Organizing Committee
 Anna Beliakova
Universität Zürich  Ben Elias
University of Oregon  Juan GonzálezMeneses
Universidad de Sevilla  Anthony Licata
Australian National University
Abstract
Braid groups and their generalizations play a central role in a number of places in 21stcentury mathematics. In modern representation theory, braid groups have come to play an important organizing role, somewhat analogous to the role played by Weyl groups in classical representation theory. Recent advances have established strong connections between homological algebra (tstructures and stability conditions), geometric representation theory (Hilbert schemes, the Hecke category, and link homologies), and algebraic combinatorics (shuffle algebras, symmetric functions, and also Garside theory). Braid groups appear prominently in many of these connections. The goal of this workshop will be to bring experts in these different areas together to both communicate recent advances and also to formulate important questions for future work.
Confirmed Speakers & Participants
Talks will be presented virtually or inperson as indicated in the schedule below.
 Speaker
 Poster Presenter
 Attendee
 Virtual Attendee

Leonard Afeke
University of Toronto

Antonio Alfieri
Université du Québec à Montréal (CRM)

John Baldwin
Boston College

Asilata Bapat
The Australian National University

Karina Batistelli
Universidad de Chile

Anna Beliakova
Universität Zürich

Rachael Boyd
University of Cambridge

Carmen Caprau
California State University, Fresno

Jacob Caudell
Boston College

Melody Chan
Brown University

Ruth Charney
Brandeis University

Rima Chatterjee
University of Cologne

Lei Chen
University of Maryland, College Park

Marc Culler
University of Illinois at Chicago

María Cumplido Cabello
University of Seville

Anand Deopurkar
Australian National University

Soumya Dey
Chennai Mathematical Institute

Riya Dogra
(Recent Master's Graduate)

