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Hehuan Liu

dblp:297/1108 · DBLP profile ↗
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2ranked-venue papers
0as first author
2since 2021 · last 2025
0009-0004-1860-5494ORCID · reported

Domains — the database's venue-derived domains; a paper can count in several

Artificial intelligence and machine learning · 1 · 1 since 2021Databases, data management, data science and information retrieval · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Language models and text generation · 91% Trustworthy machine learning · 9%
Databases, data mining, and information retrieval
1 paper
Recommender systems · 100%

Topics — the 8 heaviest of 8, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Natural language and speech › Language models and text generation › preference optimization
iterative preference optimization
0.912025
Uncertainty-Aware Iterative Preference Optimization for Enhanced LLM Reasoning · ACL (1) 2025
Natural language and speech › Language models and text generation
large language model reasoning
0.912025
Uncertainty-Aware Iterative Preference Optimization for Enhanced LLM Reasoning · ACL (1) 2025
Natural language and speech › Language models and text generation
preference optimization
0.912025
Uncertainty-Aware Iterative Preference Optimization for Enhanced LLM Reasoning · ACL (1) 2025
Recommender systems › cold-start recommendation
meta-learning for recommendation
0.512021
Meta-Learned Specific Scenario Interest Network for User Preference Prediction · SIGIR 2021
Recommender systems › context-aware recommendation
scenario-aware recommendation
0.512021
Meta-Learned Specific Scenario Interest Network for User Preference Prediction · SIGIR 2021
Recommender systems
sequential recommendation
0.512021
Meta-Learned Specific Scenario Interest Network for User Preference Prediction · SIGIR 2021
Recommender systems › user modeling
user preference estimation
0.512021
Meta-Learned Specific Scenario Interest Network for User Preference Prediction · SIGIR 2021
Machine learning › Trustworthy machine learning
uncertainty estimation
0.312025
Uncertainty-Aware Iterative Preference Optimization for Enhanced LLM Reasoning · ACL (1) 2025

Methods — techniques the papers use, named apart from their topics

uncertainty-aware preference optimization · 0.9meta-learning · 0.5
YearPublicationVenuePosition
2025 Uncertainty-Aware Iterative Preference Optimization for Enhanced LLM Reasoning
abstract
Lei Li, Hehuan Liu, Yaxin Zhou, ZhaoYang Gui, Xudong Weng, Yi Yuan, Zheng Wei, Zang Li. Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2025.
Hehuan Liu, Yaxin Zhou, ZhaoYang Gui, Xudong Weng, Zang Li
ACL (1)2
2021 Meta-Learned Specific Scenario Interest Network for User Preference Prediction
abstract
User preference prediction is a task of learning user interests through user-item interactions. Most existing studies capture user interests based on historical behaviors without considering specific scenario information. However, the users may have special interests in these specific scenarios and sometimes user historical behaviors are limited. In this paper, we propose a Meta-Learned Specific Scenario Interest Network (Meta-SSIN) to predict user preference of target item by capturing specific scenario interests. Meta-SSIN uses multiple independent meta-learning modules to model historical behaviors in each scenario. The independent module can capture special interests based on limited behaviors. Experimental results on three datasets show that Meta-SSIN outperforms compared state-of-the-art methods.
Hehuan Liu, Si Li 0001, Jun Guo 0002
SIGIR3