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pro vyhledávání: '"Belyi, Alexander"'
We consider a variant of the clustering problem for a complete weighted graph. The aim is to partition the nodes into clusters maximizing the sum of the edge weights within the clusters. This problem is known as the clique partitioning problem, being
Externí odkaz:
http://arxiv.org/abs/2110.05627
Autor:
Belyi, Alexander1,2,3 (AUTHOR) bely@math.muni.cz, Sobolevsky, Stanislav1,4,5 (AUTHOR), Kurbatski, Alexander3 (AUTHOR), Ratti, Carlo6 (AUTHOR)
Publikováno v:
Mathematical Methods of Operations Research. Oct2023, Vol. 98 Issue 2, p269-297. 29p.
Community detection is one of the pivotal tools for discovering the structure of complex networks. Majority of community detection methods rely on optimization of certain quality functions characterizing the proposed community structure. Perhaps, the
Externí odkaz:
http://arxiv.org/abs/1712.05110
People's behavior on online social networks, which store geo-tagged information showing where people were or are at the moment, can provide information about their offline life as well. In this paper we present one possible research direction that ca
Externí odkaz:
http://arxiv.org/abs/1606.08132
Autor:
Belyi, Alexander, Bojic, Iva, Sobolevsky, Stanislav, Sitko, Izabela, Hawelka, Bartosz, Rudikova, Lada, Kurbatski, Alexander, Ratti, Carlo
Recent availability of geo-localized data capturing individual human activity together with the statistical data on international migration opened up unprecedented opportunities for a study on global mobility. In this paper we consider it from the pe
Externí odkaz:
http://arxiv.org/abs/1601.05532
Autor:
Bojic, Iva, Nizetic-Kosovic, Ivana, Belyi, Alexander, Podobnik, Vedran, Sobolevsky, Stanislav, Ratti, Carlo
The number of people who decide to share their photographs publicly increases every day, consequently making available new almost real-time insights of human behavior while traveling. Rather than having this statistic once a month or yearly, urban pl
Externí odkaz:
http://arxiv.org/abs/1601.02306
Ever since first mobile phones equipped with GPS came to the market, knowing the exact user location has become a holy grail of almost every service that lives in the digital world. Starting with the idea of location based services, nowadays it is no
Externí odkaz:
http://arxiv.org/abs/1510.03715
Publikováno v:
In Tourism Management February 2021 82
Autor:
Sobolevsky, Stanislav, Bojic, Iva, Belyi, Alexander, Sitko, Izabela, Hawelka, Bartosz, Arias, Juan Murillo, Ratti, Carlo
Scientific studies investigating laws and regularities of human behavior are nowadays increasingly relying on the wealth of widely available digital information produced by human social activity. In this paper we leverage big data created by three di
Externí odkaz:
http://arxiv.org/abs/1504.06003
Publikováno v:
Phys. Rev. E 90, 012811 (2014)
Recent years have witnessed the development of a large body of algorithms for community detection in complex networks. Most of them are based upon the optimization of objective functions, among which modularity is the most common, though a number of
Externí odkaz:
http://arxiv.org/abs/1308.3508