Search Results for author: János Kertész

Found 7 papers, 4 papers with code

Quantifying firm-level economic systemic risk from nation-wide supply networks

no code implementations15 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.

Stability of Imbalanced Triangles in Gene Regulatory Networks of Cancerous and Normal Cells

no code implementations7 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.

Attention dynamics on the Chinese social media Sina Weibo during the COVID-19 pandemic

1 code implementation10 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

Sampling networks by nodal attributes

1 code implementation13 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

What does Big Data tell? Sampling the social network by communication channels

1 code implementation27 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

The most controversial topics in Wikipedia: A multilingual and geographical analysis

no code implementations23 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.

Edit wars in Wikipedia

1 code implementation19 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.

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