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AMSTATNEWS the Membership Magazine of the American Statistical Association •
May 2021 • Issue #527 AMSTATNEWS The Membership Magazine of the American Statistical Association • http://magazine.amstat.org 2021 COPSS AWARD WINNERS ALSO: ASA, International Community Continue to Decry Georgiou Persecution Birth of an ASA Outreach Group: The Origins of JEDI AMSTATNEWS MAY 2021 • ISSUE #527 Executive Director Ron Wasserstein: [email protected] Associate Executive Director and Director of Operations Stephen Porzio: [email protected] features Senior Advisor for Statistics Communication and Media Innovation 3 President’s Corner Regina Nuzzo: [email protected] 5 ASA, International Community Continue to Decry Director of Science Policy Georgiou Persecution Steve Pierson: [email protected] Director of Strategic Initiatives and Outreach 8 What a Year! Practical Significance Celebrates Resilient Donna LaLonde: [email protected] Class of 2021 Director of Education 9 Significance Launches Data Economy Series with April Issue Rebecca Nichols: [email protected] 10 CHANCE Highlights: Spring Issue Features Economic Managing Editor Impact of COVID-19, Kullback’s Career, Sharing Data Megan Murphy: [email protected] 11 Forget March Madness! Students Test Probability Skills Editor and Content Strategist with March Randomness Val Nirala: [email protected] 12 My ASA Story: James Cochran Advertising Manager Joyce Narine: [email protected] 14 StatFest Back for 21st Year in 2021 Production Coordinators/Graphic Designers 15 Birth of an ASA Outreach Group: The Origins of JEDI Olivia Brown: [email protected] Megan Ruyle: [email protected] 18 2021 COPSS Award Winners Contributing Staff Members 23 A Story of COVID-19, Mentoring, and West Virginia Kim Gilliam Amstat News welcomes news items and letters from readers on matters of interest to the association and the profession. -
Higher-Order Asymptotics
Higher-Order Asymptotics Todd Kuffner Washington University in St. Louis WHOA-PSI 2016 1 / 113 First- and Higher-Order Asymptotics Classical Asymptotics in Statistics: available sample size n ! 1 First-Order Asymptotic Theory: asymptotic statements that are correct to order O(n−1=2) Higher-Order Asymptotics: refinements to first-order results 1st order 2nd order 3rd order kth order error O(n−1=2) O(n−1) O(n−3=2) O(n−k=2) or or or or o(1) o(n−1=2) o(n−1) o(n−(k−1)=2) Why would anyone care? deeper understanding more accurate inference compare different approaches (which agree to first order) 2 / 113 Points of Emphasis Convergence pointwise or uniform? Error absolute or relative? Deviation region moderate or large? 3 / 113 Common Goals Refinements for better small-sample performance Example Edgeworth expansion (absolute error) Example Barndorff-Nielsen’s R∗ Accurate Approximation Example saddlepoint methods (relative error) Example Laplace approximation Comparative Asymptotics Example probability matching priors Example conditional vs. unconditional frequentist inference Example comparing analytic and bootstrap procedures Deeper Understanding Example sources of inaccuracy in first-order theory Example nuisance parameter effects 4 / 113 Is this relevant for high-dimensional statistical models? The Classical asymptotic regime is when the parameter dimension p is fixed and the available sample size n ! 1. What if p < n or p is close to n? 1. Find a meaningful non-asymptotic analysis of the statistical procedure which works for any n or p (concentration inequalities) 2. Allow both n ! 1 and p ! 1. 5 / 113 Some First-Order Theory Univariate (classical) CLT: Assume X1;X2;::: are i.i.d. -
IMS Bulletin July/August 2004
