Visit SIAM Blogs!

Archive for June 2011

Watch video highlights from M3 Challenge 2011!

Moody’s Mega Math Challenge 2011 is now behind us, but you can watch some of the highlights from this year’s contest through our video recaps.

Get an overview of the 2011 contest: from the problem to the final presentations and awards ceremony:


Watch winning team members talk about their experiences and view clips from their outstanding presentations:


The 2011 challenge at a glance:

SIAM Journal on Imaging Sciences paper selected as New Hot Paper

Highly-cited research on algorithms for medical imaging, intelligence surveillance and data mining

According to Thomson Reuters Essential Science Indicators, the article, “The Split Bregman Method for L1-Regularized Problems” published in SIAM Journal on Imaging Sciences is a “New Hot Paper” in the field of computer science. The paper, which appears in Volume 2 (2), pp 323-343, 2009, of the journal highlights cutting-edge numerical algorithms for the solution of problems related to recovery and restoration of signals, images, and video from meager data.

This designation means that the paper is one of the most highly-cited articles in this discipline published over the last two years. Authors Tom Goldstein and Stanley Osher attribute the high citation of their research to the simplicity and speed of the algorithms they propose as well as its wide-ranging potential applications. “[The paper] gives state-of-the-art, fast, simple, and versatile numerical algorithms for solving a class of problems of great practical and theoretical significance,” the authors said in an e-mail.

The research has relevance in various areas such as medical imaging, intelligence surveillance, statistics, and data mining. “This is a method which is useful in predicting what movies Netflix customers might prefer, finding objects on the ground from satellite observations, enabling patients to spend less time in MRI machines, reducing radiation exposure from CT scans, allowing doctors to track needles in ultrasound machines, and more,” the authors wrote.

New challenges and future directions include figuring out ways to further speed up methods based on these algorithms, optimizing geometries, enabling imaging capabilities through turbulence, and enhancing filtering methods for dynamical systems.

Goldstein is a postdoctoral research fellow in the Department of Electrical Engineering at Stanford University and Osher is a professor of mathematics, computer science, and electrical engineering at the University of California at Los Angeles.

“Hot papers” are papers published within the previous two years that receive an unusually high number of citations in the latest two-month period, according to data from Thomson Reuters Essential Science Indicators.

Access the complete paper here.

Opportunity for Public Comment: NSB/NSF Seeks Input on Proposed Merit Review Criteria Revision and Principles

Lewis-Burke Associates LLC – June 14, 2011

Over the past year, the National Science Board’s (NSB) Merit Review Task Force did a careful review of the National Science Foundation’s two merit review criteria (Intellectual Merit and Broader Impacts). Substantive input from a wide variety of stakeholder groups helped guide the work of the Task Force, which recently proposed maintaining the two criteria, but revising the text to clarify the intent of the criteria and how they are to be used during the review process.

The NSF and NSB are now interested in getting feedback on the revised criteria and the underlying principles upon which they are based. On June 14, the NSF an NSB made a joint announcement seeking input on the NSB Task Force on Merit Review’s proposed revisions to NSF’s merit review criteria, which includes intellectual merit and broader impacts, for reviewers to consider when evaluating proposals, and have issued a joint Dear Colleague Letter requesting such input.  The Task Force has been working since March 2010 to review the criteria, collecting input over the last year from NSF staff, Advisory Committees, and external stakeholders. Read the rest of this entry »

SIAM Unwrapped – June 2011

SIAM Unwrapped is a free electronic newsletter distributed monthly to SIAM members. It provides links to industry news, membership information, meetings, publications, and other items of interest.

Dear SIAM members,

As we wet our feet in the realm of social media, we are beginning to use our Twitter and Facebook pages, in addition to traditional methods of communication, such as regular and electronic mail to communicate with our community.

Social media offers the sort of instant two-way communication that not only allows us to convey timely information to our members, but also allows you to contact us with any questions or concerns that require immediate feedback.

Check out our Twitter and Facebook pages for updates on SIAM events, prizes, raffles, and news from the larger applied math community. Read the rest of this entry »