1 code implementation • 3 Aug 2024 • Márton Karsai, János Kertész, Lisette Espín-Noboa
Here, we compare the Relative Wealth Index (RWI) inferred by Chi et al. (2022) with the International Wealth Index (IWI) inferred by Lee and Braithwaite (2022) and Esp\'in-Noboa et al. (2023) across six Sub-Saharan African countries.
no code implementations • 3 May 2024 • Luigi Palmieri, Chiara Boldrini, Lorenzo Valerio, Andrea Passarella, Marco Conti, János Kertész
Through these configurations, we are able to show the non-trivial interplay between the properties of the network connecting nodes, the persistence of knowledge acquired collectively before disruption or lack thereof, and the effect of data availability pre- and post-disruption.
no code implementations • 9 Apr 2024 • Manran Zhu, János Kertész
Data deluge characteristic for our times has led to information overload, posing a significant challenge to effectively finding our way through the digital landscape.
1 code implementation • 23 Mar 2024 • Arash Badie-Modiri, Chiara Boldrini, Lorenzo Valerio, János Kertész, Márton Karsai
Fully decentralised federated learning enables collaborative training of individual machine learning models on distributed devices on a communication network while keeping the training data localised.
no code implementations • 7 Dec 2023 • Lorenzo Valerio, Chiara Boldrini, Andrea Passarella, János Kertész, Márton Karsai, Gerardo Iñiguez
Federated Learning (FL) is a well-known framework for successfully performing a learning task in an edge computing scenario where the devices involved have limited resources and incomplete data representation.
no code implementations • 22 Feb 2023 • Christian Diem, András Borsos, Tobias Reisch, János Kertész, Stefan Thurner
Using a nearly complete nationwide FPN, containing 243, 399 Hungarian firms with 1, 104, 141 supplier-buyer-relations we self-consistently compare production losses on the aggregated industry-level production network (IPN) and the granular FPN.
1 code implementation • 17 Feb 2023 • Lisette Espín-Noboa, János Kertész, Márton Karsai
Here, we propose a pipeline of machine learning models to infer the mean and standard deviation of wealth across multiple geographically clustered populated places, and illustrate their performance in Sierra Leone and Uganda.
no code implementations • 15 Apr 2021 • Christian Diem, András Borsos, Tobias Reisch, János Kertész, Stefan Thurner
While knowing the impact of individual companies on national economies is a prerequisite for efficient risk management, the quantitative assessment of the involved economic systemic risks (ESR) is hitherto practically non-existent, mainly because of a lack of fine-grained data in combination with coherent methods.
no code implementations • 7 Oct 2020 • Abbas Karimi Rizi, Mina Zamani, Amirhossein Shirazi, G. Reza Jafari, János Kertész
Here we focus on a particular of motifs in the GRN, the triangles, which are imbalanced if the number of negative interactions are odd.
1 code implementation • 10 Aug 2020 • Hao Cui, János Kertész
We study the real-time Hot Search List (HSL), which provides the ranking of the most popular 50 hashtags based on the amount of Sina Weibo searches.
Physics and Society Social and Information Networks
1 code implementation • 13 Feb 2019 • Yohsuke Murase, Hang-Hyun Jo, János Török, János Kertész, Kimmo Kaski
Assuming that the nodal attributes are independently drawn from an arbitrary distribution $\rho(h)$ and that the sampling probability $r(h_i , h_j)$ for a link $ij$ of nodal attributes $h_i$ and $h_j$ is also arbitrary, we are able to derive exact analytic expressions of the sampled network for such network characteristics as the degree distribution, degree correlation, and clustering spectrum.
Physics and Society Social and Information Networks
1 code implementation • 27 Nov 2015 • János Török, Yohsuke Murase, Hang-Hyun Jo, János Kertész, Kimmo Kaski
For example, while it is expected that the degree distribution of the whole social network has a maximum at a value larger than one, we get a monotonously decreasing distribution as observed in empirical studies of single channel data.
Physics and Society Social and Information Networks
no code implementations • 23 May 2013 • Taha Yasseri, Anselm Spoerri, Mark Graham, János Kertész
We present, visualize and analyse the similarities and differences between the controversial topics related to "edit wars" identified in 10 different language versions of Wikipedia.
1 code implementation • 19 Jul 2011 • Róbert Sumi, Taha Yasseri, András Rung, András Kornai, János Kertész
We present a new, efficient method for automatically detecting severe conflicts `edit wars' in Wikipedia and evaluate this method on six different language WPs.