BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Vassar Math & Stats Events Page - ECPv6.17.3.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://pages.vassar.edu/mathstats
X-WR-CALDESC:Events for Vassar Math & Stats Events Page
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20220313T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20221106T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20230312T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20231105T060000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:20240310T070000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:20241103T060000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231113T160000
DTEND;TZID=America/New_York:20231113T170000
DTSTAMP:20231130T154235Z
CREATED:20231106T025339Z
LAST-MODIFIED:20231130T154235Z
UID:295-1699891200-1699894800@pages.vassar.edu
SUMMARY:(Colloquium) Shaoyang Ning\, Williams College
DESCRIPTION:Colloquium Talk\nShaoyang Ning\, Williams College\nMonday November 13\, 2023 at 4PM\nRocky  312 \nTitle: Using Google search data for localized flu tracking \nAbstract: Big data from the Internet has great potential to track social and economic events at multiple geographical levels. Focusing on localized (regional\, state-level) tracking the seasonal influenza epidemics within U.S.\, I will introduce a statistical model that efficiently combines publicly available Google search data at different geographical resolutions with traditional influenza surveillance data from the Centers for Disease Control and Prevention. Our method outperforms time-series-based influenza tracking methods. Our model is robust and easy to implement\, with the flexibility to incorporate additional information from other sources and/or resolutions\, making it generally applicable to tracking other social\, economic or public health events (such as COVID-19) at the regional or local level.
URL:https://pages.vassar.edu/mathstats/event/colloquium-shaoyang-ning-williams-college/
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231110T170000
DTEND;TZID=America/New_York:20231110T180000
DTSTAMP:20231109T012745Z
CREATED:20230928T014008Z
LAST-MODIFIED:20231109T012745Z
UID:239-1699635600-1699639200@pages.vassar.edu
SUMMARY:(DSS Colloquium) Rob Williams\, Bayer Crop Science
DESCRIPTION:Data Science & Society (DSS) Colloquium Talk\nRob Williams\, Data Scientist Remote Sensing at Bayer Crop Science\nFriday November 10\, 2023 at 5PM\nNew England 206 \nTitle: Data Science for Plants \nFor the full DSS Colloquium Series Schedule\, visit: https://pages.vassar.edu/dss/colloquium-series-schedule/
URL:https://pages.vassar.edu/mathstats/event/dss-colloquium-rob-williams-bayer-crop-science/
CATEGORIES:DSS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231110T160000
DTEND;TZID=America/New_York:20231110T170000
DTSTAMP:20231108T144126Z
CREATED:20231106T025239Z
LAST-MODIFIED:20231108T144126Z
UID:292-1699632000-1699635600@pages.vassar.edu
SUMMARY:(Colloquium) Hung Tong\, The University of Alabama
DESCRIPTION:Colloquium Talk\nHung Tong\, The University of Alabama\nFriday November 10\, 2023 at 4PM\nRocky  312 \nTitle: Robust and Flexible Model-Based Clustering for Incomplete Data \nAbstract: Model-based clustering is an important class of cluster analysis that aims to produce smaller groups of similar observations in a data set by means of finite mixture models. Since real data often contain outliers\, exhibit skewness\, and come in the form of partially observed records\, developing robust and flexible model-based clustering methods for incomplete data has been a particularly active research area in recent years. Herein\, we introduce the contaminated normal mixture for robust clustering as well as our newly developed framework for fitting it to data sets with values missing at random. Regarding flexible clustering\, we discuss our work in extending special and limiting cases of the generalized hyperbolic mixture to both complete and incomplete data sets. All these mixture models are implemented and available in the R package MixtureMissing\, offering a wide range of model-based clustering options to address various data challenges of researchers.
URL:https://pages.vassar.edu/mathstats/event/colloquium-hung-tong-the-university-of-alabama/
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231109T160000
DTEND;TZID=America/New_York:20231109T170000
DTSTAMP:20231101T133122Z
CREATED:20231101T133122Z
LAST-MODIFIED:20231101T133122Z
UID:285-1699545600-1699549200@pages.vassar.edu
SUMMARY:Let's Talk About Math Grad School
DESCRIPTION:Curious about pursuing graduate studies in applied math\, pure math\, or statistics but not sure what that entails or requires? Join us on Thursday\, November 9th at 4pm in Rocky 200 for an information session on the what\, why\, and how of math grad school followed by a Q&A with the faculty. There will be free pizza.
