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Sambit Sahu

4 accepted papers

2026

Critique-Guided Distillation for Robust Reasoning via Refinement

ICML 2026poster

Supervised fine-tuning with expert demonstrations often produces models that imitate outputs without internalizing the reasoning processes needed for robust generalization. While critique-based approaches show promise, training models to generate critiques directly, such as Critique Fine-Tuning (CFT…

Cited by 0SourceScholar
2025

Dense Backpropagation Improves Training for Sparse Mixture-of-Experts

NeurIPS 2025poster

Mixture of Experts (MoE) pretraining is more scalable than dense Transformer pretraining, because MoEs learn to route inputs to a sparse set of their feedforward parameters. However, this means that MoEs only receive a sparse backward update, leading to training instability and suboptimal performanc…

Cited by 0SourcecodeScholar
2025

RainbowPO: A Unified Framework for Combining Improvements in Preference Optimization

ICLR 2025poster

Recently, numerous preference optimization algorithms have been introduced as extensions to the Direct Preference Optimization (DPO) family. While these methods have successfully aligned models with human preferences, there is a lack of understanding regarding the contributions of their additional c…

Cited by 5SourcePDFScholar
2025

T1: A Tool-Oriented Conversational Dataset for Multi-Turn Agentic Planning

NeurIPS 2025poster

Large Language Models (LLMs) have demonstrated impressive capabilities as intelligent agents capable of solving complex problems. However, effective planning in scenarios involving dependencies between API or tool calls-particularly in multi-turn conversations-remains a significant challenge. To add…

Cited by 0SourceScholar