Chao Chen

Measuring Traffic (2008)

Bickel, Peter J., Chen, Chao, Kwon, Jaimyoung, Rice, John, Van Zwet, Erik, Varaiya, Pravin

A traffic performance measurement system, PeMS, currently functions as a statewide repository for traffic data gathered by thousands of automatic sensors. It has integrated data collection,...

Quantifying Homology Classes (2008)

Chen, Chao, Freedman, Daniel

We develop a method for measuring homology classes. This involves three problems. First, we define the size of a homology class, using ideas from relative homology. Second, we define an optimal basis...

Quantifying Homology Classes (2008)

Chen, Chao, Freedman, Daniel

We develop a method for measuring homology classes. This involves three problems. First, we define the size of a homology class, using ideas from relative homology. Second, we define an optimal basis...

Quantifying Homology Classes (2008)

Chen, Chao, Freedman, Daniel

We develop a method for measuring homology classes. This involves three problems. First, we define the size of a homology class, using ideas from relative homology. Second, we define an optimal basis...

Quantifying Homology Classes II: Localization and Stability (2007)

Chen, Chao, Freedman, Daniel

In the companion paper, we measured homology classes and computed the optimal homology basis. This paper addresses two related problems, namely, localization and stability. We localize a class with...

Measuring and Localing Homology Classes (2007)

Freedman, Daniel, Chen, Chao

We develop a method for measuring and localizing homology classes. This involves two problems. First, we define relevant notions of size for both a homology class and a homology group basis, using...

Advanced Routing Protocols for Satellite and Space Networks (2005)

Chen, Chao

Satellite systems have the advantage of global coverage and offer a solution for providing broadband access to end users. Local terrestrial networks and terminals can be connected to the rest of the...

Advanced Routing Protocols for Satellite and Space Networks (2005)

Chen, Chao

Satellite systems have the advantage of global coverage and offer a solution for providing broadband access to end users. Local terrestrial networks and terminals can be connected to the rest of the...

Advanced Routing Protocols for Satellite and Space Networks (2005)

Chen, Chao

Satellite systems have the advantage of global coverage and offer a solution for providing broadband access to end users. Local terrestrial networks and terminals can be connected to the rest of the...

Topics in random forests / (2005)

Chen, Chao.

Thesis (Ph. D. in Statistics)--University of California, Berkeley, Fall 2005.

Advanced routing protocols for satellite and space networks (2005)

Chen, Chao.

Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2006.

Berkeley Highway Lab Videl Data Collection System (2004)

Chen, Chao, Lyddy, Daniel, Dundar, Baris

The goal of this project is to replace the existing analog video collection system on the roof of Pacific Park Plaza (PPP) with a digital one. This video collection system is part of the Berkeley...

Travel Times on Changeable Message Signs: Pilot Project (2004)

Chen, Chao

We describe a system to display real time travel times on Changeable Message Signs (CMS) in California. CMS's show dynamic information and allow the Traffic Management Center (TMC) to communicate to...

Internet: State-of-the-Art (2003)

Ian F, Chao Chen, Jian Fang, Weilian Su

The developments in the space technologies are enabling the realization of deep space scientific missions such as Mars exploration.

Freeway Performance Measurement System (PeMS) (2003)

Chen, Chao

The freeway Performance Measurement System (PeMS) collects real time traffic data from sensors and generates performance measures of vehicle miles traveled, hours traveled, and travel time. This...

Sensor Transforms for (2002)

Mark S. Drew, Chao Chen, Graham D. Finlayson

The invariant image [1, 2] formed from an RGB image taken under light that can be approximated as Planckian solves the colour constancy problem at a single pixel. The invariant is a very useful tool...

Traffic Flow on a Freeway Network (2001)

Peter Bickel, Chao Chen, Jaimyoung Kwon, John Rice, Erik Van Zwet

This paper gives an overview of some of our activities, focusing on gathering statistics on traffic flow over the network of freeways in Los Angeles and on the prediction of travel times over this...

Overview of a workshop on quantitative models for developmental toxicity risk assessment*

Kimmel, Carole A., Wellington, Dorothy G., Farland, William, Ross, Philip, Manson, Jeanne M., Chernoff, Neil, ...

A workshop was held to discuss potential advancements to improve the precision of risk estimates for developmental toxicity. This paper presents an overview of the discussions at the workshop,...

Overview of a workshop on quantitative models for developmental toxicity risk assessment*

Kimmel, Carole A., Wellington, Dorothy G., Farland, William, Ross, Philip, Manson, Jeanne M., Chernoff, Neil, ...

A workshop was held to discuss potential advancements to improve the precision of risk estimates for developmental toxicity. This paper presents an overview of the discussions at the workshop,...

Core-controlled polymorphism in virus-like particles

Sun, Jingchuan, DuFort, Chris, Daniel, Marie-Christine, Murali, Ayaluru, Chen, Chao, Gopinath, Kodetham, ...

This study concerns the self-assembly of virus-like particles (VLPs) composed of an icosahedral virus protein coat encapsulating a functionalized spherical nanoparticle core. The recent development...

Corporate Control, Restructuring, and Firm Performance in China

XIANG CAI, CHAO CHEN

For most companies in China, especially privately owned enterprises, going public to raise external funds is very difficult. Therefore, entering the capital market through corporate control of a...

The Choice among Long-Term Financing Instruments for Public Utilities.

Chen, Chao

This study examines the decision of regulated utilities to raise new financing via common stock, debt, or preferred stock offerings. The authors develop several logit models to test how a set of...

Underpricing and Operating Performance of Chinese B-Share Initial Public Offerings

Chao Chen, Wenbin Chen, Jing Chi

Previous research shows that Chinese A-share initial public offerings (IPOs) experience very high initial returns. This study focuses on Chinese B-share IPOs and investigates their initial returns,...

The Linkage Between the Fuel Oil Markets of Singapore and China

Zhen Wang, Chao Chen, Zhenhai Liu

We examine the linkage between the Singapore and China fuel oil markets using cointegration and Granger causality tests. We find that the Singapore fuel oil spot price is positively correlated with...

IPO underpricing in China: New evidence from the primary and secondary markets

Chang, Eddy, Chen, Chao, Chi, Jing, Young, Martin

This paper divides Chinese A-Share IPO initial returns into the initial return in the primary market and in the secondary market. Our empirical evidence shows that the initial abnormal return in the...