Johan Bollen, Professor, Indiana University

Citation analysis at: http://scholar.google.com/citations?hl=en&user=jDmcdsUAAAAJ

Last updated Jan 2025

2025:
- Ismael T. Freire, Mette Løvschal, Johan Bollen, Federica Carugati, Melody N. Ndzenyuiy, Scott E. Page, Bhavani R. Rao, and Kristian Tylén (2024) How Do We Collaborate? In: The Nature and Dynamics of Collaboration, Ed. Paul F. M. J. Verschure, MIT Press, ISBN: 9780262548144
2024:

Marten Scheffer, John M Anderies, Tone Bjordam, Johan Bollen, Stephen R Carpenter, F Stuart Chapin III, Carl Folke, Francisco Gazitua, Milena Holmgren, Jorge Marcone, Steve Polasky, Elke Weber, Frances Westley (2024) A heart model of Earth Stewardship - Shaking up science for positive futures. Earth Stewardship. 2024;1:e12019 DOI: 10.1002/eas2.12019
Eeshan Hasan, Gunnar Epping, Johan Bollen, Lorenzo Lorenzo-Luaces, Jennifer Trueblood (2024) One shot intervention reduces online engagement with distorted content. OSF: 2024/4/29
Rutter LA, ten Thij M, Lorenzo-Luaces L, Valdez D, Bollen J (2024) Negative affect variability differs between anxiety and depression on social media. PLoS ONE 19(2): e0272107. doi: 10.1371/journal.pone.0272107

2023:

Claudi L. Bockting, Eva A. M. van Dis, Robert van Rooij, Willem Zuidema and Johan Bollen(2023) Living guidelines for generative AI. Nature 622, 693-696. doi: https://doi.org/10.1038/d41586-023-03266-1
Johan Bollen and Marijn ten Thij (2023) Estimating the effects of career awards on researcher impact. In Proceedings of the International Society of Scientometrics and Informetrics Conference 2023, July 2-5, Bloomington IN
Ege Otenen, Ozgur Can Seckin, Danny Valdez, and Johan Bollen (2023) Quantifying the Digital Phenotype of Loneliness on Twitter. In M. Goldwater, F. K. Anggoro, B. K. Hayes, & D. C. Ong (Eds.), Proceedings of the 45th Annual Conference of the Cognitive Science Society, 45:1709-1716.
Eva A. M. van Dis, Johan Bollen, Robert van Rooij, Willem Zuidema and Claudi L. Bockting (2023) ChatGPT: five priorities for research , Nature 614:224-226, March.
Alexander T J Barron, Marijn ten Thij and Johan Bollen (2023) Online identity as a collective labeling process Journal of Physics: Complexity, 4(2):025003, 10.1088/2632-072X/acc62c
Andy Edinger, Danny Valdez, Eric Walsh-Buhi, Jennifer S. Trueblood, Lorenzo Lorenzo-Luaces, Lauren A. Rutter and Johan Bollen (2023) Misinformation and Public Health Messaging in the Early Stages of the Mpox Outbreak: Mapping the Twitter Narrative with Deep Learning, Journal of Medical Internet Research, Journal of Medical Internet Research, PMID: 37163694, DOI: 10.2196/43841
Lauren A Rutter, J Howard, P. Lakhan, Danny Valdez, Johan Bollen, and Lorenzo Lorenzo-Luaces(2023). I haven’t been diagnosed, but I should be”: Insight into self-diagnoses of common mental health disorders JMIR Formative Research, 71, e39206

2022:

