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TBA

Program

Last update: August 29

Complete proceedings can be found  (PDF file) here (opens in new window) .

First column, scheduled in ENG103, and second in ENG102.

We will hold registration with the welcome reception.

There will be also registration starting at 8:30am on Day 1, 2 and 3.

Continental breakfast will be available everyday outside ENG103 at 8:30am.

Attention: Make sure to enter ENG building from Church St entrance.

Map to ENG (external link, opens in new window) 

 

August 24:

Reception is at 6-8pm on August 24.

Drinks and snacks will be served.

Location: International room, International Living/Learning Centre (ILC)

240 Jarvis St, Toronto, ON M5B 2L1

Map (external link, opens in new window) 

Attention: Make sure to enter from Jarvis St entrance.

August 25:

  ENG103 ENG102
8:50am-9:20am
Welcome remarks  
9:20am-10:20am

Paul Erdős Memorial Lecture

Keynote presentation:

Particle Systems, Geometry, and Dynamic Networks

By Bernard Chazelle

 
10:20am-10:35am Coffee break  
10:35am-11:35am

Chair: Victor Milenkovic  

1.  (PDF file) Minimum Enclosing Spherical/Cylindrical Shells in High-Dimensional Streams (opens in new window) 
Authors: Mohammad Javad Eslami-Bidgoli and Hamid Zarrabi-Zadeh

2.  (PDF file) Fast Deterministic Approximation of Medoid in Rd (opens in new window) 
Authors: Ovidiu Daescu and Ka Yaw Teo.  

3.  (PDF file) Budgeted Steiner Networks: Three Terminals with Equal Path Weights (opens in new window) 
Authors: Jingjin Yu and Mario Szegedy

Chair: Carlos Seara

1.  (PDF file) Burning Number for the Points in the Plane (opens in new window) 
Authors: Mark Keil, Debajyoti Mondal and Ehsan Moradi.

2.  (PDF file) Computing Batched Depth Queries and the Depth of a Set of Points (opens in new window) 
Authors: Stephane Durocher, Alexandre Leblanc and Sachini Rajapakse

3.  (PDF file) On the Geometry of Stable Steiner Tree Instances (opens in new window) 
Authors: James Freitag, Neshat Mohammadi, Aditya Potukuchi and Lev Reyzin

11:35am-1:30pm Lunch break (on your own)  
1:30pm-2:30pm

Chair: Aditya Potukuchi

1.  (PDF file) Uniformly Monotone Partitioning of Polygons Revisited (opens in new window) 
Authors: Hwi Kim, Jaegun Lee and Hee-Kap Ahn


2.  (PDF file) Approximating Convex Polygons by Histogons (opens in new window) 
Authors: Jaehoon Chung, Sang Won Bae, Chan-Su Shin, Sang Duk Yoon and Hee-Kap Ahn

3.  (PDF file) Quasi-Twisting Convex Polyhedra (opens in new window) 
Authors: Joseph O'Rourke, Anna Lubiw, Ryuhei Uehara, Chie Nara, Thomas Hull, Klara Mundilova and Josef Tkadlec

Chair: Ovidiu Daescu

1.  (PDF file) Drawing complete outer-1-planar graphs in linear area (opens in new window) 
Author: Therese Biedl

2.  (PDF file) On the Biplanar and k-Planar Crossing Numbers (opens in new window) 
Authors: Alireza Shavali and Hamid Zarrabi-Zadeh

3.  (PDF file) A Sub-quadratic Algorithm for the Proximity Connected k-center Problem on Paths via Modular Arithmetic (opens in new window) 
Authors: Amirhossein Mozafari, Binay Bhattacharya and Tsunehiko Kameda

2:30pm-2:45pm Coffee break  
2:45pm-3:45pm

Chair: Konstantinos Georgiou

1.  (PDF file) Diverse Non Crossing Matchings (opens in new window) 
Authors: Neeldhara Misra, Harshil M. and Saraswati Nanoti

2.  (PDF file) High-Dimensional Axis-Aligned Bounding Box with Outliers (opens in new window)          
Authors: Ali Mostafavi and Ali Hamzeh

3.  (PDF file) Unfolding Some Classes of One-Layer Polycubes (opens in new window) 
Author: Josef Minařík

