Zoran Popovic

126 papers A* 23A 1B 12C 15Misc 10Journal 41Unranked 23
YearRankTypeTitle / Venue / Authors
2025 Misc conf
Agentic AI-Driven Network Management: Case of ABEP in MRC Combining System for Wireless Signal Transmission Under BX Fading.
SoftCOM
Dragana Krstic, Suad Suljovic, Nenad Petrovic, Zoran Popovic
2025 J jnl
Investigating and Optimizing MINDWALC Node Classification to Extract Interpretable Decision Trees from Knowledge Graphs.
Mach. Learn. Knowl. Extr.
Maximilian Legnar, Joern-Helge Heinrich Siemoneit, Gilles Vandewiele, Jürgen Hesser, Zoran Popovic, Stefan Porubský, Cleo-Aron Weis
2024 Misc conf
RAG-Aided Approach to Network Experimentation: Case of Wireless Environment Channel Capacity Analysis under Fading and Co-Channel Interference Conditions with Beaulieu-Xie Distribution.
SoftCOM
Dragana Krstic, Suad Suljovic, Nenad Petrovic, Miodrag Brklje, Zoran Popovic
2023 A* conf
Benchmarking Distribution Shift in Tabular Data with TableShift.
NeurIPS
Josh Gardner, Zoran Popovic, Ludwig Schmidt
2023 J jnl
Benchmarking Distribution Shift in Tabular Data with TableShift.
CoRR
Josh Gardner, Zoran Popovic, Ludwig Schmidt
2023 Misc conf
Utilizing LCR of Wireless System with SC Receiver Weakened by Beaulieu-Xie Fading and κ-¼ Interference for Machine Learning-Based QoS Prediction.
SISY
Dragana Krstic, Suad Suljovic, Nenad Petrovic, Sinisa Minic, Zoran Popovic
2022 Misc conf
Determining the ABEP under the Influence of K -µ Fading and CCI with SC combining at L-branch Receiver Using Moment Generating Function.
SoftCOM
Dragana Krstic, Suad Suljovic, Nenad Petrovic, Sinisa Minic, Zoran Popovic
2022 — conf
Exploring the Role of Local and Global Explanations in Recommender Systems.
CHI Extended Abstracts
Marissa Radensky, Doug Downey, Kyle Lo, Zoran Popovic, Daniel S. Weld
2022 A* conf
Subgroup Robustness Grows On Trees: An Empirical Baseline Investigation.
NeurIPS
Josh Gardner, Zoran Popovic, Ludwig Schmidt
2022 J jnl
Subgroup Robustness Grows On Trees: An Empirical Baseline Investigation.
CoRR
Josh Gardner, Zoran Popovic, Ludwig Schmidt
2021 Misc conf
Determination of LCR for Multi-branch SC Receiver under the Effects of α-κ-µ Fading and Weibull Co-Channel Interference.
SoftCOM
Suad Suljovic, Dragana Krstic, Nenad Petrovic, Zoran Popovic
2021 J jnl
Exploring The Role of Local and Global Explanations in Recommender Systems.
CoRR
Marissa Radensky, Doug Downey, Kyle Lo, Zoran Popovic, Daniel S. Weld
2021 — conf
Level Crossing Rate of Next Generation Wireless Systems with Selection Combining in the Presence of k-µ Fading and Interference: Derivation and Simulation.
ConTEL
Dragana Krstic, Suad Suljovic, Nenad Petrovic, Zoran Popovic, Mihajlo C. Stefanovic
2020 Misc conf
Moments of Signals over Wireless Relay Fading Environment with Line-of-Sight.
SoftCOM
Dragana Krstic, Petar B. Nikolic, Zoran Popovic, Sinisa Minic, Mihajlo C. Stefanovic
2019 — conf
Automatic Generation of Problems and Explanations for an Intelligent Algebra Tutor.
AIED (1)
Eleanor O'Rourke, Eric Butler, Armando Díaz Tolentino, Zoran Popovic
2019 J jnl
De novo protein design by citizen scientists.
Nat.