Calvin Isch, Marijn ten Thij, Peter M. Todd & Johan Bollen (2022) Quantifying changes in societal optimism from online sentiment Behavior Research Methods, March 2022, https://doi.org/10.3758/s13428-021-01785-1
Danny Valdez, Kristen N. Jozkowski, Katherine Haus, Marijn ten Thij, Brandon L. Crawford, María S. Montenegro, Wen‑Juo Lo, Ronna C. Turner, and Johan Bollen (2022) Assessing rigid modes of thinking in self-declared abortion ideology: natural language processing insights from an online pilot qualitative study on abortion attitudes, Pilot and Feasibility Studies 8(127), 8:127, DOI: 10.1186/s40814-022-01078-0
Krishna Bathina, Marijn ten Thij, and Johan Bollen (2022) Quantifying societal emotional resilience to natural disasters from geo-located social media content. PLOS ONE 17(6): e0269315, doi: 10.1371/journal.pone.0269315
Marten Scheffer, Ingrid van de Leemput, Els Weinans, and Johan Bollen (2022) Reply to Sun: Making sense of language change PNAS 119 (26) e2206616119, doi: 10.1073/pnas.2206616119.
Andy Edinger, Danny Valdez, Eric Walsh-Buhi, and Johan Bollen (2022) Deep learning for topical trend discovery in online discourse about Pre-Exposure Prophylaxis (PrEP), AIDS and Behavior, 10.1007/s10461-022-03779-2.
Lorenzo-Luaces L, Howard J, Edinger A, Yan HY, Rutter LA, Valdez D, Bollen J (2022) Sociodemographics and Transdiagnostic Mental Health Symptoms in SOCIAL (Studies of Online Cohorts for Internalizing Symptoms and Language) I and II: Cross-sectional Survey and Botometer Analysis JMIR Form Res 2022;6(10):e39324, doi: 10.2196/39324
Alexander T.J. Barron and Johan Bollen (2022) Quantifying collective identity online from self‑defining hashtags, Scientific Reports 12 (15044), doi: 10.1038/s41598-022-19181-w.
Johan Bollen, Marijn ten Thij, Lorenzo Lorenzo-Luaces & Lauren A. Rutter (2022) Book chapter: Beyond Risk: Individual Mental Health Trajectories from Large-Scale Social Media Data, In: Early Detection of Mental Health Disorders by Social Media Monitoring, Part of the Studies in Computational Intelligence book series (SCI,volume 1018), pp 265–287.

2021:

Marten Scheffer, Ingrid van de Leemput, Els Weinans, and Johan Bollen (2021) The rise and fall of rationality in language Proceedings of the National Academy of Sciences, 118 (51) e2107848118; DOI: 10.1073/pnas.2107848118
Johan Bollen, Marijn ten Thij, Fritz Breithaupt, Alexander T. J. Barron, Lauren A. Rutter, Lorenzo Lorenzo-Luaces, Marten Scheffer (2021) Reply to Schmidt et al. A robust surge of cognitive distortions in historical language.Proceedings of the National Academy of Sciences Nov 2021, 118 (45) e2115842118; DOI: 10.1073/pnas.2115842118
Johan Bollen, Marijn ten Thij, Fritz Breithaupt, Alexander T. J. Barron, Lauren A. Rutter, Lorenzo Lorenzo-Luaces, Marten Scheffer (2021) Historical language records reveal a surge of cognitive distortions in recent decades Proceedings of the National Academy of Sciences Jul 2021, 118 (30) e2102061118; DOI: 10.1073/pnas.2102061118
Krishna C. Bathina, Marijn ten Thij, Lorenzo Lorenzo-Luaces, Lauren A. Rutter, and Johan Bollen* (2021) Depressed individuals express more distorted thinking on social media Nature Human Behaviour (5):458–466: https://doi.org/10.1038/s41562-021-01050-7
Bathina KC, ten Thij M, Valdez D, Rutter LA, Bollen J (2021) Declining well-being during the COVID-19 pandemic reveals US social inequities. PLOS ONE 16(7): e0254114. https://doi.org/10.1371/journal.pone.0254114
Calvin Isc, hMarijn ten Thij, Peter Todd, and Johan Bollen (2021) Temporal measures of societal optimism reveal inversion of sentiment toward the near and distant future (preprint: https://psyarxiv.com/ftqbh/)

