Search Results for author: Bowei He

Found 30 papers, 16 papers with code

Counterfactual Multi-player Bandits for Explainable Recommendation Diversification

1 code implementation27 May 2025 Yansen Zhang, Bowei He, Xiaokun Zhang, Haolun Wu, Zexu Sun, Chen Ma

Existing recommender systems tend to prioritize items closely aligned with users' historical interactions, inevitably trapping users in the dilemma of ``filter bubble''.

counterfactual Diversity +2

Sens-Merging: Sensitivity-Guided Parameter Balancing for Merging Large Language Models

no code implementations18 Feb 2025 Shuqi Liu, Han Wu, Bowei He, Xiongwei Han, Mingxuan Yuan, Linqi Song

Notably, when combined with existing merging techniques, our method enables merged models to outperform specialized fine-tuned models, particularly in code generation tasks.

Code Generation General Knowledge +1

OPTISHEAR: Towards Efficient and Adaptive Pruning of Large Language Models via Evolutionary Optimization

no code implementations15 Feb 2025 Shuqi Liu, Bowei He, Han Wu, Linqi Song

Post-training pruning has emerged as a crucial optimization technique as large language models (LLMs) continue to grow rapidly.

Model Compression

1bit-Merging: Dynamic Quantized Merging for Large Language Models

no code implementations15 Feb 2025 Shuqi Liu, Han Wu, Bowei He, Zehua Liu, Xiongwei Han, Mingxuan Yuan, Linqi Song

Recent advances in large language models have led to specialized models excelling in specific domains, creating a need for efficient model merging techniques.

Code Generation Math +1

Certifying Language Model Robustness with Fuzzed Randomized Smoothing: An Efficient Defense Against Backdoor Attacks

no code implementations9 Feb 2025 Bowei He, Lihao Yin, Hui-Ling Zhen, Jianping Zhang, Lanqing Hong, Mingxuan Yuan, Chen Ma

The widespread deployment of pre-trained language models (PLMs) has exposed them to textual backdoor attacks, particularly those planted during the pre-training stage.

Language Modeling Language Modelling

NILE: Internal Consistency Alignment in Large Language Models

no code implementations21 Dec 2024 Minda Hu, Qiyuan Zhang, YuFei Wang, Bowei He, Hongru Wang, Jingyan Zhou, Liangyou Li, Yasheng Wang, Chen Ma, Irwin King

However, existing IFT datasets often contain knowledge that is inconsistent with LLMs' internal knowledge learned from the pre-training phase, which can greatly affect the efficacy of IFT.

Interpretable Triplet Importance for Personalized Ranking

1 code implementation28 Jul 2024 Bowei He, Chen Ma

Personalized item ranking has been a crucial component contributing to the performance of recommender systems.

Graph Neural Network Triplet

Mitigating Large Language Model Hallucination with Faithful Finetuning

no code implementations17 Jun 2024 Minda Hu, Bowei He, YuFei Wang, Liangyou Li, Chen Ma, Irwin King

Large language models (LLMs) have demonstrated remarkable performance on various natural language processing tasks.

Hallucination Language Modeling +5

Bi-Chainer: Automated Large Language Models Reasoning with Bidirectional Chaining

no code implementations5 Jun 2024 Shuqi Liu, Bowei He, Linqi Song

Large Language Models (LLMs) have shown human-like reasoning abilities but still face challenges in solving complex logical problems.

Logical Reasoning

Privacy in LLM-based Recommendation: Recent Advances and Future Directions

no code implementations3 Jun 2024 Sichun Luo, Wei Shao, Yuxuan Yao, Jian Xu, Mingyang Liu, Qintong Li, Bowei He, Maolin Wang, Guanzhi Deng, Hanxu Hou, Xinyi Zhang, Linqi Song

Nowadays, large language models (LLMs) have been integrated with conventional recommendation models to improve recommendation performance.

Rankability-enhanced Revenue Uplift Modeling Framework for Online Marketing

1 code implementation24 May 2024 Bowei He, Yunpeng Weng, Xing Tang, Ziqiang Cui, Zexu Sun, Liang Chen, Xiuqiang He, Chen Ma

Uplift modeling has been widely employed in online marketing by predicting the response difference between the treatment and control groups, so as to identify the sensitive individuals toward interventions like coupons or discounts.

Marketing

Diffusion-based Contrastive Learning for Sequential Recommendation

1 code implementation15 May 2024 Ziqiang Cui, Haolun Wu, Bowei He, Ji Cheng, Chen Ma

Most existing approaches generate augmented views of the same user sequence through random augmentation and subsequently maximize their agreement in the representation space.

Contrastive Learning Sequential Recommendation

Integrating Large Language Models into Recommendation via Mutual Augmentation and Adaptive Aggregation

no code implementations25 Jan 2024 Sichun Luo, Yuxuan Yao, Bowei He, Yinya Huang, Aojun Zhou, Xinyi Zhang, Yuanzhang Xiao, Mingjie Zhan, Linqi Song

Conventional recommendation methods have achieved notable advancements by harnessing collaborative or sequential information from user behavior.

Data Augmentation

Treatment-Aware Hyperbolic Representation Learning for Causal Effect Estimation with Social Networks

1 code implementation12 Jan 2024 Ziqiang Cui, Xing Tang, Yang Qiao, Bowei He, Liang Chen, Xiuqiang He, Chen Ma

Firstly, TAHyper employs the hyperbolic space to encode the social networks, thereby effectively reducing the distortion of confounder representation caused by Euclidean embeddings.

