Introduction
Optimization is an important technique in scientific computing. In imaging applications, one needs the recovery of enhanced images from noisy signals and the reconstruction of some unknown information from external measurements. In radar applications, one needs the determination of the position of certain targets from the knowledge of reflected wavefields. In these scientific applications, optimization is an essential component in the numerical algorithms for solving these problems. Due to the complexity of realistic applications, traditional optimization techniques are not sufficient to meet the need, and there is much on-going research in the past decade in order to tackle the challenges. While there are many successful approaches in literature addressing some of the difficulties in developing optimization methods for scientific computing, there are still many challenges and open problems.
This international workshop aims to provide a platform for researchers working on optimization and scientific computing to gather and enhance the interaction among them. In particular, the workshop gives a forum for researchers to present their latest achievements and explore new research directions. The workshop is also an opportunity for graduate students and postdoc to learn basic knowledge and overall development in the field.
Organizing Committee
- Raymond Chan The Chinese University of Hong Kong
- Eric Chung The Chinese University of Hong Kong
- Ronald Lui The Chinese University of Hong Kong
- Jun Zou The Chinese University of Hong Kong
List of Speakers
- Zhengjian BAI Xiamen University
- Jianfeng CAI The Hong Kong University of Science and Technology
- Xiaojun CHEN The Hong Kong Polytechnic University
- Eric CHUNG The Chinese University of Hong Kong
- Patrick CIARLET ENSTA ParisTech
- Jan HESTHAVEN Ecole Polytechnique Federale de Lausanne
- Kazufumi ITO North Carolina State University
- Hui JI National University of Singapore
- Bangti JIN University College London
- Simon LABRUNIE University of Lorraine
- Rongjie LAI Rensselaer Polytechnic Institute
- Shingyu LEUNG The Hong Kong University of Science and Technology
- Peijun LI Purdue University
- Jie LIU National University of Singapore
- Xiliang LU Wuhan University
- Jun MA Macquiere University
- Shiqian MA The Chinese University of Hong Kong
- Benedetta MORINI University of Florence
- Ivan OSELEDETS Skoltech, Moscow
- Xuecheng TAI Hong Kong Baptist University
- Haijun WU Nanjing University
- Wotao YIN University of California, Los Angeles
- Xiaoming YUAN Hong Kong Baptist University
- Tieyong ZENG Hong Kong Baptist University
Program
The workshop will take place at Lady Shaw Building (LSB). The program schedule is shown below.
You may also download the program book here (pdf, 815kb).
Jun 21, 2017 (Wed)
| 8:45-9:20 | Registration |
| 9:20-9:30 | Opening |
| 9:30-10:10 | Jan Hesthaven |
| 10:10-10:50 | Simon Labrunie |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Xiaoming Yuan |
| 11:50-12:30 | Rongjie Lai |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Kazufumi Ito |
| 2:40-3:20 | Peijun Li |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Jianfeng Cai |
| 4:20-5:00 | Hui Ji |
Jun 22, 2017 (Thu)
| 9:00-9:30 | Registration |
| 9:30-10:10 | Patrick Ciarlet |
| 10:10-10:50 | Benedetta Morini |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Bangti Jin |
| 11:50-12:30 | Xiliang Lu |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Xiaojun Chen |
| 2:40-3:20 | Ivan Oseledets |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Zhengjian Bai |
| 4:20-5:00 | Tieyong Zeng |
| 6:00-8:00 | Banquet |
Jun 23, 2017 (Fri)
| 9:00-9:30 | Registration |
| 9:30-10:10 | Wotao Yin |
| 10:10-10:50 | Shingyu Leung |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Haijun Wu |
| 11:50-12:30 | Jun Ma |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Xuecheng Tai |
| 2:40-3:20 | Jie Liu |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Shiqian Ma |
| 4:20-5:00 | Eric Chung |
June 21, 2017 (Wednesday)
| 8:45-9:20 | Registration |
| 9:20-9:30 | Opening |
| 9:30-10:10 | Jan Hesthaven Advances in reduced order modeling |
| 10:10-10:50 | Simon Labrunie Modelling and simulation of Boltzmann-Poisson plasma equilibria |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Xiaoming Yuan How to implement ADMM to large-scale datasets |