Ben Elias
University of Oregon

Peter Feller
ETH Zurich

Nir Gadish
The University of Michigan

Jacob Garcia
University of California, Riverside

Thomas Gobet
Université de Tours

Nicolle Gonzalez
UCLA

Juan GonzálezMeneses
Universidad de Sevilla

Eugene Gorsky
UC Davis

Iva Halacheva
Northeastern University

Matthew Hedden
Michigan State University

Edmund Heng
The Australian National University

Matt Hogancamp
Northeastern University

Mee Seong Im
United States Naval Academy

Kasia Jankiewicz
University of California Santa Cruz

Jonathan Johnson
Oklahoma State University

Marc Kegel
HumboldtUniversität zu Berlin

Willi Kepplinger
University of Vienna

Nguyen Khanh
Institut Camille Jordan

Mikhail Khovanov
Columbia University

Oscar Kivinen
EPFL

Ben Knudsen
Northeastern University

Sudipta Kolay
ICERM

Siddhi Krishna
Columbia University

Jonathan Kujawa
University of Oklahoma

Miriam Kuzbary
Georgia Institute of Technology

Thomas Lam
University of Michigan

Aaron Lauda
University of Southern California

Cailan Li
Columbia University

Anatoly Libgober
University of Illinois at Chicago

Anthony Licata
Australian National University

Joan Licata
Australian National University

Elizabeth Manosalva
Universidad de Talca

Alvaro Martinez
Columbia University

Jon McCammond
UC Santa Barbara

Calder MortonFerguson
MIT

Kie Seng Nge
Australia National University

Meshach Nldovu
Botswana International University of Science and Technology

Alexei Oblomkov
UMASS Amherst

Roberto Pagaria
Alma Mater Studiorum Università di Bologna

Luis Paris
University of Burgundy

Ina Petkova
Dartmouth College

Jozef Przytycki
George Washington University

You Qi
University of Virginia

Hoel Queffelec
CNRS

HITESH RAUNDAL
Indian Institute of Science Education and Research, Mohali, India

Pablo Sanchez Ocal
University of California, Los Angeles

Nancy Scherich
University of Toronto

Alex Semendinger
Brandeis University

Anastassiya Semenova
ICERM, Brown University

Marithania Silvero
Universidad de Sevilla

Jose Simental Rodriguez
MaxPlanck Institute for Mathematics

Rahul Singh
Virginia Polytechnic Institute and State University

Arthur Soulié
University of Glasgow

Shraddha Srivastava
Uppsala University

Eric Stenhede
University of Vienna

Jill Stifano
Brandeis University

Haoyu Sun
University of Texas, Austin

Joshua Sussan
CUNY

Tom Sutherland
University of Vienna

Hannah Turner
Georgia Institute of Technology

Monica Vazirani
UC Davis

Yvon Verberne
Georgia Institute of Technology

Arthur Wang
University of Massachusetts, Amherst

Jennifer Wilson
University of Michigan

Biji Wong
Max Planck Institute for Mathematics

Haihan Wu
UC Davis

Oded Yacobi
University of Sydney

Jiajun Yan
University of Virginia

Jiaqi Yang
ICERM
Workshop Schedule
Monday, February 14, 2022

8:50  9:00 am ESTWelcome11th Floor Lecture Hall
 Brendan Hassett, ICERM/Brown University

9:00  9:45 am ESTHigher structure and symmetry in KhovanovRozansky homology11th Floor Lecture Hall
 Speaker
 Matt Hogancamp, Northeastern University
 Session Chair
 Anthony Licata, Australian National University
Abstract
In this talk I will show how one constructs the action of a certain commutative dg algebra on the KhovanovRozansky complex of a link. The central application is a proof of the "mirror symmetry" property of triply graded KhovanovRozansky homology of a knot, originally conjectured in 2005 by DunfieldGukovRasmussen. This was proven first by OblomovRozansky using their geometric link homology, but I will discuss an independent proof developed in joint work with Gorsky and Mellit.

10:00  10:30 am ESTCoffee Break11th Floor Collaborative Space

10:30  11:15 am ESTA skein theoretic CarlssonMellit algebra11th Floor Lecture Hall
 Speaker
 Nicolle Gonzalez, UCLA
 Session Chair
 Anthony Licata, Australian National University
Abstract
The shuffle theorem gives a combinatorial formula for the Frobenius character of the space of diagonal harmonics in terms of certain symmetric functions indexed by Dyck paths. In their proof, Carlsson and Mellit introduce a new interesting algebra denoted $A_{q,t}$. This algebra arises as an extension of the affine Hecke algebra by certain raising and lowering operators and acts on the space of symmetric functions via certain complicated plethystic operators. Afterwards Carlsson, Mellit, and Gorsky showed this algebra and its representation could be realized using parabolic flag Hilbert schemes and in addition to containing the generators of the elliptic Hall algebra. In this talk I will discuss joint work with Matt Hogancamp where we construct skein theoretic formulations of the representations of $A_{q,t}$ that arise in the proofs of the shuffle theorems and how this framework enables difficult computations to become simple diagrammatic manipulations as well as sheds light on potential applications to combinatorics and link homology.

11:30 am  12:15 pm ESTVery positive braids are parity braids?11th Floor Lecture Hall
 Speaker
 Alexei Oblomkov, UMASS Amherst
 Session Chair
 Anthony Licata, Australian National University
Abstract
Based on joint work with Lev Rozansky. A braid is a parity braid if KhovanovRozansky homology of the closure of the braid has only odd or only even homological grading. It is expected that algebraic braids are parity, but probably there are more. It also seems to be natural to conjecture that after twisting by a very large power of the full twist any braid becomes parity. In our work we computed homology of the closure of composition of a quasiCoxeter braid and a JucysMurphy braids. For these braids the answer to question in the title is yes.

12:30  2:30 pm ESTLunch/Free Time

2:30  3:15 pm ESTA categorification of colored Jones polynomial at prime roots of unity11th Floor Lecture Hall
 Speaker
 You Qi, University of Virginia
 Session Chair
 María Cumplido Cabello, University of Seville
Abstract
We propose a categorification of the colored Jones polynomial evaluated at a 2pth root of unity by equipping a pdifferential discovered by Cautis on the triply graded KhovanovRozansky homology.

3:30  4:00 pm ESTCoffee Break11th Floor Collaborative Space

4:00  4:45 pm ESTBraids: Classical, Virtual and Welded, Oh my!11th Floor Lecture Hall
 Speaker
 Nancy Scherich, University of Toronto
 Session Chair
 María Cumplido Cabello, University of Seville
Abstract
We will discuss the difference between the classical, virtual, and welded braid groups from an algebraic and topological perspective. We will discuss techniques to extend representations of classical braid groups to the virtual and welded settings.

