Zexu Sun
8 papers · 2023–2026 · 6 conferences · across top CS/AI conferences
Achievements
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πΊοΈ Taxonomy Completionist (15) π Conference Polyglot (5) π Cross-Pollinator (11) π§ Keyword Pioneer π Renaissance Researcher (5)
π
Interdisciplinary Bridge
π
Grand Slam
Conferences
ACL (2)
ICML (2)
AAAI (1)
EMNLP (1)
ICLR (1)
NIPS (1)
Top co-authors
Keywords
large language model
(2)
sample efficiency
(1)
mathematical reasoning
(1)
direct preference optimization
(1)
intent classification
(1)
knowledge base
(1)
hierarchical decomposition
(1)
information gain
(1)
variational autoencoder
(1)
counterfactual reasoning
(1)
robotics manipulation
(1)
relative accuracy
(1)
intent recognition
(1)
dialogue system
(1)
multi-step reasoning
(1)
multi-objective alignment
(1)
user intent understanding
(1)
deliberative agent
(1)
preference score
(1)
offline imitation learning
(1)
Papers
Beyond Step Pruning: Information Theory Based Step-level Optimization for Self-Refining Large Language Models
AAAI 2026
Learning from Cognition: Enhancing RL Efficiency for LLM Reasoning via Hierarchical Metacognitive Decomposition and Refinement
ACL 2026
Uncertainty and Influence aware Reward Model Refinement for Reinforcement Learning from Human Feedback
ICLR 2025
Rethinking Causal Ranking: A Balanced Perspective on Uplift Model Evaluation
ICML 2025
Invariant Deep Uplift Modeling for Incentive Assignment in Online Marketing via Probability of Necessity and Sufficiency
ICML 2025
KAPA: A Deliberative Agent Framework with Tree-Structured Knowledge Base for Multi-Domain User Intent Understanding
ACL 2025
Controllable Preference Optimization: Toward Controllable Multi-Objective Alignment
EMNLP 2024
Offline Imitation Learning with Variational Counterfactual Reasoning
NIPS 2023