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Parallel Test-Time Scaling with Multi-Sequence Verifiers

arXiv – CS AI|Yegon Kim, Seungyoo Lee, Chaeyun Jang, Hyungi Lee, Juho Lee|
🤖AI Summary

Researchers introduce Multi-Sequence Verifier (MSV), a new technique that improves large language model performance by jointly processing multiple candidate solutions rather than scoring them individually. The system achieves better accuracy while reducing inference latency by approximately half through improved calibration and early-stopping strategies.

Key Takeaways
  • Multi-Sequence Verifier (MSV) is the first verifier designed to jointly process all candidate solutions and model their interactions.
  • MSV achieves improved calibration which directly enhances best-of-N selection performance in language models.
  • The streaming MSV variant enables a novel early-stopping framework that fully leverages parallel decoding.
  • The system can achieve target accuracy with around half the latency compared to isolated solution scoring methods.
  • The approach addresses key bottlenecks in parallel test-time scaling: solution selection accuracy and high inference latency.
Read Original →via arXiv – CS AI
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