Yaron Lipman 

Department of Computer Science and Applied Mathematics
Weizmann Institute of Science  
Rehovot, 76100 Israel  
Ziskind Building, room 259

Email: yaron lipman weizmann ac il

 

 


Research Interests:

Deep learning of geometric and irregular data, Geometry Processing, Computer Graphics, Discrete Differential Geometry, Optimization, Computational anatomy/biology

 

 


Group:

Omri Puny (PhD 2021 - today; MSc 2019- 2021)
Lior Yariv (PhD 2020 - today; MSc 2019- 2020)
Matan Atzmon (PhD 2017-today)
Heli Ben-Hamu (PhD 2018- today; MSc 2017-2018)

Past:
Amos Gropp (MSc 2019- 2020)
Hadar Serviansky (MSc 2019- 2020)
Haggai Maron (PhD 2015-2019)
Nimrod Segol (Researcher 2018-2019)
Niv Haim (Researcher 2018-2019)
Roee Lazar (MSc 2017-2018)
Itay Kezurer (MSc 2014-2015; Researcher 2015-2018)
Nadav Dym (PhD 2014-2018)
Yam Kushinsky (MSc 2016-2018)
Anna Shtengel (MSc 2015-2017)
Noam Aigerman (PhD 2012-2016 )
Shahar Kovalsky (PhD 2011-2016 with Ronen Basri)
Roi Poranne (Postdoc 2013-2015)
Inbar Aharon (MSc 2013-2015)
Eli Libman (MSc 2013-2015 with Meirav Galun and Ronen Basri)
Ofer Bartal (MSc 2011-2012 with Ronen Basri)

 

 

Publications:


 2022

Frame Averaging for Invariant and Equivariant Network Design
Omri Puny*, Matan Atzmon*, Heli Ben-Hamu*, Ishan Misra, Aditya Grover, Edward J. Smith, Yaron Lipman
International Conference on Learning Representations (ICLR) 2022, Oral
Paper   Code
 

 2021

Moser Flow: Divergence-based Generative Modeling on Manifolds
Noam Rozen, Aditya Grover, Maximilian Nickel, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2021, Outstanding Paper Award
Paper   Code
 
Volume Rendering of Neural Implicit Surfaces
Lior Yariv, Jiatao Gu, Yoni Kasten, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2021, Oral
Paper   Project page
 
Phase Transitions, Distance Functions, and Implicit Neural Representations
Yaron Lipman
International Conference on Machine Learning (ICML) 2021
Paper   Code
 
Riemannian Convex Potential Maps
Samuel Cohen*, Brandon Amos*, Yaron Lipman
International Conference on Machine Learning (ICML) 2021
Paper   Code
 
Augmenting Implicit Neural Shape Representations with Explicit Deformation Fields
Matan Atzmon, David Novotny, Andrea Vedaldi, Yaron Lipman
Technical Report, 2021
Paper
 
Secondary Vertex Finding in Jets with Neural Networks
Jonathan Shlomi, Sanmay Ganguly, Eilam Gross, Kyle Cranmer, Yaron Lipman, Hadar Serviansky, Haggai Maron, Nimrod Segol
European Physical Journal C, 2021
Paper   Code
 
SALD: Sign Agnostic Learning with Derivatives
Matan Atzmon, Yaron Lipman
International Conference on Learning Representations (ICLR) 2021
Paper   Code
 

 2020

Multiview Neural Surface Reconstruction by Disentangling Geometry and Appearance
Lior Yariv, Yoni Kasten, Dror Moran, Meirav Galun, Matan Atzmon, Ronen Basri, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2020, Spotlight
Paper   Project page
 
Set2Graph: Learning Graphs From Sets
Hadar Serviansky, Nimrod Segol, Jonathan Shlomi, Kyle Cranmer, Eilam Gross, Haggai Maron, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2020
Paper   Code
 
Global Attention Improves Graph Networks Generalization
Omri Puny, Heli Ben-Hamu, Yaron Lipman
Graph Representation Learning and Beyond Workshop (ICML), 2020
Paper
Isometric Autoencoders
Amos Gropp, Matan Atzmon, Yaron Lipman
Technical Report, 2020
Paper
Implicit Geometric Regularization for Learning Shapes
Amos Gropp, Lior Yariv, Niv Haim, Matan Atzmon, Yaron Lipman
International Conference on Machine Learning (ICML) 2020
Paper   Code
 
SAL: Sign Agnostic Learning of Shapes from Raw Data
Matan Atzmon, Yaron Lipman
Computer Vision and Pattern Recognition (CVPR) 2020, Oral
Paper   Code
 