Chair: Therese Biedl

1.  (PDF file) ZHED is NP-complete (opens in new window) 
Authors: Sagnik Saha and Erik D. Demaine

2.  (PDF file) Unstacking Slabs in Megalit is NP-Hard (opens in new window) 
Authors: Kirby Gordon, Jacob Lezberg and Aaron Williams

3.  (PDF file) The Median Line Segment Problem: Computational Complexity and Constrained Variants (opens in new window) 
Authors: Ovidiu Daescu and Ka Yaw Teo

3:45pm-4:15pm Coffee break (group photo*)  
4:15pm-5:15pm

Chair: Joseph O'Rourke

Open problem sessions

 
7:00pm-9:00pm Pub Night**  

*Location: TMU building; SLC (Sheldon & Tracy Levy Student Learning Centre)
341 Yonge St, M5B 1S1

Map (external link, opens in new window) 

**Location: Duke of York
39 Prince Arthur Avenue, M5R 1B2
Light snacks and Drinks

Map (external link, opens in new window) 

August 26:

  ENG103 ENG102
9am-10am

Godfried Toussaint Memorial Lecture

Keynote presentation:

Obstacle Avoidance

By Subhash Suri

 
10am-10:15am Coffee break  
10:15am-11:35am

Chair: Joseph O’Rourke

1.  (PDF file) Weighted shortest path in equilateral triangular meshes (opens in new window) 
Authors: Prosenjit Bose, Guillermo Esteban and Anil Maheshwari

2.  (PDF file) Computational Complexity of One-Dimensional Origami and Its Application to Digital Signature (opens in new window) 
Authors: Junnosuke Hoshido, Tonan Kamata, Tsutomu Ansai and Ryuhei Uehara

3.  (PDF file) Discretization to Prove the Nonexistence of "Small" Common Unfoldings Between Polyhedra (opens in new window) 
Authors: Elena Arseneva, Erik D. Demaine, Tonan Kamata and Ryuhei Uehara

4.  (PDF file) Computational Complexity of Flattening Fixed-Angle Orthogonal Chains (opens in new window) 
Authors: Erik D. Demaine, Hiro Ito, Jayson Lynch and Ryuhei Uehara

Chair: David Mount

1.  (PDF file) Globally linked pairs in braced maximal outerplanar graphs (opens in new window) 
Authors: Dániel Garamvölgyi and Tibor Jordan

2.  (PDF file) Efficient Graph Reconstruction and Representation Using Augmented Persistence Diagrams (opens in new window) 
Authors: Anna Schenfisch, Brittany Terese Fasy, Samuel Micka, David L. Millman and Lucia Williams.  

3.  (PDF file) Optimally Tracking Labels on an Evolving Tree (opens in new window) 
Authors: Aditya Acharya and David Mount

4.  (PDF file) A 13/9-approximation of the average-2π/3-MST (opens in new window) 
Authors: Ahmad Biniaz, Prosenjit Bose and Patrick Devaney

11:35am-1:30pm Lunch break (on your own)  
1:30pm-2:30pm

Chair: Jan Vahrenhold

1.  (PDF file) Curve Stabbing Depth: Data Depth for Plane Curves (opens in new window) 
Authors: Stephane Durocher and Spencer Szabados

2.  (PDF file) Using Existential Theory of the Reals to Bound VC Dimension (opens in new window) 
Authors: Austin Watkins and Jeff Phillips

3.  (PDF file) A Constant Time Algorithm for Solving Simple Rolling Cube Mazes (opens in new window) 
Authors: Randal Tuggle, Davis Murphy and Nicholas Lorch

 

Chair: Debajyoti Mondal   

1.  (PDF file) Orthogonal Dissection into Few Rectangles (opens in new window) 
Author: David Eppstein

 

2.  (PDF file) Efficient Predicate Evaluation using Statistical Degeneracy Detection (opens in new window) 
Authors: Victor Milenkovic and Elisha Sacks

3.  (PDF file) Locked and Unlocked Smooth Embeddings of Surfaces (opens in new window) 
Author: David Eppstein

 

2:30pm-2:45pm Coffee break  
2:45pm-3:45pm

Chair: Erik Krohn

1.  (PDF file) Optimally Confining Lattice Polymers (opens in new window) 
Authors: Robert Barish and Tetsuo Shibuya

2.  (PDF file) Maximum Subbarcode Matching and Subbarcode Distance (opens in new window) 
Author: Oliver Chubet

3.  (PDF file) Diamonds are Forever in the Blockchain: Geometric Polyhedral Point-Set Pattern Matching (opens in new window) 
Authors: Gill Barequet, Shion Fukuzawa, Michael Goodrich, David Mount, Martha Osegueda and Evrim Ozel

Chair: Stephane Durocher

1.  (PDF file) A Randomized Algorithm for Non-crossing Matching of Online Points (opens in new window) 
Authors: Shahin Kamali, Pooya Nikbakht and Arezoo Sajadpour.


