Lab Papers (GRASP)

The General Robotics, Automation, Sensing and Perception (GRASP) Lab is a multidisciplinary research laboratory at the University of Pennsylvania. Founded in 1979, the lab has grown to be one of the premier research labs focusing on fundamental research in robotics, vision, perception, control and automation.

Papers from 2010

Learning Tractable Word Alignment Models with Complex Constraints, João V. Graça, Kuzman Ganchev, and Ben Taskar

Single Cell Manipulation using Ferromagnetic Composite Microtransporters, Mahmut Selman Sakar, Edward B. Steager, Dal Hyung Kim, Min Jun Kim, George J. Pappas, and Vijay Kumar

On the Time Complexity of Information Dissemination via Linear Iterative Strategies, Shreyas Sundaram and Christoforos N. Hadjicostis

Control of Quantized Multi-Agent Systems with Linear Nearest Neighbor Rules: A Finite Field Approach, Shreyas Sundaram and Christosforos N. Hadjicostis

Papers from 2009

Multi-vehicle path planning in dynamically changing environments, Ali Ahmadzadeh, Nader Motee, Ali Jadbabaie, and George J. Pappas

Target Enumeration via Euler Characteristic Integrals, Yury Baryshnikov and Robert Ghrist

Optimized Stochastic Policies for Task Allocation in Swarms of Robots, Spring Berman, Adam Halasz, M. Ani Hsieh, and Vijay Kumar

Learning from Ambiguously Labeled Images, Timothee Cour, Benjamin Sapp, Chris Jordan, and Ben Taskar

Discrete Mathematics, Some Notes, Jean H. Gallier

Design of a Tunable Stiffness Composite Leg for Dynamic Locomotion, Kevin C. Galloway, Jonathan E. Clark, and Daniel E. Koditschek

Dependency Grammar Induction via Bitext Projection Constraints, Kuzman Ganchev, Jennifer Gillenwater, and Ben Taskar

Target Enumeration via Integration over Planar Sensor Networks, Robert Ghrist and Yuliy Barishnikov

March of the Sandbots, Daniel Goldman, Haldun Komsuoglu, and Daniel Koditschek

Gait Transitions for Quasi-Static Hexapedal Locomotion on Level Ground, Galen C. Haynes, Fred Cohen, and Daniel E. Koditschek

Rapid Pole Climbing with a Quadrupedal Robot, G C. Haynes, Alex Khripin, Goran Lynch, Jon Amory, Aaron Saunders, Alfred A. Rizzi, and Daniel E. Koditschek

Approximations of Stochastic Hybrid Systems, A Agung Julius and George J. Pappas

Trajectory Based Verification Using Local Finite-Time Invariance, A. Agung Julius and George J. Pappas

Harnessing bacterial power in microscale actuation, A. Agung Julius, M. Selman Sakar, Edward Steager, U Kei Cheang, MinJun Kim, Vijay Kumar, and George J. Pappas

Stochastic Modeling and Control of Biological Systems: The Lactose Regulation System of Escherichia Coli, Agung Julius, Ádám Halász, M Selman Sakar, Harvey Rubin, Vijay Kumar, and George J. Pappas

Genetic network identification using convex programming, A Julius, Michael Zavlanos, S Boyd, and George J. Pappas

Time-bounded Lattice for Efficient Planning in Dynamic Environments, Aleksandr Kushleyev and Maxim Likhachev

Sensitive dependence of the motion of a legged robot on granular media, Chen Li, P B. Umbanhowar, Haldun Komsuoglu, Daniel E. Koditschek, and Daniel Goldman

Path Clearance, Maxim Likhachev and Anthony Stentz

Control of Locomotion with Shape-Changing Wheels, Daniel Mellinger, Vijay Kumar, and Mark Yim

Maintaining Connectivity in Mobile Robot Networks, Nathan Michael, Michael M. Zavlanos, Vijay Kumar, and George J. Pappas

Vision-Based, Distributed Control Laws for Motion Coordination of Nonholonomic Robots, Nima Moshtagh, Nathan D. Michael, Ali Jadbabaie, and Kostas Daniilidis

Incremental Phi*: Incremental Any-Angle Path Planning on Grids, Alex Nash, Sven Koenig, and Maxim Likhachev

Joint covariate selection and joint subspace selection for multiple classification problems, Guillaume Obozinski, Ben Taskar, and Michael I. Jordan

Modeling and Analysis of Multi-hop Control Networks, Alur Rajeev, Alessandro D'Innocenzo, Karl H. Johansson, George James Pappas, and Gera Weiss

Toward tactilely transparent gloves: Collocated slip sensing and vibrotactile actuation, Joseph M. Romano, Steven R. Gray, Nathan T. Jacobs, and Katherine J. Kuchenbecker

