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Communication activ...
Communication activity in social networks : growth and correlations
- Artikel/kapitelEngelska2011
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2011-10-26
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Springer Science and Business Media LLC,2011
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LIBRIS-ID:oai:DiVA.org:su-70884
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-70884URI
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https://doi.org/10.1140/epjb/e2011-20172-4DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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authorCount :5
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We investigate the timing of messages sent in two online communities with respect to growth fluctuations and long-term correlations. We find that the timing of sending and receiving messages comprises pronounced long-term persistence. Considering the activity of the community members as growing entities, i.e. the cumulative number of messages sent (or received) by the individuals, we identify non-trivial scaling in the growth fluctuations which we relate to the long-term correlations. We find a connection between the scaling exponents of the growth and the long-term correlations which is supported by numerical simulations based on peaks over threshold. In addition, we find that the activity on directed links between pairs of members exhibits long-term correlations, indicating that communication activity with the most liked partners may be responsible for the long-term persistence in the timing of messages. Finally, we show that the number of messages, M, and the number of communication partners, K, of the individual members are correlated following a power-law, K similar to M (lambda) , with exponent lambda a parts per thousand 3 / 4.
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Biuppslag (personer, institutioner, konferenser, titlar ...)
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Buldyrev, S. V.
(författare)
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Havlin, S.
(författare)
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Liljeros, FredrikStockholms universitet,Sociologiska institutionen(Swepub:su)liljeros
(författare)
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Makse, H. A.
(författare)
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Stockholms universitetSociologiska institutionen
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:European Physical Journal B: Springer Science and Business Media LLC84:1, s. 147-1591434-60281434-6036
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