Search Results for author: Guanfeng Liu

Found 23 papers, 8 papers with code

Few-shot Learning on Heterogeneous Graphs: Challenges, Progress, and Prospects

no code implementations10 Mar 2024 Pengfei Ding, Yan Wang, Guanfeng Liu

In this paper, we provide a comprehensive review of existing FLHG methods, covering challenges, research progress, and future prospects.

Few-Shot Learning

Adaptive Hypergraph Network for Trust Prediction

1 code implementation7 Feb 2024 Rongwei Xu, Guanfeng Liu, Yan Wang, Xuyun Zhang, Kai Zheng, Xiaofang Zhou

In this paper, we propose an Adaptive Hypergraph Network for Trust Prediction (AHNTP), a novel approach that improves trust prediction accuracy by using higher-order correlations.

Contrastive Learning Decision Making

Intent Contrastive Learning with Cross Subsequences for Sequential Recommendation

1 code implementation22 Oct 2023 Xiuyuan Qin, Huanhuan Yuan, Pengpeng Zhao, Guanfeng Liu, Fuzhen Zhuang, Victor S. Sheng

In this paper, Intent contrastive learning with Cross Subsequences for sequential Recommendation (ICSRec) is proposed to model users' latent intentions.

Contrastive Learning Data Augmentation +1

Meta-optimized Joint Generative and Contrastive Learning for Sequential Recommendation

no code implementations21 Oct 2023 Yongjing Hao, Pengpeng Zhao, Junhua Fang, Jianfeng Qu, Guanfeng Liu, Fuzhen Zhuang, Victor S. Sheng, Xiaofang Zhou

In this paper, we propose a Meta-optimized Seq2Seq Generator and Contrastive Learning (Meta-SGCL) for sequential recommendation, which applies the meta-optimized two-step training strategy to adaptive generate contrastive views.

Contrastive Learning Sequential Recommendation

Cross-heterogeneity Graph Few-shot Learning

no code implementations10 Aug 2023 Pengfei Ding, Yan Wang, Guanfeng Liu

In recent years, heterogeneous graph few-shot learning has been proposed to address the label sparsity issue in heterogeneous graphs (HGs), which contain various types of nodes and edges.

Few-Shot Learning Informativeness

Snowman: A Million-scale Chinese Commonsense Knowledge Graph Distilled from Foundation Model

no code implementations17 Jun 2023 Jiaan Wang, Jianfeng Qu, Yunlong Liang, Zhixu Li, An Liu, Guanfeng Liu, Xin Zheng

Constructing commonsense knowledge graphs (CKGs) has attracted wide research attention due to its significant importance in cognitive intelligence.

Knowledge Graphs

Contrastive Enhanced Slide Filter Mixer for Sequential Recommendation

1 code implementation7 May 2023 Xinyu Du, Huanhuan Yuan, Pengpeng Zhao, Junhua Fang, Guanfeng Liu, Yanchi Liu, Victor S. Sheng, Xiaofang Zhou

Sequential recommendation (SR) aims to model user preferences by capturing behavior patterns from their item historical interaction data.

Contrastive Learning Sequential Recommendation

Ensemble Modeling with Contrastive Knowledge Distillation for Sequential Recommendation

1 code implementation28 Apr 2023 Hanwen Du, Huanhuan Yuan, Pengpeng Zhao, Fuzhen Zhuang, Guanfeng Liu, Lei Zhao, Victor S. Sheng

Our framework adopts multiple parallel networks as an ensemble of sequence encoders and recommends items based on the output distributions of all these networks.

Attribute Contrastive Learning +3

Sequential Recommendation with Probabilistic Logical Reasoning

1 code implementation22 Apr 2023 Huanhuan Yuan, Pengpeng Zhao, Xuefeng Xian, Guanfeng Liu, Victor S. Sheng, Lei Zhao

To better capture the uncertainty and evolution of user tastes, SR-PLR embeds users and items with a probabilistic method and conducts probabilistic logical reasoning on users' interaction patterns.

Logical Reasoning Sequential Recommendation

Frequency Enhanced Hybrid Attention Network for Sequential Recommendation

1 code implementation18 Apr 2023 Xinyu Du, Huanhuan Yuan, Pengpeng Zhao, Jianfeng Qu, Fuzhen Zhuang, Guanfeng Liu, Victor S. Sheng

However, many recent studies represent that current self-attention based models are low-pass filters and are inadequate to capture high-frequency information.

