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Monday, April 2, 2018Agostino Capponi  Columbia UniversitySeminar: Other Related Seminars  April 2  3:305 p.m.  3108 Etcheverry Hall Agostino Capponi, Columbia University Industrial Engineering & Operations Research Agostino Capponi joined Columbia University's IEOR Department in August 2014, where he is also a member of the Institute for Data Science and Engineering. Tuesday, April 3, 2018Solving composite minimization problems arising in statistics and engineering, with applications to phase retrievalSeminar: Neyman Seminar: BerkeleyStanford Joint Colloquium at Berkeley  April 3  45 p.m.  60 Evans Hall John C. Duchi, Stanford University We consider minimization of stochastic functionals that are compositions of a (potentially) nonsmooth convex function h and smooth function c. We develop two stochastic methodsa stochastic proxlinear algorithm and a stochastic (generalized) sub gradient procedureand prove that, under mild technical conditions, each converges to stationary points of the stochastic objective. Additionally,... More > Wednesday, April 4, 2018PoissonDirichlet interval partition evolutions related to the Aldous diffusionSeminar: Probability Seminar  April 4  3:104 p.m.  1011 Evans Hall Matthias Winkel, University of Oxford We construct diffusions on a space of interval partitions of [0,1] that Center for Computational Biology Seminar: Dr. Alexis Battle, Assistant Professor, Biomedical Engineering, Johns Hopkins UniversitySeminar: Other Related Seminars  April 4  4:305:30 p.m.  125 Li Ka Shing Center Center for Computational Biology Title: Modeling the complex impact of genetic variation on gene expression Thursday, April 5, 2018Seminar 217, Risk Management: The Securitization and Solicited Refinancing Channel of Monetary PolicySeminar: Risk Seminar  April 5  12:302 p.m.  1011 Evans Hall Speaker: Rupal Kamdar, UC Berkeley Center for Risk Management Research I document the “securitization and solicited refinancing channel,” a novel transmission mechanism of monetary policy and its heterogenous regional effects. The mechanism predicts that mortgage lenders who sell their originations to Government Sponsored Enterprises or into securitizations no longer hold the loan’s prepayment risk, and when rates drop, these lenders are more likely to signal to... More > Statistical inference of properties of distributions: theory, algorithms, and applicationsSeminar: Other Related Seminars  April 5  45 p.m.  Soda Hall, HP Auditorium, 306 Soda Hall Jiantao Jiao, Ph.D. Candidate, Stanford University Electrical Engineering and Computer Sciences (EECS) Modern data science applications frequently involve pipelines of exploratory analysis requiring accurate inference of a property of the distribution governing the data. This talk will focus on recent progress in the performance, structure, and deployment of nearminimaxoptimal estimators for a large variety of properties in highdimensional and nonparametric settings. Wednesday, April 11, 2018A unifying framework for constructing MCMC algorithms from irreversible diffusion processesSeminar: Probability Seminar  April 11  3:104 p.m.  1011 Evans Hall Yian Ma, U. C. Berkeley In this talk, I will first present a general recipe for constructing MCMC algorithms from diffusion processes with the desired stationary distributions. The recipe translates the task of finding valid continuous Markov processes into one of choosing two matrices. Importantly, any diffusion process with the target stationary distribution (given an integrability condition) can be represented in our... More > Using visualisation to understand R theorySeminar  April 11  45 p.m.  10 Evans Hall  Note change in location Hadley Wickham, RStudio In this talk, I will introduce the lobstr package which provides tools to visualise R's data structures on the command line. I'll show three R functions ast(), cst(), and ref() and use them to discuss three important components of R's theory: Thursday, April 12, 2018Teaching and Research Resource FairSpecial Event: News and Events  April 12  11 a.m.1 p.m.  Dwinelle Hall, Room 117, Level D Connect with dozens of campus service providers to get new ideas, find support, and learn about resources and services. Enjoy focused conversations and technology demos while meeting other instructors and researchers. Faculty, Students  Graduate Faculty, Staff, Students  Graduate ID required. RSVP by April 10 online. Seminar 217, Risk Management: The Longlasting Effects of Propaganda on Financial RiskTakingSeminar: Risk Seminar  April 12  12:302 p.m.  1011 Evans Hall Speaker: Ulrike Malmendier, UC Berkeley Center for Risk Management Research We argue that emotional coloring of experiences via political propaganda has longterm effects on risk taking. We show that living in an anticapitalist system reduces individuals' willingness to invest in the stock market even decades later. Friday, April 13, 2018Dissertation talk: Detection limits and fluctuation results in some spiked random matrix modelsSeminar: Other Related Seminars  April 13  2:303:30 p.m.  521 Cory Hall Ahmed