Shape-based object recognition in videos using 3D synthetic object models, Alexander Toshev, Ameesh Makadia, and Kostas Daniilidis

Search-based Planning for a Legged Robot over Rough Terrain, Paul Vernaza, Maxim Likhachev, Subhrajit Bhattacharya, Sachin Chitta, Aleksandr Kushleyev, and Daniel D. Lee

A high fidelity ungrounded torque feedback device: The iTorqU 2.0, Kyle N. Winfree, Jamie E. Gewirtz, Thomas Mather, Jonathan Fiene, and Katherine J. Kuchenbecker

Papers from 2008

Elastic Multi-Particle Systems for Bounded-Curvature Path Planning, Ali Ahmadzadeh, Ali Jadbabaie, George J. Pappas, and Vijay Kumar

Determining interconnections in biochemical networks using linear programming, Elias August, Antonius Papachristodoulou, Ben Recht, Mark Roberts, and Ali Jadbabaie

Graph Cuts via l1 Norm Minimization, Arvind Bhusnurmath and Camillo J. Taylor

Robust and Scalable Transmission of Arbitrary 3D Models over Wireless Networks, Irene Wan Cheng, Lihang Ying, Kostas Daniilidis, and Anup Basu

Movie/Script: Alignment and Parsing of Video and Text Transcription, Timothee Cour, Chris Jordan, Eleni Miltsakaki, and Ben Taskar

A Reasoning Framework for Autonomous Urban Driving, Dave Ferguson, Christopher Baker, Maxim Likhachev, and John Dolan

Motion Planning in Urban Environments: Part I, Dave Ferguson, Thomas M. Howard, and Maxim Likhachev

Motion Planning in Urban Environments: Part II, Dave Ferguson, Thomas M. Howard, and Maxim Likhachev

Efficiently Using Cost Maps For Planning Complex Maneuvers, Dave Ferguson and Maxim Likhachev

Logarithms and Square Roots of Real Matrices, Jean H. Gallier

Multi-View Learning over Structured and Non-Identical Outputs, Kuzman Ganchev, Joao V. Graca, John Blitzer, and Ben Taskar

Better Alignments = Better Translations?, Kuzman Ganchev, Joao V. Graca, and Ben Taskar

BARCODES: THE PERSISTENT TOPOLOGY OF DATA, Robert Ghrist

Three examples of applied and computational homology, Robert Ghrist

From Discrete to Continuous and Back: Abstractions and Mesoscopic Phenomena in Cells, Ádám M. Halász, A. Agung Julius, George J. Pappas, and R. Vijay Kumar

Grassmann Discriminant Analysis: a Unifying View on Subspace-Based Learning, Jihun Hamm and Daniel D. Lee

Maintaining network connectivity and performance in robot teams, M. Ani Hsieh, Anthony Cowley, R. Vijay Kumar, and Camillo J. Taylor

Metabolic Networks Analysis using Convex Optimization, A. Agung Julius, Marcin Imielinski, and George J. Pappas

Probabilistic Testing for Stochastic Hybrid Systems, A. Agung Julius and George J. Pappas

Pareto optimal multi-robot coordination with acceleration constraints, Jae Bum Jung and Robert Ghrist

A Physical Model for Dynamical Arthropod Running on Level Ground, Haldun Komsuoglu, Kiwon Sohn, Robert J. Full, and Daniel E. Koditschek

Recycling controllers, Hadas Kress-Gazit, Nora Ayanian, George J. Pappas, and Vijay Kumar

Courteous Cars: Decentralized Multiagent Traffic Coordination, Hadas Kress-Gazit, David C. Connor, Howie Choset, Alfred A. Rizzi, and George J. Pappas

Automatically synthesizing a planning and control subsystem for the DARPA urban challenge, Hadas Kress-Gazit and George J. Pappas

Haptography: capturing the feel of real objects to enable authentic haptic rendering (invited paper), Katherine J. Kuchenbecker

The Touch Thimble: Providing Fingertip Contact Feedback During Point-Force Haptic Interaction, Katherine J. Kuchenbecker, David Ferguson, Michael Kutzer, Matthew Moses, and Allison M. Okamura

Planning Long Dynamically-Feasible Maneuvers For Autonomous Vehicles, Maxim Likhachev and Dave Ferguson

Anytime search in dynamic graphs, Maxim Likhachev, Dave Ferguson, Geoff Gordon, Anthony Stentz, and Sebastian Thrun

Information Value-Driven Approach to Path Clearance with Multiple Scout Robots, Maxim Likhachev and Anthony Stentz

Probabilistic Planning with Clear Preferences on Missing Information, Maxim Likhachev and Anthony Stentz

R* Search, Maxim Likhachev and Anthony Stentz

Density Functions for Navigation-Function-Based Systems, Savvas G. Loizou and Ali Jadbabaie