URL:https://pages.vassar.edu/mathstats/event/lets-talk-about-math-grad-school/
LOCATION:Rockefeller Hall 200
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231106T160000
DTEND;TZID=America/New_York:20231106T170000
DTSTAMP:20231106T025139Z
CREATED:20231106T024908Z
LAST-MODIFIED:20231106T025139Z
UID:290-1699286400-1699290000@pages.vassar.edu
SUMMARY:(Colloquium) Katherine Brumberg\, University of Pennsylvania
DESCRIPTION:Colloquium Talk\nKatherine Brumberg\, University of Pennsylvania\, Wharton School\nMonday November 6\, 2023 at 4PM\nRocky  312 \nTitle: Optimal Stratification to Address Selection Bias in Observational Studies \nAbstract: Randomized controlled trials are the gold standard for determining a treatment effect. However\, they are oftentimes too costly\, infeasible\, or unethical to carry out. In such situations\, we turn to observational studies\, where the treatment assignment is not randomized. This results in selection bias\, leading to incomparable treatment and control groups. One of the most common techniques to address this is propensity score stratification\, where we form strata that contain both treated and control individuals who look similar initially so that we can calculate a treatment effect within each stratum. However\, propensity score stratification may leave residual imbalances in the covariate distributions between the treated and control groups. Our new technique of optimal refinement addresses this by splitting each propensity score stratum in two in such a way that optimizes the resulting covariate balance. \n\nIn this talk\, we will assume no background knowledge\, starting with a brief overview of the foundational ideas of randomized controlled trials\, observational studies\, stratification\, propensity scores\, and standardized mean differences.  We will then move to discussing our new technique of optimal refinement. We will start by carefully defining the objective as an integer program. Because solving integer programs is often computationally intractable\, we will use randomized rounding\, an approximation algorithm\, to obtain a provably good solution. We will look at the performance of this method both in simulations and via a real-world example studying the effect of right heart catheterization on 30-day mortality.
URL:https://pages.vassar.edu/mathstats/event/colloquium-katherine-brumberg-university-of-pennsylvania/
LOCATION:Rockefeller Hall 312
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231103T150000
DTEND;TZID=America/New_York:20231103T160000
DTSTAMP:20231025T165207Z
CREATED:20230926T031855Z
LAST-MODIFIED:20231025T165207Z
UID:163-1699023600-1699027200@pages.vassar.edu
SUMMARY:(LAVA) Philani Mpofu\, VC ’12
DESCRIPTION:LAVA Talk on Biostatistics & Epidemiology (graduate school and industry)\nwith Philani Mpofu (VC ’12)\, Flatiron Health\nFriday\, November 3\, 2023 at 3PM\nRocky 310 \n \nAbout Philani:\nPhilani Mpofu received his BA in Mathematics and Economics from Vassar College and his PhD in Biostatistics from Indiana University in 2020. His PhD focused on analyzing competing risks survival data in the presence of outcome misclassification in populations living with HIV/AIDS. Currently\, he is a Senior Quantitative Scientist at Flatiron Health (NY)\, where he researches evidence generation using oncology data derived from electronic health records.
URL:https://pages.vassar.edu/mathstats/event/lava-talk-2/
LOCATION:Rockefeller Hall 310
CATEGORIES:LAVA
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231102T150000
DTEND;TZID=America/New_York:20231102T160000
DTSTAMP:20231026T135616Z
CREATED:20230926T031404Z
LAST-MODIFIED:20231026T135616Z
UID:156-1698937200-1698940800@pages.vassar.edu
SUMMARY:(Colloquium) Karen Parshall\, University of Virginia
DESCRIPTION:Colloquium Talk\nProfessor Karen Parshall\, University of Virginia\nThursday November 2nd\, 2023 at 3PM\nRocky 300 \n \nTitle: Growing Research-Level Mathematics in 1930s America: An Historical Paradox \nAbstract: World War I had marked a break in business as usual within the American mathematical research community. In its aftermath\, there was a stirring sense of entering into “a new era in the development of our science.”  And then the stock market crashed. Would it be possible in such newly straitened times to sustain into the 1930s the momentum that American mathematicians had managed to build in the 1920s? This talk will explore the contours of an answer to that question.
URL:https://pages.vassar.edu/mathstats/event/colloquium-talk-3/
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231027T150000
DTEND;TZID=America/New_York:20231027T160000
DTSTAMP:20231025T165142Z
CREATED:20230926T031724Z
LAST-MODIFIED:20231025T165142Z
UID:160-1698418800-1698422400@pages.vassar.edu
SUMMARY:(LAVA) Paige Ioppolo\, VC ’14
DESCRIPTION:LAVA Talk on Mathematics Education \nwith Paige Ioppolo (VC ’14)\, Trevor Day School\nFriday October 27\, 2023 at 3PM \nRocky 310 \n \nAbout Paige:\nPaige graduated from Vassar in 2014. While at Vassar she majored in math and pursued her teaching certification through the Dean’s Program. She was one of the first Q-Tutors at Vassar and helped make the Q-Center what it is today. In the fall of 2014 she completed her student teaching at Poughkeepsie Day School and then was hired there to teach spring semester. Paige just began her seventh year teaching high school math at Trevor Day School in Manhattan. Paige teaches Algebra and Geometry along with her favorite subject\, Calculus.
