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Federated Learning has emerged as a dominant computational paradigm for distributed machine learning. Its unique data privacy properties allow us to collaboratively train models while offering participating clients certain…

Machine Learning · Computer Science 2022-05-04 Dimitris Stripelis , Marcin Abram , Jose Luis Ambite

We consider the problem of distributed corruption detection in networks. In this model, each vertex of a directed graph is either truthful or corrupt. Each vertex reports the type (truthful or corrupt) of each of its outneighbors. If it is…

Combinatorics · Mathematics 2020-03-13 Noga Alon , Elchanan Mossel , Robin Pemantle

Object detection through LiDAR-based point cloud has recently been important in autonomous driving. Although achieving high accuracy on public benchmarks, the state-of-the-art detectors may still go wrong and cause a heavy loss due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Shuangzhi Li , Zhijie Wang , Felix Juefei-Xu , Qing Guo , Xingyu Li , Lei Ma

In this paper we apply techniques of complex network analysis to data sources representing public funding programs and discuss the importance of the considered indicators for program evaluation. Starting from the Open Data repository of the…

Physics and Society · Physics 2015-07-24 Stefano Nicotri , Eufemia Tinelli , Nicola Amoroso , Elena Garuccio , Roberto Bellotti

Throughout economic history, the global economy has experienced recurring crises. The persistent recurrence of such economic crises calls for an understanding of their generic features rather than treating them as singular events. The…

Statistical Finance · Quantitative Finance 2011-04-14 Kyu-Min Lee , Jae-Suk Yang , Gunn Kim , Jaesung Lee , Kwang-Il Goh , In-mook Kim

Counterparty risk denotes the risk that a party defaults in a bilateral contract. This risk not only depends on the two parties involved, but also on the risk from various other contracts each of these parties holds. In rather informal…

Risk Management · Quantitative Finance 2015-09-16 Vahan Nanumyan , Antonios Garas , Frank Schweitzer

In the wake of the 2008 financial crisis the role of strongly interconnected markets in fostering systemic instability has been increasingly acknowledged. Trade networks of commodities are susceptible to deleterious cascades of supply…

Economics · Quantitative Finance 2015-04-15 Peter Klimek , Michael Obersteiner , Stefan Thurner

We study robust mean estimation in an online and distributed scenario in the presence of adversarial data attacks. At each time step, each agent in a network receives a potentially corrupted data point, where the data points were originally…

Cryptography and Security · Computer Science 2022-09-21 Tong Yao , Shreyas Sundaram

The European Union and Eurozone present an inquisitive case of strongly interconnected network with high degree of dependence among nodes. This research focused on investment network of European Union and its major trading partners for…

General Finance · Quantitative Finance 2018-01-01 Muhammad Mohsin Hakeem , Ken-ichi Suzuki

Cybercrime is continuously growing in numbers and becoming more sophisticated. Currently, there are various monetisation and money laundering methods, creating a huge, underground economy worldwide. A clear indicator of these activities is…

Cryptography and Security · Computer Science 2021-05-26 Nikolaos Lykousas , Vasilios Koutsokostas , Fran Casino , Constantinos Patsakis

The Agenda 2030 recognises corruption as a major obstacle to sustainable development and integrates its reduction among SDG targets, in view of developing peaceful, just and strong institutions. In this paper, we propose a method to assess…

Applications · Statistics 2023-09-06 Michela Gnaldi , Simone Del Sarto

Robust learning methods aim to learn a clean target distribution from noisy and corrupted training data where a specific corruption pattern is often assumed a priori. Our proposed method can not only successfully learn the clean target…

Machine Learning · Computer Science 2023-02-08 Jeongeun Park , Seungyoun Shin , Sangheum Hwang , Sungjoon Choi

We apply network science principles to analyze the coalitions formed by European Union (EU) nations and institutions during litigation proceedings at the European Court of Justice. By constructing Friends and Foes networks, we explore their…

Physics and Society · Physics 2023-06-06 R. Mastrandrea , G. Antuofermo , M. Ovadek , T. Y. -C. Yeung , A. Dyevre , G. Caldarelli

Recent research has shown that criminal networks have complex organizational structures, but whether this can be used to predict static and dynamic properties of criminal networks remains little explored. Here, by combining graph…

Corruption is an endemic societal problem with profound implications in the development of nations. In combating this issue, cross-national evidence supporting the effectiveness of the rule of law seems at odds with poorly realized outcomes…

General Economics · Economics 2019-02-04 Omar A. Guerrero , Gonzalo Castañeda

Neural networks have demonstrated significant accuracy across various domains, yet their vulnerability to subtle input alterations remains a persistent challenge. Conventional methods like data augmentation, while effective to some extent,…

Machine Learning · Computer Science 2023-11-20 Shashank Kotyan , Danilo Vasconcellos Vargas

A novel network-based approach is introduced to analyze banking systems, focusing on two main themes: identifying influential nodes within global banking networks using Bank for International Settlements data and developing an algorithm to…

Social and Information Networks · Computer Science 2025-03-12 Anthony Bonato , Juan Chavez Palan , Adam Szava

This study explores the dynamic relationship between corruption and economic growth through an approach based on a system of stochastic equations. In the context of globalization and economic interdependencies, corruption not only affects…

Studying acquisitions offers invaluable insights into startup trends, aiding informed investment decisions for businesses. However, the scarcity of studies in this domain prompts our focus on shedding light in this area. Employing…

Social and Information Networks · Computer Science 2024-10-31 Ghazal Kalhor , Behnam Bahrak

Data mining revealed a cluster of economic, psychological, social and cultural indicators that in combination predicted corruption and wealth of European nations. This prosperity syndrome of self-reliant citizens, efficient division of…

General Finance · Quantitative Finance 2016-04-04 Juan C. Correa , Klaus Jaffe