Volume 33 Issue 4 IMS Bulletin July/August 2004 A Message from the (new) President Louis H Y Chen, Director of the Institute CONTENTS for Mathematical Sciences at the 2-3 Members’ News; National University of Singapore, is the Contacting the IMS IMS President for 2004–05. He says: hen I was approached by the 4 Profi le: C F Jeff Wu WCommittee on Nominations in 5 IMS Election Results: January 2003 and asked if I would be President-Elect and Council willing to be a possible nominee for IMS 7 UK Research Assessment; President-Elect, I felt that it was a great Tweedie Travel Award honor for me. However, I could not help 8 Mini-meeting Reports but think that the outcome of the nomi- nation process would most likely be a 10 Project Euclid & Google nominee who is based in the US, because, 11 Calls Roundup except for Willem van Zwet, Nancy Reid of probabilists and statisticians. 14 IMS Meetings and Bernard Silverman, all the 68 past Although IMS is US-based, its infl u- Presidents of IMS were US-based. When ence goes far beyond the US due to its 20 Other Meetings and I was fi nally chosen as the nominee for several fi rst-rate publications and many Announcements President-Elect, I was pleased, not so high quality meetings. Also, IMS has 23 Employment much because I was chosen, but because I reduced membership dues for individuals Opportunities took it as a sign that the outlook of IMS in developing countries to encourage 25 International Calendar of was becoming more international. -
Renormalization and Effective Field Theory
Mathematical Surveys and Monographs Volume 170 Renormalization and Effective Field Theory Kevin Costello American Mathematical Society surv-170-costello-cov.indd 1 1/28/11 8:15 AM http://dx.doi.org/10.1090/surv/170 Renormalization and Effective Field Theory Mathematical Surveys and Monographs Volume 170 Renormalization and Effective Field Theory Kevin Costello American Mathematical Society Providence, Rhode Island EDITORIAL COMMITTEE Ralph L. Cohen, Chair MichaelA.Singer Eric M. Friedlander Benjamin Sudakov MichaelI.Weinstein 2010 Mathematics Subject Classification. Primary 81T13, 81T15, 81T17, 81T18, 81T20, 81T70. The author was partially supported by NSF grant 0706954 and an Alfred P. Sloan Fellowship. For additional information and updates on this book, visit www.ams.org/bookpages/surv-170 Library of Congress Cataloging-in-Publication Data Costello, Kevin. Renormalization and effective fieldtheory/KevinCostello. p. cm. — (Mathematical surveys and monographs ; v. 170) Includes bibliographical references. ISBN 978-0-8218-5288-0 (alk. paper) 1. Renormalization (Physics) 2. Quantum field theory. I. Title. QC174.17.R46C67 2011 530.143—dc22 2010047463 Copying and reprinting. Individual readers of this publication, and nonprofit libraries acting for them, are permitted to make fair use of the material, such as to copy a chapter for use in teaching or research. Permission is granted to quote brief passages from this publication in reviews, provided the customary acknowledgment of the source is given. Republication, systematic copying, or multiple reproduction of any material in this publication is permitted only under license from the American Mathematical Society. Requests for such permission should be addressed to the Acquisitions Department, American Mathematical Society, 201 Charles Street, Providence, Rhode Island 02904-2294 USA. -
Inside the Perimeter Is Published by Perimeter Institute for Theoretical Physics
the Perimeter fall/winter 2014 Skateboarding Physicist Seeks a Unified Theory of Self The Black Hole that Birthed the Big Bang The Beauty of Truth: A Chat with Savas Dimopoulos Subir Sachdev's Superconductivity Puzzles Editor Natasha Waxman [email protected] Contributing Authors Graphic Design Niayesh Afshordi Gabriela Secara Erin Bow Mike Brown Photographers & Artists Phil Froklage Tibra Ali Colin Hunter Justin Bishop Robert B. Mann Amanda Ferneyhough Razieh Pourhasan Liz Goheen Natasha Waxman Alioscia Hamma Jim McDonnell Copy Editors Gabriela Secara Tenille Bonoguore Tegan Sitler Erin Bow Mike Brown Colin Hunter Inside the Perimeter is published by Perimeter Institute for Theoretical Physics. www.perimeterinstitute.ca To subscribe, email us at [email protected]. 31 Caroline Street North, Waterloo, Ontario, Canada p: 519.569.7600 f: 519.569.7611 02 IN THIS ISSUE 04/ Young at Heart, Neil Turok 06/ Skateboarding Physicist Seeks a Unified Theory of Self,Colin Hunter 10/ Inspired by the Beauty of Math: A Chat with Kevin Costello, Colin Hunter 12/ The Black Hole that Birthed the Big Bang, Niayesh Afshordi, Robert B. Mann, and Razieh Pourhasan 14/ Is the Universe a Bubble?, Colin Hunter 15/ Probing Nature’s Building Blocks, Phil Froklage 16/ The Beauty of Truth: A Chat with Savas Dimopoulos, Colin Hunter 18/ Conference Reports 22/ Back to the Classroom, Erin Bow 24/ Finding the Door, Erin Bow 26/ "Bright Minds in Their Life’s Prime", Colin Hunter 28/ Anthology: The Portraits of Alioscia Hamma, Natasha Waxman 34/ Superconductivity Puzzles, Colin Hunter 36/ Particles 39/ Donor Profile: Amy Doofenbaker, Colin Hunter 40/ From the Black Hole Bistro, Erin Bow 42/ PI Kids are Asking, Erin Bow 03 neil’s notes Young at Heart n the cover of this issue, on the initial singularity from which everything the lip of a halfpipe, teeters emerged. -
