no code implementations • 30 Sep 2023 • Jake Ketchum, Sophia Schiffer, Muchen Sun, Pranav Kaarthik, Ryan L. Truby, Todd D. Murphey
Gait generation for soft robots is challenging due to the nonlinear dynamics and high dimensional input spaces of soft actuators.
1 code implementation • 26 Sep 2023 • Thomas A. Berrueta, Allison Pinosky, Todd D. Murphey
The assumption that data are independent and identically distributed underpins all machine learning.
no code implementations • 9 Dec 2020 • Thomas A. Berrueta, Ana Pervan, Kathleen Fitzsimons, Todd D. Murphey
For a given task, we specify an optimal agent, and compute an alphabet of behaviors representative of the task.
Robotics
1 code implementation • 30 Nov 2020 • Wanxin Jin, Todd D. Murphey, Zehui Lu, Shaoshuai Mou
This paper proposes a novel approach that enables a robot to learn an objective function incrementally from human directional corrections.
no code implementations • 12 Oct 2020 • Giorgos Mamakoukas, Maria L. Castano, Xiaobo Tan, Todd D. Murphey
This paper presents a generalizable methodology for data-driven identification of nonlinear dynamics that bounds the model error in terms of the prediction horizon and the magnitude of the derivatives of the system states.
2 code implementations • 5 Aug 2020 • Wanxin Jin, Todd D. Murphey, Dana Kulić, Neta Ezer, Shaoshuai Mou
The time stamps of the keyframes can be different from the time of the robot's actual execution.
no code implementations • 5 Jun 2020 • Ian Abraham, Ahalya Prabhakar, Todd D. Murphey
We show that our method is able to maintain Lyapunov attractiveness with respect to the equilibrium task while actively generating data for learning tasks such, as Bayesian optimization, model learning, and off-policy reinforcement learning.
Active Learning Robotics
no code implementations • 8 Feb 2019 • Ian Abraham, Ahalya Prabhakar, Todd D. Murphey
This paper develops a method for robots to integrate stability into actively seeking out informative measurements through coverage.
Robotics
no code implementations • 13 Jun 2018 • Ian Abraham, Todd D. Murphey
We present a decentralized ergodic control policy for time-varying area coverage problems for multiple agents with nonlinear dynamics.
Robotics Systems and Control
no code implementations • 31 May 2018 • Ian Abraham, Anastasia Mavrommati, Todd D. Murphey
Exploration with respect to the information density based on the data-driven measurement model enables localization.
Robotics
no code implementations • 5 Sep 2017 • Ian Abraham, Ahalya Prabhakar, Mitra J. Z. Hartmann, Todd D. Murphey
Current methods to estimate object shape---using either vision or touch---generally depend on high-resolution sensing.
Robotics
no code implementations • 28 Aug 2017 • Anastasia Mavrommati, Emmanouil Tzorakoleftherakis, Ian Abraham, Todd D. Murphey
Although a number of solutions exist for the problems of coverage, search and target localization---commonly addressed separately---whether there exists a unified strategy that addresses these objectives in a coherent manner without being application-specific remains a largely open research question.
Robotics