2020:

Valdez Danny, ten Thij Marijn, Bathina Krishna, Rutter Lauren A, Bollen Johan (2020) Social-media insights into US mental health amid the COVID-19 global pandemic: a longitudinal analysis of publicly available Twitter data. Journal of Medical Internet Research 22(12):e21418, DOI: 10.2196/21418
Marijn ten Thij, Krishna Bathina, Lauren A. Rutter, Lorenzo Lorenzo‑Luaces, Ingrid A. van de Leemput, Marten Scheffer & Johan Bollen (2020) Depression alters the circadian pattern of online activity Scientific Reports:10(17272), https://rdcu.be/b8vzU & doi.org/10.1038/s41598-020-74314-3
Rion Brattig Correia, Ian B. Wood, Johan Bollen, and Luis M Rocha (2020). Mining social media data for biomedical signals and health-related behavior Annual Review of Biomedical Data Science volume 3:1
Marijn ten Thij, Lauren Rutter, Lorenzo Lorenzo-Luaces and Johan Bollen (2020). Revealing the complex comorbidity structure of internalizing disorders through hypergraph models. Regular presentation, accepted at COMPLEX NETWORKS 2020, Madrid, Spain
Rutter, L. A., Bathina, K., ten Thij, M., Lorenzo-Luaces, L., and Bollen, J. (2020, November). Distorted thinking online: evidence for cognitive distortions in depressed twitter users. In Rutter, L.A. (Chair), Social media and mental health: Exploring cognitive and behavioral mechanisms using diverse methodologies. Symposium accepted at the 54rd Annual Convention of the Association of Behavioral and Cognitive Therapies, Philadelphia, PA.
Lorenzo-Luaces, L., ten Thij, M., Rutter, L. A., and Bollen, J. (2020, November). Online social media activity shows differences in the circadian rhythm of depressed vs. non-depressed Twitter users. Symposium accepted at the 54rd Annual Convention of the Association of Behavioral and Cognitive Therapies, Philadelphia, PA.

2019:

Rui Fan, Onur Varol, Ali Varamesh, Alexander Barron, Ingrid A. van de Leemput, Marten Scheffer & Johan Bollen (2019) The minute-scale dynamics of online emotions reveal the effects of affect labeling, Nature Human Behaviour, volume 3:92–100, doi: 10.1038/s41562-018-0490-5
Marijn ten Thij, Johan Bollen, and Luis M. Rocha (2020) Detecting eigenmoods in individual human emotions, COMPLEX NETWORKS 2019, Lisbon, Portugal (extended abstract)
Johan Bollen, Stephen R. Carpenter, Jane Lubchenco and Marten Scheffer (2019) Rethinking resource allocation in science , Ecology and Society, 24(3):29 (invited manuscript)

2018:

Johan Bollen (2018) Who would you share your funding with? Nature:560(143) August (https://www.nature.com/articles/d41586-018-05887-3, doi: 10.1038/d41586-018-05887-3)
Rui Fan, Ali Varamesh, Onur Varol, Alexander Barron, Ingrid van de Leemput, Marten Scheffer, and Johan Bollen (2018) Does putting your emotions into words make you feel better? Measuring the minute-scale dynamics of emotions from online data. arxiv.org/abs/1807.09725
Johan Bollen and Bruno Goncalves (2018) Network Happiness: How Online Social Interactions Relate to Our Well Being In Complex Spreading Phenomena in Social Systems -- Influence and Contagion in Real-World Social Networks. Eds: Sune Lehmann and Yong-Yeol Ahn. Springer ISBN 978-3-319-77332-2
Erick Elejalde, Leo Ferres, Eelco Herder, and Johan Bollen (2018) Quantifying the ecological diversity and health of online news. Journal of Computational Science:27:218-226
Jorge Bahamonde, Johan Bollen, Erick Elejalde, Leo Ferres, and Barbara Poblete (2018) Power structure in Chilean news media. PloS ONE:13(6), e0197150