Steering laws for distributed motion coordination of kinematic agents in three dimensions, Nima Moshtagh and Ali Jadbabaie

Bearing-Only Control Laws For Balanced Circular, Nima Moshtagh, Nathan Michael, Ali Jadbabaie, and Kostas Daniilidis

Optimal Control of Spatially Distributed Systems, Nader Motee and Ali Jadbabaie

Effects of Delay on the Functionality of Large-scale Networks, Antonis Papachristodoulou and Ali Jadbabaie

Approximation of the joint spectral radius using sum of squares, Pablo A. Parillo and Ali Jadbabaie

Automatic Configuration Recognition Methods in Modular Robots, Michael Park, Sachin Chitta, Alex Teichman, and Mark Yim

Towards Testable Neuromechanical Control of Architectures for Running, Shai Revzen, Daniel E. Koditschek, and R J. Full

Topological Repairing of 3D Digital Images, Marcelo Siqueira, Longin Jan Latecki, Nicholas Tustisin, Jean H. Gallier, and James C. Gee

Construction of C Surfaces from Triangular Meshes Using Parametric Pseudo-Manifolds, Marcelo Siqueira, Dianna Xu, and Jean H. Gallier

Integrating a Hierarchy of Simulation Tools for Legged Robot Locomotion, Andrew Slatton, Yang Ding, P B. Umbanhowar, Daniel Goldman, Galen C. Haynes, Haldun Komsuoglu, Daniel E. Koditschek, and Daniel Cohen

Biologically Inspired Climbing with a Hexapedal Robot, M. J. Spenko, G. C. Haynes, J. A. Sanders, M. R. Cutkosky, Alfred A. Rizzi, R. J. Full, and Daniel E. Koditschek

Approximate Reduction of Dynamical Systems, Paulo Tabuada, Aaron D. Ames, Agung Julius, and George J. Pappas

A Necessary and Sufficient Condition for Consensus Over Random Networks, Alireza Tahbaz-Salehi and Ali Jadbabaie

A Necessary and Sufficient Condition for Consensus Over Random Networks, Alireza Tahbaz-Salehi and Ali Jadbabaie

Distributed coverage verification in sensor networks without location information, Alireza Tahbaz-Salehi and Ali Jadbabaie

Distributed coverage verification in sensor networks without location information, Alireza Tahbaz-Salehi and Ali Jadbabaie

On the Optimal Assignment of Conference Papers to Reviewers, Camillo J. Taylor

Solving Image Registration Problems Using Interior Point Methods, Camillo J. Taylor and Arvind Bhusnurmath

Solving Stereo Matching Problems Using Interior Point Methods, Camillo J. Taylor and Arvind Bhusnurmath

Online, self-supervised terrain classification via discriminatively trained submodular Markov random fields, Paul Vernaza, Ben Taskar, and Daniel D. Lee

Identification of stable genetic networks using convex programming, Michael M. Zavlanos, A. Agung Julius, Stephen P. Boyd, and George J. Pappas

Distributed Connectivity Control of Mobile Networks, Michael M. Zavlanos and George J. Pappas

A Distributed Auction Algorithm for the Assignment Problem, Michael M. Zavlanos, Leonid Spesivtsev, and George J. Pappas

Distributed Topology Control of Dynamic Networks, Michael M. Zavlanos, Alireza Tahbaz-Salehi, Ali Jadbabaie, and George J. Pappas

Dynamic Assignment in Distributed Motion Planning With Local Coordination, Michael Zavlanos and George J. Pappas

Papers from 2007

Symbolic Control and Planning of Robotic Motion [Grand Challenges of Robotics], Calin Belta, Antonio Bicci, Magnus Egerstedt, Emilio Frazzoli, Eric Klavins, and George J. Pappas

Bio-Inspired Group Behaviors for the Deployment of a Swarm of Robots to Multiple Destinations, Spring Berman, Ádám Halász, R. Vijay Kumar, and Stephen Pratt

Solving the Graph Cut Problem via l1 Norm Minimization, Arvind Bhusnurmath and Camillo J. Taylor

Proprioceptive localization for a quadrupedal robot on known terrain, Sachin Chitta, Paul Vernaza, Roman Geykhman, and Daniel D. Lee

Robust Sampling for MITL Specifications, Georgios E. Fainekos and George J. Pappas

Clifford Algebras, Clifford Groups, and a Generalization of the Quaternions: The Pin and Spin Groups , Jean H. Gallier

Discrete Mathematics for Computer Science Some Notes, Jean H. Gallier

Notes on Convex Sets, Polytopes, Polyhedra, Combinatorial Topology, Voronoi Diagrams and Delaunay Triangulations, Jean H. Gallier

The Classification Theorem for Compact Surfaces and a Detour on Fractals, Jean H. Gallier

Approximate Bisimulation Relations for Constrained Linear Systems, Antoine Girard and George J. Pappas