An Improved Overflow Detection Algorithm in Residue Number Systems

On November 16, at 4pm Dr. Bob Kramer will present his work on Residue Number Systems in Meshal Hall Rm. 337.

Title: An Improved Overflow Detection Algorithm in Residue Number Systems

Abstract: Residue Number Systems (RNS) provide a highly parallelizable, carry-free method for performing arithmetic with integers that are far larger than a machine’s native word size. While addition, subtraction, multiplication and certain divisions are easily performed operations within an RNS, other operations such as general division and comparison are far more time consuming. This talk presents an improved method for performing overflow detection after addition and subtraction, which forms the basis of comparison of values.

Next meeting: 10/15/14!

The next ACM meeting is Wednesday at 4pm in Meshel Hall room 338. Joe Duncko is going to be talking about Bitcoin this time around!

Also, there’ll be a HackYSU meeting right after (about 5pm) (hopefully) in the same room!

Next Meeting planned for October 1st 2014

  • Time –  4:00 P.M.
  • Date – Wednesday, October 1, 2014
  • Venue – Meshel Hall 338
  • Brief Description – Many people use and rely on “open source” software projects. What does this really mean? Learn how to get involved in open source software and why this is beneficial not only to open source software, but to you (the contributor) as well.

Last meeting of the semester!

Join us today in Meshel 337 at YSU for a talk by Jim from the Youngstown Business Incubator about how to create a startup without spending any money out of your pocket.

It is the last meeting of the semester and snacks and soda will be provided. Hope to see you there!

Introduction to Functional Programming – Wednesday April 16, 2014

Ricky Elrod will debunk some myths about what functional programming is and will discuss how it is used to write scalable, compositional programs with less (or depending on the environment used, provably no) bugs.

Only basic familiarity with a java-like syntax is required.
Stop by to learn more.
Time: 5:00 P.M.
Date: Wednesday, April 16, 2014
Venue: Meshel Hall 337

Dr. Matthew Shreve to talk at YSU on Friday, 4/11/2014 at 5pm

A Talk by a YSU Graduate on Automatic Macro and Micro Facial Expression Spotting and Applications

Abstract: Automatically determining the temporal characteristics of facial expressions has extensive application domains such as human-machine interfaces for emotion recognition, face identification, as well as medical analysis. However, many papers in the literature have not addressed the step of determining when such expressions occur. This talk will address the problem of automatically segmenting macro- and micro-expressions frames (or retrieving the expression intervals) in video sequences, without the need for training a model on a specific subset of such expressions. The proposed method exploits the non-rigid facial motion that occurs during facial expressions by modeling the strain observed during the elastic deformation of facial skin tissue. The method is capable of spotting both macro expressions which are typically associated with emotions such as happiness, sadness, anger, disgust, and surprise, and rapid micro- expressions which are typically, but not always, associated with semi-suppressed macro-expressions. Additionally, the method has been used to automatically retrieve strain maps generated from apex of expressions for human identification. A novel 3-D surface strain estimation algorithm using commodity 3-D sensors aligned with an HD camera will also be presented.


Speaker Bio

Matthew Shreve is a research scientist in image and video processing at the Xerox Research Center in Webster, N.Y. He currently works in video analytics applied to surveillance technologies. His research interests include computer vision, image processing, and pattern recognition. He holds a Ph.D. in Computer Science from the University of South Florida (2013) and a M.S. degree in Mathematics at Youngstown State University (2007). Since joining Xerox in 2011 and 2012 as an intern, and a full-time employee in 2013, Matthew has been involved in several projects including tracking the movements, body gestures, behavior, and facial expressions of customers in a retail environment, as well as outdoor vehicle monitoring that includes tracking and recognizing criminal activity such as vandalism. He also serves as an adjunct faculty member at the University of Rochester where he teaches a course on video processing. He has co-authored several conference and journal publications, and currently has 10 pending U.S. Patents.

Time: 5:00 P.M.

Date: Friday, April 11, 2014

Venue: Meshel Hall 337

What is LaTeX anyway? Wednesday, April 2nd, 2014 YSU ACM Meeting

Sarah Ritchey, a double major in CS and Math, will explain and demonstrate the
use of LaTeX to prepare documents ranging from a simple class paper to following
a more detailed template. She will also talk about how it differs from Microsoft
Come and find out more and get started with using LaTeX for your writing needs.
Time: 5:00 P.M.
Date: Wednesday, April 2, 2014
Venue: Meshel Hall 337


Hope to see you there!

Youngstown Business Incubator (YBI) Tour on March 19th, 2014

Jim Cossler, CEO and Chief Evangelist of YBI, gives us a tour of the YBI premises and talks about their portfolio companies and what it is like to work there.

The YBI was named 11th Best University Affiliated Business Incubator in the World by the University Business Incubator Index (UBII).

Visit for more information about the incubator.

Don’t miss this excellent opportunity to get acquainted with the YBI!

We will be meeting in the YBI Lobby at 241 W. Federal Street, Youngstown. We will meet at 5:00 PM on Wednesday, March 19th, 2014.

Please arrive on time and note that downtown parking is limited. Consider walking from a campus building. It is a 15 minute walk from Meshel Hall.See you there!

Younstown State University's Student Association for Computing Machinery