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<!DOCTYPE HTML>
<html>
<head>
<title>cfong32's Portfolio</title>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no" />
<link rel="stylesheet" href="assets/css/main.css" />
</head>
<body class="is-preload">
<!-- Nav -->
<nav id="nav">
<ul class="container">
<li><a href="index.html#about-me">About Me</a></li>
<li><a href="index.html#projects">Featured Projects</a></li>
<li><a href="https://www.linkedin.com/in/cfong32/" class="icon brands fa-linkedin-in"><span class="label">LinkedIn</span></a></li>
<li><a href="https://github.com/cfong32" class="icon brands fa-github"><span class="label">Github</span></a></li>
<li><a href="mailto:fongchungyan@gmail.com" class="icon fa-envelope"><span class="label">Email</span></a></li>
</ul>
</nav>
<!-- About Me -->
<article id="intro" class="wrapper style1">
<div class="container">
<div class="row">
<div class="col-12">
<header>
<h2>Deep-learning based</h2>
<h1><strong>Covid-19 forecasting</strong></h1>
<h2>with model-based data augmentation</h2>
</header>
<a href="https://arxiv.org/abs/2302.01155"><br>
<b>Fong, Chung Yan, and Dit-Yan Yeung<br>
"Deep COVID-19 Forecasting for Multiple States with Data Augmentation"<br>
arXiv:2302.01155 (2023)</b>
</a>
</div>
</div>
</div>
</article>
<!-- Idea -->
<article id="idea" class="wrapper style3">
<div class="container">
<header>
<h2>
<b>Key ideas</b> <a href="#" class="far fa-lightbulb"></a>
</h2>
</header>
<div class="row aln-center">
<div class="col-6 col-6-medium col-12-small">
<section class="box style1">
<h3><b>Transformer model</b></h3>
<p>The <b>self-attention mechanism</b> of the transformer allow multiple time series to interact with each other.</p>
<img class="image featured" src="images/modelc.png" alt="" />
</section>
</div>
<div class="col-6 col-6-medium col-12-small">
<section class="box style1">
<h3><b>Ensemble method</b></h3>
<p>By combine models which are randomly initialized into an ensemble, the overall forecast become <b>more robust</b>.</p>
<img class="image featured" src="images/ensemble.png" alt="" />
</section>
</div>
<div class="col-6 col-6-medium col-12-small">
<section class="box style1">
<h3><b>Data augmentation</b></h3>
<p>Employing an SIR-based data model, we generate <b>more data for training and validation</b>.
The generated data was shown to be distributionally closer to the test data.</p>
<img class="image featured" src="images/tsne.210717.png" alt="" />
</section>
</div>
</div>
</div>
</article>
<!-- Github -->
<article id="github" class="wrapper style1">
<div class="container">
<header>
<h2>
<b>GitHub</b> <a href="#" class="icon brands fa-github"></a>
</h2>
</header>
<div class="row">
<div class="col-6 col-6-medium col-12-small">
<article class="box style2">
<h3>Our <strong>HKUST-DNN</strong> model<br>
(without data augmentation)
</h3>
<p><a href="https://github.com/cfong32/covid19-forecast-hub">Data repo</a>
&
<a href="https://cfong32.github.io/HKUST-DNN/">Sample results</a>
</p>
<p>
Contributed to the <a href="https://covid19forecasthub.org/"> <br>
US COVID-19 Forecast Hub</a>
</p>
</article>
</div>
<div class="col-6 col-6-medium col-12-small">
<article class="box style2">
<h3>Our <strong>HKUST-DNN_DA</strong> model<br>
(with data augmentation)
</h3>
<p><a href="https://github.com/cfong32/covid19-forecast-hub-de">Data repo</a>
&
<a href="https://cfong32.github.io/HKUST-DNN_DA/">Sample results</a>
</p>
<p>
Contributed to the <a href="https://github.com/KITmetricslab/covid19-forecast-hub-de"> <br>
German COVID-19 Forecast Hub</a>
</p>
</article>
</div>
</div>
</article>
<!-- Publication -->
<article id="publication" class="wrapper style1">
<div class="container">
<div class="row">
<div class="col-12">
<h2>Details are in <b>our paper</b></h2>
<p>
<a href="https://arxiv.org/abs/2302.01155"><br>
<b>Fong, Chung Yan, and Dit-Yan Yeung<br>
"Deep COVID-19 Forecasting for Multiple States with Data Augmentation"<br>
arXiv:2302.01155 (2023)</b>
</a>
</p>
</div>
</div>
</div>
</article>
<!-- Contact -->
<article id="contact" class="wrapper style4">
<div class="container medium">
<header>
<h2>My Contact</h2>
<p>Welcome to drop me a message</p>
</header>
<div class="row">
<div class="col-12">
<ul class="social">
<li><a href="https://www.linkedin.com/in/cfong32/" class="icon brands fa-linkedin-in"><span class="label">LinkedIn</span></a></li>
<li><a href="https://github.com/cfong32" class="icon brands fa-github"><span class="label">Github</span></a></li>
<li><a href="mailto:fongchungyan@gmail.com" class="icon fa-envelope"><span class="label">Email</span></a></li>
</ul>
</div>
</div>
<footer>
<ul id="copyright">
<li>© 2023 cfong32</li>
</ul>
</footer>
</div>
</article>
<!-- Scripts -->
<script src="assets/js/jquery.min.js"></script>
<script src="assets/js/jquery.scrolly.min.js"></script>
<script src="assets/js/browser.min.js"></script>
<script src="assets/js/breakpoints.min.js"></script>
<script src="assets/js/util.js"></script>
<script src="assets/js/main.js"></script>
</body>
</html>