AI & Technical question
How would you measure whether Glean's AI answers are accurate and well-cited?
- Glean
- AI & Technical
- Medium
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What this question tests
AI and technical metrics for answer accuracy and citation quality, central to trust in an enterprise AI-answering product.
How to approach it
- Define accuracy concretely: does the answer correctly reflect what the underlying source documents say, without fabricated or misattributed claims.
- Track citation quality: percentage of answers where every claim is backed by a clickable, correct source citation, not just a general reference.
- Add a human evaluation sample: have reviewers periodically score a random set of answers against the source documents for factual correctness.
- Add an implicit signal: track how often users click through to verify a citation, and how often they immediately reformulate the query, which can suggest a poor answer.
- Add explicit feedback: a simple thumbs up or down per answer, aggregated over time to catch drift in accuracy as sources or models change.
- Define success as a minimum accuracy threshold on the human-evaluated sample, tracked continuously, not just at launch.
What a strong answer includes
- Separates accuracy (is the claim true) from citation quality (is the source correctly and specifically attributed) as distinct measurable dimensions.
- Proposes a human evaluation sample, which is necessary since accuracy cannot be fully automated for open-ended answers.
- Uses reformulation rate as a scalable implicit proxy that does not require manual review of every query.
- Treats this as an ongoing monitoring problem, not a one-time launch check, since source data and models change.
- Ties the metric to trust, the core value proposition for an enterprise answer engine.
Common mistakes
- Relying only on explicit user feedback, which is sparse and does not scale to catch drift.
- Treating citation presence alone as sufficient without verifying the citation actually supports the claim.
Likely follow-up questions
- How would you build the human evaluation sample without it becoming a bottleneck?
- How would you detect accuracy drift after a model update?
- What would you do if accuracy dropped for one specific data source?
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Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 1: Foundations: the model and the decisions it forces on you
- Chapter 8: Evals: define good and make the number defensible
- Chapter 6: Agents and agentic architecture