C&O Reading Group
Mondays 4:30PM pizza; talk at 4:45PM.
The C&O reading group is run by graduate students, post-docs and
faculty. Currently we are meeting once per week. The main purpose of
our meetings is letting people know what we are working on or what we
find interesting in recent and classic publications. Our meetings are
also appropriate for practice talks or presentations of ongoing
research. E-mail reminders for our presentations are sent on a weekly
basis, one day prior to our meetings. If you want to give a talk, or
to be added to our mailing list, or if you have any comment, please
contact the host
Some guidelines, and how we think of our reading group:
· Talks are usually 1 hour long. This may include a 5-10 mins break.
· Talks end with a short discussion on relevant open problems.
· Speakers are free to choose their topics. Our focus though is on whatever touches on Algorithms or is relevant to Combinatorial Problems.
· Speakers do not assume any familiarity of the selected topic from the side of the audience. Presentations usually start with a high level exposition of the result, and finish with its technical contribution. At the end we try to have a 5-10 mins discussion of relevant open problems.
· Dates are assigned to speakers much in advance. Topics may not be announced till the last moment. If you choose a paper, please announce your intention to avoid conflicts.
Winter 16 term:
Our
(pizza) meetings for W16 will take place on Mondays, 4:30-5:45pm, in MC
6486
,
unless otherwise specified. Talks start at 4:45pm sharp.
· Please subscribe to our mailing list to receive reminders and last-moment change notifications (hwolkowicz@uwaterloo.ca).
Date |
Speaker |
Topic |
Apr. 4, 2016 |
Nathan Lindzey |
Parallel algorithms for perfect matchings abstract |
March 21, 2016 |
Gabriel Gauthier-Shalom |
The mathematics of juggling |
March 14, 2016 |
David Lou |
Principal Angles and Vectors of Two Subspaces |
March 07, 2016 |
Nishad Kothari |
The Perfect Matching Polytope and Solid Graphs, abstract |
February 29, 2016 |
Julian Romero |
Fourier Analysis, Chordal Graphs and Sums of Squares |
February 22, 2016 |
Yan Xu |
Title: Counting walks on Graphs, abstract |
February 08, 2016 |
|
T.B.A |
February 01, 2016 |
|
T.B.A |
January 25, 2016 |
Gabriel Gauthier-Shalom |
**postponed to Mar 21/16** |
January 18, 2016 |
Patrick Dornian |
A brief introduction to the h-vector and its specializations, and abstract |
January 11, 2016 |
|
T.B.A |
January 04, 2016 |
N\A |
N\A |
November 30, 2015 |
Fernando Afonso |
“A branch-and-cut-and-price algorithm for the Pollution Routing Problem” |
November 23, 2015 |
Garnet Akeyr |
"Aligned curves and height functions on Jacobians of curves"
Relevant paper Holmes D., (arXiv:1402.0647) |
November 16, 2015 |
Elisabeth Gaar |
“Modifying the Lovász Theta Function for Obtaining Upper Bounds on the Stability Number”
Original and joint work with Franz Rendl. |
November 09, 2015 |
Nargiz Kalantarova |
“Low rank matrix recovery using Schatten-p quasi norm minimization”
by M.-C. Yue and A. M.-C. So, (arXiv:1209.0377v4) |
November 02, 2015 |
André Linhares |
“On the Minimum-Cost Chain-Constrained Spanning Tree Problem”