| 11:50-12:30 | Rongjie Lai Nonrigid Point Clouds Registration Using Laplace-Beltrami Eigenmaps |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Kazufumi Ito Constrained optimization method and randomized algorithm for ill-posed problems |
| 2:40-3:20 | Peijun Li Inverse Source Problems for Wave Propagation |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Jianfeng Cai Non-Convex Methods for Low-Rank Matrix Reconstruction |
| 4:20-5:00 | Hui Ji Computational methods for multi-linear problems in computer vision |
June 22, 2017 (Thursday)
| 9:00-9:30 | Registration |
| 9:30-10:10 | Patrick Ciarlet Designing Meshes for Problems with Sign-Changing Coefficients |
| 10:10-10:50 | Benedetta Morini Regularizing trust-region methods for ill-posed nonlinear systems |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Bangti Jin Time stepping schemes for fractional diffusion |
| 11:50-12:30 | Xiliang Lu Randomized Kaczmarz Method for Linear Inverse Problems |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Xiaojun Chen Penalty methods for a class of non-Lipschitz optimization problems |
| 2:40-3:20 | Ivan Oseledets Optimization over low-rank matrix and tensor manifolds |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Zhengjian Bai A Riemannian Inexact Newton-CG Method for Nonnegative Inverse Eigenvalue Problems: Nonsymmetric Case |
| 4:20-5:00 | Tieyong Zeng Image Recovery: the Never Ending Story |
| 6:00-8:00 | Banquet |
June 23, 2017 (Friday)
| 9:00-9:30 | Registration |
| 9:30-10:10 | Wotao Yin Asynchronous Parallel Algorithms for Large Scale Fixed-Point Problems and Optimization |
| 10:10-10:50 | Shingyu Leung A Level Set Based Variational Principal Flow Method for Nonparametric Dimension Reduction on Riemannian Manifolds |
| 10:50-11:10 | Coffee |
| 11:10-11:50 | Haijun Wu Polynomial preserving recovery of linear FEM for Helmholtz equation with high wave number |
| 11:50-12:30 | Jun Ma From statistical image processing to survival analysis modelling –applications of constrained optimization |
| 12:30-2:00 | Lunch |
| 2:00-2:40 | Xuecheng Tai New region force for variational models in image segmentation and high dimensional data clustering |
| 2:40-3:20 | Jie Liu A second-order changing-connectivity ALE scheme and its application to fluid structure interaction with large convection of fluids and near contact of structures |
| 3:20-3:40 | Coffee |
| 3:40-4:20 | Shiqian Ma Geometric descent method for convex composite minimization |
| 4:20-5:00 | Eric Chung Local multiscale model reduction via constraint energy minimization |
Maps & Directions
The workshop sessions will be held in the Lady Shaw Building (LSB) in CUHK.
Follow the route indicated by the map below. Move the map around until you see a path connecting Yali Guest House and Lady Shaw Building. Be careful when crossing the road, as cars and shuttle buses often travel along the roads in this path.
Climb uphill along University Avenue until you reach a three-way intersection. Enter the glass doors on your right. Enter the lift at LG2/F of Lady Shaw Building. The lecture theatres are on 1/F. Turn left when you leave the escalator.
Take Shuttle Bus 1A / 1B / H near MTR Exit A - C or Shuttle Bus 3 near MTR Exit D. Get off at the second stop (Sir Run Run Shaw Hall).
(Shuttle Bus Route Information / Shuttle Bus Timetable)
The rooftop garden opposite Sir Run Run Shaw Hall is part of Lady Shaw Building. Go there and go downstairs the reach the Lady Shaw Building. Go to 1/F and turn left to go to LT1.
By taxi:
A taxi seats at most five. The 40-minute ride costs HKD 250 (about USD 30) if traffic is good. You can only take the red-colored taxi (city taxis). Passengers may request a receipt of payment upon arrival. The address of Royal Park Hotel is 8 Pak Hok Ting Street, Shatin.
By bus:
At the Airport Bus Terminus, take Airport Bus A41. Get off at the bus stop in front of the Hotel. It should be the second bus stop after a long tunnel. Note that it is not the terminal stop for the bus, so ask the driver where to get off, or pay attention to the announcement and press the red button on the rail when it is the next stop. The frequency is 20 minutes and the journey takes 45-60 minutes depending on traffic conditions. (Please click here for bus stop information.)
Sponsors
The workshop is generously supported by the following organizations:
Faculty of Science,
The Chinese University of Hong Kong
Research Summit Series,
The Chinese University of Hong Kong
Department of Mathematics,
The Chinese University of Hong Kong