5:00  6:30 pm ESTReception11th Floor Collaborative Space
Tuesday, February 15, 2022

9:00  9:45 am ESTVirtual Artin groups11th Floor Lecture Hall
 Virtual Speaker
 Luis Paris, University of Burgundy
 Session Chair
 You Qi, University of Virginia
Abstract
This talk concerns a joint work with Paolo Bellingeri and AnneLaure Thiel. Starting from the observation that the standard presentation of a virtual braid group mixes the presentations of the corresponding braid group and the corresponding symmetric group together with the action of the symmetric group on its root system, we define a virtual Artin group ${\rm VA}[\Gamma]$ with a presentation that mixes the standard presentations of the Artin group $A[\Gamma]$ and of the Coxeter group $W[\Gamma]$ together with the action of $W[\Gamma]$ on its root system. By definition we have two epimorphisms $\pi_K:{\rm VA}[\Gamma]\to W[\Gamma]$ and $\pi_P:{\rm VA}[\Gamma]\to W[\Gamma]$ whose kernels are denoted by ${\rm KVA}[\Gamma]$ and ${\rm PVA}[\Gamma]$, respectively. In this talk we will focus on ${\rm KVA}[\Gamma]$. We will show that this group is an Artin group whose standard generating set is in onetoone correspondence with the root system of $W[\Gamma]$. Afterwards, we use this presentation to show that the center of ${\rm VA}[\Gamma]$ is always trivial, and to show that ${\rm VA}[\Gamma]$ has a solvable word problem and finite virtual cohomological dimension when $\Gamma$ is of spherical type or of affine type.

10:00  10:30 am ESTCoffee Break11th Floor Collaborative Space

10:30  11:15 am EST2braid groups and positivity phenomenons in Hecke and TemperleyLieb algebras11th Floor Lecture Hall
 Speaker
 Thomas Gobet, Université de Tours
 Session Chair
 You Qi, University of Virginia
Abstract
There is a wellknown homomorphism from Artin's braid group to (the group of invertible elements of the) IwahoriHecke algebra of the symmetric group, or more generally from any ArtinTits group to the corresponding Hecke algebra. Consider the positive lifts of the elements of the Coxeter group in the ArtinTits group. Then their images in the Hecke algebra yield the socalled standard basis of the Hecke algebra. Elements of the standard basis have a positive expansion in one of Kazhdan and Lusztig's canonical bases, i.e., have coefficients which are Laurent polynomials with nonnegative coefficients.
In the case where the Coxeter group is finite, the positive lifts of the elements of the Coxeter group in the ArtinTits group are the socalled simple elements of the classical Garside structure. An alternative Garside structure, called dual Garside structure, was introduced for spherical type ArtinTits groups. One can wonder if the images of these elements in the Hecke algebra still have a positive KL expansion or not. This is especially interesting in type A, as simple dual braids yield a basis of the TemperleyLieb quotient of the Hecke algebra.
We will explain how positivity of images of simple dual braids can be obtained in spherical type using a generalization of Kazhdan and Lusztig's inverse positivity, which predicts that certain elements of ArtinTits groups, which we call ""Mikado braids"", have a positive KazhdanLustig expansion, together with the fact that simple dual braids are Mikado braids. The positivity of the KL expansion of Mikado braids, shown for finite Weyl groups by Dyer and Lehrer, can be generalized to arbitrary Coxeter systems by adapting a result of Elias and Williamson on the perversity of minimal Rouquier complexes of positive simple braids to a ""twisted"" setting as introduced by Dyer, and asks the question of determining which braids have a minimal braid complex which is perverse. 
11:30 am  12:15 pm ESTHow to know if a parabolic subgroup of an Artin group merges conjugacy classes11th Floor Lecture Hall
 Speaker
 María Cumplido Cabello, University of Seville
 Session Chair
 You Qi, University of Virginia
Abstract
Artin (or ArtinTits) groups are generalizations of braid groups that are defined using a finite set of generators $S$ and relations $abab\cdots=baba\cdots$, where both words of the equality have the same length. Although this definition is quite simple, there are very few results known for Artin groups in general. Classic problems as the word problem or the conjugacy problem are still open. In this talk, we study a problem concerning a family of subgroups of Artin groups: parabolic subgroups. These subgroups have proven to be useful when studying Artin groups for example, they are used to build interesting simplicial complexes, but again, we do not know much about them in general. Our problem will be the following: Given two conjugate elements of a parabolic subgroup $P$ of an Artin group $A$, are they conjugate via an element of $P$? This is called the conjugacy stability problem. In 2014, GonzálezMeneses proved that this is always true for braids, that is, geometric embedding of braids do not merge conjugacy classes. In an article with Calvez and Cisneros de la Cruz, we gave a classification for spherical Artin groups an proved that the answer to the question is not always affirmative. In this talk, we will explain how to give an algorithm to solve this problem for every Artin group satisfying three properties that are conjectured to be always true.

