Search Results for author: Yuansan Liu

Found 4 papers, 1 papers with code

Time Series Representation Learning with Supervised Contrastive Temporal Transformer

no code implementations16 Mar 2024 Yuansan Liu, Sudanthi Wijewickrema, Christofer Bester, Stephen O'Leary, James Bailey

We show that the model performs with high reliability and efficiency on the online CPD problem ($\sim$98\% and $\sim$97\% area under precision-recall curve respectively).

Change Point Detection Representation Learning +2

Time-Transformer: Integrating Local and Global Features for Better Time Series Generation

1 code implementation18 Dec 2023 Yuansan Liu, Sudanthi Wijewickrema, Ang Li, Christofer Bester, Stephen O'Leary, James Bailey

Experimental results demonstrate that our model can outperform existing state-of-the-art models in 5 out of 6 datasets, specifically on those with data containing both global and local properties.

Data Augmentation Time Series +1

De Novo Molecular Generation with Stacked Adversarial Model

no code implementations24 Oct 2021 Yuansan Liu, James Bailey

A second stage model then takes these features to learn properties of the molecules and refine more valid molecules.

valid

Pandemic model with data-driven phase detection, a study using COVID-19 data

no code implementations24 Oct 2021 Yuansan Liu, Saransh Srivastava, Zuo Huang, Felisa J. Vázquez-Abad

The main contributions of our model are: (a) providing interpretation of the parameters, (b) determining which parameters of the model are more important to produce changes in the spread of the disease, and (c) using data-driven discovery of sudden changes in the evolution of the pandemic.

Change Detection Decision Making

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