Brian Koepnick, Jeff Flatten, Tamir Husain, Alex Ford, Daniel-Adriano Silva, Matthew J. Bick, Aaron Bauer, Gaohua Liu, Yojiro Ishida, Alexander Boykov, Roger D. Estep, Susan Kleinfelter, Toke Nørgård-Solano, Linda Wei, Foldit players, Gaetano T. Montelione, Frank DiMaio, Zoran Popovic, Firas Khatib, Seth Cooper, David Baker
2018 B conf
A Framework for Computer-Aided Design of Educational Domain Models.
VMCAI
Eric Butler, Emina Torlak, Zoran Popovic
2018 A* conf
Automatic Diagnosis of Students' Misconceptions in K-8 Mathematics.
CHI
Molly Q. Feldman, Ji Yong Cho, Monica Ong, Sumit Gulwani, Zoran Popovic, Erik Andersen
2018 A* conf
Empowering Families Facing English Literacy Challenges to Jointly Engage in Computer Programming.
CHI
Rahul Banerjee, Leanne Liu, Kiley Sobel, Caroline Pitt, Kung Jin Lee, Meng Wang, Sijin Chen, Lydia Davison, Jason C. Yip, Amy J. Ko, Zoran Popovic
2018 B ed.
Knowledge-Based and Intelligent Information & Engineering Systems: Proceedings of the 22nd International Conference KES-2018, Belgrade, Serbia, 3-5 September 2018.
KES
Robert J. Howlett, Lakhmi C. Jain, Zoran Popovic, Dejan B. Popovic, Slobodan N. Vukosavic, Carlos Toro, Yulia Hicks
2017 B conf
Analysis of problem-solving behavior in open-ended scientific-discovery game challenges.
EDM
Aaron Bauer, Jeff Flatten, Zoran Popovic
2017 J jnl
Collaborative Problem Solving in an Open-Ended Scientific Discovery Game.
Proc. ACM Hum. Comput. Interact.
Aaron Bauer, Zoran Popovic
2017 C conf
Dragon architect: open design problems for guided learning in a creative computational thinking sandbox game.
FDG
Aaron Bauer, Eric Butler, Zoran Popovic
2017 C conf
Synthesizing interpretable strategies for solving puzzle games.
FDG
Eric Butler, Emina Torlak, Zoran Popovic
2017 A* conf
Where to Add Actions in Human-in-the-Loop Reinforcement Learning.
AAAI
Travis Mandel, Yun-En Liu, Emma Brunskill, Zoran Popovic
2016 B conf
A Framework for Parameterized Design of Rule Systems Applied to Algebra.
ITS
Eric Butler, Emina Torlak, Zoran Popovic
2016 B conf
Brain Points: A Deeper Look at a Growth Mindset Incentive Structure for an Educational Game.
L@S
Eleanor O'Rourke, Erin Peach, Carol S. Dweck, Zoran Popovic
2016 B conf
Crowdsourcing Accurate and Creative Word Problems and Hints.
HCOMP
Yvonne Chen, Travis Mandel, Yun-En Liu, Zoran Popovic
2016 A* conf
Efficient Bayesian Clustering for Reinforcement Learning.
IJCAI
Travis Mandel, Yun-En Liu, Emma Brunskill, Zoran Popovic
2016 Misc conf
Empowering Children To Rapidly Author Games and Animations Without Writing Code.
IDC
Rahul Banerjee, Jason C. Yip, Kung Jin Lee, Zoran Popovic
2016 A* conf
Offline Evaluation of Online Reinforcement Learning Algorithms.
AAAI
Travis Mandel, Yun-En Liu, Emma Brunskill, Zoran Popovic
2016 A* conf
Proactive Sensing for Improving Hand Pose Estimation.
CHI
Dun-Yu Hsiao, Min Sun, Christy Ballweber, Seth Cooper, Zoran Popovic
2016 Misc conf
The k-μ-g random variable and the k-μ-g random process.
SoftCOM
Dragana Krstic, Mihajlo C. Stefanovic, Vesad Doljak, Zoran Popovic, Erich Leitgeb
2015 A* conf
A Framework for Automatically Generating Interactive Instructional Scaffolding.
CHI
Eleanor O'Rourke, Erik Andersen, Sumit Gulwani, Zoran Popovic
2015 B conf
Achieving 96% Mastery at National Scale through Inspired Learning and Generative Adaptivity.
L@S
Zoran Popovic
2015 A* conf
Automatic Game Progression Design through Analysis of Solution Features.