2.  (PDF file) Efficiently Enumerating Scaled Copies of Point Set Patterns (opens in new window) 
Authors: Aya Bernstine and Yehonatan Mizrahi

3.  (PDF file) Online Square Packing with Rotation (opens in new window) 
Authors: Shahin Kamali and Pooya Nikbakht

3:45pm-4pm
Coffee break  
4pm-5pm

Chair: Stephane Durocher

Business meeting

 
6pm-9pm Banquet dinner***  

***Location: International room, International Living/Learning Centre (ILC), 240 Jarvis St, M5B 2L1

Map (external link, opens in new window) 

Make sure to enter from Jarvis St entrance.

August 27:

  ENG103 ENG102
9am-10am

Ferran Hurtado Memorial Lecture

 

Keynote presentation:

Art Gallery Problems

By Jorge Urrutia

 

 
10am-10:15am Coffee break  
10:15am-11:15am

Chair: Jie Xiao

1.  (PDF file) Opposing Half Guards (opens in new window) 
Authors: Erik Krohn, Bengt J. Nilsson and Christiane Schmidt

2 (PDF file) . Reflections in an Octagonal Mirror Maze (opens in new window) 
Author: David Eppstein

3.  (PDF file) Computing Realistic Terrains from Imprecise Elevations (opens in new window) 
Authors: Anna Lubiw and Graeme Stroud

Chair: Ryuhei Uehara

1.  (PDF file) Quantitative Helly-type Hypergraph Chains (opens in new window) 
Author: Attila Jung

2.  (PDF file) A Theory of Spherical Diagrams (opens in new window) 
Author: Giovanni Viglietta

3.  (PDF file) Maximum Weight Convex Polytope (opens in new window) 
Authors: Ali Mohammad Lavasani, Denis Pankratov and Mohammad Ali Abam

11:15am-11:30am Coffee break  
11:30am-11:50am

Best student paper presentation:

 (PDF file) A bound for Delaunay flip algorithms on flat tori (opens in new window) 
Author: Loïc Dubois