El Alaoui, EECS Electrical Engineering and Computer Sciences (EECS) In this talk, we will investigate the fundamental limits of detecting the presence of a structured lowrank signal buried inside a large noise matrix. This setting serves among other things as a simple model for principal component analysis: Given a set of data points in Euclidean space, find out whether there exists a distinguished direction (a "spike") along which these data points align. Wednesday, April 18, 2018Rigid structures in the universal enveloping traffic spaceSeminar: Probability Seminar  April 18  3:104 p.m.  1011 Evans Hall Benson Au, U.C. Berkeley For a tracial $*$probability space $(\mathcal{A}, \varphi)$, C\'{e}bron, Dahlqvist, and Male constructed an enveloping traffic space $(\mathcal{G}(\mathcal{A}), \tau_\varphi)$ that extends the trace $\varphi$. The CDM construction provides a universal object that allows one to appeal to the traffic probability framework in generic situations, prioritizing an understanding of its structure. We... More > Global Testing Against Sparse Alternatives under Ising ModelsSeminar: Neyman Seminar  April 18  45 p.m.  1011 Evans Hall Rajarshi Mukherjee, UC Berkeley We study the effect of dependence on detecting sparse signals. In particular, we focus on global testing against sparse alternatives for the magnetizations of an Ising model and establish how the interplay between the strength and sparsity of a signal determines its detectability under various notions of dependence (i.e. the coupling constant of the Ising model). The impact of dependence can be... More > Center for Computational Biology Seminar: Dr. Long Cai, Research Professor, Department of Biology and Biological Engineering, CaltechSeminar: Other Related Seminars  April 18  4:305:30 p.m.  125 Li Ka Shing Center Center for Computational Biology Spatial genomics and single cell lineage dynamics by seqFISH and MEMOIR Thursday, April 19, 2018Seminar 217, Risk Management: Could Probability of Informed Trading Predict Market Volatility?Seminar: Risk Seminar  April 19  12:302 p.m.  1011 Evans Hall Speaker: John Wu, LBL Center for Risk Management Research Significant market events such as Flash Crash of 2010 undermine the trust of the capital market system. An ability to forecast such events would give market participants and regulators time to react to such events and mitigate their impact. For this reason, there have been a number of attempts to develop early warning indicators. In this work, we explore one such indicator named Probability of... More > Tuesday, April 24, 2018DataEDGE ConferenceConference/Symposium: Other Related Seminars  April 24  9 a.m.6 p.m.  Sutardja Dai Hall, Banatao Auditorium Are you and your organization taking advantage of the opportunities created by today’s flood of new data? Register online. Wednesday, April 25, 2018The weak Pinsker propertySeminar: Probability Seminar  April 25  3:104 p.m.  1011 Evans Hall Tim Austin, UCLA This talk is about the structure theory of measurepreserving systems: transformations of a finite measure space that preserve the measure. Many important examples arise from stationary processes in probability, and simplest among these are the i.i.d. processes. In ergodic theory, i.i.d. processes are called Bernoulli shifts. Some of the main results of ergodic theory concern an invariant of... More > Thursday, April 26, 2018Seminar 217, Risk Management: Statistical ArbitrageSeminar  April 26  12:302 p.m.  1011 Evans Hall Speaker: George Papanicolaou, Stanford Center for Risk Management Research Statistical arbitrage is a collection of trading algorithms that are widely used today but can have very uneven performance, depending on their detailed implementation. I will introduce these methods and explain how the data used as trading signals are prepared so that they depend weakly on market dynamics but have adequate statistical regularity. The trading algorithm itself will be presented... More > Ribosomes, traffic jams, and phase transitionsSeminar: BerkeleyDavis Joint Colloquium at Davis  April 26  45 p.m.  Mathematical Sciences Building, UC Davis, 1147 (Colloquium Room) 399 Crocker Lane, Davis, CA 95616 Yun Song, UC Berkeley Since its introduction, the totally asymmetric simple exclusion process (TASEP) has been widely used to model transport phenomena in nonequilibrium interacting particle systems. Many mathematicians and physicists have studied this stochastic process under various conditions motivated by a broad range of applications. In biology, for example, the TASEP has been used to describe the dynamics of... More > Monday, April 30, 2018Avraham Shtub TechnionSeminar: Other Related Seminars  April 30  3:305 p.m.  3108 Etcheverry Hall Avraham Shtub, Technion Industrial Engineering & Operations Research Professor Avraham Shtub holds the Stephen and Sharon Seiden Chair in Project Management. He was a faculty member of the department of Industrial Engineering at Tel Aviv University from 1984 to 1998 where he also served as a chairman of the department (19931996)... More > 

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