BFF Workshop Participant List April 28 – May 1, 2019
BFF Workshop Participant List April 28 – May 1, 2019 Pierre Barbillon Gonzalo Garcia-Donato AgroParisTech Universidad de Castilla-La Mancha Samopriya Basu Edward George UNC - Chapel Hill Wharton, University of Pennsylvania Jim Berger Malay Ghosh Duke University University of Florida David R. Bickel Subhashis Ghoshal University of Ottawa North Carolina State University Alisa Bokulich Ruobin Gong Boston University Rutgers University Sudip Bose Mengyang Gu George Washington University Johns Hopkins University Fang Cai Yawen Guan Stanford University NC State University / SAMSI Hongyuan Cao Jan Hannig Florida State University UNC Chapel Hill Iain Carmichael Leah Henderson UNC Chapel Hill University of Groningen Jesse Clifton Wei Hu North Carolina State University Univeristy of California, Irvine Philip Dawid Michael Jordan University of Cambridge University of California, Berkeley David Dunson Kevin Kelly Duke University Carnegie Mellon University Anabel Forte-Deltell Todd Kuffner Universitat de Valencia Washington University, St. Louis Donald Fraser Subrata Kundu University of Toronto George Washington University BFF Workshop Participant List April 28 – May 1, 2019 Thomas Lee Shyamal Peddada University of California, Davis University of Pittsburgh Xinyi Li Elmor Peterson SAMSI Retired Gang Li Bruce Pitman University of North Carolina at Chapel University at Buffalo Hill Zhengling Qi Cong Lin University of North Carolina at Chapel East China Normal University Hill Regina Liu Nancy Reid Rutgers University University of Toronto Pulong Ma Ramchandra -
Curriculum Vitae
Curriculum Vitae Nancy Margaret Reid O.C. April, 2021 BIOGRAPHICAL INFORMATION Personal University Address: Department of Statistical Sciences University of Toronto 700 University Avenue 9th floor Toronto, Ontario M5S 1X6 Telephone: (416) 978-5046 Degrees 1974 B.Math University of Waterloo 1976 M.Sc. University of British Columbia 1979 Ph.D. Stanford University Thesis: “Influence functions for censored data” Supervisor: R.G. Miller, Jr. 2015 D.Math. (Honoris Causa) University of Waterloo Employment 1-3/2020 Visiting Professor SMRI University of Sydney 1-3/2020 Visiting Professor Monash University Melbourne 10-11/2012 Visiting Professor Statistical Science University College, London 2007-2021 Canada Research Chair Statistics University of Toronto 2003- University Professor Statistics University of Toronto 1988- Professor Statistics University of Toronto 2002-2003 Visiting Professor Mathematics EPF, Lausanne 1997-2002 Chair Statistics University of Toronto 1987- Tenured Statistics University of Toronto 1986-88 Associate Professor Statistics University of Toronto Appointed to School of Graduate Studies 1986/01-06 Visiting Associate Professor Mathematics Univ. of Texas at Austin 1985/07-12 Visiting Associate Professor Biostatistics Harvard School of Public Health 1985-86 Associate Professor Statistics Univ. of British Columbia Tenured Statistics Univ. of British Columbia 1980-85 Assistant Professor Statistics & Mathematics Univ. of British Columbia 1979-80 Nato Postdoctoral Fellow Mathematics Imperial College, London 1 Honours 2020 Inaugural -
Mathematisches Forschungsinstitut Oberwolfach Topologie
