Lifeng Liu
4 papers · 2024–2026 · 2 venues · across top CS/AI venues
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Achievements
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Conference Polyglot · Bronze
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Interdisciplinary Bridge · Bronze
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Taxonomy Completionist
(16)
Top co-authors
Research topics
Machine Learning
(4)
Natural Language Processing
(3)
Optimization & Theory
(3)
Artificial Intelligence
(2)
Deep Learning
(2)
Core AI
(2)
Application Areas
(1)
Applications
(1)
Core Methods
(1)
Generation
(1)
Learning Types · Deep Learning
(1)
Learning Types · Machine Learning
(1)
Models
(1)
Resources & Methods
(1)
Keywords
language model
(2)
knowledge editing
(1)
preference alignment
(1)
preference optimization
(1)
model editing
(1)
reinforcement learning from human feedback
(1)
hierarchical reinforcement learning
(1)
knowledge refinement
(1)
diffusion model
(1)
schrödinger bridge
(1)
human preference alignment
(1)
retrieval-augmented generation
(1)
robustness evaluation
(1)
power spectral density
(1)
signal denoising
(1)
knowledge recall
(1)
multi-source retrieval
(1)
deep search
(1)
implicit reward modeling
(1)
multi-dimensional preference
(1)
Papers
Frequency-Dependent Scheduled Schrödinger Bridge for Underwater Acoustic Signal Denoising
AAAI 2026
HierSearch: A Hierarchical Enterprise Deep Search Framework Integrating Local and Web Searches
AAAI 2026
Sequential Preference Optimization: Multi-Dimensional Preference Alignment with Implicit Reward Modeling
AAAI 2025
On the Robustness of Editing Large Language Models
EMNLP 2024