Mar
12
Working seminar
k-core decomposition of a graph Description (k-core decomposition of a graph) Event Topic Nonlinear Algebra and Statistics (NLASTATS)
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Mar
5
The beta model for hypergraphs and its connection to some open discrete problems
Speaker Despina Stasi IIT Applied Mathematics Description We define and study the beta model for hypergraphs, an exponential family of probability distributions for hypergraphs, whose natural...
Feb
26
Implementation of Markov basis Technologies
Speaker Hisayuki Hara Niigata University, Japan http://www.econ.niigata-u.ac.jp/~hara/ Description The methodology of Markov basis initiated by Diaconis and Sturmfels (1998) stimulated active research...
Feb
19
Reading/Discussion: Integer programming, transportation problems, tables, and Markov bases
Description Despina and Dane are leading the discussion of the following paper: All linear and integer programs are slim 3-way transportation programs by De Loera and Onn. See also this survey paper...
Feb
12
Reading/Discussion: Integer programming, transportation problems, tables, and Markov bases.
Description Despina and Dane are leading the discussion of the following paper: All linear and integer programs are slim 3-way transportation programs by De Loera and Onn. See also this survey paper...
Jan
29
Organizational Meeting
Description Main reading topics chosen: 2/12 and 2/19, we will read the papers that explain in detail Theorem 1.2.17 in "Lecture notes in algebraic statistics" book. These papers are about...
Nov
21
Informal/reading meeting
Event Topic Nonlinear Algebra and Statistics (NLASTATS)
Nov
7
Dynamic Markov Bases Through Parameter Hypergraphs
Speaker Despina Stasi Penn State Statistics and IIT Applied Math http://www.personal.psu.edu/dus33/ Description Social networks and other large sparse datasets pose significant challenges for...
Oct
31
Differentially Private Degree Sequences and Synthetic Graphs
Speaker Vishesh Karwa Penn State graduate student http://sites.psu.edu/vishesh/research/ Description In this talk, I will describe a privacy problem of sharing network data while providing rigorous...
Oct
23
Algebraic and Geometric Ideas in Linear Optimization
Speaker Jesus De Loera University of California, Davis https://www.math.ucdavis.edu/~deloera/ Description Linear programming is undeniably a central software tool of applied mathematics and a source...