Fredrik Liljeros (Phd)

Research Group

Summary of 2006 activities

· Group Members

Veronica Halvarsson

· “Part time” Members

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Publications

“Spontaneous group formation in the seceder model” (with Dittrich P, Soulier A, and Banzhaf W)

Physical Review Letters (2000) 84 (14) 3205-3208.

The Complexity of Social Organizing (Phd thesis defended 2001 05 11): Stockholm University, Department of Sociology

“The Web of Human Sexual Contacts” (with C. Edling, L.A.N. Amaral H. E. Stanley and Y. Åberg )

Nature (2001) 411 (21) June 908-909.(pdf)

“Sexual Networks implications for the transmission of sexually transmitted infections” (with C. Edling and L.A.N. Amaral )

Microbes and infection (2003) 5 June 189-196. (pdf)

“Sexual contacts and epidemic thresholds - Reply” (With C. Edling, L.A.N. Amaral H. E. Stanley and Y. Åberg )

Nature (2003) 423 (6940) 606-606 JUN 5 2003 (pdf)

“Spatial Diffusion of Social Organizing: Modelling Trade Union Growth in Sweden, 1890-1940” (with C. Edling)

Geography and Strategy (2003) vol. 20 267-192.

“Network bipartivity” (with Holme P., Edling P., and B. J. Kim) Physical Review E 2003:68 056107

cond-mat/0302296

“Structure and Time-Evolution of an Internet dating community” (with Holme P. and C. Edling) Social networks (2004) vol. 26 155-174. cond-mat/0210514

“Sexual networks in contemporary Western societies” PHYSICA A (2004) 338 (1-2): 238-245 JUL 1 2004

“Social simulations” SOCIOLOGISK FORSKNING (2): 19-22 2004

”Number of Sexual Encounters Involving Intercourse and the Transmission of Sexually Transmitted Infections” (with M. K. Nordvik) Sexually Transmitted Diseases, June 2006, Vol. 33, No. 6, p.342–349

“Spatial Bridges and the Spread of Chlamydia: The Case of a County in Sweden” (with M. K. Nordvik, A. Österlund and B. Herrman) Sexually Transmitted Diseases, Jan 2007,

“The effect of travel restrictions on the spread of a moderately contagious disease” (with M. Kamitz) BMC Medicine 2006, 4:32 (pdf) (popular description)

“Percolation theory and fragmentation measures in social networks” (with Y. Chen, G. Paul, R. Cohen, S. Havlin, S. P. Borgatti, and H. E. Stanley) Physica A Volume 378, Issue 1, 1 May 2007, Pages 11-19

“Percolation theory applied to measures of fragmentation in social networks” (with Y. Chen, G. Paul, R. Cohen, S. Havlin, S. P. Borgatti, and H. E. Stanley) 2007 Phys Rev E Phys 75(4 Pt 2): 046107. cond-mat/0610625

"Improving immunization strategies." (with Gallos, L. K. Argyrakis, P. Bunde, A. and Havlin, S) 2007 Phys Rev E 2007 75(4 Pt 2): 045104

“Preferential attachment in sexual networks.”(with de Blasio, B. F. Svensson, A.) 2007 Proc Natl Acad Sci U S A 104(26): 10762-7. (pdf)

“The contact network of inpatients in a regional healthcare system. A longitudinal case study” (With J. Giesecke and P. Holme) Mathematical Population Studies (forthcoming in 2007) q-bio.OT/0505020

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Conference Proceedings

“Social network visualisation as a contract tracing tool” (With M Boman, A Ghaffar and M Stenhem)

First International Workshop on Agent Technology for Disaster Management 2006: 131-133

“Attack Strategies on Complex Networks” (With L. K. Gallos, R. Cohen, P. Argyrakis, A. Bunde, S. Havlin)

International Conference on Computational Science (3) 2006: 1048-1055

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Working papers

“Distributions of number of sexual partnerships have power law decaying tails and finite variance”
(with C. Edling, H. E. Stanley, Y. Åberg and L.A.N. Amaral ) cond-mat/0305528

”Universal Mechanisms in the Growth of Voluntary Organizations” (with L.A.N. Amaral and H. E. Stanley) nlin.AO/0310001

“Social Contact Patterns and Disease dynamics” (With C. Edling) WP Nº 19/2004 – Documentos The Elcano Royal Institute

“Modelling sexually transmitted infections: the effect of partnership activity and number of partners on R₀” (With T. Britton and M. Nordvik) link

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Invited or refereed talks

Discussant. On the Varied Motivations for Agent Computing in the Social Sciences.

