Georgia Tourassi

physicist, Computing Facility director

Studied at Duke University
Worked at Duke University

physicist, computer scientist

Quotations with a citation

Unquestionably, the radiologists approach the diagnostic task with a level of intelligence, flexibility, and common sense that is difficult to duplicate with a computer. Thus far, research findings have demonstrated only that computers are the best savants when it comes to executing mathematically rigorous steps toward the solution of narrowly defined problems. Nonetheless, the radiologist's approach is not devoid of limitations. There are well-documented errors and variations in the human interpretation of clinical images ... Some study findings even indicate that the same errors are being made now, as they were in earlier decades ...

High-performance computing (or supercomputing) has been the cornerstone for research advancement, scientific innovation, competitive advantage, and economic prosperity ... The Department of Energy’s Leadership Computing Facilities have a long history of enabling researchers to accelerate scientific discovery and deliver practical breakthroughs for some of the most computationally challenging problems. These research and development advances happen across many disciplines such as materials science, earth science, nuclear science, astrophysics, biology, and engineering to name a few. In addition, supercomputing has proven to be an effective ally to our society by helping us address critical and pressing challenges, such as climate change, national emergencies, and public health. For instance, supercomputers help researchers develop personalized medical treatments as well as better predict and manage the effects of natural disasters such as floods and earthquakes through the use of advanced computer simulations. ... These discoveries help shape our understanding of the universe, bolster US economic competitiveness, and contribute to a better future. ...

... exascale computing refers to computer systems that can perform 1 billion, billion full precision calculations per second. ... the Department of Energy set that goal a decade ago, not only to achieve exascale computing but to achieve it with extreme energy efficiency. And both our laboratories are very proud to have delivered on that vision with these two systems that are dedicated to open science. We are already seeing how exascale computing is driving innovation and breakthroughs in many scientific domains, including medicine, from drug discovery all the way to clinical care. And this is a crucial milestone for science and technology because, now, we can tackle challenges that previously we could not. We can tackle them faster. We can analyze large scales of data with extreme efficiency. We can do simulations of very complex systems.