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Dilek Hakkani-Tur

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#artificial intelligence Preprint Sep 2026

Understanding the Synergy between SFT, RLVR, and OPD in LLM Post-Training

Modern LLM post-training composes supervised fine-tuning (SFT), reinforcement learning with verifiable rewards (RLVR), and on-policy distillation (OPD) into multi-stage pipelines, yet these stages are typically designed and evaluated in isolation. We show that this composition is consequential: a stage that improves th...

Emre Can Acikgoz, Yang Li, Z. Liu et al. · 0 citations
#artificial intelligence Preprint Sep 2026

When Successful Strategies Fail: Adaptation to Environmental Novelty in Terminal Agents

This work introduces AGNI, an automated pipeline that extracts trajectory-relevant assumptions, injects targeted environmental changes, and validates that the resulting novel tasks remain solvable and highlights a gap between task competence and adaptive capability and motivate environmental variation as a core dimensi...

Janvijay Singh, Vaishnavi Shrivastava, Dilek Hakkani-Tur et al. · 0 citations

ReasoningFlow: Discourse Structures for Understanding LLM Reasoning Traces

ReasoningFlow is introduced, a framework that captures the discourse structures of LRM reasoning traces into fine-grained directed acyclic graphs (DAGs) and reveals diverse fine-grained reasoning behaviors that can be used for better reasoning trace monitorability.

Jinu Lee, Shivam Agarwal, Amruta Parulekar et al. · 6 citations
Preprint Aug 2026

Hear2Act: Benchmarking When Prosody Should Change What an Assistant Does

Hear2Act is introduced, a unified evaluation protocol for text and spoken assistants with 480 persona-grounded scenarios, hidden user concerns, and objectively verifiable outcomes that show that prosody matters when lexical evidence is insufficient, and that audio-capable LLMs can recover information from speech but do...

Xin-Yi Liu, H. Nayyeri, Dilek Hakkani-Tur et al. · 3 citations · ⚡1
Jun 2026

GBC: Gradient-Based Connections for Optimizing Multi-Agent Systems

Gradient-Based Connections (GBC) is proposed, an approach for fine-grained attribution and optimization of multi-agent systems that improves multi-agent performance and outperforms strong single-agent and multi-agent baselines and higher attribution quality is associated with greater optimization effectiveness.

Xiaocheng Yang, A. Alrabah, Dilek Hakkani-Tur et al. · 0 citations

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