September.2003 to May. 2007

Research Assistant for Professor Elaine Chew, University of Southern California Project :Expression Systhesis Project
My Lab :Music Computation and Cognition

Description:The Expression Synthesis Project (ESP) explores the use of a driving interface for expression synthesis, also known as performance rendering. ESP aims to provide a compelling metaphor for expressive performance so as to make high-level expressive decisions accessible to non-experts. As one of the developers, I contributed a car dynamics model, a mapping strategy for ensuring tempo smoothness, a human centered road design method and the design of user tests.

September.2004 to September 2005

Worked with Professor Fernando Ordonez, University of Southern California
Project : Robust optimizatin for network design problem

Description:We show that solving an approximation to this robust formulation of the network design problem can be done efficiently for a network with single source and sink per commodity and general uncertainty in transportation costs and demand that are independent of each other. We also propose an efficient column generation procedure to solve the linear programming relaxation. The computational results show that the approximate robust solution found provides significant savings in the worst case.

March.2000 to March.2003

Research Assistant for Professor Li Cao,Tsinghua University,
Project 1: (Sep.2000~Jan.2001): Research of Control Algorithm For Automatic Drive
Description:This project was to find a method that can control one autonomous car. With one vehicle systematic dynamic model, we used the predictive control theory as the strategy and use one improved genetic algorithm as the optimization algorithm. From the experiment result, we found this method has a good performance.

Project 2: (Jul.2001~Jan.2003): Study on People Counting Methods in Intelligent Transportation Systems
Description:Developing a video-based bicycle flow monitoring and analysis system for ITS. Skin color feature detection and mathematical morphology method of image processing were used for counting the number of people.

Publications

1. Elaine Chew, Jie Liu and Alexandre R.J. Francois"ESP: Roadmaps as Constructed Interpretations and Guides to Expressive Performance",In Proc of the First Workshop on Audio and Music Computing for Multimedia at the ACM Multimedia Conference, Santa Barbara, CA, Oct 27, 2006

2. Supakorn Mudchanatongsuk, Fernando Ordonez and Jie Liu,"Robust Solutions for Network Design under Transportation Cost and Demand Uncertainty", accepted by Journal of Operations Research

3. Jie Liu, Elaine Chew and Alexandre R.J. Francois,"From Driving to Expressive Music Performance: Ensuring Tempo Smoothness",ACM SIGCHI International Conference on Advances in Computer Entertainment Technology, Hollywood, CA, June 14-16, 2006, Accept Rate: 12%

4. Elaine Chew, Alexandre R. J. Francois, Jie Liu and Aaron Yang"ESP: A Driving Interface for Musical Expression Synthesis",Conference on New Interfaces for Musical Expression (NIME), Vancouver, B.C., Canada, May 26-28, 2005.

5. Li Cao, Jie Liu,"Image Processing Techniques To Determine Bicycle Flow",2003 conference of Intelligent visual surveillance, Beijing, China, Dec. 6-7, 2003

6. Jie Liu, Hai Lan, "An Algorithm Using Predictive Control Theory For Automatic Drive", IEEE The First International Conference on Machine Learning and Cybernetics (ICMLC-2002), Beijing, China, November 4-5, 2002, pg. 1601-1604

7. Jie Liu, Li Cao, Zhaozheng Yin and Danya Yao, "Skin Color Used For Person Counting In ITS", 9th World Congress On Intelligent Transport Systems, Chicago, Illinois, October14-17, 2002

8. Li Cao, Jie Liu, "Travel Time Estimation and Data Fusion Based On Multiple Traffic Measurement Spots", Chinese Journal of Scientific Instrument, Volume 22(3), 2001, pg. 291-292

9. Li Cao, Jie Liu and M. Koizumi, "Data Fusion for Travel Time Estimation Based on Multiple Traffic Measurement Spots", Information Processing Society of Japan, IPSJ SIG Notes, Vol.2000, No. 83, 2000.9 pg. 7-12

10. Li Cao, Zhaozheng Yin, Jie Liu and Jia Lu, "Video Processing Method of Velocity Measurement Using Spatial Filter", Chinese Journal of Scientific Instrument, Volume 22(3), 2001, pg. 206-208

11. Li Cao, Jia Lu, Jie Liu and Zhaozheng Yin "Measurement of soft material stiffness based on vibration sensor system", Chinese Journal of Scientific Instrument, Volume 23(3), 2002