On Universal Equivariant Set Networks
Nimrod Segol, Yaron Lipman
International Conference on Learning Representations (ICLR) 2020
Paper
 

 2019

Open Problems: Approximation Power of Invariant Graph Networks
Haggai Maron, Heli Ben-Hamu, Yaron Lipman
Graph Representation Learning Workshop (NeurIPS) 2019
Paper
Provably Powerful Graph Networks
Haggai Maron*, Heli Ben-Hamu*, Hadar Serviansky*, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2019
Paper   Code   Blog post
 
Controlling Neural Level Sets
Matan Atzmon, Niv Haim, Lior Yariv, Ofer Israelov, Haggai Maron, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2019
Paper  
 
Surface Networks via General Covers
Niv Haim*, Nimrod Segol*, Heli Ben-Hamu, Haggai Maron, Yaron Lipman
International Conference on Computer Vision (ICCV) 2019
Paper   Code
 
On the Universality of Invariant Networks
Haggai Maron, Ethan Fetaya, Nimrod Segol, Yaron Lipman
International Conference on Machine Learning (ICML) 2019
Paper   Blog post
 
Sinkhorn Algorithm for Lifted Assignment Problems
Yam Kushinsky, Haggai Maron, Nadav Dym, Yaron Lipman
SIAM Journal on Imaging Sciences (SIIMS) 2019
Paper
 
Invariant and Equivariant Graph Networks
Haggai Maron, Heli Ben-Hamu, Nadav Shamir, Yaron Lipman
International Conference on Learning Representations (ICLR) 2019
Paper   Code   Blog post
 
A Linear Variational Principle for Riemann Mappings and Discrete Conformality
Nadav Dym, Raz Slutsky, Yaron Lipman
Proceedings of the National Academy of Sciences (PNAS), 116(3), 2019
Paper
 

 2018

(Probably) Concave Graph Matching
Haggai Maron, Yaron Lipman
Neural Information Processing Systems (NeurIPS) 2018, Spotlight
Paper   Code
 
Multi-chart Generative Surface Modeling
Heli Ben-Hamu, Haggai Maron, Itay Kezurer, Gal Avineri, Yaron Lipman
ACM SIGGRAPH Asia 2018
Paper   Code
 
Robust Optimization for Topological Surface Reconstruction
Roee Lazar, Nadav Dym, Yam Kushinksy, Zhiyang Huang, Tao Ju, Yaron Lipman
ACM SIGGRAPH 2018
Paper   Code
 
Point Convolutional Neural Networks by Extension Operators
Matan Atzmon*, Haggai Maron*, Yaron Lipman
ACM SIGGRAPH 2018
Paper   Code
 

 2017

DS++: A Flexible, Scalable and Provably Tight Relaxation for Matching Problems
Nadav Dym*, Haggai Maron*, Yaron Lipman
ACM SIGGRAPH Asia 2017
Paper   Code
 
Convolutional Neural Networks on Surfaces via Seamless Toric Covers
Haggai Maron, Meirav Galun, Noam Aigerman, Miri Trope, Nadav Dym, Ersin Yumer, Vladimir G. Kim, Yaron Lipman
ACM SIGGRAPH 2017
Paper   Code
 
Spherical Orbifold Tutte Embeddings
Noam Aigerman, Shahar Kovalsky, Yaron Lipman
ACM SIGGRAPH 2017
Paper   Code
 
Geometric Optimization via Composite Majorization
Anna Shtengel, Roi Poranne, Olga Sorkine-Hornung, Shahar Kovalsky, Yaron Lipman
ACM SIGGRAPH 2017
Paper   Code
 
Exact Recovery With Symmetries for Procrustes Matching
Nadav Dym, Yaron Lipman
SIAM J. Optim., 27(3)
Paper
 

 2016

Hyperbolic Orbifold Tutte Embeddings
Noam Aigerman, Yaron Lipman
ACM SIGGRAPH Asia 2016
Paper   Code
 
Accelerated Quadratic Proxy for Geometric Optimization
Shahar Kovalsky, Meirav Galun, Yaron Lipman
ACM SIGGRAPH 2016
Paper   Code
 
Point Registration via Efficient Convex Relaxation
Haggai Maron, Nadav Dym, Itay Kezurer, Shahar Kovalsky, Yaron Lipman
ACM SIGGRAPH 2016
Paper   Code
 

 2015

Wide baseline stereo matching with convex bounded distortion constraints
Meirav Galun*, Tal Amir*, Tal Hassner, Ronen Basri, Yaron Lipman
EEE International Conference on Computer Vision, Santiago, ICCV-15 (2015)
Paper
 
