hallucinations
Diagnose retrieval and generation failures, verify evidence and measure the tradeoff between answers and abstention.
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Hallucinations & Failure Taxonomy
25–40 minA wrong answer may arise from missing knowledge, a retrieval miss, malformed output, a failed tool or an unsupported generated claim.
Reliability Evaluation & Metrics
25–40 minAnswer coverage is answered cases divided by relevant cases; false refusal is abstention on cases annotated as answerable.
Grounding & Claim-Level Verification
25–40 minSplit a response into checkable claims and bind each to evidence.
Retrieval Failure Analysis
25–40 minSeparate a knowledge gap from a ranking miss.
Abstention & Uncertainty
25–40 minUse ABSTAIN when authorized evidence is insufficient, ask a clarifying question when ambiguity can be resolved, and route to a human when the task exceeds the product scope.
Verification Tools & Structured Answers
25–40 minUse arithmetic for numbers, compilation or pinned API documentation for code, and authorized reference data for facts.
Conflicting & Stale Evidence
25–40 minTwo documents can disagree because they describe different versions or effective dates.
LLM Judge Calibration & Bias
25–40 minAn automated judge can be sensitive to answer order, verbosity, style and injected evaluator instructions.
Long Context & Multilingual Reliability
25–40 minLong inputs can truncate relevant evidence or distract the generator with unrelated content.
Reliability User Experience
25–40 minA visible citation link can help inspection, but a polished badge can also encourage unjustified trust.