 
11:50am Closing remarks, end of conference
 

Accepted papers

  • Ali Mostafavi and Ali Hamzeh. “High-Dimensional Axis-Aligned Bounding Box with Outliers”
  • Oliver Chubet. “Maximum Subbarcode Matching and Subbarcode Distance”
  • James Freitag, Neshat Mohammadi, Aditya Potukuchi and Lev Reyzin. “On the Geometry of Stable Steiner Tree Instances”
  • Jingjin Yu and Mario Szegedy. “Budgeted Steiner Networks: Three Terminals with Equal Path Weights”
  • Junnosuke Hoshido, Tonan Kamata, Tsutomu Ansai and Ryuhei Uehara. “Computational Complexity of One-Dimensional Origami and Its Application to Digital Signature”
  • Sagnik Saha and Erik D. Demaine. “ZHED is NP-complete”
  • Elena Arseneva, Erik D. Demaine, Tonan Kamata and Ryuhei Uehara. “Discretization to Prove the Nonexistence of "Small" Common Unfoldings Between Polyhedra”
  • Austin Watkins and Jeff Phillips. “Using Existential Theory of the Reals to Bound VC Dimension”
  • Randal Tuggle, Davis Murphy and Nicholas Lorch. “A Constant Time Algorithm for Solving Simple Rolling Cube Mazes”
  • Loïc Dubois. “A bound for Delaunay flip algorithms on flat tori”
  • Erik Krohn, Bengt J. Nilsson and Christiane Schmidt. “Opposing Half Guards”
  • Attila Jung. “Quantitative Helly-type Hypergraph Chains”
  • Victor Milenkovic and Elisha Sacks. “Efficient Predicate Evaluation using Statistical Degeneracy Detection”
  • Therese Biedl. “Drawing complete outer-1-planar graphs in linear area”
  • Anna Lubiw and Graeme Stroud. “Computing Realistic Terrains from Imprecise Elevations”
  • Hwi Kim, Jaegun Lee and Hee-Kap Ahn. “Uniformly Monotone Partitioning of Polygons Revisited”
  • Ovidiu Daescu and Ka Yaw Teo. “Fast Deterministic Approximation of Medoid in Rd.
  • Ovidiu Daescu and Ka Yaw Teo. “The Median Line Segment Problem: Computational Complexity and Constrained Variants”
  • Giovanni Viglietta. “A Theory of Spherical Diagrams”
  • Prosenjit Bose, Guillermo Esteban and Anil Maheshwari. “Weighted shortest path in equilateral triangular meshes”
  • Stephane Durocher, Alexandre Leblanc and Sachini Rajapakse. “Computing Batched Depth Queries and the Depth of a Set of Points”
  • Gill Barequet, Shion Fukuzawa, Michael Goodrich, David Mount, Martha Osegueda and Evrim Ozel. “Diamonds are Forever in the Blockchain: Geometric Polyhedral Point-Set Pattern Matching”
  • David Eppstein. “Reflections in an Octagonal Mirror Maze”
  • David Eppstein. “Locked and Unlocked Smooth Embeddings of Surfaces”
  • David Eppstein. “Orthogonal Dissection into Few Rectangles”
  • Jaehoon Chung, Sang Won Bae, Chan-Su Shin, Sang Duk Yoon and Hee-Kap Ahn. “Approximating Convex Polygons by Histogons”
  • Ahmad Biniaz, Prosenjit Bose and Patrick Devaney. “A 13/9-approximation of the average-2π/3-MST”
  • Joseph O'Rourke, Anna Lubiw, Ryuhei Uehara, Chie Nara, Thomas Hull, Klara Mundilova and Josef Tkadlec. “Quasi-Twisting Convex Polyhedra”
  • Erik D. Demaine, Hiro Ito, Jayson Lynch and Ryuhei Uehara. “Computational Complexity of Flattening Fixed-Angle Orthogonal Chains”
  • Josef Minařík. “Unfolding Some Classes of One-Layer Polycubes” 
  • Stephane Durocher and Spencer Szabados. “Curve Stabbing Depth: Data Depth for Plane Curves”
  • Mark Keil, Debajyoti Mondal and Ehsan Moradi. “Burning Number for the Points in the Plane” 
  • Dániel Garamvölgyi and Tibor Jordan. “Globally linked pairs in braced maximal outerplanar graphs”
  • Anna Schenfisch, Brittany Terese Fasy, Samuel Micka, David L. Millman and Lucia Williams. “Efficient Graph Reconstruction and Representation Using Augmented Persistence Diagrams”
  • Ali Mohammad Lavasani, Denis Pankratov and Mohammad Ali Abam. “Maximum Weight Convex Polytope”
  • Aditya Acharya and David Mount. “Optimally Tracking Labels on an Evolving Tree”
  • Aya Bernstine and Yehonatan Mizrahi. “Efficiently Enumerating Scaled Copies of Point Set Patterns”
  • Neeldhara Misra, Harshil M. and Saraswati Nanoti. “Diverse Non Crossing Matchings”
  • Mohammad Javad Eslami-Bidgoli and Hamid Zarrabi-Zadeh. “Minimum Enclosing Spherical/Cylindrical Shells in High-Dimensional Streams”
  • Alireza Shavali and Hamid Zarrabi-Zadeh. “On the Biplanar and k-Planar Crossing Numbers”
  • Amirhossein Mozafari, Binay Bhattacharya and Tsunehiko Kameda. “A Sub-quadratic Algorithm for the Proximity Connected k-center Problem on Paths via Modular Arithmetic”
  • Kirby Gordon, Jacob Lezberg and Aaron Williams. “Unstacking Slabs in Megalit is NP-Hard”
  • Shahin Kamali and Pooya Nikbakht. “Online Square Packing with Rotation”
  • Robert Barish and Tetsuo Shibuya. “Optimally Confining Lattice Polymers”
  • Shahin Kamali, Pooya Nikbakht and Arezoo Sajadpour. “A Randomized Algorithm for Non-crossing Matching of Online Points”
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