CHI
Eric Butler, Erik Andersen, Adam M. Smith, Sumit Gulwani, Zoran Popovic
2015 B conf
Demographic Differences in a Growth Mindset Incentive Structure for Educational Games.
L@S
Eleanor O'Rourke, Yvonne Chen, Kyla Haimovitz, Carol S. Dweck, Zoran Popovic
2015 — conf
Interactive Control of Diverse Complex Characters with Neural Networks.
NIPS
Igor Mordatch, Kendall Lowrey, Galen Andrew, Zoran Popovic, Emanuel Todorov
2015 J jnl
Large-Scale Educational Campaigns.
ACM Trans. Comput. Hum. Interact.
Yun-En Liu, Christy Ballweber, Eleanor O'Rourke, Eric Butler, Phonraphee Thummaphan, Zoran Popovic
2015 C conf
Nanocrafter: Design and Evaluation of a DNA Nanotechnology Game.
FDG
Jonathan Barone, Colin Bayer, Rowan Copley, Nova Barlow, Matthew Burns, Sundipta Rao, Georg Seelig, Zoran Popovic, Seth Cooper
2015 A* conf
Personalized Mathematical Word Problem Generation.
IJCAI
Oleksandr Polozov, Eleanor O'Rourke, Adam M. Smith, Luke Zettlemoyer, Sumit Gulwani, Zoran Popovic
2015 C conf
PointCraft: Harnessing Players' FPS Skills to Interactively Trace Point Clouds in 3D.
FDG
Kathleen Tuite, Rahul Banerjee, Noah Snavely, Jovan Popovic, Zoran Popovic
2015 A* conf
The Queue Method: Handling Delay, Heuristics, Prior Data, and Evaluation in Bandits.
AAAI
Travis Mandel, Yun-En Liu, Emma Brunskill, Zoran Popovic
2014 A* conf
Brain points: a growth mindset incentive structure boosts persistence in an educational game.
CHI
Eleanor O'Rourke, Kyla Haimovitz, Christy Ballweber, Carol S. Dweck, Zoran Popovic
2014 J jnl
Generalizing locomotion style to new animals with inverse optimal regression.
ACM Trans. Graph.
Kevin Wampler, Zoran Popovic, Jovan Popovic
2014 B conf
Hint systems may negatively impact performance in educational games.
L@S
Eleanor O'Rourke, Christy Ballweber, Zoran Popovic
2014 B conf
Learning Individual Behavior in an Educational Game: A Data-Driven Approach.
EDM
Seong Jae Lee, Yun-En Liu, Zoran Popovic
2014 J jnl
Motion fields for interactive character locomotion.
Commun. ACM
Yongjoon Lee, Kevin Wampler, Gilbert Bernstein, Jovan Popovic, Zoran Popovic
2014 A conf
Offline policy evaluation across representations with applications to educational games.
AAMAS
Travis Mandel, Yun-En Liu, Sergey Levine, Emma Brunskill, Zoran Popovic
2014 A* conf
Towards automatic experimentation of educational knowledge.
CHI
Yun-En Liu, Travis Mandel, Emma Brunskill, Zoran Popovic
2014 B conf
Trading Off Scientific Knowledge and User Learning with Multi-Armed Bandits.
EDM
Yun-En Liu, Travis Mandel, Emma Brunskill, Zoran Popovic
2014 C conf
User behavior transformation through dynamic input mappings.
FDG
Dun-Yu Hsiao, Seth Cooper, Christy Ballweber, Zoran Popovic
2013 A* conf
A mixed-initiative tool for designing level progressions in games.
UIST
Eric Butler, Adam M. Smith, Yun-En Liu, Zoran Popovic
2013 A* conf
A trace-based framework for analyzing and synthesizing educational progressions.
CHI
Erik Andersen, Sumit Gulwani, Zoran Popovic
2013 J jnl
Animal Locomotion Controllers From Scratch.
Comput. Graph. Forum
Kevin Wampler, Jovan Popovic, Zoran Popovic
2013 C conf
Automated redesign of local playspace properties.
FDG
Aaron William Bauer, Seth Cooper, Zoran Popovic
2013 B conf
Predicting Player Moves in an Educational Game: A Hybrid Approach.
EDM
Yun-En Liu, Travis Mandel, Eric Butler, Erik Andersen, Eleanor O'Rourke, Emma Brunskill, Zoran Popovic
2013 C conf
Quantifying over play: Constraining undesirable solutions in puzzle design.