2017:

Ian Wood, Pedro Varela, Johan Bollen, Luis Rocha, and Joana Gonçalves-Sá (2017) Human Sexual Cycles are Driven by Culture and Match Collective Moods. Scientific Reports: 7(#17973)
F Radicchi, A Weissman, J Bollen (2017) Quantifying perceived impact of scientific publications. Journal of Informetrics 11(3):704-712, August
Johan Bollen*, Bruno Gonçalves, Ingrid van de Leemput and Guangchen Ruan (2017) The happiness paradox: your friends are happier than you , EPJ Data Science 6(4), DOI: 10.1140/epjds/s13688-017-0100-1

2016:

N Rodriguez, J Bollen, YY Ahn (2016) Collective dynamics of belief evolution under cognitive coherence and social conformity. PLoS ONE 11(11)
X Liu, X Yu, Z Gao, T Xia, J Bollen (2016) Comparing Community-based Information Adoption and Diffusion Across Different Microblogging Sites. Proceedings of the 27th ACM Conference on Hypertext and Social Media:103-112
J Bollen, D Crandall, D Junk, Y Ding, K Börner (2016) An efficient system to fund science: from proposal review to peer-to-peer distributions. Scientometrics:1-8

2015:

H Mao, X Shuai, YY Ahn, J Bollen (2015) Quantifying socio-economic indicators in developing countries from mobile phone communication data: applications to Côte d’Ivoire. EPJ Data Science 4(1):15
H Mao, S Counts, J Bollen (2015) Quantifying the effects of online bullishness on international financial markets. ECB Statistics Paper Series 9(17)
GL Ciampaglia, P Shiralkar, LM Rocha, J Bollen, F Menczer, A Flammini (2015) Computational fact checking from knowledge networks. PloS one 10(6):e0128193
X Dong, J Bollen (2015) Computational models of consumer confidence from large-scale online attention data: crowd-sourcing econometrics. PloS one 10 (3), e0120039

2014:

J Bollen, D Crandall, D Junk, Y Ding, K Börner (2014) Response:“Why we still need grant peer review”. EMBO reports 15(5):467-467
J Bollen, D Crandall, D Junk, Y Ding, K Börner (2014) From funding agencies to scientific agency. EMBO reports 15(2):131-133
H Mao, P Gao, Wang Y, Bollen J (2014) Automatic construction of financial semantic orientation lexicon from large-scale Chinese news corpus. Institut Louis Bachelier, 20 (2):1-18

2013

Nathaniel Rodriguez, Johan Bollen and Yong-Yeol Ahn. Belief Polarization: Origins in Human Behavior and Social Structure. Oral Presentation at COVENANT 2013 workshop at ECCS2013, September, Barcelona, Spain.
Huina Mao, Xin Shuai, Yong-Yeol Ahn and Johan Bollen, Mobile Communications Reveal the Regional economy in Côte D’Ivoire. NetMob 2013, May 1-3, MIT (Cambridge, MA). http://perso.uclouvain.be/vincent.blondel/netmob/2013/NetMob2013-program-v1.pdf
Joseph DiGrazia, Karissa McKelvey, Johan Bollen, and Fabio Rojas, More Tweets, More Votes: Social Media as a Quantitative Indicator of Political Behavior. Subm. PLoS ONE, under review
Johan Bollen, David Crandall, Damion Junk, Ying Ding, and Katy Boerner, Collective allocation of science funding: from funding agencies to scientific agency, http://arxiv.org/abs/1304.1067
Xin Shuai, Zhuoren Jiang, Xiaozhong Liu and Johan Bollen, A Comparative Study of Academic impact and Wikipedia Ranking, Proceedings of the Joint Conference on Digital Libraries 2013, Indianapolis, IN.
He, B., Ding, Y., Tang, J., Reguramalingam, V., & Bollen, J. Mining diversity subgraph in multidisciplinary scientific collaboration networks: A meso perspective. Journal of Informetrics, Volume 7, Issue 1, January 2013, Pages 117–128