Orbifold Tutte Embeddings
Noam Aigerman, Yaron Lipman
ACM SIGGRAPH Asia 2015
Paper   Code
 
Large Scale Bounded Distortion Mappings
Shahar Kovalsky, Noam Aigerman, Ronen Basri, Yaron Lipman
ACM SIGGRAPH Asia 2015
Paper   Code
 
Seamless Surface Mappings
Noam Aigerman, Roi Poranne, Yaron Lipman
ACM SIGGRAPH 2015
Paper   Code
 
Tight Relaxations of Quadratic Matching
Itay Kezurer*, Shahar Kovalsky*, Ronen Basri, Yaron Lipman
Computer Graphics Forum, Vol. 34(5), 2015 (Symposium on Geometry Processing 2015)
Best paper award
Paper   Code
 
Homotopic Morphing of Planar Curves
Nadav Dym, Anna Shtengel, Yaron Lipman
Computer Graphics Forum, Vol. 34(5), 2015 (Symposium on Geometry Processing 2015)
Paper   Code
 

 2014

Lifted Bijections for Low Distortion Surface Mappings
Noam Aigerman, Roi Poranne, Yaron Lipman
ACM SIGGRAPH 2014
Paper
 
Controlling Singular Values with Semidefinite Programming
Shahar Kovalsky*, Noam Aigerman*, Ronen Basri, Yaron Lipman
ACM SIGGRAPH 2014
Paper  project page + code
 
Provably Good Planar Mappings
Roi Poranne, Yaron Lipman
ACM SIGGRAPH 2014
Paper   code
 
Feature Matching with Bounded Distortion
Yaron Lipman, Stav Yagev, Roi Poranne, David W. Jacobs, Ronen Basri
ACM Trans. Graph., Volume 33 Issue 3, May 2014 (to be presented in SIGGRAPH 2014)
Paper   code
 

Bijective Mappings of Meshes With Boundary and the Degree in Mesh Processing
Yaron Lipman
SIAM Journal on Imaging Sciences, Volume 7, No. 2, 2014
Paper

 

Approximation of Polyhedral Surface Uniformization
Yaron Lipman
Technical report

 

 2013

Injective and Bounded Distortion Mappings in 3D
Noam Aigerman, Yaron Lipman
ACM SIGGRAPH 2013
Project page + code

 
The continuous Procrustes distance between two surfaces
Yaron Lipman, Reema Al-Aifari, Ingrid Daubechies
Comm. in Pure and Applied Mathematics (CPAM), Volume 66 Issue 6, June 2013 (posted 2012)
Preprint
 

2012  

Bounded Distortion Mapping Spaces For Triangular Meshes
Yaron Lipman
ACM SIGGRAPH 2012
Paper   comment
code  (maximal conformal distortion, YALMIP, SOCP)

 

Fields On Symmetric Surfaces
Daniele Panozzo, Yaron Lipman, Enrico Puppo, Denis Zorin
ACM SIGGRAPH 2012
Paper

 

Simple Formulas For Quasiconformal Plane Deformations
Yaron Lipman, Vladimir Kim, Thomas Funkhouser
ACM Trans. Graph., Volume 31 Issue 5, August 2012
Paper

 

Symmetry-Guided Texture Synthesis and Manipulation.
Vladimir G. Kim, Yaron Lipman, Thomas Funkhouser
ACM Trans. Graph., Volume 31 Issue 3, May 2012

 

Conformal Wasserstein Distances: II. Computational Aspects and Extensions
Yaron Lipman, Jesus Puente, Ingrid Daubechies
Mathematics of Computation, Volume 82, 2013 (posted July 2012)
Paper

 

Sensor network localization by eigenvector synchronization over the Euclidean group
Mihai Cucuringu, Yaron Lipman, Amit Singer
ACM Trans. Sensor Networks, Volume 8 Issue 3, July 2012
Preprint

 

First Paleocene Record of Platychoerops (Primates,
Plesiadapidae), a New Species from Mouras Quarry, Mont deBerru, France
Doug M. Boyer, Loic Costeur, Yaron Lipman
American J. of Physical Anthropology, Volume 149 Issue 3, 2012

 

2011  

Algorithms to Automatically Quantify the Geometric Similarity of Anatomical Surfaces
Doug M. Boyer*, Yaron Lipman*, Elizabeth St. Clair, Jesus Puente, Biren A. Patel, Thomas Funkhouser, Jukka Jernvall, and Ingrid Daubechies
PNAS, vol. 108 no. 45, November 8, 2011
Paper
Code and data

 
Blended Intrinsic Maps
Vladimir Kim, Yaron Lipman, Thomas Funkhouser
ACM SIGGRAPH 2011
Project page