Original and joint work with Chaitanya Swamy. Relevant papers [1]. |
October 26, 2015 |
Randy Yee |
“ECDLP and Improved Baby-Step Giant-Step”
by Galbraith, S. D., Wang, P. and Zhang, F. [1], |
October 19, 2015 |
Pavel Shuldiner |
“Plane Partitions & Some Sweet Generating Functions” by Kamioka, S. (arXiv15) |
October 05, 2015 |
N\A |
N\A |
September 28, 2015 |
N\A |
N\A |
September 21, 2015 |
Mehdi Karimi |
"A gentle overview of SDP representable sets and SDP applications" By Vanderberghe, L., and Boyd S. ( SIAM Review 1996) and Goemans, M. X. and Williamson D. P. (JACM 1995) |
September 14, 2015 |
N\A |
N\A |
July 27, 2015 |
Hao Sun |
“Separating Maximally Violated Comb Inequalities in Planar Graphs” By Fleischer and Tardos (Math of OR 1999) |
July 13, 2015 |
Alan Arroyo |
“Drawing complete graphs with an specified set of crossings” By Kynčl (Discrete & Computational Geometry 2011) |
July 6, 2015 |
Harmony Zhan |
“Some constructions of integral graphs” By Mohammadian and Tayfeh-Rezaie (Linear and Multilinear Algebra 2010) |
June 29, 2015 |
Cameron Marcott |
"Combinatorial Geometries, Convex Polyhedra, and Schubert Cells" By Gelfand, Goresky, MacPherson and Serganova (Adv in Math 1987) |
June 22, 2015 |
Luis Ruiz |
“Fast Lattice Point Enumeration With Minimal Overhead” By Micciancio and Walter (IACR Cryptology Archive 2014) |
June 15, 2015 |
Dessalegn Hirpa |
"The generalized trust region subproblem (GTRS)" By Pong and Wolkovicz (Comp. Opt. and Appl 14) |
June 8, 2015 |
Arash Haddadan |
“Bin packing and discrepancy theory” By Eisenbrand, Pálvölgyi and Rothvoß (SODA11) |
June 1, 2015 |
Andre Linhares |
“Changing Bases: Multistage Optimization for Matroids and Matchings” By Gupta, Talwar, and Wieder (ICALP14) |
May 25, 2015 |
Isaac Fung |
"Online Network Design Algorithms via Hierarchical Decompositions" By S. Umboh (arXiv14) |
May 11, 2015 |
Julian Romero |
“A Positive Semidefinite Approximation for the cone of Non-negative Polynomials” By J. Romero and M. Velasco (arXiv14) |
May 4, 2015 |
Jalaj Upadhyay |
“Differential Privacy in the Streaming Model” |
April 6, 2015 |
Miaolan Xie |
“Cone, Polytope and Ellipsoid” By F. John |
March 30, 2015 |
Alexander Lange |
“Maximizing Social Influence in Nearly Optimal Time" By Borgs, Brautbar, Chayes, and Lucier (SODA14) |
March 23, 2015 |
Kanstantsin Pashkovich |
“The Power of Deferral: Maintaining the Constant-Competitive Steiner Tree" by Gu, Gupta and Kumar (arXiv 2013) |
March 16, 2015 |
John M. Schanck |
"The Closest Vector Problem with Preprocessing" By Dadush, egev, Stephens-Davidowitz (arXiv 2014) |
March 9, 2015 |
Tor Myklebust |
“Interior-point methods in convex optimisation" by Myklebust and Tuncel (arXiv14) |
March 2, 2015 |
Umang Bhaskar |
“Market Equilibria in Polynomial time for Fixed Number of Goods or Agents” by Devanur and Kannan |
February 23, 2015 |
Sara Ahmadian |
“Achieving Anonymity via Clustering” By Aggarwal, Feder, Kenthapadi, Khuller, Panigrahy, Thomas, Zhu (ACM Transactions on Algorithms 2010) |
February 16, 2015 |
N/A |
N/A (reading week) |
February 9, 2015 |
Andreas Feldmann |
“Node-Weighted Network Design in Planar and Minor-Closed Families of Graphs” By Chekuri, Ene, Vakilian (ICALP12) |
