News

Community Seismic Network Detected Air Pulse From Refinery Explosion

06-30-16

The Community Seismic Network’s (CSN) tight network of low-cost detectors are improving the resolution of seismic data gathering and could offer city inspectors crucial information on building damage after a quake. On February 18, 2015, an explosion rattled the ExxonMobil refinery in Torrance, causing ground shaking equivalent to that of a magnitude-2.0 earthquake and blasting out an air pressure wave similar to a sonic boom. Traveling at 343 meters per second the air pressure wave reached a 52-story high-rise in downtown Los Angeles 66 seconds after the blast. The building's seismometers, which are part of the CSN, noted and recorded the motion of each individual floor. "We want first responders, structural engineers, and facilities engineers to be able to make decisions based on what the data say," explained Monica Kohler, Research Assistant Professor of Mechanical and Civil Engineering, and the lead author of a paper detailing the high-rise's response that recently appeared in the journal Earthquake Spectra. [Caltech story]

Tags: research highlights MCE Monica Kohler

Realtime Camera Planning

06-29-16

Yisong Yue, Assistant Professor of Computing and Mathematical Sciences, is working with colleagues at Disney Research to develop machine-learning algorithms to make automated cameras more human-like.  Professor Yue's research group is generally interested in building AI systems that imitate demonstrated behavior, including laboratory animals, basketball players, humans playing video games, etc.  In this recent work with Disney Research, they are developing an automated camera system that learns how best to film sports matches by watching how human camera operators behave at particular moments. Early testing shows that its shots are far smoother than other automated cameras. [Learn more about the applications] [Learn more about the theory] [techradar story] [Sports Illustrated story]

Tags: research highlights CMS Yisong Yue

Best Paper At Conference on Uncertainty in Artificial Intelligence

06-28-16

Leonard J. Schulman, Professor of Computer Science, and postdoctoral scholar Piyush Srivastava have won the best paper award at the 2016 Conference on Uncertainty in Artificial Intelligence for their paper, Stability of Causal Inference. [Read the paper]

Tags: research highlights CMS Leonard Schulman Piyush Srivastava

Smaller Chips May Depend on Vacuum Tube Technology

06-05-16

A recent New York Times article featured Caltech alumnus, Gordon Moore (PhD ’54), and the research of Professor Axel Scherer on ultrasmall vacuum tube as a candidate to replace the transistor. [Read the article]

Tags: APhMS EE research highlights CMS Gordon Moore Axel Scherer

The Power of Entanglement

05-20-16

Fernando Brandão, Bren Professor of Theoretical Physics, studies how quantum computers may someday revolutionize computing and change the world's cryptographic systems. [Caltech interview]

Tags: research highlights CMS Fernando Brandão

DNA Origami: Folded DNA as a Building Material for Molecular Devices

05-20-16

Paul Rothemund, Research Professor of Bioengineering, Computing and Mathematical Sciences, and Computation and Neural Systems, explains how his group and groups around the world are using DNA origami in applications ranging from potential cancer treatments to devices for computing. [Caltech interview]

Tags: research highlights CMS Paul Rothemund

Caltech’s Smart Charging Network for Electrical Vehicles

04-24-16

Charging electric vehicles (EVs) can require a substantial amount of electricity (most EVs charge at 7 kilowatts, the equivalent of simultaneously running 70 desktop computers). Steven Low, Professor of Computer Science and Electrical Engineering, has developed Caltech's adaptive charging network, which uses a smart algorithm to coordinate the charging schedule with the Institute's existing electrical infrastructure. This program helps minimize energy usage and about 30 percent of the electricity at each charging station is from carbon-free renewable sources. [Caltech story]

Tags: EE energy research highlights CMS Steven Low

Toward a Smarter Grid

10-19-15

The power network of the future—also known as the smart grid—will have to be much more dynamic and responsive than the current electric grid, handling tremendous loads while incorporating intermittent energy production from renewable resources such as wind and solar, all while ensuring that when you or I flip a switch at home or work, the power still comes on without fail. An interdisciplinary group of engineers, economists, mathematicians, and computer scientists, including Professors Steven Low and Adam Wierman are working to develop the devices, systems, theories, and algorithms to help guide this historic transformation and make sure that it is properly managed. [Caltech feature]

Tags: EE research highlights CMS Adam Wierman Steven Low

Professor Umans Named Simons Investigator in Computer Science

05-21-15

Christopher Umans, Professor of Computer Science, has been named a Simons Investigator in Computer Science by the Simons Foundation’s Mathematics and Physical Sciences Division. The award honors and supports "outstanding scientists in their most productive years, when they are establishing creative new research directions, providing leadership to the field and effectively mentoring junior scientists." Professor Umans’ research centers on algorithms and complexity. He has made contributions to the understanding of randomness in computation, and algorithms for fundamental algebraic problems which includes developing a group-theoretic approach for matrix multiplication. [List of awardees] [Caltech story]

Tags: honors research highlights CMS Christopher Umans

Professor Tropp Receives Pioneer Award

04-22-15

Joel A. Tropp, Professor of Applied and Computational Mathematics, will receive the Compressive Sampling Pioneer Award at this year’s International Society for Optics and Photonics - Defense Security and Sensing conference (SPIE. DSS). He is one of the first researchers to contribute to the field of sparse approximation, which is also known as compressive sampling. At the conference he will give a presentation on sampling theorems for structured signals, based on his paper entitled “Living on the Edge.”

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Tags: honors research highlights CMS Joel Tropp