 

Conformal Wasserstein Distances: Comparing Surfaces in Polynomial Time
Yaron Lipman, Ingrid Daubechies
Advances in Mathematics, Volume 227, Issue 3, 20 June 2011
Paper  Technical report

 

Dirichlet Normal Surface Energy of Tooth Crowns, a New Technique of Molar Shape Quantification for Dietary Inference, Compared With Previous Methods in Isolation and in Combination
Jonathan M. Bunn, Doug M. Boyer, Jukka Jernvall, Yaron Lipman, Ingrid Daubechies
American J. of Physical Anthropology, Volume 145 Issue 2, 2011

 

2010  

Symmetry Factored Embedding And Distance
Yaron Lipman, Xiaobai Chen, Ingrid Daubechies, ThomasFunkhouser
ACM SIGGRAPH 2010
Project page

 

Biharmonic Distance
Yaron Lipman*, Raif Rustamov*, Thomas Funkhouser
ACM Trans. Graph., Volume 29 ,  Issue 3, June 2010
Project page

 

Mobius Transformations For Global Intrinsic Symmetry Analysis 
V. G. Kim, Y. Lipman, X. Chen, T. Funkhouser 
Computer Graphics Forum (Proc. of SGP) 2010
Paper

 

Derivation and Analysis of Green Coordinates
Yaron Lipman, David Levin
Comp. Methods and Function Theory, Vollume 10 Issue 1, June 2010
Preprint

 

Approximating Piecewise Smooth Functions
Yaron Lipman, David Levin
IMA Journal of Numerical Analysis, Volume 30 issue 4, 2010
Paper

 

 2009

Mobius Voting for Surface Correspondence
Yaron Lipman, Thomas Funkhouser
ACM SIGGRAPH 2009
Project page

 

Coordinates for Instant Image Cloning
Zeev Farbman, Gil Hoffer, Yaron Lipman, Daniel Cohen-Or, Dani Lischinski
ACM SIGGRAPH 2009
Project page

 

Interior Distance Using Barycentric Coordinates
Raif Rustamov, Yaron Lipman, and Thomas Funkhouser
Computer Graphics Forum (Symposium on Geometry Processing), 2009
Paper

 

Stable Moving Least-Squares
Yaron Lipman
J. of Approximation Theory, Volume 161 Issue 1, November 2009
Paper

 

 2008

Green Coordinates
Yaron Lipman, David Levin, Daniel Cohen-Or
ACM SIGGRAPH 2008
Paper  Code snippet

 

 2007

Parameterization-free Projection for Geometry Reconstruction
Yaron Lipman, Daniel Cohen-Or, David Levin, Hillel Tal-Ezer
ACM SIGGRAPH 2007
Project page

 

Volume and Shape Preservation via Moving Frame Manipulation
Yaron Lipman, Daniel Cohen-Or, Ran Gal, David Levin
ACM Trans. Graph. Volume 26 Issue 1, January 2007
Paper

 

Data-dependent Moving Least Squares For Faithful Surface Approximation
Yaron Lipman, Daniel Cohen-Or, David Levin
Symposium on Geometry Processing 2007
Project page

 

GPU-assisted Positive Mean Value Coordinates for Mesh Deformation
Yaron Lipman, Johannes Kopf, Daniel Cohen-Or, David Levin
Symposium on Geometry Processing 2007
Project page

 

Context-Aware Skeletal Shape Deformation
Ofir Weber, Olga Sorkine, Yaron Lipman, Craig Gotsman
Eurographics 2007
Project page

 

 2006

Error Bounds and Optimal Neighborhoods for MLS Approximation
Yaron Lipman, Daniel Cohen-Or, David Levin
Symposium on Geometry Processing 2006
Paper

 

 2005

Linear Rotation-Invariant Coordinates for Meshes
Yaron Lipman, Olga Sorkine, Daniel Cohen-Or, David Levin
ACM SIGGRAPH 2005
Paper

 

Laplacian Framework for Interactive Mesh Editing
Yaron Lipman, Olga Sorkine, Marc Alexa, Daniel Cohen-Or, David Levin
International Journal of Shape Modeling, Volume 11 Issue 1, 2005
Paper

 

 2004

Laplacian Surface Editing
Olga Sorkine, Daniel Cohen-Or, Yaron Lipman, Marc Alexa, Christian Rössl and Hans-Peter Seidel
Symposium on Geometry Processing 2004
Project page

 

Differential Coordinates for Interactive Mesh Editing
Yaron Lipman, Olga Sorkine, Daniel Cohen-Or, David Levin, Christian Rössl and Hans-Peter Seidel
Shape Modeling International 2004  
Paper