Representation Learning

RecRanker: Instruction Tuning Large Language Model as Ranker for Top-k Recommendation

1 code implementation26 Dec 2023 Sichun Luo, Bowei He, Haohan Zhao, Wei Shao, Yanlin Qi, Yinya Huang, Aojun Zhou, Yuxuan Yao, Zongpeng Li, Yuanzhang Xiao, Mingjie Zhan, Linqi Song

Large Language Models (LLMs) have demonstrated remarkable capabilities and have been extensively deployed across various domains, including recommender systems.

In-Context Learning Language Modeling +4

Robustness-enhanced Uplift Modeling with Adversarial Feature Desensitization

no code implementations7 Oct 2023 Zexu Sun, Bowei He, Ming Ma, Jiakai Tang, Yuchen Wang, Chen Ma, Dugang Liu

Specifically, our RUAD can more effectively alleviate the feature sensitivity of the uplift model through two customized modules, including a feature selection module with joint multi-label modeling to identify a key subset from the input features and an adversarial feature desensitization module using adversarial training and soft interpolation operations to enhance the robustness of the model against this selected subset of features.

feature selection Marketing

Less is More: Towards Efficient Few-shot 3D Semantic Segmentation via Training-free Networks

1 code implementation24 Aug 2023 Xiangyang Zhu, Renrui Zhang, Bowei He, Ziyu Guo, Jiaming Liu, Hao Dong, Peng Gao

However, the prior pre-training stage not only introduces excessive time overhead, but also incurs a significant domain gap on `unseen' classes.

3D Semantic Segmentation Few-shot 3D semantic segmentation +1

Dynamic Embedding Size Search with Minimum Regret for Streaming Recommender System

no code implementations15 Aug 2023 Bowei He, Xu He, Renrui Zhang, Yingxue Zhang, Ruiming Tang, Chen Ma

The high-throughput data requires the model to be updated in a timely manner for capturing the user interest dynamics, which leads to the emergence of streaming recommender systems.

Recommendation Systems

Mutually Guided Few-shot Learning for Relational Triple Extraction

1 code implementation23 Jun 2023 Chengmei Yang, Shuai Jiang, Bowei He, Chen Ma, Lianghua He

Specifically, our method consists of an entity-guided relation proto-decoder to classify the relations firstly and a relation-guided entity proto-decoder to extract entities based on the classified relations.

Cross-Domain Few-Shot Decoder +3

Sim2Rec: A Simulator-based Decision-making Approach to Optimize Real-World Long-term User Engagement in Sequential Recommender Systems

1 code implementation3 May 2023 Xiong-Hui Chen, Bowei He, Yang Yu, Qingyang Li, Zhiwei Qin, Wenjie Shang, Jieping Ye, Chen Ma

However, building a user simulator with no reality-gap, i. e., can predict user's feedback exactly, is unrealistic because the users' reaction patterns are complex and historical logs for each user are limited, which might mislead the simulator-based recommendation policy.

Decision Making Recommendation Systems +1

Not All Features Matter: Enhancing Few-shot CLIP with Adaptive Prior Refinement

1 code implementation ICCV 2023 Xiangyang Zhu, Renrui Zhang, Bowei He, Aojun Zhou, Dong Wang, Bin Zhao, Peng Gao

The popularity of Contrastive Language-Image Pre-training (CLIP) has propelled its application to diverse downstream vision tasks.

All Computational Efficiency +1

Dynamically Expandable Graph Convolution for Streaming Recommendation

1 code implementation21 Mar 2023 Bowei He, Xu He, Yingxue Zhang, Ruiming Tang, Chen Ma

Personalized recommender systems have been widely studied and deployed to reduce information overload and satisfy users' diverse needs.

Graph Learning Recommendation Systems

Towards Skilled Population Curriculum for Multi-Agent Reinforcement Learning

no code implementations7 Feb 2023 Rundong Wang, Longtao Zheng, Wei Qiu, Bowei He, Bo An, Zinovi Rabinovich, Yujing Hu, Yingfeng Chen, Tangjie Lv, Changjie Fan

Despite its success, ACL's applicability is limited by (1) the lack of a general student framework for dealing with the varying number of agents across tasks and the sparse reward problem, and (2) the non-stationarity of the teacher's task due to ever-changing student strategies.

Multi-agent Reinforcement Learning reinforcement-learning +2

Result Diversification in Search and Recommendation: A Survey

1 code implementation29 Dec 2022 Haolun Wu, Yansen Zhang, Chen Ma, Fuyuan Lyu, Bowei He, Bhaskar Mitra, Xue Liu

Diversifying return results is an important research topic in retrieval systems in order to satisfy both the various interests of customers and the equal market exposure of providers.

Diversity Retrieval +1

PointCLIP V2: Prompting CLIP and GPT for Powerful 3D Open-world Learning

2 code implementations ICCV 2023 Xiangyang Zhu, Renrui Zhang, Bowei He, Ziyu Guo, Ziyao Zeng, Zipeng Qin, Shanghang Zhang, Peng Gao

In this paper, we first collaborate CLIP and GPT to be a unified 3D open-world learner, named as PointCLIP V2, which fully unleashes their potential for zero-shot 3D classification, segmentation, and detection.

3D Classification 3D Object Detection +11

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