Yeon-Chang Lee

2026

Retracing and Restoring: Chronological Context Preservation for Effective Dynamic Recommendation.

Min-Jeong Kim|Jiwon Son|Yeon-Chang Lee|Sang-Wook Kim

Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

Improving the Accuracy of Community Detection on Signed Networks via Community Refinement and Contrastive Learning.

Hyunuk Shin|Hojin Kim|Chanyoung Lee|Yeon-Chang Lee|David Yoon Suk Kang

Proceedings of the ACM Web Conference 2026, WWW 2026, Dubai, United Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled for June 29 - July 3, 2026.

2024

PolarDSN: An Inductive Approach to Learning the Evolution of Network Polarization in Dynamic Signed Networks.

Min-Jeong Kim|Yeon-Chang Lee|Sang-Wook Kim

Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024

Towards Fair Graph Anomaly Detection: Problem, Benchmark Datasets, and Evaluation.

Neng Kai Nigel Neo|Yeon-Chang Lee|Yiqiao Jin|Sang-Wook Kim|Srijan Kumar

Proceedings of the 33rd ACM International Conference on Information and Knowledge Management, CIKM 2024, Boise, ID, USA, October 21-25, 2024

2023

Representation Learning in Continuous-Time Dynamic Signed Networks.

Kartik Sharma|Mohit Raghavendra|Yeon-Chang Lee|Anand Kumar M|Srijan Kumar

Proceedings of the 32nd ACM International Conference on Information and Knowledge Management, CIKM 2023, Birmingham, United Kingdom, October 21-25, 2023

TrustSGCN: Learning Trustworthiness on Edge Signs for Effective Signed Graph Convolutional Networks.

Min-Jeong Kim|Yeon-Chang Lee|Sang-Wook Kim

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

Disentangling Degree-related Biases and Interest for Out-of-Distribution Generalized Directed Network Embedding.

Hyunsik Yoo|Yeon-Chang Lee|Kijung Shin|Sang-Wook Kim

Proceedings of the ACM Web Conference 2023, WWW 2023, Austin, TX, USA, 30 April 2023 - 4 May 2023

2022

Is It Enough Just Looking at the Title?: Leveraging Body Text To Enrich Title Words Towards Accurate News Recommendation.

Taeho Kim|Yungi Kim|Yeon-Chang Lee|Won-Yong Shin|Sang-Wook Kim

Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

MARIO: Modality-Aware Attention and Modality-Preserving Decoders for Multimedia Recommendation.

Taeri Kim|Yeon-Chang Lee|Kijung Shin|Sang-Wook Kim

Proceedings of the 31st ACM International Conference on Information & Knowledge Management, Atlanta, GA, USA, October 17-21, 2022

Linear, or Non-Linear, That is the Question!

Taeyong Kong|Taeri Kim|Jinsung Jeon|Jeongwhan Choi|Yeon-Chang Lee|Noseong Park|Sang-Wook Kim

WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

Directed Network Embedding with Virtual Negative Edges.

Hyunsik Yoo|Yeon-Chang Lee|Kijung Shin|Sang-Wook Kim

WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

2021

Look Before You Leap: Confirming Edge Signs in Random Walk with Restart for Personalized Node Ranking in Signed Networks.

Wonchang Lee|Yeon-Chang Lee|Dongwon Lee|Sang-Wook Kim

SIGIR '21: The 44th International ACM SIGIR Conference on Research and Development in Information Retrieval, Virtual Event, Canada, July 11-15, 2021

2020

Are Negative Links Really Beneficial to Network Embedding?: In-Depth Analysis and Interesting Results.

Yeon-Chang Lee|Nayoun Seo|Sang-Wook Kim

CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

ASiNE: Adversarial Signed Network Embedding.

Yeon-Chang Lee|Nayoun Seo|Kyungsik Han|Sang-Wook Kim

Proceedings of the 43rd International ACM SIGIR conference on research and development in Information Retrieval, SIGIR 2020, Virtual Event, China, July 25-30, 2020