Workshop on Agent Simulation: Applications, Models, and Tools October 15-16, 1999. Chicago, USA.

Resilience and Growth of Voluntary Organizations: Short and Long Term Effects of the General Strike 1909 on Swedish Trade Unions.

The 2000 Abisko Workshop on "Systems Shocks – Systems Resilience". 22-26 May, 2000 Abisko Sweden.

The Web of Human Sexual Contacts International Conference on Dynamical Networks in Complex Systems

25-27 July, 2001. Kiel, Germany

The Web of Human Sexual Contacts. 22 August, 2001. Agora for Biosystems Sigtuna, Sweden.

Quantitative method, the general perspective. October, 30 2001

The National Council for Crime Prevention Stockholm

Sexual Contact Networks in Contemporary Western Societies, September 9 2003

Frontier Science 2003 Pavia, September 8-12 2003 (ppt)

How sexually connected are the Swedes?, November 28 2003

Annual General Meeting of the Swedish Society of Medicine 60th national medical convention (ppt)

Sexual Networks in Contemporary Western Societies and The Importance of Different Social Networks for Infectious Diseases November 8 2004

EpiNorth Advanced epidemiology of infectious diseases, Jurmala, Latvia

Structural properties of large empirical social networks and their likely effects on the transmission of disease. November 2 2004

Complex Adaptive Systems Group Seminar Series, Oxford University

Recent Progress in the Study of Large Empirical Contact Networks. May 8 2006

TAICON: The Trans-Atlantic Initiative on Complex Organizations and Networks, ETH Zurich

The dynamic structure of violent crime acts. June 15 2006

2006 Stockholm Criminology Symposium

Workshop on "Random Graphs and Complex Networks"

March 19-23, 2007 EURANDOM, Eindhoven, The Netherlands

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Research Impact

Study of sexual trysts shows it is a small world, by Roger Highfield, in The Daily Telegraph (June 21, 2001).

Six degrees of copulation, by Ian Sample in New Scientist (June 20, 2001).

Hub caps could squash STDs, by Philp Ball on Nature Science Update (August 20, 2001)

All the world’s a net, by David Cohen in New Scientist (13 April, 2002)

Internet dating analysed, by Helen Pearson on Nature Science Update (April 23, 2004)

Internet daters are more adventurous, by Heather Catchpole on ABC Science Online (April 28, 2004)

In Swedish:

Buksvågrar är vi allihopa, by Jon Hansson in Aftonbladet (September, 2001)

Alla känner alla, by Lotta Fredholm in Dagens Nyheter (December, 2001)

Snuvan styrs av slumpen, by Nisse Larsson in Dagens Nyheter (January, 2003)

Sexuella nätverk förklarar könssjukdomarnas existens, by Jörn Spolander in Dagens Medicin (November 2003)

Så många har du haft sex med – egentligen, by Caroline Hougner in Aftonbladet (December, 2003)

Otrogen? Då har du sex med hela världen, by Stig Larsén in Sydsvenskan (November 2003)

Fysiker studerar romantik på nätet, by Erik Leijonhufvud in Uppsala Nya Tidning (May 2004)

Klamydiasmittade kan hamna i personregister, by Johan Nilsson Dagens Medicin (NOV 2006)

Förbud mot resor hindrar smitta, by Johan Nilsson Dagens Medicin (NOV 2006)

In Norwegian:

Vil ha klamydia-register, by Joachim Henriksen in VG (Nov 2006)

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