Search Results for author: Mohi Khansari

Found 15 papers, 2 papers with code

Asking for Help: Failure Prediction in Behavioral Cloning through Value Approximation

no code implementations8 Feb 2023 Cem Gokmen, Daniel Ho, Mohi Khansari

However, the black-box nature of end-to-end Imitation Learning models such as Behavioral Cloning, as well as the lack of an explicit state-value representation, make it difficult to predict failures.

Imitation Learning

Bayesian Imitation Learning for End-to-End Mobile Manipulation

no code implementations15 Feb 2022 Yuqing Du, Daniel Ho, Alexander A. Alemi, Eric Jang, Mohi Khansari

In this work we investigate and demonstrate benefits of a Bayesian approach to imitation learning from multiple sensor inputs, as applied to the task of opening office doors with a mobile manipulator.

Imitation Learning

BC-Z: Zero-Shot Task Generalization with Robotic Imitation Learning

no code implementations4 Feb 2022 Eric Jang, Alex Irpan, Mohi Khansari, Daniel Kappler, Frederik Ebert, Corey Lynch, Sergey Levine, Chelsea Finn

In this paper, we study the problem of enabling a vision-based robotic manipulation system to generalize to novel tasks, a long-standing challenge in robot learning.

Imitation Learning

Practical Imitation Learning in the Real World via Task Consistency Loss

no code implementations3 Feb 2022 Mohi Khansari, Daniel Ho, Yuqing Du, Armando Fuentes, Matthew Bennice, Nicolas Sievers, Sean Kirmani, Yunfei Bai, Eric Jang

To the best of our knowledge, this is the first work to tackle latched door opening from a purely end-to-end learning approach, where the task of navigation and manipulation are jointly modeled by a single neural network.

Domain Adaptation Imitation Learning

RL-CycleGAN: Reinforcement Learning Aware Simulation-To-Real

no code implementations CVPR 2020 Kanishka Rao, Chris Harris, Alex Irpan, Sergey Levine, Julian Ibarz, Mohi Khansari

However, this sort of translation is typically task-agnostic, in that the translated images may not preserve all features that are relevant to the task.

reinforcement-learning Reinforcement Learning (RL) +2

Modeling Long-horizon Tasks as Sequential Interaction Landscapes

no code implementations8 Jun 2020 Sören Pirk, Karol Hausman, Alexander Toshev, Mohi Khansari

We show that complex plans can be carried out when executing the robotic task and the robot can interactively adapt to changes in the environment and recover from failure cases.

Robot Manipulation

Action Image Representation: Learning Scalable Deep Grasping Policies with Zero Real World Data

no code implementations13 May 2020 Mohi Khansari, Daniel Kappler, Jianlan Luo, Jeff Bingham, Mrinal Kalakrishnan

Similar to computer vision problems, such as object detection, Action Image builds on the idea that object features are invariant to translation in image space.

Object object-detection +2

Scalable Multi-Task Imitation Learning with Autonomous Improvement

no code implementations25 Feb 2020 Avi Singh, Eric Jang, Alexander Irpan, Daniel Kappler, Murtaza Dalal, Sergey Levine, Mohi Khansari, Chelsea Finn

In this work, we target this challenge, aiming to build an imitation learning system that can continuously improve through autonomous data collection, while simultaneously avoiding the explicit use of reinforcement learning, to maintain the stability, simplicity, and scalability of supervised imitation.

Imitation Learning reinforcement-learning +1

Data-Efficient Learning for Sim-to-Real Robotic Grasping using Deep Point Cloud Prediction Networks

no code implementations21 Jun 2019 Xinchen Yan, Mohi Khansari, Jasmine Hsu, Yuanzheng Gong, Yunfei Bai, Sören Pirk, Honglak Lee

Training a deep network policy for robot manipulation is notoriously costly and time consuming as it depends on collecting a significant amount of real world data.

3D Shape Representation Object +2

Online Object Representations with Contrastive Learning

no code implementations10 Jun 2019 Sören Pirk, Mohi Khansari, Yunfei Bai, Corey Lynch, Pierre Sermanet

We propose a self-supervised approach for learning representations of objects from monocular videos and demonstrate it is particularly useful in situated settings such as robotics.

Contrastive Learning Object

Learning Latent Plans from Play

1 code implementation5 Mar 2019 Corey Lynch, Mohi Khansari, Ted Xiao, Vikash Kumar, Jonathan Tompson, Sergey Levine, Pierre Sermanet

Learning from play (LfP) offers three main advantages: 1) It is cheap.

Robotics

Learning Contracting Vector Fields For Stable Imitation Learning

no code implementations13 Apr 2018 Vikas Sindhwani, Stephen Tu, Mohi Khansari

We propose a new non-parametric framework for learning incrementally stable dynamical systems x' = f(x) from a set of sampled trajectories.

Imitation Learning

Learning 6-DOF Grasping Interaction via Deep Geometry-aware 3D Representations

1 code implementation24 Aug 2017 Xinchen Yan, Jasmine Hsu, Mohi Khansari, Yunfei Bai, Arkanath Pathak, Abhinav Gupta, James Davidson, Honglak Lee

Our contributions are fourfold: (1) To best of our knowledge, we are presenting for the first time a method to learn a 6-DOF grasping net from RGBD input; (2) We build a grasping dataset from demonstrations in virtual reality with rich sensory and interaction annotations.

3D Geometry Prediction 3D Shape Modeling +1

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