Professor Thomas G. Robertazzi

Current Research:

  • Petascale and Exascale Computing:

The cutting edge of large scientific experiments is the generation of petabytes and exabytes of data. Such large volumes of data require advances in computing, networking and software. Spinoffs to engineering and business apllications should follow.

    • Brokered E-Commerce

This was a NSF-funded effort to develop theory and software for a broker that would allow developers of algorithms to be matched with people/organizations who would want to use them.

Click Here For The Brokered E-Commerce Research Page

    • Performance Evaluation and Optimization:

Ongoing work in performance evaluation involves creating and solving deterministic and statistical models of networked computers as well as related applications such as those in e-commerce and the sciences.

For the past 22 years work at Stony Brook has developed a very tractable model of scheduling divisible (partitionable) loads. The methodology is very well suited to integrating communication and computation issues. A world wide publication list on this topic is available at this web site.

    • Distributed Systems:

The decreasing cost and size of powerful computers and advances in networking technology make this an exciting time to do research on distributed systems. Ongoing work includes computational grids, wireless sensor networks and ad hoc radio networks.

Divisible Load Scheduling Theory Publications:

Markov Chain Algebraic Topology:

This research seeks to gain an understanding of the fine structure of Markov chains, particularly in terms of conditions leading to tractable product form solutions. Its major successes were in (1) relating Markov chain structure and labeling to the chain flow structure and product form solutions (2) a new family of stochastic Petri net with product form solution (3) identifying recursive structure in certain non-product form queueing models leading to efficient solutions for equilibrium probabilities and (4) identifying a simple flow structure for non-product form networks.

Science and Engineering Living Learning Center:

Prof. Robertazzi was the faculty director of the Science and Engineering Living Learning Center at Stony Brook for about 13 years. This was an academic unit in the O'Neil residence hall that offered courses, minors and hosted speakers to bring an academic dimension to residential life. In fact over 150 speakers in science, engineering, the liberal arts and medicine gave presentations during Prof. Robertazzi's tenure as faculty director. Two minors, one in interdiscplinary science and engineering and one in technical leadership, were available to all Stony Brook undergraduates. Due to budgetary problems, the Center is now inactive. For his work in the Living Learning Center, Prof. Robertazzi received the Long Island IEEE section Papoulis Outstanding Educator Award in 2012.

Books by Dr. T.G. Robertazzi:

Click here to see books

Biography:

Click here to see Dr. Robertazzi's biography

Some Papers:

  • S.H. Kim and T.G. Robertazzi,"Spatial Network Traffic Intensity," Conference on Information Sciences and Systems, Princeton University, Princeton N.J, March 2000, short paper.
  • K. Ko and T.G. Robertazzi,"Record Search Time Evaluation," Conference on Information Sciences and Systems, Princeton University, Princeton N.J, March 2000, short paper.
  • S-H. Kim and T.G. Robertazzi,"Mobile Agent Modeling," 2002 Conference on Information Sciences and Systems, Princeton University, Princeton N.J., March 2002. Journal version: "Modeling Mobile Agent Behavior," Computers and Mathematics with Applications, vol. 51, issues 6-7, March-April 2006, pp. 951-966.

Upcoming Courses taught by T. Robertazzi:

Fall 2012:

 

 

Spring 2012:

Summer Courses

Contact Information:

Thomas Robertazzi

Professor

 

Phone: (631) 632-8412/8400

Fax: (631) 632-8494

Email: tom AT ece.sunysb.edu

Mailing Address:

Department of Electrical and Computer Engineering

State University of New York at Stony Brook

Stony Brook, New York 11794-2350

 A note to students interested in working with T. Robertazzi:

Last modified April 23, 2012