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Dixin Luo

16 accepted papers

2025

Efficient Video Face Enhancement with Enhanced Spatial-Temporal Consistency

CVPR 2025poster

As a very common type of video, face videos often appear in movies, talk shows, live broadcasts, and other scenes. Real-world online videos are often plagued by degradations such as blurring and quantization noise, due to the high compression ratio caused by high communication costs and limited tran…

2025

WatE: A Wasserstein t-distributed Embedding Method for Information-enriched Graph Visualization

AAAI 2025technical

As a fundamental problem of graph analysis, graph visualization aims to embed a set of graphs in a low-dimensional (e.g., 2D) space and provide insights into their distribution and clustering structure. Focusing on this problem, we propose a novel Wasserstein t-distributed embedding (WatE) method,…

2025

Weakly-Supervised Movie Trailer Generation Driven by Multi-Modal Semantic Consistency

IJCAI 2025

As an essential movie promotional tool, trailers are designed to capture the audience's interest through the skillful editing of key movie shots. Although some attempts have been made for automatic trailer generation, existing methods often rely on predefined rules or manual fine-grained annotations

2024

A Plug-and-Play Quaternion Message-Passing Module for Molecular Conformation Representation

AAAI 2024technical

Graph neural networks have been widely used to represent 3D molecules, which capture molecular attributes and geometric information through various message-passing mechanisms. This study proposes a novel quaternion message-passing (QMP) module that can be plugged into many existing 3D molecular repr…

2024

Generalizable Face Landmarking Guided by Conditional Face Warping

CVPR 2024poster

As a significant step for human face modeling editing and generation face landmarking aims at extracting facial keypoints from images. A generalizable face landmarker is required in practice because real-world facial images e.g. the avatars in animations and games are often stylized in various ways.…

2024

Inferring Iterated Function Systems Approximately from Fractal Images

IJCAI 2024poster

As an important mathematical concept, fractals commonly appear in nature and inspire the design of many artistic works. Although we can generate various fractal images easily based on different iterated function systems (IFSs), inferring an IFS from a given fractal image is still a challenging inve…

2023

Coupled Point Process-based Sequence Modeling for Privacy-preserving Network Alignment

IJCAI 2023poster

Network alignment aims at finding the correspondence of nodes across different networks, which is significant for many applications, e.g., fraud detection and crime network tracing across platforms. In practice, however, accessing the topological information of different networks is often restrict…

2023

Privacy-Preserved Evolutionary Graph Modeling via Gromov-Wasserstein Autoregression

AAAI 2023technical

Real-world graphs like social networks are often evolutionary over time, whose observations at different timestamps lead to graph sequences. Modeling such evolutionary graphs is important for many applications, but solving this problem often requires the correspondence between the graphs at differen…

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2021

Learning Graphons via Structured Gromov-Wasserstein Barycenters

AAAI 2021technical

We propose a novel and principled method to learn a nonparametric graph model called graphon, which is defined in an infinite-dimensional space and represents arbitrary-size graphs. Based on the weak regularity lemma from the theory of graphons, we leverage a step function to approximate a graphon.…

2020

Learning Autoencoders with Relational Regularization

ICML 2020poster

We propose a new algorithmic framework for learning autoencoders of data distributions. In this framework, we minimize the discrepancy between the model distribution and the target one, with relational regularization on learnable latent prior. This regularization penalizes the fused Gromov-Wasserste…

2019

Gromov-Wasserstein Learning for Graph Matching and Node Embedding

ICML 2019oral

A novel Gromov-Wasserstein learning framework is proposed to jointly match (align) graphs and learn embedding vectors for the associated graph nodes. Using Gromov-Wasserstein discrepancy, we measure the dissimilarity between two graphs and find their correspondence, according to the learned optimal…

2019

Scalable Gromov-Wasserstein Learning for Graph Partitioning and Matching

NeurIPS 2019poster

We propose a scalable Gromov-Wasserstein learning (S-GWL) method and establish a novel and theoretically-supported paradigm for large-scale graph analysis. The proposed method is based on the fact that Gromov-Wasserstein discrepancy is a pseudometric on graphs. Given two graphs, the optimal transpo…