2012

Jasleen Kaur and Johan Bollen. Structural Patterns in Online Usage. In ACM Web Science Conference - Altmetrics 12 Workshop (presentation only), June 2012, Chicago, IL - http://altmetrics.org/altmetrics12/program/
Shuai X, Pepe A, Bollen J (2012) How the Scientific Community Reacts to Newly Submitted Preprints: Article Downloads, Twitter Mentions, and Citations. PLoS ONE 7(11): e47523. doi:10.1371/journal.pone.0047523
Daifeng Li, Ying Ding, Xin Shuai, Johan Bollen, Jie Tang, Shanshan Chen, Jiayi Zhu, and Guilherme Rocha. Adding Community and Dynamic to Topic Models. Journal of Informetrics, 6(2): 237-253, 2012
Xin Shuai, Xiaozhong Liu, and Johan Bollen. Improving News Ranking by Community Tweets. In WWW 2012 – MSND'12 Workshop, pp. 1227-1232. France, Lyon

2011

Huina Mao, Scott Counts and Johan Bollen. Computational Economic and Finance Gauges: Polls, Search, and Twitter. Meeting of the National Bureau of Economic Research - Behavioral Finance Meeting, Stanford, CA, November 5th, 2011
Johan Bollen and Huina Mao. Twitter Mood as a Stock Market Predictor. IEEE Computer, 44(10): 91-94, October 2011.
Johan Bollen, Bruno Gonçalves, Guangchen Ruan & Huina Mao. Happiness is assortative in online social networks. Artificial Life, Summer - 17(3), 237-251 (2011) (arxiv:1103.0784, doi:10.1162/artl_a_00034)
Johan Bollen, Alberto Pepe, and Huina Mao. Modeling public mood and emotion: Twitter sentiment and socio-economic phenomena. ICWSM11, Barcelona, Spain, July 2011 (arXiv: 0911.1583) - poster.
Johan Bollen, Huina Mao, and Xiao-Jun Zeng. Twitter mood predicts the stock market. Journal of Computational Science, 2(1), March 2011, Pages 1-8, doi:10.1016/j.jocs.2010.12.007, arxiv: abs/1010.3003. (featured on CNBC, CNN International and Bloomberg News!)

2010

Johan Bollen, Geoffrey Fox and Prashant Raj Singhal. How and where the TeraGrid supercomputing infrastructure benefits science. Journal of Informetrics, 5(1), pp. 114-121, 2010 (doi:10.1016/j.joi.2010.09.004)
Johan Bollen, Huina Mao, and Alberto Pepe. Determining the public mood state by analysis of microblogging posts. Proceedings of the Proc. of the Alife XII Conference, Odense, Denmark, MIT Press, August 2010. (Reviewer-selected for Plenary Presentation)
Johan Bollen. Book Chapter: Living Technology - Five Questions. Editors: Mark Bedau, Pelle Guldborg Hansen, Emily Parke and Steen Rasmussen, pp. 37-44, August 2010.
Johan Bollen. MESUR: A Survey of Usage-based Scholarly Impact Metrics. Against the grain, 22(4), 2010.
Huina Mao, Alberto Pepe, and Johan Bollen. Structure and evolution of mood contagion in the Twitter social network. Proceedings of the International Sunbelt Social Network Conference XXX, Riva del Garda, Italy, July 2010. (abstract)
Michael Kurtz and Johan Bollen. Usage bibliometrics. Annual Review of Information Science and Technology, Volume 44, 2010

2009

Johan Bollen, Herbert Van de Sompel, Aric Hagberg and Ryan Chute. A Principal Component Analysis of 39 Scientific Impact Measures. PLoS ONE, June 2009. URL: http://dx.plos.org/10.1371/journal.pone.0006022.
Bollen J, Van de Sompel H, Hagberg A, Bettencourt L, Chute R, et al. (2009) Clickstream Data Yields High-Resolution Maps of Science. PLoS ONE 4(3): e4803. doi:10.1371/journal.pone.0004803
Marko A. Rodriguez, Johan Bollen, and Herbert Van de Sompel. Automatic Metadata Generation using Associative Networks. Transactions on Information Systems, Volume 27, Issue 2, February 2009.

