Search Results for author: Gautam Biswas

Found 12 papers, 1 papers with code

A Chain-of-Thought Prompting Approach with LLMs for Evaluating Students' Formative Assessment Responses in Science

no code implementations21 Mar 2024 Clayton Cohn, Nicole Hutchins, Tuan Le, Gautam Biswas

This paper explores the use of large language models (LLMs) to score and explain short-answer assessments in K-12 science.

Active Learning Math

MARVEL: Multi-Agent Reinforcement-Learning for Large-Scale Variable Speed Limits

no code implementations18 Oct 2023 Yuhang Zhang, Marcos Quinones-Grueiro, Zhiyao Zhang, Yanbing Wang, William Barbour, Gautam Biswas, Daniel Work

Variable Speed Limit (VSL) control acts as a promising highway traffic management strategy with worldwide deployment, which can enhance traffic safety by dynamically adjusting speed limits according to real-time traffic conditions.

Decision Making Management +2

A Reinforcement Learning Approach for Robust Supervisory Control of UAVs Under Disturbances

no code implementations21 May 2023 Ibrahim Ahmed, Marcos Quinones-Grueiro, Gautam Biswas

In this work, we present an approach to supervisory reinforcement learning control for unmanned aerial vehicles (UAVs).

reinforcement-learning

Model-based adaptation for sample efficient transfer in reinforcement learning control of parameter-varying systems

no code implementations20 May 2023 Ibrahim Ahmed, Marcos Quinones-Grueiro, Gautam Biswas

Instead, we propose a model-based transformation, such that when actions from a control policy are applied to the target system, a positive transfer is achieved.

Model Predictive Control reinforcement-learning +2

Concurrent Policy Blending and System Identification for Generalized Assistive Control

1 code implementation19 May 2022 Luke Bhan, Marcos Quinones-Grueiro, Gautam Biswas

In this work, we address the problem of solving complex collaborative robotic tasks subject to multiple varying parameters.

Performance-Weighed Policy Sampling for Meta-Reinforcement Learning

no code implementations10 Dec 2020 Ibrahim Ahmed, Marcos Quinones-Grueiro, Gautam Biswas

The enhancement is applied when a new fault occurs, to re-initialize the parameters of a new RL policy that achieves faster adaption with a small number of samples of system behavior with the new fault.

Meta-Learning Meta Reinforcement Learning +2

Complementary Meta-Reinforcement Learning for Fault-Adaptive Control

no code implementations26 Sep 2020 Ibrahim Ahmed, Marcos Quinones-Grueiro, Gautam Biswas

This contrasts with MAML, where the controller derives intermediate policies anew, sampled from a distribution of similar systems, to initialize a new policy.

Meta-Learning Meta Reinforcement Learning +2

Fault-Tolerant Control of Degrading Systems with On-Policy Reinforcement Learning

no code implementations10 Aug 2020 Ibrahim Ahmed, Marcos Quiñones-Grueiro, Gautam Biswas

We propose a novel adaptive reinforcement learning control approach for fault tolerant control of degrading systems that is not preceded by a fault detection and diagnosis step.

Fault Detection reinforcement-learning +1

A Relearning Approach to Reinforcement Learning for Control of Smart Buildings

no code implementations4 Aug 2020 Avisek Naug, Marcos Quiñones-Grueiro, Gautam Biswas

We demonstrate this approach for a data-driven 'smart building environment' that we use as a test-bed for developing HVAC controllers for reducing energy consumption of large buildings on our university campus.

reinforcement-learning Reinforcement Learning (RL)

Using the Dempster-Shafer Scheme in a Diagnostic Expert System Shell

no code implementations27 Mar 2013 Gautam Biswas, Teywansh S. Anand

This paper discusses an expert system shell that integrates rule-based reasoning and the Dempster-Shafer evidence combination scheme.

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