All meetings are held Tuesdays 2:00 to 3:00pm in CICSR room 104.
| Date | Time | Presenter | Paper / Topic / Title |
|---|---|---|---|
| Oct 14 | 2:00-3:00pm | Steph Durocher | Recent Results in Art Galleries
Tom Shermer Proc. IEEE, 80 (9) 1384-1399, September 1992. |
| Oct 7 | 2:00-3:00pm | Chris Gray | NP-hardness Results for Planar SAT Problems |
| May 6 | 3:30-4:30pm | Ellen Gethner |
Rotation Systems
from "Topological Graph Theory" by J. Gross and T. Tucker |
| Apr 18 | 3:30-4:30pm | Ellen Gethner |
On representations of some thickness-two graphs
Hutchinson, Shermer, and Vince Computational Geometry Theory and Applications, 13 (1999), 161-171. |
| Apr 10 | 4:00-5:00pm | Will Evans |
Embedding Planar Graphs on the Grid
Walter Schnyder Symposium on Discrete Algorithms pp. 138-148, 1990. |
| Mar 20 | 4:00-5:00pm | Stephane Durocher |
Channel Capacity
from "Elements of Information Theory" by T. Cover and J. Thomas |
| Mar 6 | 4:00-5:00pm | Christine Heitsch |
Kolmogorov Complexity - Part II
from "Elements of Information Theory" by T. Cover and J. Thomas |
| Feb 27 | 4:00-5:00pm | Alex Brodsky |
Kolmogorov Complexity - Part I
from "Elements of Information Theory" by T. Cover and J. Thomas |
| Feb 13 | 4:00-5:00pm | Will Evans | Information Theory and Noisy Circuit Complexity |
| Feb 6 | 4:00-5:00pm | Will Evans |
Information Theory Introduction
from "Elements of Information Theory" by T. Cover and J. Thomas |
| Nov 28 | 3:30-4:30pm | Ellen Gethner |
Coloring Ordinary Maps, Maps of Empires, and Maps of the Moon
Joan P. Hutchinson Mathematics Magazine, 66(4) 211-226, October 1993. |
| Nov 21 | 3:30-4:30pm | Hamish Carr | The Four Colour Problem |
| Nov 14 | 3:30-4:30pm | David Kirkpatrick | Randomized Algorithms for Trapezoidal Decomposition |
| Nov 7 | 3:30-4:30pm | David Kirkpatrick |
Optimal Algorithms for Probabilistic Solitude Detection
on Anonymous Rings
L. Higham, D. Kirkpatrick, K. Abrahamson, and A. Adler J. Algorithms, 23 (1997), 291-328. |
| Oct 31 | 3:30-4:30pm | Stephane Durocher | Randomized Byzantine Agreement |
| Oct 24 | 3:30-4:30pm | Will Evans | Permutation Routing on the Hypercube |
| Oct 17 | 3:30-4:30pm | Nando de Freitas | Lower Bounds in Large Deviation Theory |
| Oct 10 | 3:30-4:30pm | Nando de Freitas |
Large Deviation Theory
Concentration of Measure for Randomized Algorithms: Techniques and Analysis Devdatt Dubhashi and Sandeep Sen |
| Oct 3 | 3:30-4:30pm | Joel Friedman |
Expansion, Conductance, Eigenvalues, and Rapid Mixing
A Polynomial-Time Approximation Algorithm for the Permanent of a Matrix with Non-Negative Entries Mark Jerrum, Alistair Sinclair, Eric Vigoda ECCC Report TR00-079 contains a recent result on approximating the number of perfect matchings and is more verbose than the STOC paper . Approximating the Permanent Mark Jerrum and Alistair Sinclair SIAM Journal on Computing 18(6): 1149-1178(1989) provides more background. |
| Sept 26 | 3:30-4:30pm | Will Evans | More Markov Chain Monte Carlo Methods |
| Sept 19 | 3:30-4:30pm | Will Evans | Orientation & Markov Chain Monte Carlo Methods |
| Aug 30 | 1-2pm | Nick Pippenger |
STOC 2001 Report Part II
Learning DNF in Time 2~O(n1/3) , Page 258 Sharp Threshold and Scaling Window for the Integer Partitioning Problem , Page 330. Almost Optimal Permutation Routing on Hypercubes , Page 530. A Polynomial-Time Approximation Algorithm for the Permanent of a Matrix with Non-Negative Entries , Page 712. |
| Aug 23 | 1-2pm | ![]() |
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| Aug 16 | 1-2pm | Alex Brodsky |
STOC 2001 Report Part I
Quantum mechanical algorithms for the nonabelian hidden subgroup problem , Page 68 Quantum computers that can be simulated classically in polynomial time , Page 114. Smoothed analysis of algorithms: why the simplex algorithm usually takes polynomial time , Page 296. Computing crossing numbers in quadratic time , Page 231. |
| Aug 9 | 1-2pm | Bettina Speckmann | Tight Degree Bounds for Pseudo-triangulations of Points |
| Aug 2 | 1-2pm | ![]() |
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| July 26 | 1-2pm | Jack Snoeyink |
Protein Chain Folding
NP-hardness of the HP model Algorithms used with the HP model Chain growing with more advanced models Ideas appearing in the last CASP competition winner |
| July 19 | 1-2pm | Dieter van Melkebeek | Time-Space Tradeoffs for Satisfiability |
| July 12 | 1-2pm | Sergei Bespamyatnikh |
Shortest Paths in the Plane with Polygonal Obstacles
James A. Storer and John H. Reif. Journal ACM, 41(5):982-1012, 1994. |
| July 5 | 1-2pm | Bettina Speckmann David Kirkpatrick |
Symposium on Computational Geometry Trip Report |
| June 28 | 1-2pm | ![]() |
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| June 21 | 1-2pm | Lila Kari | Formal Language Theory and DNA Computing |
| June 14 | 1-2pm | Stephane Durocher |
Paths, Trees, and Flowers
Jack Edmonds. Canadian Journal of Mathematics, 17:449-467, 1965. |
| June 7 | 1-2pm | Alex Brodsky |
Reversible Space Equals Deterministic Space
K. Lange and P. McKenzie and A. Tapp. Journal of Computer and System Sciences, 60(2):354-367, 2000. |
| May 31 | 1-2pm | Will Evans | Even More Hardness of Approximation |
| May 24 | 1-2pm | Will Evans | More Hardness of Approximation |
| May 17 | 3-4pm | Will Evans | Orientation & Hardness of Approximation |