12:30  2:30 pm ESTLunch/Free Time

2:30  3:15 pm ESTFrom Artin monoids to Artin groups11th Floor Lecture Hall
 Speaker
 Ruth Charney, Brandeis University
 Session Chair
 Matt Hogancamp, Northeastern University
Abstract
Braid groups belong to a broad class of groups known as Artin groups, which are defined by presentations of a particular form. These groups fall into two classes, finitetype and infintetype Artin groups. The former come equipped with a powerful combinatorial structure, known as a Garside structure, while the latter are much less understood and present many challenges. However, if one restricts to the Artin monoid, a submonoid of the Artin group, then some aspects of Garside theory still apply in the infinitetype case. I will talk about joint work with Rachael Boyd and Rose MorrisWright on geometric relations between Artin monoids and Artin groups.

3:30  4:00 pm ESTCoffee Break11th Floor Collaborative Space

4:00  4:45 pm ESTDual Braids and the Braid Arrangement11th Floor Lecture Hall
 Virtual Speaker
 Jon McCammond, UC Santa Barbara
 Session Chair
 Matt Hogancamp, Northeastern University
Abstract
The braid groups have two well known Garside presentations. The elegant minimal standard presentation is closely related to the Salvetti complex, a cell complex derived from the complement of the complexification of the real braid arrangement. The dual presentation, introduced by Birman, Ko and Lee, leads to a second Garside structure and a second classifying space, but it has been less clear how the dual braid complex is related to the (quotient of the) complexified hyperplane complement, other than abstractly knowing that they are homotopy equivalent. In this talk, I will discuss recent progress on this issue. Following a suggestion by Daan Krammer, Michael Dougherty and I have been able to embed the dual braid complex into the complement of the complex braid arrangement. This leads in turn to a whole host of interesting complexes, combinatorics, and connections to other parts of the field. This is joint work with Michael Dougherty.
Wednesday, February 16, 2022

9:30  10:15 am ESTDerived super equivalences from odd categorified quantum groups11th Floor Lecture Hall
 Speaker
 Aaron Lauda, University of Southern California
 Session Chair
 Hoel Queffelec, CNRS
Abstract
Since the pioneering work of Chuang and Rouquier, the construction of highly nontrivial derived equivalences has been one of the most powerful tools resulting from higher representation theory. CautisKamnitzerLicata showed these derived equivalences arising from categorified quantum groups gave rise to categorical actions of braid groups of the corresponding Lie type with ChuangRouquier's equivalences corresponding to the elementary braid generators. In 2011, motivated by the discovery of odd Khovanov homology, EllisKhovanovLauda proposed a new `odd' categorification of sl2. At the same time, this `odd sl2' was independently discovered by KangKashiwaraTsuchioka who were investigating super categorifications of KacMoody algebras. In this talk we will explain joint work with Mark Ebert and Laurent Vera giving new super analogs of the derived equivalences studied by Chuang and Rouquier coming from the odd categorification of sl2. Just as Chuang and Rouquier used their equivalences to achieve new results on the modular representation theory of the symmetric group, we will discuss how our new super equivalences can be applied to the spin symmetric group.

10:00  10:30 am ESTCoffee Break11th Floor Collaborative Space

11:00  11:45 am ESTThe combinatorics and geometry of HarderNarasimhan filtrations11th Floor Lecture Hall
 Speaker
 Anand Deopurkar, Australian National University
 Session Chair
 Hoel Queffelec, CNRS
Abstract
How does an object of a triangulated category evolve under repeated applications of an autoequivalence? I will describe how this amorphous question can be made precise using a Bridgeland stability condition. For 2CY categories associated to A_n quivers, I will describe how this investigation turns out to be a categorified version of wellstudied notions in combinatorial geometry.