February 2, 2015 |
Alan Arroyo |
By Ábrego, Aichholzer, Fernández-Merchant, McQuillan, Mohar, Mutzel, Ramos, Richter, Vogtenhuber (arXiv 2013) |
January 26, 2015 |
Nishad Kothari |
“Near-bipartite bricks” |
January 19, 2015 |
Mehdi Karimi |
“Statistical-Computational Tradeoffs in Planted Problems with a Growing Number of Clusters” By Chen and Xu (arXiv 2014) |
January 12, 2015 |
Ahmad Abdi |
“A quick note on matroids” Original and joint work with Peter Nelson. |
December 1, 2014 |
Laurent Poirrier |
“Linear Programming Crossover” By Megiddo (ORSA Journal on Computing 1991) |
November 24, 2014 |
Cancelled |
Cancelled |
November 17, 2014 |
Patrick Roncal |
"Fast Computing Betweenness Centrality with Virtual Nodes on Large Sparse Networks." By Yang and Chen (PLoS ONE 2011) |
November 10, 2014 |
Abbas Mehrabian |
“A Graph-Theoretic Game and Its Application to the k-Server Problem “ By Alon, Karp, Peleg, and West ( SIAM J. on Comp. 1993) |
November 3, 2014 |
Zhihan Gao |
“A tutorial on the Lasserre hierarchy” By Rothvoß ( MAPSP Tutorial, 2013) |
October 27, 2014 |
Cameron Marcott |
"Total Positivity: Tests and Parametrizations" by Fomin and Zelevinsky (Math. Intelligencer 2000) |
October 20, 2014 |
Arash Haddadan |
by Skutella (SODA'15) |
October 13, 2014 |
HOLIDAY |
N/A |
October 6, 2014 |
Andre Linhares |
“Approximating max-min weighted T-joins” by Iwata and Ravi (OR letters 2013) |
September 29, 2014 |
Harmony Zhan |
“Constructing infinite bipartite Ramanujan graphs” By Marcus, Spielman and Srivastava (FOCS13) |
September 22, 2014 |
Luis Ruiz |
“On the (Im)possibility of Obfuscating Programs” By Barak et al. (CRYPTO01) |
September 15, 2014 |
Miaolan Xie |
“A gentle introduction to Spectral Clustering” By von Luxburg (Statistics and Computing, 17 (4), 2007) |
July 28, 2014 |
Jalaj Upadhyay |
“Differentially Private Low-rnk approximation for low-coherence matrices” |
July 21, 2014 |
Andreas Feldman |
“Improved approximation for 3-dimensional matching via bounded pathwidth local search” By Cygan (FOCS13) |
July 14, 2014 |
Linda Farczadi |
“Stable marriage with general preferences” By Farczadi, Georgiou and Könemann (SAGT14) |
July 7, 2014 |
N/A |
Open Problem Session |
June 30, 2014 |
HOLIDAY |
N/A |
June 23, 2014 |
Saeed Rezaei |
“On the odd cycles of normal graphs” By De Simone and Korner (Discrete Applied Mathematics 1999) |
June 16, 2014 |
Vinayak Pathak |
“Shortest reconfiguration paths in the solution space of Boolean formulas” By Mouawad, Nishimura, Pathak, Raman (arXiv 2014) |
June 9, 2014 |
Ian Post |
"Improved Approximation Algorithms for Prize-Collecting Steiner Tree and TSP" by Archer, Bateni, Hajiaghayi, and Karloff |
June 2, 2014 |
John M. Schanck |
"Structural Lattice Reduction: Generalized Worst-Case to Average-Case Reductions" by Gama, Izabachene, Nguyen and Xie. |
May 26, 2014 |
Ahmad Abdi |
“The weak perfect graph theorem” |
May 19, 2014 |
HOLIDAY |
N/A |
May 12, 2014 |
Sara Ahmadian |
“New approximability results robust k median problem” By Bhattacharya, Chalermsook, Mehlhorn, Neumann (arXiv 2013) |
May 5, 2014 |
Mehdi Karimi |
