← Back to PeopleXCResearcherXilun ChenResearch Scientist at Meta AILinkedInWebsiteA researcher with interests in Natural Language Processing and Machine Learning.1Mentions1Articles1OutletsCompanies CoveredMeta AI1ArticlesMost recent firstMentioned InReferenced in coverageTwo-Level Meta-Rubrics for Evaluating Open-Ended Generation: GAMUT, a Benchmark for Factual CompletenessMeta AIpositiveJul 26, 2026“First author on GAMUT benchmark paper for evaluating factual completeness in long-form generation.”