Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />

This paper describes the modeling of social networks subject to a recommendation. The Cold Start User-Item Model (CSUIM) of a bipartite graph is considered, which simulates bipartite graph growth based on several parameters. An algorithm is proposed to compute parameters of this model with desired p...

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Main Author: Robert Albert Kłopotek
Format: Article
Language:English
Published: MDPI AG 2020-02-01
Series:Computers
Subjects:
Online Access:https://www.mdpi.com/2073-431X/9/1/11
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author Robert Albert Kłopotek
author_facet Robert Albert Kłopotek
author_sort Robert Albert Kłopotek
collection DOAJ
description This paper describes the modeling of social networks subject to a recommendation. The Cold Start User-Item Model (CSUIM) of a bipartite graph is considered, which simulates bipartite graph growth based on several parameters. An algorithm is proposed to compute parameters of this model with desired properties. The primary desired property is that the generated graph has similar graph metrics. The next is a change in our graph growth process due to recommendations. The meaning of CSUI model parameters in the recommendation process is described. We make several simulations generating networks from the CSUI model to verify theoretical properties. Also, proposed methods are tested on real-life networks. We prove that the CSUIM model of bipartite graphs is very flexible and can be applied to many different problems. We also show that the parameters of this model can be easily obtained from an unknown bipartite graph.
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spelling doaj.art-1df577646dd44cc9928a695c554453342022-12-22T02:57:29ZengMDPI AGComputers2073-431X2020-02-01911110.3390/computers9010011computers9010011Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />Robert Albert Kłopotek0Faculty of Mathematics and Natural Sciences, School of Exact Sciences, Cardinal Stefan Wyszyński University in Warsaw, 01-938 Warszawa, PolandThis paper describes the modeling of social networks subject to a recommendation. The Cold Start User-Item Model (CSUIM) of a bipartite graph is considered, which simulates bipartite graph growth based on several parameters. An algorithm is proposed to compute parameters of this model with desired properties. The primary desired property is that the generated graph has similar graph metrics. The next is a change in our graph growth process due to recommendations. The meaning of CSUI model parameters in the recommendation process is described. We make several simulations generating networks from the CSUI model to verify theoretical properties. Also, proposed methods are tested on real-life networks. We prove that the CSUIM model of bipartite graphs is very flexible and can be applied to many different problems. We also show that the parameters of this model can be easily obtained from an unknown bipartite graph.https://www.mdpi.com/2073-431X/9/1/11social network analysisrecommendationnetwork graphsbipartite graphsbipartite graph modelgraph growth simulation
spellingShingle Robert Albert Kłopotek
Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
Computers
social network analysis
recommendation
network graphs
bipartite graphs
bipartite graph model
graph growth simulation
title Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
title_full Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
title_fullStr Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
title_full_unstemmed Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
title_short Modeling Bimodal Social Networks Subject to the Recommendation with the Cold Start User-Item Model<br />
title_sort modeling bimodal social networks subject to the recommendation with the cold start user item model br
topic social network analysis
recommendation
network graphs
bipartite graphs
bipartite graph model
graph growth simulation
url https://www.mdpi.com/2073-431X/9/1/11
work_keys_str_mv AT robertalbertkłopotek modelingbimodalsocialnetworkssubjecttotherecommendationwiththecoldstartuseritemmodelbr