activity
20202025
most citedControlVAE: Controllable Variational Autoencoder

50 citations · 148 across the 13 of their papers we have counts for

collaborators

13 papers

cs.CL2025

DocCHA: Towards LLM-Augmented Interactive Online diagnosis System

Xinyi Liu, Dachun Sun, Yi R. Fung +2

Despite the impressive capabilities of Large Language Models (LLMs), existing Conversational Health Agents (CHAs) remain static and brittle, incapable of adaptive multi-turn reason…

cs.SI2025

SCRAG: Social Computing-Based Retrieval Augmented Generation for Community Response Forecasting in Social Media Environments

Dachun Sun, You Lyu, Jinning Li +4

This paper introduces SCRAG, a prediction framework inspired by social computing, designed to forecast community responses to real or hypothetical social media posts. SCRAG can be…

cs.IR2025★ 9 cited

Uncovering Cross-Domain Recommendation Ability of Large Language Models

Xinyi Liu, Ruijie Wang, Dachun Sun +2

Cross-Domain Recommendation (CDR) seeks to enhance item retrieval in low-resource domains by transferring knowledge from high-resource domains. While recent advancements in Large L…

cs.LG2024

Perturbation-based Graph Active Learning for Weakly-Supervised Belief Representation Learning

Dachun Sun, Ruijie Wang, Jinning Li +4

This paper addresses the problem of optimizing the allocation of labeling resources for semi-supervised belief representation learning in social networks. The objective is to strat…

cs.SI2023★ 1 cited

Influence Pathway Discovery on Social Media

Xinyi Liu, Ruijie Wang, Dachun Sun +13

This paper addresses influence pathway discovery, a key emerging problem in today's online media. We propose a discovery algorithm that leverages recently published work on unsuper…

cs.LG2023

Noisy Positive-Unlabeled Learning with Self-Training for Speculative Knowledge Graph Reasoning

Ruijie Wang, Baoyu Li, Yichen Lu +6

This paper studies speculative reasoning task on real-world knowledge graphs (KG) that contain both \textit{false negative issue} (i.e., potential true facts being excluded) and \t…

cs.SI2023

Unsupervised Image Classification by Ideological Affiliation from User-Content Interaction Patterns

Xinyi Liu, Jinning Li, Dachun Sun +6

The proliferation of political memes in modern information campaigns calls for efficient solutions for image classification by ideological affiliation. While significant advances h…

cs.LG2022★ 22 cited

Learning to Sample and Aggregate: Few-shot Reasoning over Temporal Knowledge Graphs

Ruijie Wang, Zheng Li, Dachun Sun +4

In this paper, we investigate a realistic but underexplored problem, called few-shot temporal knowledge graph reasoning, that aims to predict future facts for newly emerging entiti…

cs.SI2021★ 35 cited

Unsupervised Belief Representation Learning with Information-Theoretic Variational Graph Auto-Encoders

Jinning Li, Huajie Shao, Dachun Sun +6

This paper develops a novel unsupervised algorithm for belief representation learning in polarized networks that (i) uncovers the latent dimensions of the underlying belief space a…

cs.SI2021

DyDiff-VAE: A Dynamic Variational Framework for Information Diffusion Prediction

Ruijie Wang, Zijie Huang, Shengzhong Liu +7

This paper describes a novel diffusion model, DyDiff-VAE, for information diffusion prediction on social media. Given the initial content and a sequence of forwarding users, DyDiff…

physics.soc-ph2020

Analyzing the Design Space of Re-opening Policies and COVID-19 Outcomes in the US

Chaoqi Yang, Ruijie Wang, Fangwei Gao +3

Recent re-opening policies in the US, following a period of social distancing measures, introduced a significant increase in daily COVID-19 infections, calling for a roll-back or s…

cs.SI2020★ 31 cited

paper2repo: GitHub Repository Recommendation for Academic Papers

Huajie Shao, Dachun Sun, Jiahao Wu +7

GitHub has become a popular social application platform, where a large number of users post their open source projects. In particular, an increasing number of researchers release r…

cs.LG2020★ 50 cited

ControlVAE: Controllable Variational Autoencoder

Huajie Shao, Shuochao Yao, Dachun Sun +5

Variational Autoencoders (VAE) and their variants have been widely used in a variety of applications, such as dialog generation, image generation and disentangled representation le…