(Georgia Institute of Technology, 2017-04-21)
Jin, Dong (Kevin)
Modern industrial control systems (ICSes) are increasingly adopting Internet technology to boost control efficiency, which unfortunately opens up a new front for a potential “cyber Pearl Harbor.” People typically applied existing security techniques, such as firewalls or anti-virus software to secure ICSes. However, those solutions can only provide fine-grained protection at single devices. In this talk, we present a novel software-defined networking (SDN) based communication architecture for microgrid operations, with the goal of building a resilient and secure microgrid in the face of growing cyber-attacks and human errors. We leverage the global visibility, direct networking controllability and programmability offered by SDN to investigate multiple security applications, including self-healing network management, real-time and uncertainty-aware network verification, and resilient network forwarding. To enable high-fidelity evaluation of those applications in large-scale settings, we also develop a hybrid testbed combining virtual-machine-based network emulation and power system simulation using our kernel-based virtual time system.
(Georgia Institute of Technology, 2008-02-06)
Tompa, Martin
There are currently 575 bacterial species and 28 vertebrate species, ranging from primates to fishes, for which we know (nearly) their entire DNA sequences. These number will continue to increase rapidly over the next few years. Comparing these genome sequences has emerged as one of the most important areas of computational biology. For example, one way to predict functional portions of the human genome is to search among related genomes for sequences that appear to be remarkably similar due to selective pressure. I will discuss and demonstrate some of the methods and tools for such an approach, as well as some of the challenges and unsolved problems. This talk will be self-contained: no knowledge of biology beyond what you have heard in the news will be assumed.
(Georgia Institute of Technology, 2008-01-23)
Berman, Francine
The Information Age has brought with it a deluge of digital data. Current estimates are that in 2006, 161 exabytes (10¹⁸ bytes) of digital data were created from cell phones, computers, iPods, DVDs, sensors, satellites, scientific instruments, and other sources, providing a foundation for our digital world. Migrating digital content through new generations of storage media, making sense of its content, and ensuring that needed information is accessible now and for the foreseeable future constitute some of the most critical challenges of the Information Age. The San Diego Supercomputer Center (SDSC) is leading the development and deployment of a comprehensive infrastructure for managing, storing, preserving, and using digital data. In this talk, Berman discusses SDSC's approach to building and deploying data-oriented computational and data cyberinfrastructure, and describes the next generation of challenges and opportunities for the data that drives the Information Age.