no code implementations • 1 Apr 2025 • Anna Maddux, Marko Maljkovic, Nikolas Geroliminis, Maryam Kamgarpour
Instead, we treat the lower-level game as a black box, assuming only that the followers' interactions approximate a Nash equilibrium while the leader observes the realized cost of the resulting approximation.
no code implementations • 27 Mar 2025 • Marko Maljkovic, Nikolas Geroliminis
Efficient traffic monitoring is crucial for managing urban transportation networks, especially under congested and dynamically changing traffic conditions.
no code implementations • 7 Jan 2025 • Weijiang Xiong, Robert Fonod, Alexandre Alahi, Nikolas Geroliminis
Traffic forecasting is a fundamental task in transportation research, however the scope of current research has mainly focused on a single data modality of loop detectors.
3 code implementations • 4 Nov 2024 • Robert Fonod, Haechan Cho, Hwasoo Yeo, Nikolas Geroliminis
This paper presents a framework for extracting georeferenced vehicle trajectories from high-altitude drone footage, addressing key challenges in urban traffic monitoring and limitations of traditional ground-based systems.
Ranked #1 on
Object Detection
on Songdo Vision
(using extra training data)
no code implementations • 24 Aug 2024 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
Leveraging the concept of receding-horizon games, we propose a method to optimize proactive dispatching of vehicles for recharging over a predefined time horizon.
no code implementations • 13 Jun 2024 • Pengbo Zhu, Giancarlo Ferrari-Trecate, Nikolas Geroliminis
Balancing passenger demand and vehicle availability is crucial for ensuring the sustainability and effectiveness of urban transportation systems.
no code implementations • 23 May 2024 • Zhixiong Jin, Dimitrios Tsitsokas, Nikolas Geroliminis, Ludovic Leclercq
In large-scale traffic optimization, models based on Macroscopic Fundamental Diagram (MFD) are recognized for their efficiency in broad analyses.
no code implementations • 25 Mar 2024 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
When a centrally operated ride-hailing company considers to enter a market already served by another company, it has to make a strategic decision about how to distribute its fleet among different regions in the area.
no code implementations • 20 Mar 2024 • Lynn Fayed, Gustav Nilsson, Nikolas Geroliminis
In this work, we analyze a network configuration where part of the urban transportation network is devoted to dedicated bus lanes.
no code implementations • 22 Feb 2024 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
Motivated by the omnipresence of hierarchical structures in many real-world applications, this study delves into the intricate realm of bi-level games, with a specific focus on exploring local Stackelberg equilibria as a solution concept.
no code implementations • 20 Nov 2023 • Pengbo Zhu, Isik Ilber Sirmatel, Giancarlo Ferrari-Trecate, Nikolas Geroliminis
As an emerging mode of urban transportation, Autonomous Mobility-on-Demand (AMoD) systems show the potential in improving mobility in cities through timely and door-to-door services.
no code implementations • 2 Oct 2023 • Lynn Fayed, Gustav Nilsson, Nikolas Geroliminis
First, we develop a modal- and space-dependent aggregate model for private vehicles, ride-pooling, and buses, and we use this model to test different control strategies.
no code implementations • 25 Aug 2023 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
In this work, we assume that a central authority wants to control the distribution of the vehicles and can do so by selecting charging prices.
no code implementations • 23 Apr 2023 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
This paper analyzes a class of Stackelberg games where different actors compete for shared resources and a central authority tries to balance the demand through a pricing mechanism.
no code implementations • 19 Oct 2022 • Dimitrios Tsitsokas, Anastasios Kouvelas, Nikolas Geroliminis
However, its effectiveness under saturated conditions is questionable, while network-wide application is limited due to high instrumentation cost.
no code implementations • 16 Oct 2022 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
We provide a pricing mechanism that ensures the existence of a unique Nash equilibrium of the upper-level game that minimizes the external agent's objective at the same time.
no code implementations • 17 Mar 2022 • Marko Maljkovic, Gustav Nilsson, Nikolas Geroliminis
Both ride-hailing services and electric vehicles are becoming increasingly popular and it is likely that charging management of the ride-hailing vehicles will be a significant part of the ride-hailing company's operation in the near future.
2 code implementations • 27 Apr 2021 • Semin Kwak, Nikolas Geroliminis, Pascal Frossard
Multivariate time series forecasting poses challenges as the variables are intertwined in time and space, like in the case of traffic signals.
Ranked #7 on
Traffic Prediction
on PEMS-BAY
(RMSE metric)
no code implementations • 2 Sep 2020 • Semin Kwak, Nikolas Geroliminis
We compare our prediction accuracy of travel time for freeways in California (I210-E and I5-S) under highly congested traffic conditions with those of other methods: the instantaneous travel time, k-nearest neighbor, support vector regression, and artificial neural network.