119 citations · 313 across the 53 of their papers we have counts for
59 papers
Simulation-Driven Vehicular Traffic Data Augmentation: Extending Sensor Coverage Through Virtual Sensing
Davide Andrea Guastella, Eladio Montero Porras, Evangelos Pournaras +1
Urban traffic management relies on sensor networks whose spatial coverage is limited by deployment costs and privacy regulations. Machine learning models trained on such sparse dat…
Argonaut: Interactive Visual Exploration for Distributed Optimization
Srijoni Majumdar, Chuhao Qin, Evangelos Pournaras
Distributed discrete-choice optimization in decentralized settings is often hard to explore and navigate: disentangling what other agents choose, how their choices are interdepende…
Decentralized Multi-agent Reinforcement Learning for Resilient Critical Infrastructures
Minghui Ding, Evangelos Pournaras
Critical infrastructures are increasingly distributed, interdependent, and exposed to evolving disruptions, making resilience a central requirement for their operation and control.…
Resilient Liquid Democracy: Mitigating Voting Power Imbalances via Secure Delegation Networks
Zhuolun Li, Evangelos Pournaras
Liquid democracy lets voters either vote directly or delegate their voting power to another trusted participant. It is often deployed in political parties, municipal participation…
The Optimization Trilemma: Efficiency, Comfort and Fairness in Decentralized Multi-agent Coordination
Jovan Nikolic, Maciej Krzysztof Zuziak, Evangelos Pournaras
The problem of fair multi-agent coordination in decentralized settings is one of the most pressing challenges for building efficient collaborative systems. Resource allocation is b…
Democracy in the Era of Artificial Intelligence
Evangelos Pournaras, Srijoni Majumdar, Carina Hausladen +1
Interfacing Artificial Intelligence (AI) with democracy is one of the most profound challenges of our times. On the one hand, AI comes with opportunities to overcome long-standing…
AI-Mediated Explainable Regulation for Justice
Thomas Hofweber, Andreas Sudmann, Evangelos Pournaras
Present practice of deciding on regulation faces numerous problems that make adopted regulations static, unexplained, unduly influenced by powerful interest groups, and stained wit…
Privacy-Aware Smart Cameras: View Coverage via Socially Responsible Coordination
Chuhao Qin, Lukas Esterle, Evangelos Pournaras
Coordination of view coverage via privacy-aware smart cameras is key to a more socially responsible urban intelligence. Rather than maximizing view coverage at any cost or over rel…
Modeling Edge-to-Cloud Offloading Workloads for Autonomous Vehicles
Longkun Li, Evangelos Pournaras
Autonomous vehicles often need to upload high volumes of diverse data within the edge-to-cloud continuum: telemetry, sensor data for offline training, and observations used to main…
Fair Voting Methods as a Catalyst for Democratic Resilience: A Trilogy on Legitimacy, Impact and AI Safeguarding
Evangelos Pournaras
This article shows how fair voting methods can be a catalyst for change in the way we make collective decisions, and how such change can promote long-awaited upgrades of democracy.…
Resilient Charging Infrastructure via Decentralized Coordination of Electric Vehicles at Scale
Chuhao Qin, Alexandru Sorici, Andrei Olaru +2
The rapid adoption of electric vehicles (EVs) introduces major challenges for decentralized charging control. Existing decentralized approaches efficiently coordinate a large numbe…
Are Voters Willing to Collectively Secure Elections? Unraveling a Practical Blockchain Voting System
Zhuolun Li, Haluk Sonmezler, Faiza Shirazi +5
Ensuring ballot secrecy is critical for fair and trustworthy electronic voting systems, yet achieving strong secrecy guarantees in decentralized, large-scale elections remains chal…
Cooperative Flexibility Exchange: Fair and Comfort-Aware Decentralized Resource Allocation
Rabiya Khalid, Evangelos Pournaras
The growing electricity demand and use of smart appliances are placing pressure on power grids, making efficient energy management more important than ever. The existing energy man…
Optimization without Future Compromises? Decentralized Coordination via Collective and Reinforcement Learning
Chuhao Qin, Evangelos Pournaras
Efficient resource allocation in multi-agent systems requires autonomous agents to coordinate their decisions while balancing system-wide objectives with individual costs. This bec…
Coordinated Multi-Drone Last-mile Delivery: Learning Strategies for Energy-aware and Timely Operations
Chuhao Qin, Arun Narayanan, Evangelos Pournaras
Drones have recently emerged as a faster, safer, and cost-efficient way for last-mile deliveries of parcels, particularly for urgent medical deliveries highlighted during the pande…
Blockchain and Edge Computing Nexus: A Large-scale Systematic Literature Review
Zeinab Nezami, Zhuolun Li, Chuhao Qin +3
Blockchain and edge computing are two instrumental paradigms of decentralized computation, driving key advancements in Smart Cities applications such as supply chain, energy and mo…
Collective Intelligence Outperforms Individual Talent: A Case Study in League of Legends
Angelo Josey Caldeira, Sajan Maharjan, Srijoni Majumdar +1
Gaming environments are popular testbeds for studying human interactions and behaviors in complex artificial intelligence systems. Particularly, in multiplayer online battle arena…
Upgrading Democracies with Fairer Voting Methods
Evangelos Pournaras, Srijoni Majumdar, Thomas Wellings +4
Voting methods are instrumental design elements of democracies. Citizens use them to express and aggregate their preferences to reach a collective decision. However, voting outcome…
Optimization under Attack: Resilience, Vulnerability, and the Path to Collapse
Amal Aldawsari, Evangelos Pournaras
Optimization is instrumental for improving operations of large-scale socio-technical infrastructures of Smart Cities, for instance, energy and traffic systems. In particular, under…
SoK: Consensus for Fair Message Ordering
Zhuolun Li, Evangelos Pournaras
Distributed ledgers rely on consensus protocols to commit messages in an agreed order. In practice, this order is often chosen for profit, which raises fairness concerns. For examp…
DAOs of Collective Intelligence? Unraveling the Complexity of Blockchain Governance in Decentralized Autonomous Organizations
Mark C. Ballandies, Dino Carpentras, Evangelos Pournaras
Decentralized autonomous organizations (DAOs) have transformed organizational structures by shifting from traditional hierarchical control to decentralized approaches, leveraging b…
Generative AI voting: fair collective choice is resilient to LLM biases and inconsistencies
Srijoni Majumdar, Edith Elkind, Evangelos Pournaras
Recent breakthroughs in generative artificial intelligence (AI) and large language models (LLMs) unravel new capabilities for AI personal assistants to overcome cognitive bandwidth…
M-SET: Multi-Drone Swarm Intelligence Experimentation with Collision Avoidance Realism
Chuhao Qin, Alexander Robins, Callum Lillywhite-Roake +5
Distributed sensing by cooperative drone swarms is crucial for several Smart City applications, such as traffic monitoring and disaster response. Using an indoor lab with inexpensi…
When Computing follows Vehicles: Decentralized Mobility-Aware Resource Allocation for Edge-to-Cloud Continuum
Zeinab Nezami, Emmanouil Chaniotakis, Evangelos Pournaras
The transformation of smart mobility is unprecedented--Autonomous, shared and electric connected vehicles, along with the urgent need to meet ambitious net-zero targets by shifting…