FDG
Adam M. Smith, Eric Butler, Zoran Popovic
2013 C conf
The effects of age on player behavior in educational games.
FDG
Eleanor O'Rourke, Eric Butler, Yun-En Liu, Christy Ballweber, Zoran Popovic
2012 C conf
A case study of expressively constrainable level design automation tools for a puzzle game.
FDG
Adam M. Smith, Erik Andersen, Michael Mateas, Zoran Popovic
2012 — conf
Contact-Invariant Optimization for Hand Manipulation.
Symposium on Computer Animation
Igor Mordatch, Zoran Popovic, Emanuel Todorov
2012 J jnl
Continuous character control with low-dimensional embeddings.
ACM Trans. Graph.
Sergey Levine, Jack M. Wang, Alexis Haraux, Zoran Popovic, Vladlen Koltun
2012 J jnl
Discovery of complex behaviors through contact-invariant optimization.
ACM Trans. Graph.
Igor Mordatch, Emanuel Todorov, Zoran Popovic
2012 — conf
Evaluating Competitive Game Balance with Restricted Play.
AIIDE
Alexander Jaffe, Alex Miller, Erik Andersen, Yun-En Liu, Anna R. Karlin, Zoran Popovic
2012 — conf
Invited Talks.
AIIDE
Rich Hilleman, Marek P. Michalowski, Zoran Popovic, Hannes Högni Vilhjálmsson
2012 — conf
PDFs of time derivatives for SSC combiner at two time instants in Rayleigh fading channels.
CSNDSP
Dragana Krstic, Petar B. Nikolic, Goran Stamenovic, Zoran Popovic
2012 — conf
RRT-Based Game Level Analysis, Visualization, and Visual Refinement.
AIIDE
Aaron William Bauer, Zoran Popovic
2012 A* conf
The impact of tutorials on games of varying complexity.
CHI
Erik Andersen, Eleanor O'Rourke, Yun-En Liu, Rich Snider, Jeff Lowdermilk, David Truong, Seth Cooper, Zoran Popovic
2012 — conf
Verification games: making verification fun.
FTfJP@ECOOP
Werner Dietl, Stephanie Dietzel, Michael D. Ernst, Nathaniel Mote, Brian Walker, Seth Cooper, Timothy Pavlik, Zoran Popovic
2011 J jnl
Algorithm discovery by protein folding game players.
Proc. Natl. Acad. Sci. USA
Firas Khatib, Seth Cooper, Michael D. Tyka, Kefan Xu, Ilya Makedon, Zoran Popovic, David Baker, Foldit players
2011 C conf
Analysis of social gameplay macros in the Foldit cookbook.
FDG
Seth Cooper, Firas Khatib, Ilya Makedon, Hao Lü, Janos Barbero, David Baker, James Fogarty, Zoran Popovic, Foldit players
2011 J jnl
Composite control of physically simulated characters.
ACM Trans. Graph.
Uldarico Muico, Jovan Popovic, Zoran Popovic
2011 C conf
Feature-based projections for effective playtrace analysis.
FDG
Yun-En Liu, Erik Andersen, Rich Snider, Seth Cooper, Zoran Popovic
2011 — conf
Nonlinear Inverse Reinforcement Learning with Gaussian Processes.
NIPS
Sergey Levine, Zoran Popovic, Vladlen Koltun
2011 C conf
On the harmfulness of secondary game objectives.
FDG
Erik Andersen, Yun-En Liu, Rich Snider, Roy Szeto, Seth Cooper, Zoran Popovic
2011 J jnl
Performance analysis of selection diversity over exponentially correlated α- µ fading environment.
Int. J. Commun. Syst.
Zoran Popovic, Stefan Panic, Jelena A. Anastasov, Petar C. Spalevic, Mihajlo C. Stefanovic
2011 A* conf
PhotoCity: training experts at large-scale image acquisition through a competitive game.
CHI
Kathleen Tuite, Noah Snavely, Dun-Yu Hsiao, Nadine Tabing, Zoran Popovic
2011 A* conf
Placing a value on aesthetics in online casual games.
CHI
Erik Andersen, Yun-En Liu, Rich Snider, Roy Szeto, Zoran Popovic
2011 J jnl
Space-time planning with parameterized locomotion controllers.