Mathematisches Forschungsinstitut Oberwolfach Report No. 42/2014 DOI: 10.4171/OWR/2014/42 Topologie Organised by Thomas Schick, G¨ottingen Peter Teichner, Bonn Nathalie Wahl, Copenhagen Michael Weiss, M¨unster 14 September – 20 September 2014 Abstract. The Oberwolfach conference “Topologie” is one of only a few opportunities for researchers from many different areas in algebraic and geo- metric topology to meet and exchange ideas. The program covered new de- velopments in fields such as automorphisms of manifolds, applications of alge- braic topology to differential geometry, quantum field theories, combinatorial methods in low-dimensional topology, abstract and applied homotopy theory and applications of L2-cohomology. We heard about new results describ- ing the cohomology of the automorphism spaces of some smooth manifolds, progress on spaces of positive scalar curvature metrics, a variant of the Segal conjecture without completion, advances in classifying topological quantum field theories, and a new undecidability result in combinatorial group theory, to mention some examples. As a special attraction, the conference featured a series of three talks by Dani Wise on the combinatorics of CAT(0)-cube complexes and applications to 3-manifold topology. Mathematics Subject Classification (2010): 55-xx, 57-xx, 18Axx, 18Bxx. Introduction by the Organisers This conference was the third topology conference in Oberwolfach organized by Thomas Schick, Peter Teichner, Nathalie Wahl and Michael Weiss. About 50 mathematicians participated, working in many different areas of algebraic and geometric topology. 2354 Oberwolfach Report 42/2014 The talks were of three types. There were 14 regular one-hour talks, 3 one-hour talks by keynote speaker Dani Wise and a “gong show” where 12 young speak- ers had the opportunity to present their research in 10 minutes each, including question time. -
New Applied Statistics Specialist Program
Awards: Faculty & Students Program News Congratulations to Alison Gibbs wins Dean’s Outstanding Tenure & Promotion GRADUATE STUDIES REPORT Don Fraser! Teaching Award by Sebastian Jaimungal, Associate Chair for Graduate Studies, Associate Professor, Dept. Statistics, U. Toronto Congratulations to Andrei Badescu who has been First off, I would like to thank Prof. Knight, my our faculty’s research problems, but are acces- Congratulations to Don Fraser For her clear leadership and achievements in manuscript Lessons from Medicine for the training granted tenure and was promoted to the rank of predecessor, for handling the reigns as sible to non-experts. This year we have for his recent appointment by teaching and the widespread enthusiasm for her of Statistical Consultants. She chairs the Statistical Associate Professor on July 1, 2011. Professor Graduate Chair so expertly, for his guidance introduced: Statistical Dependence: Copula the Governor General as an performance as an instructor. Dr. Gibbs is a lead- Education Committee for the SSC and attends Badescu is a Professor in Actuarial Science. He is an and for his assistance in bringing me up to Models and Beyond; Functional Data Analysis Officer of the Order of Canada. This honour was ing innovator of statistics education and several conferences on statistics education on an internationally renowned expert in ruin theory, par- speed—thanks Keith! Second, I would like to and Related Topics; Monte Carlo Estimation; bestowed upon Don for his contributions to the curriculum renewal in our Department and more annual basis. She was Guest editor for the ticularly for his work connecting risk processes with thank the staff: Andrea, Angela, Annette and Advanced Monte Carlo Methods and advancement of statistical sciences in Canada broadly the Faculty of Arts and Science at the Canadian Journal of Statistics, is an Associate stochastic fluid flows. -
By Alex Reinhart Yosihiko Ogata
STATISTICAL SCIENCE Volume 33, Number 3 August 2018 A Review of Self-Exciting Spatio-Temporal Point Processes and Their Applications .................................................................................Alex Reinhart 299 Comment on “A Review of Self-Exciting Spatiotemporal Point Process and Their Applications”byAlexReinhart.............................................Yosihiko Ogata 319 Comment on “A Review of Self-Exciting Spatio-Temporal Point Process and Their Applications”byAlexReinhart..........................................Jiancang Zhuang 323 Comment on “A Review of Self-Exciting Spatio-Temporal Point Processes and Their Applications”byAlexReinhart..................................Frederic Paik Schoenberg 325 Self-Exciting Point Processes: Infections and Implementations .............Sebastian