2008

Marko A. Rodriguez and Johan Bollen. "An Algorithm to Determine Peer-Reviewers", Conference on Information and Knowledge Management (CIKM), in press, Napa Valley, California, ACM, LA-UR-06-2261, October 2008.
Johan Bollen, Herbert Van de Sompel, Luda Balakireva and Ryan Chute. A ranking and exploration service based on large-scale usage data. JCDL 2008, Pittsburgh, PA, June 2008. (best poster award)
Johan Bollen, Herbert Van de Sompel and Marko A. Rodriguez. Towards usage-based impact metrics: first results from the MESUR project, JCDL 2008, Pittsburgh, PA, June 2008. (arXiv:0804.3791v1, best paper finalist)
Johan Bollen and Herbert Van de Sompel. MESUR: implications of usage-based evaluations of scholarly status for open repositories. Open Repositories, Southampton, UK, April, 2008.
Alberto Pepe and Johan Bollen. Between conjecture and memento: shaping a collective emotional perception of the future. AAAI 2008 Spring Symposium on Emotion, Personality and Social Behavior, Stanford, March 26-28, 2008.
Johan Bollen and Herbert Van de Sompel. Usage Impact Factor: the effects of sample characteristics on usage-based impact metrics. Journal of the American Society for Information Science and technology, 59(1), January 2008, pages 001-014 (cs.DL/0610154).

2007

Rodriguez, M.A., Watkins, J.H., Bollen, J., Gershenson, C., Using RDF to Model the Structure and Process of Systems, International Conference on Complex Systems, Boston, Massachusetts, LAUR-07-5720, October 2007.
Johan Bollen, Marko A. Rodriguez and Herbert Van de Sompel. MESUR: usage-based metrics of scholarly impact (poster). In Proceedings of the Joint Conference on Digital Libraries, Vancouver, June 2007
Johan Bollen, Marko Rodriguez, Herbert Van de Sompel, Lyudmilla Balakireva, and Aric Hagberg, The Largest Scholarly Semantic Network...Ever (poster). In Proceedings of the 16th International World Wide Web conference, May 2007. - Note: Best Poster Award!
Marko. A Rodrguez, Johan Bollen and Herbert Van de Sompel. A Practical Ontology for the Large-Scale Modeling of Scholarly Artifacts and their Usage, In Proceedings of the Joint Conference on Digital Libraries, Vancouver, June 2007
Robert P Dellavalle, Lisa M Schilling, Marko A Rodriguez, Herbert Van de Sompel, and Johan Bollen. Refining Dermatology Journal Impact Factors Using PageRank. Journal of the American Academy of Dermatology, Volume 30(3), pages 1059-1083, August 2007.
Steen Rasmussen, Diana Mangalagiu, Hans Ziock, Johan Bollen and Gordon Keating. Collective intelligence for decision support in very large stakeholder networks: The future US energy system. ALIFE 2007- IEEE Symposium on Artificial Life, April 2007.
Ann Heylighen, Francis Heylighen, Johan Bollen and Mathias Casaer. Distributed (design) knowledge exchange. Artificial Intelligence & Society - Special issue on Mediated Communication in Action: a Social Intelligence Design Approach, AI & Society 22(2), 145–154, doi: 10.1007/s00146-007-0122-5, 2007.
Marko. A. Rodriguez, J. Bollen, and Herbert Van de Sompel. Mapping the Bid Behavior of Conference Referees, Journal of Informetrics, 1(1), January 2007.
Marko A. Rodriguez, Daniel J. Steinbock, Jennifer H. Watkins, Carlos Gershenson, Johan Bollen, Victor Grey, and Brad deGraf. Smartocracy: Social networks for collective decision making. In Proceedings of the International Conference on Systems Science (HICSS), Hawaii, January 2007.

