Regularly scheduled events are held at 4:10pm in SCI 319 with refreshments served 20 minutes prior in SCI 320.
August 31, 2015
Presenter: Dr. Brian Shelburne
Title: Balanced Ternary Notation
Abstract: There is base 10 and base 2 and base 17 (hexadecimal) notation but why not base 3 (ternary) and in particular balanced ternary notation? We'll examine what balanced ternary notation is and how to add, subtract, multiply, divide and take square roots. There is some evidence that balanced ternary notation is the most efficient of numbering systems, the so called "Goldilocks" of numbering systems, in that "base 2 is too small" and "base 10 is too big" so "base 3 is just right"!
May 4, 2015 - Student Projects
Presenter: Margo Morton
Title: Mouse Analysis Software in Java
Abstract: Peromyscus mice are ubiquitous across North America, and are used widely in ecological research. However these species live in the same geographic areas and can be difficult to distinguish even by trained biologists. Morphological identification and genetic sequencing are two current methods of distinguishing these mice, but a third method, computer classification may provide the rigor and accuracy ecologists desire. Mouse analysis software was developed to take an image of a mouse, and run a four-point analysis of fur color, tail to to body ratio, ear to body ratio, and dorsal-ventral tail gradient in order to get a species classification. This software has been shown to decrease the implicit bias in morphological classification, and improves upon previous classification methods.
Presenter: Victor Glasgo
Title: A Geometric Analy7sis of Chord Progressions
Abstract: We are able to represent pitches numerically and can then examine relationships among them. My research sought to define a distance function in order to minimize voice leading distances between chords. My research also included creating visual representations of the results in two and three dimensions.
Presenter: Tiffany Puff
Title: Application of Graph Theory to Cave Exploration
April 22, 2015 (WEDNESDAY)
Presenter: Dr. Jeffrey Weeks
Title: Visualizing Four Dimensions
Abstract: An introduction to a method for learning to visualize 4-dimensional space. Participants will work on some 4D visualization exercises in small groups, and present a few solutions using interactive 4D graphics software. The exercises range from elementary to advanced, so everyone from first-year undergraduates on up should find something they like.
April 6, 2015
Presenter: Eric Mann ('14), Android Developer- Marxent Labs LLC
Title: Mobile Application Development: A Team Effort
Abstract: Developing a mobile application for any platform for a company is a task for more than a single person. It takes a project manager to oversee everything is going correctly and to stay in contact with the customer. There are designers and UI/UX experts to create the interface for the application and make sure it stays usable and functions correctly. Developers then write the application to the standards of the customer, designers, and UI/UX experts. Everything must also be done in a specific timeline. The fun doesn't end there, however. Maintenance is always occurring to send out updates to keep the app functioning correctly and stay fresh where the entire process is repeated
February 23, 2015
Presenter: Steve Dennett ('07), Manager Crew Resource Planning - NetJets, Inc.
Title: From Algorithms to Aviation: Problem Solving in the Private Aviation Industry
Abstract: NetJets Inc., a Berkshire Hathaway company, is the worldwide leader in private aviation services. With more than 700 aircraft, 3,800 crewmembers, 325 thousand flights per year and constantly changing demands from our clients, complex business problems requiring creative solutions emerge on a daily basis. NetJets employs analysts throughout the business to tackle these problems, which often have mathematical, statistical and computer science based solutions. In this talk we will discuss two such problems, one using graph theory to optimize crew pairings and another employing statistics to identify aircraft with short term reliability issues
February 9, 2015
Presenter: Dr. Doug Andrews
Title: Error Bars: A Statistical Folk Remedy
Abstract: Error bars are visual representations of certain kinds of intervals. Use of such error bars is a relatively recent development that emerged outside the statistical mainstream. This talk will describe the different types of error bars in use, the tasks for which they’re used, why they don’t really mean what most users think they mean, and what stat tools work better for each of those tasks. The highlight of the talk, however, will be a joke by Dr. Ray Dudek (possibly in absentia).
January 26, 2015
Presenter: Dr. Bill Higgins
Title: The Mathematics of Fairness
Abstract: The settlement of an estate among heirs, division of property following a divorce, subdivision of land among competing claimants and dividing cake or candy among children are all problems of fair division. In this talk, we’ll discuss how to define fairness and present some “fair-division schemes” developed by Polish mathematician Hugo Steinhaus and others to tackle such problems.