12:00  12:10 pm ESTGroup Photo (Immediately After Talk)11th Floor Lecture Hall

12:10  2:00 pm ESTLunch/Free Time

2:00  3:00 pm ESTLightning Talks11th Floor Lecture Hall
 Speakers
 Edmund Heng, The Australian National University
 Marc Kegel, HumboldtUniversität zu Berlin
 Calder MortonFerguson, MIT
 Marithania Silvero Casanova, Universidad de Sevilla
 Session Chair
 Ben Elias, University of Oregon
Abstract
Categorifying Burau Representations and Fusion Categories
Edmund Heng, The Australian National University
In this talk, we will look at a categorification of the Burau representations for the nonsimplylaced type braid groups, generalising a construction given by KhovanovHuefarno and RouquierZimmermann. This will involve building certain algebra objects in the fusion categories associated to the quantum group sl2.
Census Lspace knots are braid positive, except for one that is not
Marc Kegel, HumboldtUniversität zu Berlin
I will explain and prove the statement in the title. This is based on joint work with Ken Baker.
KazhdanLaumon Categories and the Symplectic Fourier Transform
Calder MortonFerguson, MIT
In 1988, Kazhdan and Laumon defined a “glued category” of perverse sheaves on the basic affine space. The key ingredient in their construction was the symplectic Fourier transform, which gives an action of the braid group on the category of perverse sheaves. They proposed a new construction of representations of Chevalley groups using this category, but this proposed construction depended on a conjecture which was later shown to be false. In this talk, we will discuss the action of the symplectic Fourier transform as a representation of the braid group. We will then discuss progress toward reworking KazhdanLaumon’s construction in the context of braids.
A hooking conjecture on circle graphs motivated by Khovanov homology
Marithania Silvero Casanova, Universidad de Sevilla
We present a conjecture stating that the independence complex of any circle graph is homotopy equivalent to a wedge of spheres. This conjecture is motivated by the fact that extreme Khovanov homology of a link diagram $D$ coincides with the cohomology of the independence complex associated to its Lando graph (Lando graphs are bipartite circle graphs). We also give some advances on the proof of this conjecture; in particular, we prove it for permutation graphs, nonnested graphs, and graphs associated to closed braids with less than 5 strands. 
3:00  3:30 pm ESTCoffee Break11th Floor Collaborative Space

3:30  4:15 pm ESTBraid groups and permutations of the KazhdanLusztig basis11th Floor Lecture Hall
 Virtual Speaker
 Oded Yacobi, University of Sydney
 Session Chair
 Mee Seong Im, United States Naval Academy
Abstract
Let \lambda be a partition of n. We consider the KazhdanLusztig basis of the corresponding Specht module, which is indexed by standard Young tableau of shape \lambda. One of the amazing features of this basis is that it can be used to relate representation theoretic properties of Specht modules to combinatorial properties of tableau. For example, in the 90s BeresteinZelevinsky and Stembridge showed that the long element of the symmetric group acts on the KazhdanLusztig basis by the Schutzenberger involution on tableau. Similarly, in 2010 Rhoades showed that the long cycle (1,2,...,n) acts by the jeu de taquin promotion operator when \lambda is rectangular. In this talk we will explain how to use braid groups acting on triangulated categories to generalize Rhoades' result in three directions: we lift the condition on the shape of the partition, we greatly enlarge the class of permutations for which the result holds, and we prove analogs in other Lie types. This is based on joint work with Martin Gossow.
Thursday, February 17, 2022

9:00  9:45 am ESTNonsemisimple Hermitian TQFTs11th Floor Lecture Hall
 Speaker
 Joshua Sussan, CUNY
 Session Chair
 Mikhail Khovanov, Columbia University
Abstract
Topological quantum field theories coming from semisimple categories build upon interesting structures in representation theory and have important applications in low dimensional topology and physics. The construction of nonsemisimple TQFTs is more recent and they shed new light on questions that seem to be inaccessible using their semisimple relatives. In order to have potential applications to physics, these nonsemisimple categories and TQFTs should possess Hermitian structures. We will define these structures and give some applications.

