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Lin Tian

7 accepted papers

2026

Estimating Online Influence Needs Causal Modeling! Counterfactual Analysis of Misinformation Engagement on Social Media

AAAI 2026technical

Understanding true influence in social media requires distinguishing correlation from causation—particularly when analyzing misinformation spread. While existing approaches focus on exposure metrics and network structures, they often fail to capture the causal mechanisms by which external temporal s

Cited by 0SourcePDFScholar
2025

CARL: A Framework for Equivariant Image Registration

CVPR 2025poster

Image registration estimates spatial correspondences between image pairs. These estimates are typically obtained via numerical optimization or regression by a deep network. A desirable property is that a correspondence estimate (e.g., the true oracle correspondence) for an image pair is maintained u…

2025

Tree of Agents: Improving Long-Context Capabilities of Large Language Models through Multi-Perspective Reasoning

EMNLP 2025

Large language models (LLMs) face persistent challenges when handling long-context tasks, most notably the “lost in the middle” issue, where information located in the middle of a long input tends to be underutilized. Some existing methods that reduce input have the risk of discarding key informatio

2023

GradICON: Approximate Diffeomorphisms via Gradient Inverse Consistency

CVPR 2023poster

We present an approach to learning regular spatial transformations between image pairs in the context of medical image registration. Contrary to optimization-based registration techniques and many modern learning-based methods, we do not directly penalize transformation irregularities but instead pr…

2022

DUCK: Rumour Detection on Social Media by Modelling User and Comment Propagation Networks

NAACL 2022long

Social media rumours, a form of misinformation, can mislead the public and cause significant economic and social disruption. Motivated by the observation that the user network — which captures who engage with a story — and the comment network — which captures how they react to it — provide complemen…

2021

Discovering Hidden Physics Behind Transport Dynamics

CVPR 2021poster

Transport processes are ubiquitous. They are, for example, at the heart of optical flow approaches; or of perfusion imaging, where blood transport is assessed, most commonly by injecting a tracer. An advection-diffusion equation is widely used to describe these transport phenomena. Our goal is estim…

Cited by 12PDFScholar
2016

Graphical Time Warping for Joint Alignment of Multiple Curves

NeurIPS 2016poster

Dynamic time warping (DTW) is a fundamental technique in time series analysis for comparing one curve to another using a flexible time-warping function. However, it was designed to compare a single pair of curves. In many applications, such as in metabolomics and image series analysis, alignment is…

Cited by 16SourcePDFScholar