Meyer 327 Rejoinder: A Review of Self-Exciting Spatio-Temporal Point Processes and Their Applications..................................................................Alex Reinhart 330 On the Relationship between the Theory of Cointegration and the Theory of Phase Synchronization..................Rainer Dahlhaus, István Z. Kiss and Jan C. Neddermeyer 334 Confidentiality and Differential Privacy in the Dissemination of Frequency Tables ......................Yosef Rinott, Christine M. O’Keefe, Natalie Shlomo and Chris Skinner 358 Piecewise Deterministic Markov Processes for Continuous-Time Monte Carlo .....................Paul Fearnhead, Joris Bierkens, Murray Pollock and Gareth O. Roberts 386 Fractionally Differenced Gegenbauer Processes -
On Cohomological Algebras in Supersymmetric Quantum Field Theories
On Cohomological Algebras in Supersymmetric Quantum Field Theories by Nafiz Ishtiaque A thesis presented to the University of Waterloo in fulfillment of the thesis requirement for the degree of Doctor of Philosophy in Physics Waterloo, Ontario, Canada, 2019 c Nafiz Ishtiaque 2019 Examining Committee Membership The following served on the Examining Committee for this thesis. The decision of the Examining Committee is by majority vote. External Examiner: Erich Poppitz Professor, Dept. of Physics, University of Toronto Supervisor: Jaume Gomis Faculty, Perimeter Institute for Theoretical Physics Adjunct Professor, Dept. of Physics and Astronomy, University of Waterloo Internal Member: Davide Gaiotto Faculty, Perimeter Institute for Theoretical Physics Adjunct Professor, Dept. of Physics and Astronomy, University of Waterloo Internal Member: Niayesh Afshordi Associate Faculty, Perimeter Institute for Theoretical Physics Associate Professor, Dept. of Physics and Astronomy, University of Waterloo Internal-External Member: Ruxandra Moraru Associate Professor, Dept. of Pure Mathematics, University of Waterloo ii Author's Declaration This thesis consists of material all of which I authored or co-authored: see Statement of Contributions included in the thesis. This is a true copy of the thesis, including any required final revisions, as accepted by my examiners. I understand that my thesis may be made electronically available to the public. iii Statement of Contributions This thesis is based on the following papers: 1. Jaume Gomis and Nafiz Ishtiaque. K¨ahlerpotential and ambiguities in 4d N = 2 SCFTs. JHEP, 04:169, 2015, 1409.5325. 2. Efrat Gerchkovitz, Jaume Gomis, Nafiz Ishtiaque, Avner Karasik, Zohar Komar- godski, and Silviu S. Pufu. Correlation Functions of Coulomb Branch Operators. -
Factorization Algebras in Quantum Field Theory Volume 2 (28 April 2016)
Factorization algebras in quantum field theory Volume 2 (28 April 2016) Kevin Costello and Owen Gwilliam Contents Chapter 1. Overview1 1.1. Classical field theory and factorization algebras1 1.2. Quantum field theory and factorization algebras2 1.3. The quantization theorem3 1.4. The rigid quantization conjecture4 Chapter 2. Structured factorization algebras and quantization7 2.1. Structured factorization algebras7 2.2. Commutative factorization algebras9 2.3. The P0 operad9 2.4. The Beilinson-Drinfeld operad 13 Part 1. Classical field theory 17 Chapter 3. Introduction to classical field theory 19 3.1. The Euler-Lagrange equations 19 3.2. Observables 20 3.3. The symplectic structure 20 3.4. The P0 structure 21 Chapter 4. Elliptic moduli problems 23 4.1. Formal moduli problems and Lie algebras 24 4.2. Examples of elliptic moduli problems related to scalar field theories 28 4.3. Examples of elliptic moduli problems related to gauge theories 30 4.4. Cochains of a local L¥ algebra 34 4.5. D-modules and local L¥ algebras 36 Chapter 5. The classical Batalin-Vilkovisky formalism 45 5.1. The classical BV formalism in finite dimensions 45 5.2. The classical BV formalism in infinite dimensions 47 5.3. The derived critical locus of an action functional 50 5.4. A succinct definition of a classical field theory 55 5.5. Examples of field theories from action functionals 57 5.6. Cotangent field theories 58 Chapter 6. The observables of a classical field theory 63 iii iv CONTENTS 6.1. The factorization algebra of classical observables 63 6.2.