Search Results for author: Kourosh Hakhamaneshi

Found 8 papers, 4 papers with code

Pretraining Graph Neural Networks for few-shot Analog Circuit Modeling and Design

1 code implementation29 Mar 2022 Kourosh Hakhamaneshi, Marcel Nassar, Mariano Phielipp, Pieter Abbeel, Vladimir Stojanović

We show that pretraining GNNs on prediction of output node voltages can encourage learning representations that can be adapted to new unseen topologies or prediction of new circuit level properties with up to 10x more sample efficiency compared to a randomly initialized model.

Semi-supervised Offline Reinforcement Learning with Pre-trained Decision Transformers

no code implementations29 Sep 2021 Catherine Cang, Kourosh Hakhamaneshi, Ryan Rudes, Igor Mordatch, Aravind Rajeswaran, Pieter Abbeel, Michael Laskin

In this paper, we investigate how we can leverage large reward-free (i. e. task-agnostic) offline datasets of prior interactions to pre-train agents that can then be fine-tuned using a small reward-annotated dataset.

D4RL Offline RL +2

Skill Preferences: Learning to Extract and Execute Robotic Skills from Human Feedback

no code implementations11 Aug 2021 Xiaofei Wang, Kimin Lee, Kourosh Hakhamaneshi, Pieter Abbeel, Michael Laskin

A promising approach to solving challenging long-horizon tasks has been to extract behavior priors (skills) by fitting generative models to large offline datasets of demonstrations.

Hierarchical Few-Shot Imitation with Skill Transition Models

1 code implementation ICML Workshop URL 2021 Kourosh Hakhamaneshi, Ruihan Zhao, Albert Zhan, Pieter Abbeel, Michael Laskin

To this end, we present Few-shot Imitation with Skill Transition Models (FIST), an algorithm that extracts skills from offline data and utilizes them to generalize to unseen tasks given a few downstream demonstrations.

JUMBO: Scalable Multi-task Bayesian Optimization using Offline Data

1 code implementation2 Jun 2021 Kourosh Hakhamaneshi, Pieter Abbeel, Vladimir Stojanovic, Aditya Grover

Such a decomposition can dynamically control the reliability of information derived from the online and offline data and the use of pretrained neural networks permits scalability to large offline datasets.

Bayesian Optimization Gaussian Processes

AutoCkt: Deep Reinforcement Learning of Analog Circuit Designs

1 code implementation6 Jan 2020 Keertana Settaluri, Ameer Haj-Ali, Qijing Huang, Kourosh Hakhamaneshi, Borivoje Nikolic

Domain specialization under energy constraints in deeply-scaled CMOS has been driving the need for agile development of Systems on a Chip (SoCs).

Signal Processing

BagNet: Berkeley Analog Generator with Layout Optimizer Boosted with Deep Neural Networks

no code implementations23 Jul 2019 Kourosh Hakhamaneshi, Nick Werblun, Pieter Abbeel, Vladimir Stojanovic

The discrepancy between post-layout and schematic simulation results continues to widen in analog design due in part to the domination of layout parasitics.

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