“Exponential Lower Bounds for Polytopes in Combinatorial Optimization” By Fiorini, Massar, Pokutta, Yiwary and de Wolf (arXiv11) |
March 31, 2014 |
Mohammad Shadravan |
"A Logarithmic Integrality Gap Bound for Directed Steiner Tree in Quasi-bipartite Graphs" (original work) |
March 24, 2014 |
Luis Ruiz |
“Lattice Reduction Algorithms: Theory and Practice” by Phong Q. Nguyen (EUROCRYPT11) [additional relevant reference] |
March 17, 2014 |
Alex Lange |
"Approximation Algorithms for Fragmenting a Graph against a Stochastically-Located Threat" by Gwen Spencer and David Shmoys (WAOA 2011). |
March 10, 2014 |
Narges Simjour |
"Clustering with Local Restrictions" by Lokshtanov and Marx, (ICALP 2011) |
March 3, 2014 |
Cameron Marcott |
“Computing Schubert Polynomials” by N. Bergeron and S. Billey |
February 24, 2014 |
Harmony Zhan |
“Complex Hadamard Matrices, Instantaneous Uniform Mixing and Cubes” by A. Chan. (arXiv 2013) |
February 10, 2014 |
Andre Linhares |
"Fast approximation algorithms for the diameter and radius of sparse graphs" by Roditty and Williams (STOC 2013) |
January 27, 2014 |
Linda Farczadi |
“A polyhedral approach to stable matchings” |
January 20, 2014 |
Ningchuan Wang |
"Lower Bound for Vertex Separator and Graph Partitioning Problem” |
January 13, 2014 |
Andreas Feldmann |
“A Survey of Fixed Parameter Approximation” |
December 2, 2013 |
Ian Post |
"A strongly polynomial algorithm for generalized flow maximization" by Laszlo Vegh (ArXiv13) |
November 25, 2013 |
Nishad Kothari |
“Ear-decompositions of nonbipartite matching-covered graphs” |
November 18, 2013 |
Abbas Mehrabian |
“Quantum query complexity of some graph problems” by Durr, Heiligman, Hoyer and Mhalla (SIAM J. Comput. 2006) |
November 11, 2013 |
Isaac Fung |
“Net and Prune: A Linear Time Algorithm for Euclidean Distance Problems” by Har-Peled and Raichel (STOC13) |
November 4, 2013 |
Jason Liu |
“Constant Integrality Gap LP formulations of Unsplittable Flow on a Path” by Anagnostopoulos, Grandoni, Leonardi, Wiese (IPCO13) |
October 28, 2013 |
Jalaj Upadhyay |
“Random Projections, Graph Sparsification, and Differential Privacy” by Upadhyay (ePrint13) |
October 21, 2013 |
Fidel Barrera-Cruz |
“On how to draw a graph” by W.T. Tutte (result outline by J. Geelen). If time allows it, some applications will be discussed. |
October 7, 2013 |
Mohammad Shadravan |
"Sparsest cut on bounded treewidth graphs: algorithms and hardness results" by Gupta, Talwar, Witmer (STOC13) |
September 30, 2013 |
Ahmad Abdi |
"On the directed Steiner tree polyhedron", by Abdi, Feldmann, Guenin, Könemann and Sanita |
September 25, 2013 |
Abbas Mehrabian |
“Basic Network Creation Games” by Alon, Demaine, Hajiaghayi and Leighton (SiDMa13) |
September 18, 2013 |
Venus Lo |
“Max flows in O(nm) time or better” by J.B. Orlin (STOC13) |
July 24, 2013 |
Sara Ahmadian |
“Simultaneous Source Location” by Andreev, Garrod, Maggs and Meyerson (APPROX04) |
July 17, 2013 |
Srinivasan Arunachalam |
“A fast Quantum mechanical algorithm for database Search” by Lov K. Grover (STOC '96) |
July 10, 2013 |
Linda Farczadi |
"Approximation of maximum stable marriage" by Zoltán Király |
July 3, 2013 |
Harmony Zhan |
