no code implementations • 6 Mar 2024 • Chaeeun Han, Jose Paolo Talusan, Dan Freudberg, Ayan Mukhopadhyay, Abhishek Dubey, Aron Laszka
Public transportation systems often suffer from unexpected fluctuations in demand and disruptions, such as mechanical failures and medical emergencies.
1 code implementation • 6 Jan 2024 • Ava Pettet, Yunuo Zhang, Baiting Luo, Kyle Wray, Hendrik Baier, Aron Laszka, Abhishek Dubey, Ayan Mukhopadhyay
In this paper, we introduce \textit{Policy-Augmented Monte Carlo tree search} (PA-MCTS), which combines action-value estimates from an out-of-date policy with an online search using an up-to-date model of the environment.
1 code implementation • 3 Jan 2024 • Baiting Luo, Yunuo Zhang, Abhishek Dubey, Ayan Mukhopadhyay
However, existing approaches for decision-making in NSMDPs have two major shortcomings: first, they assume that the updated environmental dynamics at the current time are known (although future dynamics can change); and second, planning is largely pessimistic, i. e., the agent acts ``safely'' to account for the non-stationary evolution of the environment.
no code implementations • 30 Dec 2023 • Opadele Kehinde, Ruth Abdul, Bose Afolabi, Parminder Vir, Corinne Namblard, Ayan Mukhopadhyay, Abiodun Adereni
In particular, low vaccination uptake in Nigeria is a major driver of more than 2, 000 daily deaths of children under the age of five years.
no code implementations • 24 Oct 2023 • Afiya Ayman, Ayan Mukhopadhyay, Aron Laszka
We identify inherent task features and STL characteristics that can help us to predict whether a group of tasks should be learned together using MTL or if they should be learned independently using STL.
no code implementations • 15 Jun 2023 • Ayan Mukhopadhyay
Emergency response management (ERM) is a challenge faced by communities across the globe.
no code implementations • 22 Feb 2023 • Yiqi Zhao, Ziyan An, Xuqing Gao, Ayan Mukhopadhyay, Meiyi Ma
Smart cities operate on computational predictive frameworks that collect, aggregate, and utilize data from large-scale sensor networks.
no code implementations • 20 Feb 2023 • Baiting Luo, Shreyas Ramakrishna, Ava Pettet, Christopher Kuhn, Gabor Karsai, Ayan Mukhopadhyay
To address these limitations, we propose a dynamic simplex strategy with an online controller switching logic that allows two-way switching.
no code implementations • 10 Oct 2022 • Jose Paolo Talusan, Ayan Mukhopadhyay, Dan Freudberg, Abhishek Dubey
The ability to accurately predict public transit ridership demand benefits passengers and transit agencies.
no code implementations • 28 Jun 2022 • Zhuangwei Kang, Ayan Mukhopadhyay, Aniruddha Gokhale, Shijie Wen, Abhishek Dubey
To this end, we propose a principled and comprehensive framework consisting of a data-driven generative approach that can perform tractable density estimation for detecting traffic anomalies.
no code implementations • 28 Apr 2022 • Vineet Nair, Kritika Prakash, Michael Wilbur, Aparna Taneja, Corinne Namblard, Oyindamola Adeyemo, Abhishek Dubey, Abiodun Adereni, Milind Tambe, Ayan Mukhopadhyay
More than 5 million children under five years die from largely preventable or treatable medical conditions every year, with an overwhelmingly large proportion of deaths occurring in under-developed countries with low vaccination uptake.
1 code implementation • 25 Apr 2022 • Amutheezan Sivagnanam, Salah Uddin Kadir, Ayan Mukhopadhyay, Philip Pugliese, Abhishek Dubey, Samitha Samaranayake, Aron Laszka
Vehicle routing problems (VRPs) can be divided into two major categories: offline VRPs, which consider a given set of trip requests to be served, and online VRPs, which consider requests as they arrive in real-time.
no code implementations • 28 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.
no code implementations • 25 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.
no code implementations • 23 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.
no code implementations • 3 Dec 2021 • Yasas Senarath, Ayan Mukhopadhyay, Sayyed Mohsen Vazirizade, Hemant Purohit, Saideep Nannapaneni, Abhishek Dubey
First, we show how crowdsourced reports, ground-truth historical data, and other relevant determinants such as traffic and weather can be used together in a Convolutional Neural Network (CNN) architecture for early detection of emergency incidents.
2 code implementations • 15 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.
no code implementations • 31 Dec 2020 • Toshali Mitra, Ayan Mukhopadhyay, Alexander Soloviev
Extending the quantum effective approach of Son and Nicolis and incorporating dissipation, we develop a MIS formalism for describing a superfluid out of equilibrium by including the Goldstone boson and the condensate together with the hydrodynamic modes as the effective degrees of freedom.
High Energy Physics - Phenomenology Quantum Gases High Energy Physics - Theory
no code implementations • 31 Dec 2020 • Benoît Douçot, Ayan Mukhopadhyay, Giuseppe Policastro, Sutapa Samanta
We construct a semiholographic effective theory in which the electron of a two-dimensional band hybridizes with a fermionic operator of a critical holographic sector, while also interacting with other bands that preserve quasiparticle characteristics.
High Energy Physics - Theory Strongly Correlated Electrons
no code implementations • 24 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.
no code implementations • 15 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.
no code implementations • 15 Oct 2020 • Tina Diao, Samriddhi Singla, Ayan Mukhopadhyay, Ahmed Eldawy, Ross Shachter, Mykel Kochenderfer
A major problem in using data-driven models to combat wildfires is the lack of comprehensive data sources that relate fires with relevant covariates.
no code implementations • 7 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.
no code implementations • 21 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.
no code implementations • 21 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.