Joydeep Ghosh

New Student Apps Encourage Users to Go Nuts over Healthcare

There is a new app on the market that encourages users to go nuts over healthcare, complete with a squirrely mascot. Created by the founders of Accordion Health and dubbed the “health nuts,” the two new apps, Pistachio and Chestnut, bring medical care back under the control, and into the palms of, users and patients.

Modeling and Algorithms for Aggregated Data

Databases in domains such as healthcare are routinely released to the public in aggregated form to preserve privacy. However, naive application of existing modeling techniques on aggregated data is affected by ecological fallacy that can drastically reduce the accuracy of results and often lead to misleading inferences at the individual level. The project by Prof.

Generalization of Standard Matrix Completion

Joydeep Ghosh and student Suriya Gunasekar work on the generalization of standard matrix completion in various aspects. In previous work, we have proposed tractable estimators for matrix completion with observations arising from heterogeneous datatypes and heterogeneous noise models. In a more recent work, we focus on consistency results for the collective matrix completion problem of jointly recovering a collection of matrices with shared structure.

Bayesian Sparse Principal Component Analysis

Several real-life high dimension datasets can be reasonably represented as a
linear combination of a few sparse vectors. Succinct representation of such data with a few selected variables is highly desirable for such cases. A Bayesian setup is useful because the limitation of knowing a limited number of high dimensional data points can be alleviated by well-designed domain-specific priors.

WNCG Faculty and Students Showcase Innovation During SXSW 2015

An incubator of cutting-edge technologies and digital creativity, SXSW Interactive 2015 featured five days of presentations and panels from the brightest minds in emerging technology. Special programs showcased new websites, video games and startup ideas from the community.

WNCG at SXSW Interactive 2015

WNCG Faculty and students met on Sunday with researchers from the Center for Transportation Research (CTR) and other UT Austin Cockrell School Engineers during the first-ever UT Village at SXSW Interactive 2015. 

This year's event featured panels and interactive research demonstrations and was open to all SXSW Interactive 2015 Badge Holders. Click the image below to view the complete slideshow from the day's events.

 

Inaugural D-STOP Symposium Explores Pathways to Connected, Autonomous Transportation World

In 2013, 32,719 fatalities resulted from traffic crashes, most of which were caused by driver error. Across the globe, people are facing longer commutes and five Texas communities are in the top 26 most congested cities in the United States. Traffic congestion creates about 4.8 billion hours of travel delay and affects the environment through increased carbon footprints and higher fuel consumption.

Bayesian Sparse Principal Component Analysis

Several real-life high dimension datasets can be reasonably represented as a linear combination of a few sparse vectors. Succinct representation of such data with a few selected variables is highly desirable for such cases. A Bayesian setup is useful because the limitation of knowing a limited number of  high dimensional data points can be alleviated by well-designed domain-specific priors.

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