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Zekun Tong

8 accepted papers

2024

Predicting Carpark Availability in Singapore with Cross-Domain Data: A New Dataset and A Data-Driven Approach

IJCAI 2024poster

The increasing number of vehicles highlights the need for efficient parking space management. Predicting real-time Parking Availability (PA) can help mitigate traffic congestion and the corresponding social problems, which is a pressing issue in densely populated cities like Singapore. In this study…

2022

Primitive3D: 3D Object Dataset Synthesis From Randomly Assembled Primitives

CVPR 2022poster

Numerous advancements of deep learning can be attributed to access to large-scale and well-annotated datasets. However, such a dataset is prohibitively expensive in 3D computer vision due to the substantial collection cost. To alleviate this issue, we propose a cost-effective method for automaticall…

Cited by 5PDFScholar
2021

Directed Graph Contrastive Learning

NeurIPS 2021poster

Graph Contrastive Learning (GCL) has emerged to learn generalizable representations from contrastive views. However, it is still in its infancy with two concerns: 1) changing the graph structure through data augmentation to generate contrastive views may mislead the message passing scheme, as such g…

2021

Generalizable Person Re-Identification With Relevance-Aware Mixture of Experts

CVPR 2021poster

Domain generalizable (DG) person re-identification (ReID) is a challenging problem because we cannot access any unseen target domain data during training. Almost all the existing DG ReID methods follow the same pipeline where they use a hybrid dataset from multiple source domains for training, and t…

Cited by 160PDFScholar
2021

IDM: An Intermediate Domain Module for Domain Adaptive Person Re-ID

ICCV 2021poster

Unsupervised domain adaptive person re-identification (UDA re-ID) aims at transferring the labeled source domain's knowledge to improve the model's discriminability on the unlabeled target domain. From a novel perspective, we argue that the bridging between the source and target domains can be utili…

Cited by 164PDFcodeScholar
2021

Modeling Trajectories with Neural Ordinary Differential Equations

IJCAI 2021poster

Recent advances in location-acquisition techniques have generated massive spatial trajectory data. Recurrent Neural Networks (RNNs) are modern tools for modeling such trajectory data. After revisiting RNN-based methods for trajectory modeling, we expose two common critical drawbacks in the existing…

Cited by 50SourcePDFScholar
2021

PointBA: Towards Backdoor Attacks in 3D Point Cloud

ICCV 2021poster

3D deep learning has been increasingly more popular for a variety of tasks including many safety-critical applications. However, recently several works raise the security issues of 3D deep models. Although most of them consider adversarial attacks, we identify that backdoor attack is indeed a more s…

Cited by 64PDFScholar
2020

Digraph Inception Convolutional Networks

NeurIPS 2020poster

Graph Convolutional Networks (GCNs) have shown promising results in modeling graph-structured data. However, they have difficulty with processing digraphs because of two reasons: 1) transforming directed to undirected graph to guarantee the symmetry of graph Laplacian is not reasonable since it not…