“Graph Reconstruction - A Survey” by Bondy and Hemminger (Journal of Graph Theory 1977) |
June 26, 2013 |
Zhihan Gao |
"On Integrality Ratios for Assymetric TSP in the Sherali-Adams Hierarchy" Original work (J. Cheriyan, K. Georgiou, Z. Gao and S. Singla ICALP13) |
June 19, 2013 |
Zac Friggstad |
“The Bounded-Regret Vehicle Routing Problem (BVRP)” Original work (Z. Friggstad and C. Swamy). |
June 12 ,2013 |
Vinayak Pathak |
"Reconfiguration problems: A survey" A survey based on [1]. |
June 5, 2013 |
Ehsan Ebrahimzadeh |
"Sufficient conditions on existence of fix-free codes" |
May 29, 2013 |
Elaheh Fata |
"Approximation Algorithms for the Bottleneck Asymmetric Travelling Salesman Problem" by An, Kleinberg and Shmoys (APPROX10) |
May 22, 2013 |
Seyed Saeed Rezaei |
"Line-graphs of cubic graphs are normal" by Zsolt Patakfalvi (arXiv08) |
May 15, 2013 |
Mohammad Shadravan |
“Directed Steiner Tree and the Lasserre Hierarchy" by T. Rothvoß (arXiv12) |
May 8, 2013 |
Ian Post |
"Linear vs Semidefinite Extended Formulations: Exponential Separation and Strong Lower Bounds" by Fiorini, Massar, Pokutta, Tiwary and de Wolf (STOC12) |
May 1, 2013 |
Nishad Kothari |
“K_4-free and prism-free planar matching covered graphs” |
April 17, 2013 |
Sina Sadeghian |
"The Diffusion of Networking Technologies" by Goldberg and Liu (SODA'13) |
April 10, 2013 |
Zac Friggstad |
"Approximating k-Median via Pseudo-Approximation" by Li and Svensson (manuscript) |
April 3, 2013 |
Fidel Barrera-Cruz |
"Morphing Planar Graph Drawings with a Polynomial Number of Steps" by Alamdari, Angelini, Chan, Di Battista, rati, Lubiw, atrignani, Roselli, Singla, Wilkinson (SODA13) |
March 27, 2013 |
Jalaj Upadhyay |
"Privacy and the Johnson-Linderstrauss Lemma" |
March 20, 2013 |
Andreas Feldmann |
"Prize-collecting Steiner Problems on Planar Graphs" by Bateni, Chekuri, Ene, Hajiaghayi, Korula and Marx (SODA11) |
March 13, 2013 |
Guru Prashanth |
"Catch Them If You Can: How to Serve Impatient Users" by Cygan, Englert, Gupta, Mucha and Sankowski (ITCSC13) |
March 6, 2013 |
Narges Simjour |
"Fixed-Parameter Tractability of Directed Multiway Cut Parameterized by the Size of the Cutset" by R. Chitnis, M. Hajiaghayi, and D. Marx (SODA12) |
February 27, 2013 |
Zhihan Gao |
"Eight-Fifth Approximation for TSP Paths" by A. Sebö (To appear in IPCO 2013) |
February 13, 2013 |
Vinayak Pathak |
"Using partial cubes to find shortest paths in sublinear time" |
February 6, 2013 |
Sara Ahmadian |
"Randomized Primal-Dual analysis of RANKING for Online Bipartite Matching" by Devanur, Jain and Kleinberg (SODA13) |
January 30, 2013 |
Linda Farczadi |
"Balanced Outcomes in Social Exchange Networks" by Kleiberg and Tardos (STOC08) |
January 23, 2013 |
Ahmad Abdi |
From Pfaffian Orientations to Packing and Covering |
January 16, 2013 |
Venkatesh Raman |
"A 4k^2 kernel for feedback vertex set" by Thomasse (ACM Transaction on Algorithms 2010) |
December 13, 2012 |
Zhihan Gao |
"Integrality gaps of linear and semi-definite programming relaxations for Knapsack" by Karlin, Mathieu, and Nguyen (IPCO'11) |
December 6, 2012 |
Leanne Stuive |
"A Constructive Version of Lehman's Theorem and Applications in Flow Problems" Thesis related subject. |
