Jeffrey Chan

2026

Diversity-Augmented Negative Sampling for Implicit Collaborative Filtering.

Yueqing Xuan|Kacper Sokol|Mark Sanderson|Jeffrey Chan

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.

2025

Temporal-Aware User Behaviour Simulation with Large Language Models for Recommender Systems.

Xinye Wanyan|Danula Hettiachchi|Chenglong Ma|Ziqi Xu|Jeffrey Chan

Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

Evaluating and Addressing Fairness Across User Groups in Negative Sampling for Recommender Systems.

Yueqing Xuan|Kacper Sokol|Mark Sanderson|Jeffrey Chan

Proceedings of the 34th ACM International Conference on Information and Knowledge Management, CIKM 2025, Seoul, Republic of Korea, November 10-14, 2025

PUB: An LLM-Enhanced Personality-Driven User Behaviour Simulator for Recommender System Evaluation.

Chenglong Ma|Ziqi Xu|Yongli Ren|Danula Hettiachchi|Jeffrey Chan

Proceedings of the 48th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2025, Padua, Italy, July 13-18, 2025

Towards Better Evaluation of Recommendation Algorithms with Bi-directional Item Response Theory.

Ziqi Xu|Chenglong Ma|Yongli Ren|Jeffrey Chan|Wei Shao|Feng Xia

Companion Proceedings of the ACM on Web Conference 2025, WWW 2025, Sydney, NSW, Australia, 28 April 2025 - 2 May 2025

2019

Irony detection via sentiment-based transfer learning.

Shiwei Zhang|Xiuzhen Zhang|Jeffrey Chan|Paolo Rosso

Information Processing and Management 2019 Volume 56 Issue 5

2018

Travel Itinerary Recommendations with Must-see Points-of-Interest.

Kendall Taylor|Kwan Hui Lim|Jeffrey Chan

Companion Proceedings of the The Web Conference 2018, WWW 2018, Lyon , France, April 23-27, 2018

2017

A Word-Character Convolutional Neural Network for Language-Agnostic Twitter Sentiment Analysis.

Shiwei Zhang|Xiuzhen Zhang|Jeffrey Chan

Proceedings of the 22nd Australasian Document Computing Symposium, ADCS 2017, Brisbane, QLD, Australia, December 7-8, 2017

Personalized Itinerary Recommendation with Queuing Time Awareness.

Kwan Hui Lim|Jeffrey Chan|Shanika Karunasekera|Christopher Leckie

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

Improving Personalized Trip Recommendation by Avoiding Crowds.

Xiaoting Wang|Christopher Leckie|Jeffrey Chan|Kwan Hui Lim|Tharshan Vaithianathan

Proceedings of the 25th ACM International Conference on Information and Knowledge Management, CIKM 2016, Indianapolis, IN, USA, October 24-28, 2016

2015

Detecting Location-Centric Communities Using Social-Spatial Links with Temporal Constraints.

Kwan Hui Lim|Jeffrey Chan|Christopher Leckie|Shanika Karunasekera

Advances in Information Retrieval - 37th European Conference on IR Research, ECIR 2015, Vienna, Austria, March 29 - April 2, 2015. Proceedings

2013

A time decoupling approach for studying forum dynamics.

Andrey Kan|Jeffrey Chan|Conor Hayes|Bernie Hogan|James Bailey|Christopher Leckie

World Wide Web (WWW) 2013 Volume 16 Issue 5-6

Discovering latent blockmodels in sparse and noisy graphs using non-negative matrix factorisation.

Jeffrey Chan|Wei Liu|Andrey Kan|Christopher Leckie|James Bailey|Kotagiri Ramamohanarao

22nd ACM International Conference on Information and Knowledge Management, CIKM'13, San Francisco, CA, USA, October 27 - November 1, 2013

2012

Utilizing common substructures to speedup tensor factorization for mining dynamic graphs.

Wei Liu|Jeffrey Chan|James Bailey|Christopher Leckie|Kotagiri Ramamohanarao

21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012

On compressing weighted time-evolving graphs.

Wei Liu|Andrey Kan|Jeffrey Chan|James Bailey|Christopher Leckie|Jian Pei|Kotagiri Ramamohanarao

21st ACM International Conference on Information and Knowledge Management, CIKM'12, Maui, HI, USA, October 29 - November 02, 2012