ACM Trans. Graph.
Sergey Levine, Yongjoon Lee, Vladlen Koltun, Zoran Popovic
2011 Misc conf
The application of GIS in designing of wireless communication systems with SC combining in the presence of Ricean fading.
SoftCOM
Dragana Krstic, Goran Stamenovic, Stefan Panic, Zoran Popovic, Dejan D. Rancic, Mihajlo C. Stefanovic
2010 J jnl
Character animation in two-player adversarial games.
ACM Trans. Graph.
Kevin Wampler, Erik Andersen, Evan Herbst, Yongjoon Lee, Zoran Popovic
2010 — conf
Feature Construction for Inverse Reinforcement Learning.
NIPS
Sergey Levine, Zoran Popovic, Vladlen Koltun
2010 C conf
Gameplay analysis through state projection.
FDG
Erik Andersen, Yun-En Liu, Ethan Apter, François Boucher-Genesse, Zoran Popovic
2010 J jnl
Learning behavior styles with inverse reinforcement learning.
ACM Trans. Graph.
Seong Jae Lee, Zoran Popovic
2010 J jnl
Motion fields for interactive character locomotion.
ACM Trans. Graph.
Yongjoon Lee, Kevin Wampler, Gilbert Bernstein, Jovan Popovic, Zoran Popovic
2010 J jnl
Predicting protein structures with a multiplayer online game.
Nat.
Seth Cooper, Firas Khatib, Adrien Treuille, Janos Barbero, Jeehyung Lee, Michael Beenen, Andrew Leaver-Fay, David Baker, Zoran Popovic, Foldit players
2010 — ed.
Proceedings of the 2010 Eurographics/ACM SIGGRAPH Symposium on Computer Animation, SCA 2010, Madrid, Spain, 2010
Symposium on Computer Animation
Zoran Popovic, Miguel A. Otaduy
2010 C conf
Reconstructing the world in 3D: bringing games with a purpose outdoors.
FDG
Kathleen Tuite, Noah Snavely, Dun-Yu Hsiao, Adam M. Smith, Zoran Popovic
2010 — conf
Reconstructing the world in 3D: bringing games with a purpose outdoors.
HCOMP@KDD
Kathleen Tuite, Noah Snavely, Dun-Yu Hsiao, Adam M. Smith, Zoran Popovic
2010 J jnl
Terrain-adaptive bipedal locomotion control.
ACM Trans. Graph.
Jia-Chi Wu, Zoran Popovic
2010 C conf
The challenge of designing scientific discovery games.
FDG
Seth Cooper, Adrien Treuille, Janos Barbero, Andrew Leaver-Fay, Kathleen Tuite, Firas Khatib, Alex Cho Snyder, Michael Beenen, David Salesin, David Baker, Zoran Popovic
2009 J jnl
Compact character controllers.
ACM Trans. Graph.
Yongjoon Lee, Seong Jae Lee, Zoran Popovic
2009 J jnl
Contact-aware nonlinear control of dynamic characters.
ACM Trans. Graph.
Uldarico Muico, Yongjoon Lee, Jovan Popovic, Zoran Popovic
2009 J jnl
Optimal gait and form for animal locomotion.
ACM Trans. Graph.
Kevin Wampler, Zoran Popovic
2007 — conf
A sketching interface for articulated figure animation.
SIGGRAPH Courses
James Davis, Maneesh Agrawala, Erika Chuang, Zoran Popovic, David Salesin
2007 J jnl
Active learning for real-time motion controllers.
ACM Trans. Graph.
Seth Cooper, Aaron Hertzmann, Zoran Popovic
2007 — conf
Dynamic, expressive speech animation from a single mesh.
Symposium on Computer Animation
Kevin Wampler, Daichi Sasaki, Li Zhang, Zoran Popovic
2007 J jnl
Near-optimal character animation with continuous control.
ACM Trans. Graph.
Adrien Treuille, Yongjoon Lee, Zoran Popovic
2007 J jnl
Physically based rigging for deformable characters.
Graph. Model.
Steve Capell, Matthew Burkhart, Brian Curless, Tom Duchamp, Zoran Popovic
2007 Misc conf
Rethinking Algorithms for Games: Towards High-Fidelity Effects in Interactive Environments.
PG
Zoran Popovic
2006 — conf
A sketching interface for articulated figure animation.