URL:https://pages.vassar.edu/mathstats/event/lava-talk/
LOCATION:Rockefeller Hall 310
CATEGORIES:LAVA
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231026T150000
DTEND;TZID=America/New_York:20231026T160000
DTSTAMP:20231025T185628Z
CREATED:20230926T031308Z
LAST-MODIFIED:20231025T185628Z
UID:154-1698332400-1698336000@pages.vassar.edu
SUMMARY:(Colloquium) Joe Kraisler\, Amherst College
DESCRIPTION:Colloquium Talk\nProfessor Joe Kraisler\, Amherst College\nThursday October 26\, 2023 at 3PM\nRocky 300 \n \nTitle: Topological Insulators and the SSH Model \nAbstract: Electronic band theory was one of the early 20th century achievements of quantum mechanics and placed solids into three categories: conductors\, semiconductors\, and insulators. However\, starting in the 1980s with the discovery of the Quantum Hall Effect\, a new phase of matter known as Topological Insulators (TIs) were theorized and eventually realized. These materials act as insulators in the interior\, or bulk\, while allowing electrons to freely move along the boundary\, or edge\, of the material. Additionally\, there is a relationship between the a) number of states which exist on the boundary and b) a property of the interior which is protected under small defects. This relationship is often referred to as the Bulk-Edge Correspondence. \nWe will study the simplest example of a 1-dimensional topological insulator\, the SSH (Su-Schrieffer-Heeger) model of polyacetylene\, and prove the bulk edge correspondence for this particular system. No previous physics knowledge is required.
URL:https://pages.vassar.edu/mathstats/event/colloquium-talk-2/
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231011T150000
DTEND;TZID=America/New_York:20231011T160000
DTSTAMP:20231025T185533Z
CREATED:20230927T193743Z
LAST-MODIFIED:20231025T185533Z
UID:189-1697036400-1697040000@pages.vassar.edu
SUMMARY:(Colloquium) Pablo Soberón\, CUNY Baruch College
DESCRIPTION:Colloquium talk\nProfessor Pablo Soberón\, CUNY Baruch College\nWednesday October 11th at 3pm\nRocky 310 \n \nTitle: Art Galleries\, Voting Theory\, and Convex Sets \nAbstract: The study of intersection patterns of convex sets is a central topic in combinatorial geometry.  In this talk\, we will discuss the applications of this area to two different topics: art galleries and voting theory.  In art gallery problems we seek conditions on the blueprint of an art gallery that guarantee that few guards can keep every painting safe.  In voting theory\, given a group of people such that every person has an interval of tolerance in different topics\, we seek conditions that guarantee that all such intervals overlap.  We focus on connections of these two topics with quantitative Helly theorems\, which characterize finite families of convex sets whose intersection is not only non-empty\, but quantifiably large. \n 
URL:https://pages.vassar.edu/mathstats/event/colloquium-pablo-soberon-cuny-baruch-college/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231006T160000
DTEND;TZID=America/New_York:20231006T170000
DTSTAMP:20230928T013801Z
CREATED:20230928T013726Z
LAST-MODIFIED:20230928T013801Z
UID:232-1696608000-1696611600@pages.vassar.edu
SUMMARY:(DSS Colloquium) Jenna Lemonias\, The Atlantic
DESCRIPTION:Data Science & Society (DSS) Colloquium Talk with Jenna Lemonias\, Executive Director\, Data Science at The Atlantic\, on Friday October 6 at 4pm in New England 206.  Title of Talk: Our personalized web: The role — and consequences — of recommendation algorithms for news
URL:https://pages.vassar.edu/mathstats/event/dss-jenna-lemonias-the-atlantic/
LOCATION:New England 206
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20231003T160000
DTEND;TZID=America/New_York:20231003T170000
DTSTAMP:20230928T013632Z
CREATED:20230925T163351Z
LAST-MODIFIED:20230928T013632Z
UID:119-1696348800-1696352400@pages.vassar.edu
SUMMARY:(Colloquium) Colin Adams\, Williams College
DESCRIPTION:Join us for our first colloquium talk of the semester by Professor Colin Adams of Williams College on Tuesday October 3 at 4PM in Rocky 203. \n \nBlown Away: What Knot to do When Sailing \nColin Adams\nWilliams College \nBeing a tale of adventure on the high seas involving great risk to the tale teller\, and how an understanding of the mathematical theory of knots saved his bacon. No nautical or mathematical background assumed! \nTuesday\, October 3rd\, 4pm\nRocky 203
URL:https://pages.vassar.edu/mathstats/event/colloquium-talk/
LOCATION:Rockefeller Hall 203
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20230929T200000
DTEND;TZID=America/New_York:20230929T230000
DTSTAMP:20230927T195425Z
CREATED:20230925T160759Z
LAST-MODIFIED:20230927T195425Z
UID:105-1696017600-1696028400@pages.vassar.edu
SUMMARY:(Movie Night) The Imitation Game
DESCRIPTION:Join friends this Friday September 29 at 8PM in Rocky 300 to watch The Imitation Game over free cookies & popcorn! Open to all.
URL:https://pages.vassar.edu/mathstats/event/105/
LOCATION:Rockefeller Hall 300
CATEGORIES:Student
END:VEVENT
END:VCALENDAR