Tuesday, September 30th, 2014

Student Talk Series: Allison Gibson, Nielsen Holdings; October 2nd in Olin 268 @ noon

Title: Twitter’s Influence on TV Ratings, And Other TV Mathematics Abstract: Nielsen’s TV Ratings are used as the currency with which key business decisions are made across the media industry. What TV programs remain on the air, which advertisements you see during commercial breaks, and when you are able to watch your favorite shows on Hulu are all questions answered by analyzing ratings and other Nielsen data. Recent technology has rapidly changed how and when people watch TV, thus quickly increasing the demand for enhanced data to give TV Networks and Advertisers a thorough understanding of the current TV landscape. Using […]

Continue reading »

Sunday, September 14th, 2014

Student Event: A Mathematical Mandala with Nancy Cleaver; October 4, @1pm, Smith Quad

Artist Nancy Cleaver has created a (very) large mathematical mandala for the Bucknell University Mathematics Department. Her mandalas contain words, symbols or numbers. Please help us color the mandala or just stop by to find the hidden object and lend us some moral support. We’ll provide the chalk and the sidewalk. All we ask is that you color within the lines. Hope to see you there!  

Continue reading »

Friday, September 12th, 2014

Distinguished Visiting Professor Talk Series: Nema Dean, University of Glasgow, September 17th @4pm in Olin 372

Title: Identifying Boundaries in Spatial Modelling for Disease Mapping Abstract: The aim of disease mapping is to estimate the spatial pattern in disease risk across a set of areal units, in order to identify units which have elevated disease risk. Existing methods use Bayesian hierarchical models with spatially smooth conditional autoregressive priors to estimate disease risk, but these methods cannot identify the geographical extent of spatially contiguous high-risk clusters of areal units. We propose a two stage approach, which first produces a set of potential cluster structures for the data and then chooses the optimal structure by fitting an extension of the […]

Continue reading »

Friday, September 12th, 2014

Distinguished Visiting Professor Talk Series: Nema Dean, University of Glasgow, September 16th @ 4 PM in Olin 372

Title:  How many groups?  Visual tools for assessing cluster structure in data. Abstract: Cluster analysis is a set of methods designed to explore and find unknown group structure in (multivariate) data. There are a wide variety of methods available, the application of which can result in many different proposed cluster structures. Particularly for more heuristic methods (e.g. hierarchical clustering), it can be difficult to make an objective decision on which method/number of clusters gives the “best” answer. One alternative that claims to address this flaw is the model-based clustering methodology – the application of, often Gaussian, mixture models usually with some […]

Continue reading »

Thursday, September 4th, 2014

Student Talk Series: Tony DeRose, Pixar Animation Studio, September 18th @ noon in Olin 268

Title: Wavelets in computer graphics Abstract: Wavelets are an important mathematical tool that has found uses in many scientific and engineering disciplines. They are an important technique for use in computer graphics and the closely related field of image processing. In this lecture I’ll provide an introduction to the theory of wavelets, and I’ll highlight their use to solve a variety of computer graphics problems. Speaker biography: Tony DeRose is currently a Senior Scientist and lead of the Research Group at Pixar Animation Studios. He received a BS in Physics in from the University of California, Davis, and a Ph.D. in […]

Continue reading »

Close

Places I've Been

The following links are virtual breadcrumbs marking the 12 most recent pages you have visited in Bucknell.edu. If you want to remember a specific page forever click the pin in the top right corner and we will be sure not to replace it. Close this message.