Search Results for author: Geoffrey Pettet

Found 9 papers, 1 papers with code

An Online Approach to Solve the Dynamic Vehicle Routing Problem with Stochastic Trip Requests for Paratransit Services

no code implementations28 Mar 2022 Michael Wilbur, Salah Uddin Kadir, Youngseo Kim, Geoffrey Pettet, Ayan Mukhopadhyay, Philip Pugliese, Samitha Samaranayake, Aron Laszka, Abhishek Dubey

Accounting for stochastic requests while optimizing a non-myopic utility function is computationally challenging; indeed, the action space for such a problem is intractably large in practice.

Decision Making

Decision Making in Non-Stationary Environments with Policy-Augmented Monte Carlo Tree Search

no code implementations25 Feb 2022 Geoffrey Pettet, Ayan Mukhopadhyay, Abhishek Dubey

We find that PC-MCTS can achieve higher cumulative rewards than the policy in isolation under several environmental shifts while converging in significantly fewer iterations than pure MCTS.

Decision Making Decision Making Under Uncertainty +1

Designing Decision Support Systems for Emergency Response: Challenges and Opportunities

no code implementations23 Feb 2022 Geoffrey Pettet, Hunter Baxter, Sayyed Mohsen Vazirizade, Hemant Purohit, Meiyi Ma, Ayan Mukhopadhyay, Abhishek Dubey

Designing effective emergency response management (ERM) systems to respond to incidents such as road accidents is a major problem faced by communities.

Management

Learning Incident Prediction Models Over Large Geographical Areas for Emergency Response Systems

2 code implementations15 Jun 2021 Sayyed Mohsen Vazirizade, Ayan Mukhopadhyay, Geoffrey Pettet, Said El Said, Hiba Baroud, Abhishek Dubey

These statistical models are then used for proactive stationing which allocates first responders across the spatial area in order to reduce overall response time.

Decision Making Management

Hierarchical Planning for Resource Allocation in Emergency Response Systems

no code implementations24 Dec 2020 Geoffrey Pettet, Ayan Mukhopadhyay, Mykel Kochenderfer, Abhishek Dubey

We use the emergency response as a case study and show how a large resource allocation problem can be split into smaller problems.

Designing Emergency Response Pipelines : Lessons and Challenges

no code implementations15 Oct 2020 Ayan Mukhopadhyay, Geoffrey Pettet, Mykel Kochenderfer, Abhishek Dubey

Emergency response to incidents such as accidents, crimes, and fires is a major problem faced by communities.

Management

A Review of Incident Prediction, Resource Allocation, and Dispatch Models for Emergency Management

no code implementations7 Jun 2020 Ayan Mukhopadhyay, Geoffrey Pettet, Sayyed Vazirizade, Di Lu, Said El Said, Alex Jaimes, Hiba Baroud, Yevgeniy Vorobeychik, Mykel Kochenderfer, Abhishek Dubey

In the last fifty years, researchers have developed statistical, data-driven, analytical, and algorithmic approaches for designing and improving emergency response management (ERM) systems.

Decision Making Decision Making Under Uncertainty +1

On Algorithmic Decision Procedures in Emergency Response Systems in Smart and Connected Communities

no code implementations21 Jan 2020 Geoffrey Pettet, Ayan Mukhopadhyay, Mykel Kochenderfer, Yevgeniy Vorobeychik, Abhishek Dubey

This is not a trivial planning problem --- a major challenge with dynamically balancing the spatial distribution of responders is the complexity of the problem.

Decision Making Decision Making Under Uncertainty +1

An Online Decision-Theoretic Pipeline for Responder Dispatch

no code implementations21 Feb 2019 Ayan Mukhopadhyay, Geoffrey Pettet, Chinmaya Samal, Abhishek Dubey, Yevgeniy Vorobeychik

We highlight why such an approach is crucial to the effectiveness of emergency response, and present an algorithmic framework that can compute promising actions for a given decision-theoretic model for responder dispatch.

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