November 29, 2012 |
Guru Prashanth |
"Welfare and Profit Maximization with Production Costs" by Blum, Gupta, Mansour, and Sharma (FOCS11) |
November 22, 2012 |
Andreas Feldmann |
"Matroids and Integrality Gaps for Hypergraphic Steiner Tree Relaxations" by Goemans, Olver, Rothvoß and Zenklusen (FOCS12) |
November 15, 2012 |
Sara Ahmadian |
"A 5-approximation algorithm for capacitated facility location problem" by Bansal, Garg and Gupta (ESA12) |
November 8, 2012 |
Olivier Durand de Gevigney |
"Basic Packing of Arborescences" by Durand de Gevigney, Nguyen and Szigeti (arXiv12) |
November 1, 2012 |
Linda Farczadi |
"An efficient algorithm for nucleolus and prekernel computation in some classes by Faigle, Kern and Kuipers (Tech. Report 1998) |
October 25, 2012 |
Sina Sadeghian |
"Approximate k -MSTs and k -Steiner Trees via the Primal-Dual Method and Lagrangean Relaxation" by by Chudak, Roughagarden and Williamson (IPCO01) |
October 18, 2012 |
Vinayak Pathak |
"On a Linear Program for Minimum-Weight Triangulation" by Yousefi and Young (SODA12) |
October 11, 2012 |
Nishad Kothari |
"Matching Structure and the Matching Lattice" by Lovász (JCT Series B, 1987) |
October 4, 2012 |
Devanshu Pandey |
"Min-Max Tree Covers of Graphs" Talk will be based on "Improved Approximation Algorithms for the Min-Max Tree Cover and Bounded Tree Cover Problems" by Reza khani and Salavatipour. (APPROX11) , and his own research. |
September 27, 2012 |
Abbas Mehrabian |
"The hitting and cover times of random walks on finite graphs using local degree information" by Ikeda, Kubo and Yamashita (Theor. Comput. Sci. 2009) |
September 20, 2012 |
Zac Friggstad |
"Advances on Matroid Secretary Problems: Free Order Model and Laminar Case" by Patrick Jaillet, José A. Soto, Rico Zenklusen (arXiv12) |
July 26, 2012 |
Hadi Minooei |
"Optimal auctions with correlated bidders are easy" by Dobzinski, Fu and Kleinberg (STOC11) |
July 19, 2012 |
Abbas Mehrabian |
"Constructive
Discrepancy Minimization by Walking on The Edges" |
July 12, 2012 |
Ahmad Abdi |
"Packing Odd Circuit Covers" by Abdi and Guenin (2012) |
July 5, 2012 |
Nishad Kothari |
by Johnsona, Robertsonb, Seymoura, and Thomasc (Journal of Combinatorial Theory 2001) |
June 28, 2012 |
Sara Ahmadian |
"A Primal-Dual Approximation Algorithm for Min-Sum Single-Machine Scheduling Problems" by Cheung and Shmoys (APPROX11) |
June 21, 2012 |
Leanne Stuive |
"Matroidal Degree-Bounded Minimum Spanning Trees" by Zenklusen (SODA12) |
June 14, 2012 |
Laura Sanita |
"Extensions and limits to vertex sparsification" by Leighton and Moitra (STOC10) |
June 7, 2012 |
Guru Prashanth |
"One Tree Suffices: A Simultaneous O(1)-Approximation for Single-Sink Buy-at-Bulk" by Goel and Post (FOCS11) |
May 31, 2012 |
Fidel Barrera-Cruz |
"Graph Connectivities, Network Coding, and Expander Graphs" by Cheung, Lau and Leung (FOCS11) |
May 24, 2012 |
Vinayak Pathak |
"Flip Distance Between Two Triangulations of a Point-Set is NP-complete" by Lubiw and Pathak (Arxiv12) |
May 17, 2012 |
Zhihan Gao |
"A Constant Factor Approximation for Minimum λ-Edge-Connected k-Subgraph with Metric Costs" by Safari and Salavatipour (SIAM J. Discrete Math. 25 (3): 1089-1102, 2011) |
