CSCE Faculty Positions
The Computer Science and Computer Engineering (CSCE) Department of the University of Arkansas seeks outstanding individuals to fill the following two full-time, tenure-track, assistant professor positions. For complete information on these positions, visit: Faculty Positions
"Who Wrote this Document?"
Charles Nicholas
Department of Computer Science and Electrical Engineering
University of Maryland Baltimore County (UMBC)
nicholas@umbc.edu
Presentation:
Monday, Oct. 13, 2008
1:30-2:20 p.m.
JBHT 149
Questions of authorship have fascinated historians, theologians, and other scholars for centuries. In recent years statisticians and now at last computer scientists are also addressing these issues. We'll present an overview of the study of authorship attribution, including famous examples such as "The Federalist Papers", the various "Wizard of Oz" books, as well as the Hebrew Bible and the Christian New Testament. We'll present results from our own work in applying latent semantic analysis (LSA), a well-known technique in information retrieval, to the authorship attribution problem.
Dr. Nicholas is currently a Professor and Chair of the Department of Computer Science and Electrical Engineering at UMBC, where he has been on the faculty since 1988. He received the B.S. degree from the University of Michigan - Flint in 1979, and the M.S. and Ph.D. degrees from The Ohio State University in 1982 and 1988, respectively. In addition to his appointment at UMBC, Dr. Nicholas has held appointments at the National Institute of Standards and Technology (NIST), and the NASA Goddard Space Flight Center. He spent academic year 1996-97 on sabbatical at the National Security Agency.
Dr. Nicholas' research interests include electronic document processing, information retrieval, and software Engineering. His work has been funded by a number of agencies, including NASA, Maryland Industrial Partnerships, DARPA, AFOSR, and the Department of Defense. Dr. Nicholas has served five times as the General Chair of the ACM Conference on Information and Knowledge Management (CIKM). He also twice chaired the Workshop on Digital Document Processing. Dr. Nicholas is a member of the Board of Directors of UMBC Training Centers.
DARPA Grant Received
Dr. Jia Di received $305,326 from the Defense Advanced Research Projects Agency (DARPA) with Drs. Scott Smith and Alan Mantooth in ELEG department to study ultra-low power asynchronous circuit design. Power consumption has become one of the most critical design challenges to digital IC designers. Circuits operating in subthreshold region, i.e., the supply voltage, VDD, is below the transistors' threshold voltages, Vt, are able to achieve very low power consumption. However, reducing VDD causes the delay to increase drastically.
To improve the circuit speed, threshold voltages need to be scaled down with VDD, which causes the leakage power to increase. Multi-threshold CMOS (MTCMOS) uses transistors with different threshold voltages. The logic blocks consist of low-Vt transistors for better speed in active mode, while high-Vt transistors are used to gate the power in sleep mode to reduce leakage. Unfortunately, the prevailing MTCMOS synchronous circuits have three major drawbacks - "sleep-transistor" sizing, storage element data loss, and sleep signal generation.
This project aims to solve these problems by utilizing delay-insensitive asynchronous logic. A number of prototype circuits will be designed in both synchronous and asynchronous logic and will be fabricated onto two ICs, which will be tested for evaluating the effectiveness and efficiency of the proposed method.
Women in Technology
Women Shaping the Technology World. Money magazine has interesting profiles of 14 women who are shaping the world of technology. Read the article about the women at Google, ebay, and other top tech firms: http://money.cnn.com/galleries/2008/fortune/0809/gallery.mpw_valleygirls_qs.fortune/index.htmlThe new Valley Girls. The tech world has a new inner circle. They're young, they're global, they have power marriages and little kids. Read Fortune magazine's article about the women shaping the face of technology today: http://money.cnn.com/2008/09/25/news/newsmakers/sellers_valleygirls.fortune/index.htm
Student Job Opportunities and Internships
Check out the Job Posting listed under News for current job and internship announcements.
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Professor and Acxiom Database Chair in Engineering
Computer Science and Computer Engineering