10:00  10:30 am ESTCoffee Break11th Floor Collaborative Space

10:30  11:15 am ESTBraid varieties and positroid varieties11th Floor Lecture Hall
 Virtual Speaker
 Jose Simental Rodriguez, MaxPlanck Institute for Mathematics
 Session Chair
 Mikhail Khovanov, Columbia University
Abstract
Associated to a positive braid, we define an affine algebraic variety via an explicit set of polynomial equations. I will give properties of these varieties, including their dimension, smoothness properties and a realization as a moduli space of chains of flags. I will also explain how some classical varieties in Lie theory, such as positroid and more generally Richardson varieties, appear in this way, as well as a connection to the computation of the KhovanovRozansky homology of the link obtained by closing the braid. This is joint work with Roger Casals, Eugene Gorsky and Mikhail Gorsky.

11:30 am  12:15 pm ESTBraid varieties11th Floor Lecture Hall
 Speaker
 Eugene Gorsky, UC Davis
 Session Chair
 Mikhail Khovanov, Columbia University
Abstract
In the talk I will define braid varieties, a class of affine algebraic varieties associated to positive braids. I will discuss their relation to Richardson and positroid varieties, HOMFLY polynomial and HOMFLY homology, and Legendrian link invariants. This is a joint work with Roger Casals, Mikhail Gorsky and Jose Simental Rodriguez.

12:30  2:30 pm ESTLunch/Free Time

2:30  3:15 pm ESTBraid groups and representation stability11th Floor Lecture Hall
 Virtual Speaker
 Jennifer Wilson, University of Michigan
 Session Chair
 Thomas Gobet, Université de Tours
Abstract
In 1970, Arnold proved that the homology groups of the braid groups on n strands stabilizes as n tends to infinity, a phenomenon called "homological stability". The pure braid groups, in contrast, are not homologically stable. In this (partly expository) talk I will describe a sense in which (co)homology groups of the pure braid groups do stabilize when we take into account the natural symmetric group actions. We will use tools from "representation stability" to shed light on the structure of the (co)homology of the pure braid groups, and many of their generalizations. This talk will survey work of Church, Ellenberg, and Farb, and joint work with Miller.

3:30  4:00 pm ESTCoffee Break
Friday, February 18, 2022

9:00  9:45 am ESTKhovanovSeidel braid representation and geometric group theory11th Floor Lecture Hall
 Speaker
 Hoel Queffelec, CNRS
 Session Chair
 Juan GonzálezMeneses, Universidad de Sevilla
Abstract
Khovanov and Seidel defined an action of the braid group by autoequivalences of a certain category of projective modules over the socalled zigzag algebra. Taking the Grothendieck group, one recovers the famous Burau representation, but unlike the latter, KhovanovSeidel representation is faithful. In work with Licata, I showed how to use KhovanovSeidel representation to extract metric data on braids. Building upon this idea, I'll try to convince the audience that such categorical tools should play in the larger context of geometric group theory.

10:00  10:30 am ESTCoffee Break11th Floor Collaborative Space

10:30  11:15 am ESTCategorical $q$deformed rational numbers and compactifications of stability space11th Floor Lecture Hall
 Speaker
 Asilata Bapat, The Australian National University
 Session Chair
 Juan GonzálezMeneses, Universidad de Sevilla
Abstract
We will discuss new categorical interpretations of two distinct $q$deformations of the rational numbers. The first one was introduced in a different context by MorierGenoud and Ovsienko, and enjoys fascinating combinatorial, topological, and algebraic properties. The second one is a natural partner to the first, and is new. We obtain these deformations via boundary points of a compactification of the space of Bridgeland stability conditions on the 2CalabiYau category of the $A_{2}$ quiver. The talk is based on joint work with Louis Becker, Anand Deopurkar, and Anthony Licata.

11:30 am  12:15 pm ESTFrom configurations on graphs to cohomology of M_{2,n}11th Floor Lecture Hall
 Speaker
 Nir Gadish, The University of Michigan
 Session Chair
 Juan GonzálezMeneses, Universidad de Sevilla
Abstract
The configuration space of particles on a graph is a classifying space for the graph's braid group and thus computes the group cohomology. If instead one considers compactly supported cohomology the resulting groups depend only on the genus of the graph, or "loop order", and admit a particularly interesting action by Out(F_g). In this talk I will explain how tropical geometry relates these latter representations to the cohomology of the moduli spaces M_{g,n} and discuss computational approaches.

3:00  3:30 pm ESTCoffee Break11th Floor Collaborative Space
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