May 10, 2012 |
Costis Georgiou |
"Subexponential Algorithms for Set-Cover" By Chlamtac, Friggstad and Georgiou (Arxiv12) |
May 3, 2012 |
Devanshu Pandey |
By Chakrabarty and Swamy, (IPCO11) |
April 26, 2012 |
Zac Friggstad |
"The Connected T-Join Problem in General Metrics" by Cheriyan, Friggstad and Gao. (2012) |
April 19, 2012 |
Isaac Fung |
by Andrews, Hajiaghayiy, Karloff and Moitra (SODA11) |
April 12, 2012 |
Soroush Alamdari |
by Alamdari, Fata, Smith (Arxiv12) |
March 29, 2012 |
Sahil Singla |
"PTAS for Eucledian k-TSP and Orienteering Problems" This will be based on "The Orienteering Problem in the Plane Revisited" by Chen and Har-Peled, SIAM J. Comput. 38(1): 385-397 (2008) |
March 22, 2012 |
Marco Blanco |
“Bin Packing via Discrepancy of Permutations” by Eisenbrand, Pálvölgyi, Rothvoß (SODA11) |
March 8, 2012 |
Hadi Minooei |
“An impossibility result for truthful combinatorial auctions with submodular valuations” by Dobzinski, (STOC11) |
March 1, 2012 |
Ahmad Abdi |
“Packing Binary Clutters and the Cycling Conjecture” A survey. Relevant reference Seymour77 |
February 16, 2012 |
Abbas Mehrabian |
“Testing Properties of Directed Graphs: Acyclicity and Connectivity” by Bender and Ron ICALP 2000 and RSA 2002 |
February 8, 2012 |
Sara Ahmadian |
“Constant Factor Approximation Algorithm forthe Knapsack Median Problem” By Amit Kumar (SODA12). |
February 1, 2012 |
Vinayak Pathak |
"On Range Searching in the Group Model and Combinatorial Discrepancy." by Kasper Green Larsen (FOCS11) |
January 25, 2012 |
Leanne Stuive |
"Edge-Disjoint Paths in Planar Graphs." Relevant reference: Séguin-Charbonneua,Shephard-FOCS 2011 |
January 18, 2012 |
Nishad Kothari |
"Width Parameters for Directed Graphs" Relevant references: Hunter-Kreutzer07, Kintali-Kothari-Kumar11. |
January 11, 2012 |
Devanshu Pandey |
by Immorlica, Kalai, Lucier, Moitra, Postlewaite, and Tennenhotz (STOC11) |
December 14, 2011 |
Costis Georgiou |
“A tutorial on Lift-and-Project Systems” |
December 7, 2011 |
Leanne Stuive |
“Improved Mincut and Maxflow in Planar Undirected Graphs” by Italiano, Nussbaum, Sankowski and Wulff-Nilsen (STOC11) |
November 30, 2011 |
Nima Mousavi |
“Perfect Matchings in O(n log n) Time in Regular Bipartite Graphs” by Goel, Kapralov and Khanna (STOC10) |
November 23, 2011 |
Soroush Alamdari |
“Planar and Poly-Arc Lombardi Drawings” by Duncan, Eppstein, Goodrich, Kobourov and Löffler (Graph Drawing 2011) |
November 16, 2011 |
Zac Friggstad |
"Santa Claus Schedules Jobs on Unrelated Machines" by Ola Svenssonn (STOC11) |
November 9, 2011 |
Abbas Mehrabian |
"Min-Max Graph Partitioning and Small-Set Expansion" by Bansal, Feige, Krauthgamer, Makarychev, Nagarajan, Naor and Schwartz (FOCS11) |
November 2, 2011 |
Marco Blanco |
“Primal-Dual Schema and Lagrangian Relaxation for the k-Location-Routing Problem” by Carnes and Shmoys (APPROX11) |
October 26, 2011 |
Fidel Barrera-Cruz |
"Three-coloring triangle-free planar graphs in linear time" by Dvorak, Kawarabayashi and Thomas (SODA09) |
October 19, 2011 |
Hadi Minooei |
"Towards Optimal Bayesian Algorithmic Mechanism Design" by Bei and Huang (SODA11) |
