Search Results for author: Chonggang Song

Found 5 papers, 3 papers with code

KELLMRec: Knowledge-Enhanced Large Language Models for Recommendation

no code implementations11 Mar 2024 Weiqing Luo, Chonggang Song, Lingling Yi, Gong Cheng

The utilization of semantic information is an important research problem in the field of recommender systems, which aims to complement the missing parts of mainstream ID-based approaches.

Contrastive Learning Hallucination +1

Addressing Confounding Feature Issue for Causal Recommendation

1 code implementation13 May 2022 Xiangnan He, Yang Zhang, Fuli Feng, Chonggang Song, Lingling Yi, Guohui Ling, Yongdong Zhang

We demonstrate DCR on the backbone model of neural factorization machine (NFM), showing that DCR leads to more accurate prediction of user preference with small inference time cost.

Recommendation Systems

Causal Intervention for Leveraging Popularity Bias in Recommendation

1 code implementation13 May 2021 Yang Zhang, Fuli Feng, Xiangnan He, Tianxin Wei, Chonggang Song, Guohui Ling, Yongdong Zhang

This work studies an unexplored problem in recommendation -- how to leverage popularity bias to improve the recommendation accuracy.

Collaborative Filtering Recommendation Systems

CatGCN: Graph Convolutional Networks with Categorical Node Features

1 code implementation11 Sep 2020 Weijian Chen, Fuli Feng, Qifan Wang, Xiangnan He, Chonggang Song, Guohui Ling, Yongdong Zhang

In this paper, we propose a new GCN model named CatGCN, which is tailored for graph learning when the node features are categorical.

Graph Learning Node Classification +1

LoCEC: Local Community-based Edge Classification in Large Online Social Networks

no code implementations11 Feb 2020 Chonggang Song, Qian Lin, Guohui Ling, Zongyi Zhang, Hongzhao Chen, Jun Liao, Chuan Chen

To tackle the challenges, we propose a Local Community-based Edge Classification (LoCEC) framework that classifies user relationships in a social network into real-world social connection types.

Classification Edge Classification +2

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