Contrastive Learning Sequential Recommendation

Meta-optimized Contrastive Learning for Sequential Recommendation

1 code implementation16 Apr 2023 Xiuyuan Qin, Huanhuan Yuan, Pengpeng Zhao, Junhua Fang, Fuzhen Zhuang, Guanfeng Liu, Victor Sheng

By applying both data augmentation and learnable model augmentation operations, this work innovates the standard CL framework by contrasting data and model augmented views for adaptively capturing the informative features hidden in stochastic data augmentation.

Contrastive Learning Data Augmentation +2

DCMT: A Direct Entire-Space Causal Multi-Task Framework for Post-Click Conversion Estimation

no code implementations13 Feb 2023 Feng Zhu, Mingjie Zhong, Xinxing Yang, Longfei Li, Lu Yu, Tiehua Zhang, Jun Zhou, Chaochao Chen, Fei Wu, Guanfeng Liu, Yan Wang

In recommendation scenarios, there are two long-standing challenges, i. e., selection bias and data sparsity, which lead to a significant drop in prediction accuracy for both Click-Through Rate (CTR) and post-click Conversion Rate (CVR) tasks.

counterfactual Multi-Task Learning +1

Few-Shot Semantic Relation Prediction across Heterogeneous Graphs

no code implementations11 Jul 2022 Pengfei Ding, Yan Wang, Guanfeng Liu, Xiaofang Zhou

In real-world scenarios, new semantic relations constantly emerge and they typically appear with only a few labeled data.

Meta-Learning Relation

Quaternion-Based Graph Convolution Network for Recommendation

no code implementations20 Nov 2021 Yaxing Fang, Pengpeng Zhao, Guanfeng Liu, Yanchi Liu, Victor S. Sheng, Lei Zhao, Xiaofang Zhou

Graph Convolution Network (GCN) has been widely applied in recommender systems for its representation learning capability on user and item embeddings.

Recommendation Systems Representation Learning

Edge-Enhanced Global Disentangled Graph Neural Network for Sequential Recommendation

no code implementations20 Nov 2021 Yunyi Li, Pengpeng Zhao, Guanfeng Liu, Yanchi Liu, Victor S. Sheng, Jiajie Xu, Xiaofang Zhou

In this paper, we propose an Edge-Enhanced Global Disentangled Graph Neural Network (EGD-GNN) model to capture the relation information between items for global item representation and local user intention learning.

Sequential Recommendation

A Unified Framework for Cross-Domain and Cross-System Recommendations

no code implementations18 Aug 2021 Feng Zhu, Yan Wang, Jun Zhou, Chaochao Chen, Longfei Li, Guanfeng Liu

Moreover, to avoid negative transfer, we further propose a Personalized training strategy to minimize the embedding difference of common entities between a richer dataset and a sparser dataset, deriving three new models, i. e., GA-DTCDR-P, GA-MTCDR-P, and GA-CDR+CSR-P, for the three scenarios respectively.

Graph Embedding

Cross-Domain Recommendation: Challenges, Progress, and Prospects

no code implementations2 Mar 2021 Feng Zhu, Yan Wang, Chaochao Chen, Jun Zhou, Longfei Li, Guanfeng Liu

To address the long-standing data sparsity problem in recommender systems (RSs), cross-domain recommendation (CDR) has been proposed to leverage the relatively richer information from a richer domain to improve the recommendation performance in a sparser domain.

Recommendation Systems

Survey and Open Problems in Privacy Preserving Knowledge Graph: Merging, Query, Representation, Completion and Applications

no code implementations20 Nov 2020 Chaochao Chen, Jamie Cui, Guanfeng Liu, Jia Wu, Li Wang

In this paper, to fill this gap, we summarize the open problems for privacy preserving KG in data isolation setting and propose possible solutions for them.

Privacy Preserving

A Deep Framework for Cross-Domain and Cross-System Recommendations

no code implementations14 Sep 2020 Feng Zhu, Yan Wang, Chaochao Chen, Guanfeng Liu, Mehmet Orgun, Jia Wu

Therefore, finding an accurate mapping of the latent factors across domains or systems is crucial to enhancing recommendation accuracy.

Recommendation Systems

Leveraging Meta Information in Short Text Aggregation

no code implementations ACL 2019 He Zhao, Lan Du, Guanfeng Liu, Wray Buntine

Short texts such as tweets often contain insufficient word co-occurrence information for training conventional topic models.

Clustering Topic Models

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