~/talk

MoCE: A Mixture-of-Context Aware Experts Framework for Troubleshooting...

Talkat NSDI '26 · 2026-05-04..05-06· [ai-assisted-development, machine-learning]
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name:Hui Zhang
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MoCE implements a mixture-of-context-aware experts system where each expert is expressed as a dataflow DAG of SQL, stateful, and statistical operators; a library of ~30 operators and ~15 experts runs on a Python prototype with a lazy DAG runtime (built on Ray) to merge DAGs and avoid duplicate work. On injected and real incidents across four services MoCE reaches >95% RCA accuracy (versus ~34% for the best single expert), shows 6x speedup at 15 experts, and yields 9/10 verified findings in a week-long pilot.

AI-written summary · about

  1. 0:00MoCE framework intro
  2. 1:01Internet failure costs
  3. 2:49RCA challenges in large systems
  4. 4:34Systems approach to RCA
  5. 5:16MoCE core ideas
  6. 6:39Context-aware experts
  7. 9:06Building experts with libraries
  8. 11:58Evolving operator library
  9. 12:18Lazy DAG runtime
  10. 13:00MoCE end-to-end architecture
  11. 14:24Implementation status
  12. 14:46Evaluation on failures
  13. 15:49Pilot study results
  14. 16:34Scalability comparison
  15. 17:16Conclusion and future
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