SIGGRAPH Courses
James Davis, Maneesh Agrawala, Erika Chuang, Zoran Popovic, David Salesin
2006 — conf
Composition of complex optimal multi-character motions.
Symposium on Computer Animation
C. Karen Liu, Aaron Hertzmann, Zoran Popovic
2006 J jnl
Continuum crowds.
ACM Trans. Graph.
Adrien Treuille, Seth Cooper, Zoran Popovic
2006 — conf
Learning a correlated model of identity and pose-dependent body shape variation for real-time synthesis.
Symposium on Computer Animation
Brett Allen, Brian Curless, Zoran Popovic, Aaron Hertzmann
2006 J jnl
Model reduction for real-time fluids.
ACM Trans. Graph.
Adrien Treuille, Andrew Lewis, Zoran Popovic
2006 J jnl
Momentum-based parameterization of dynamic character motion.
Graph. Model.
Yeuhi Abe, C. Karen Liu, Zoran Popovic
2005 J jnl
Learning physics-based motion style with nonlinear inverse optimization.
ACM Trans. Graph.
C. Karen Liu, Aaron Hertzmann, Zoran Popovic
2005 — conf
Physically based rigging for deformable characters.
Symposium on Computer Animation
Steve Capell, Matthew Burkhart, Brian Curless, Tom Duchamp, Zoran Popovic
2004 J jnl
Fluid control using the adjoint method.
ACM Trans. Graph.
Antoine McNamara, Adrien Treuille, Zoran Popovic, Jos Stam
2004 — conf
Momentum-based parameterization of dynamic character motion.
Symposium on Computer Animation
Yeuhi Abe, C. Karen Liu, Zoran Popovic
2004 J jnl
Style-based inverse kinematics.
ACM Trans. Graph.
Keith Grochow, Steven L. Martin, Aaron Hertzmann, Zoran Popovic
2003 — conf
A sketching interface for articulated figure animation.
Symposium on Computer Animation
James Davis, Maneesh Agrawala, Erika Chuang, Zoran Popovic, David Salesin
2003 — conf
Estimating cloth simulation parameters from video.
Symposium on Computer Animation
Kiran S. Bhat, Christopher D. Twigg, Jessica K. Hodgins, Pradeep K. Khosla, Zoran Popovic, Steven M. Seitz
2003 J jnl
Keyframe control of smoke simulations.
ACM Trans. Graph.
Adrien Treuille, Antoine McNamara, Zoran Popovic, Jos Stam
2003 J jnl
Layered acting for character animation.
ACM Trans. Graph.
Mira Dontcheva, Gary D. Yngve, Zoran Popovic
2003 J jnl
Realistic modeling of bird flight animations.
ACM Trans. Graph.
Jia-Chi Wu, Zoran Popovic
2003 J jnl
The space of human body shapes: reconstruction and parameterization from range scans.
ACM Trans. Graph.
Brett Allen, Brian Curless, Zoran Popovic
2002 — conf
A multiresolution framework for dynamic deformations.
Symposium on Computer Animation
Steve Capell, Seth Green, Brian Curless, Tom Duchamp, Zoran Popovic
2002 J jnl
Articulated body deformation from range scan data.
ACM Trans. Graph.
Brett Allen, Brian Curless, Zoran Popovic
2002 J jnl
Interactive skeleton-driven dynamic deformations.
ACM Trans. Graph.
Steve Capell, Seth Green, Brian Curless, Tom Duchamp, Zoran Popovic
2002 J jnl
Synthesis of complex dynamic character motion from simple animations.
ACM Trans. Graph.
C. Karen Liu, Zoran Popovic
2000 J jnl
Controlling physics in realistic character animation.
Commun. ACM
Zoran Popovic
2000 A* conf
Editing Dynamic Properties of Captured Human Motion.
ICRA
Zoran Popovic
2000 A* conf
Interactive manipulation of rigid body simulations.
SIGGRAPH
Jovan Popovic, Steven M. Seitz, Michael A. Erdmann, Zoran Popovic, Andrew P. Witkin
1999 A* conf
Physically Based Motion Transformation.
SIGGRAPH
Zoran Popovic, Andrew P. Witkin
1995 A* conf
Motion warping.
SIGGRAPH
Andrew P. Witkin, Zoran Popovic