October 12, 2011 |
Malcolm Sharpe |
by Kaiser (Discrete & Computational Geometry, 1997) |
October 5, 2011 |
Malcolm Sharpe |
“Jump Number of Two-Directional Orthogonal Ray Graphs” by Soto and Telha (IPCO11) |
September 21, 2011 |
Isaac Fung |
“Approximating Graphic TSP by Matchings” by Mömke and Svensson (FOCS11) |
September 14, 2011 |
Costis Georgiou |
“How bad is forming your own opinion?” by Bindel, Kleinberg and Oren (FOCS11) |
July 26, 2011 |
Abbas Mehrabian |
"Constructive Algorithms for Discrepancy Minimization" by Nikhil Bansal. |
July 12, 2011 |
Malcolm Sharpe |
"Matroid matching: the power of local search" by Lee, Sviridenko and Vondrak (STOC10) |
July 5, 2011 |
Fidel Barrera-Cruz |
“On Succinct Convex Greedy Drawing of 3-Connected Plane Graphs” by He and Zhang (SODA11) |
June 28, 2011 |
Jochen Könemann |
“Set Cover with Ordered Replacement - Additive and Multiplicative Gaps” by Eisenbrand, Kakimura, Rothvoß, Sanita (IPCO11) |
June 21, 2011 |
Costis Georgiou |
"On a one-dimensional problem concerning random space filling" by Renyi (Publ. Math. Inst. Hung. Acad. Sci., 1958) |
June 7, 2011 |
Marco Blanco |
"The
Matroid Median Problem" |
May 31, 2011 |
Soroush Hosseini |
"Approximate
range searching in higher dimension" |
May 24, 2011 |
Hadi Minooei |
“Multi-unit Auctions with Budget Limits” by Dobzinski, Lavi and Nisan (FOCS08). |
May 17, 2011 |
Elyot Grant |
“Tight
lower bounds for the size of epsilon-nets” |
May 10, 2011 |
Abbas Mehrabian |
"Computing the Independence Number of Intersection Graphs" by Fox and Pach (SODA11). |
May 3, 2011 |
Malcolm Sharpe |
"Cohen and Nutov's Application of Zelikovsky's Greedy Heuristic to Tree Augmentation, with Matroid Generalization" Original work. Relevant references: Zelikovsky 1995, Cohen, Nutov 2011 |
April 18, 2011 |
Malcolm Sharpe |
by Cohen and Nutov (Manuscript 2011). |
April 11, 2011 |
Hadi Minooei |
"Multi-unit auctions with budget-constrained bidders" by Borgs, Chayes, Immorlica, Mahdian and Saberi (EC05). |
April 4, 2011 |
Costis Georgiou |
“On the Approximability of Budget Feasible Mechanisms" by Chen, Gravin and Lu (SODA11). |
March 29, 2011 |
Abbas Mehrabian |
"Faster generation of random spanning trees" by Kelner, and Madry (FOCS09). |
March 22, 2011 |
Elyot Grant |
"Some New APX-hardness results for Geometric Set Cover Problems" Original work. (jointly with Timothy Chan) |
March 15, 2011 |
Krystal Guo |
"Prizing
on Paths: A PTAS for the Highway Problem" |
March 8, 2011 |
Chaitanya Swamy |
“From
Convex Optimization to Randomized Mechanisms: Toward Optimal
Combinatorial Auctions for Submodular Bidders" |
February 29, 2011 |
Malcolm Sharpe |
"Dependent
Randomized Rounding via Exchange Properties of Combinatorial
Structures" |
February 15, 2011 |
Costis Georgiou |
“An improved LP-based approximation for steiner tree” by Byrka, Grandoni, Rothvoß and Sanità (STOC11). |
February 8, 2011 |
Jochen Könemann |
by Chakrabarty, Könemann and Pritchard (Operations Letters 2010) |
February 1, 2011 |
Costis Georgiou |
“Fooling strong LP and SDP hierarchies for Vertex Cover” Relevant references: G., Magen, Tourlakis 2009, Benabbas, Chan, G., Magen 2010 |