December 8, 2014 - Student Senior Projects:
Presenter: Harley Shugart
Title: Intrusion Detection in Mobile Wireless Ad Hoc Networks
Abstract: We study the use of different movement patterns for intruder detection using sensors in a mobile wireless ad hoc network to address the shortcomings of a random movement pattern for intruder detection and interception. Previous research has shown that a random movement pattern has a high intruder detection rate, but the sensors are unable to work together to intercept an intruder because one sensor does not know the location of another. We propose that through the implementation of a synchronized pseudo random movement pattern a comparable detection rate to a random movement pattern can be achieved.
Presenter: Hieu Dang
Title: Application of the Implicit Function Theorem on Comparative Statics Analysis
Abstract: Comparative statics analysis is a widely used technique in economics to predict and test the outcome of an economic policy. Basically, the technique is concerned with the comparison of different equilibrium, before and after a change in some exogenous variables. In this presentation, I will briefly introduce the Implicit Function Theorem, which is the main theory behind the technique. In addition, I will also apply the theorem to carry out a comparative statics analysis of the Investment Saving – Liquidity Preference Money Supply (IS-LM) model.
Presenter: Emily Bast, Sarah Cummings, MaryAnn White (Noyce Interns at PNNL)
Title: Internsthips at the Pacific Northwest National Labratory
Abstract: Three Wittenberg Noyce Scholars will talk briefly about what the Noyce Scholarship, what their time at PNNL looked like, and individually give a brief overview of each of their projects.
November 24, 2014:
Presenter: Wendy Smiseck, Director of Career Services
Title: Networking and Job Seeking - Connecting Your Way
Abstract: There is some truth to the old phrase, “It’s not what you know, it’s who you know.” In today’s job market, while all jobs are posted there are pipelines to those jobs – contacts. Connecting with Wittenberg alumni as well as with others in your field is the key to finding meaningful employment (and internships) in a global market. Learn more about how to use LinkedIn and other forms of online networking to build your contacts and working relationships to better aid you in finding great opportunities.
November 10, 2014:
Presenter: Visiting Asst. Professor Alyssa Armstrong
Title: An Introduction to Lie ALgebra & Representation Theory
Abstract: Lie theory was developed in the 19th century to study the symmetries that arise in nature. It was found that a Lie algebra was an accessible tool for studying these symmetries, and mathematicians began classifying all finite-dimensional Lie algebras. The field of representation theory stemmed from studying the structure of a Lie algebra by representing their elements as matrices. I will give a brief introduction to Lie algebras and their representation theory through the examination of sl(2,C), the set of 2x2 traceless matrices. Exposure to matrices and vector spaces is the only recommended background to understand these concepts within Lie theory; however I will review some of the recommended theory during the talk.
October 31 – Nov 1, 2014 – Ohio Section Mathematical Assn of America Fall Conference
October 22 (Wednesday) 2014: Advising SMACCM (Pizza!!)
October 6, 2014:
Presenter: Visiting Asst. Professor Becca Winarski
Title: Braid Groups and Mapping Class Groups
Abstract: Braid groups and mapping class groups have been studied since the 1920s. Elements of braid groups can be visualized as strands of strings passing over each other like a braid in someone's hair. An element of the mapping class group is represented by a continuous map of a surface to itself. The descriptions of these groups may seem completely different, but there are some surprising parallels. In fact, it turns out that braid groups can be described as mapping class groups and vice versa.
September 22, 2014:
Presenter: Matthew Maloney - Case Western Reserve
Title: Operations Research and Supply Chain – How Quantitative Skills can better prepare you for your future career.
Abstract: Matthew Maloney is Director of Operations Research and Supply Chain Master’s Program at Case Western Reserve University. Matt works with students on professional and personal development and with corporate partners to help students find internships and practical experience, as well as permanent jobs. Matt will discuss the quantitative skills and experience that corporate America looks for in new college graduates.
September 8, 2014:
Presenter: Professor Brian Shelburne
Title: A Brief Introduction to Julia and Mandelbrot Sets
Abstract: One of the invited speakers for the MAA meeting to be held at Wittenberg later this fall is Robert Devaney of Boston University who is known for his work in chaotic dynamical system. One of his talks is titled ”The Fractal Geometry of the Mandelbrot Set”. It might be useful for learn a bit about the Mandelbrot before hearing Professor Devaney.