2006

Johan Bollen and Herbert Van de Sompel. An architecture for the aggregation and analysis of scholarly usage data. In Joint Conference on Digital Libraries (JCDL2006), pages 298–307, June 2006.
Johan Bollen and Herbert Van de Sompel. Mapping the structure of science through usage. Scientometrics, 69(2), 2006 (DOI: 10.1007/s11192-006-0151-8).
Johan Bollen, Michael L. Nelson, Gary Geisler, and Raquel Araujo. Usage derived recommendations for a video digital library. Journal of Network and Computer Applications, 30 (3), pp. 1059-1083, 2007. (doi:10.1016/j.jnca.2005.12.009).
Johan Bollen, Marko A. Rodriguez, and Herbert Van de Sompel. Journal status. Scientometrics, 69(3), December 2006 (arxiv.org:cs.DL/0601030, DOI: 10.1007/s11192-006-0176-z)
Frank McCown, Joan A. Smith, Michael L. Nelson, and Johan Bollen. Lazy preservation: Reconstructing websites by crawling the crawlers. In Eight ACM International Workshop on Web Information and Data Management (WIDM 2006), November 2006.
Marko A. Rodriguez, Johan Bollen, and Herbert Van de Sompel. An analysis of the bid behavior of the 2005 JCDL Program Committee (poster). In Joint Conference on Digital Libraries (JCDL2006), pages 352–352, June 2006.

2005

Johan Bollen, Herbert Van de Sompel, Joan Smith, and Rick Luce. Toward alternative metrics of journal impact: a comparison of download and citation data. Information Processing and Management, 41(6):1419–1440, 2005.
Johan Bollen, Michael L. Nelson, Gary Geisler, and Raquel Araujo. Video recommendations for the Open Video Project (poster). In Proceedings of Joint Conference on Digital Libraries (JCDL05), page 369, June 2005.
Johan Bollen, Michael L. Nelson, Giridhar Manepalli, Giridhar Nandigam, and Suchitra Manepalli. Trend analysis of the digital library community. D-Lib Magazine, 11(1), January 2005.
Sheffan Chan, Frank McCown, Michael L. Nelson, and Johan Bollen. The availability and persistence of web references in D-Lib Magazine. In 5th International Workshop on Web Archiving and Digital Preservation (in conjunction with ECDL2005), September 2005.
Xiaoming Liu, Johan Bollen, Michael L. Nelson, and Herbert Van de Sompel. Co-authorship networks in the digital library research community. Information Processing and Management, 41(6):1462–1480, December 2005.
Thomas Lutkenhouse, Michael L. Nelson, and Johan Bollen. Distributed, real-time computation of community preferences. In Proceedings of the Sixteenth ACM Conference on Hypertext and Hypermedia HT05, pages 88–97, September 2005.
Frank McCown, Johan Bollen, and Michael L. Nelson. Evaluation of the NSDL and Google for obtaining pedagogical resources. In Ninth European Conference on Research and Advanced Technology for Digital Libraries (ECDL2005), pages 344–355, September 2005.
Michael L. Nelson and Johan Bollen. If you harvest arXiv.org, will they come? (poster). In Proceedings of Joint Conference on Digital Libraries (JCDL05), June 2005.
Michael L. Nelson, Johan Bollen, Giridhar Manepalli, and Rabia Haq. Archive ingest and handling test: The Old Dominion University approach. D-Lib Magazine, 11(12), December 2005.
Marko A. Rodriguez, Johan Bollen, and Herbert Van de Sompel. The convergence of the digital libraries and the peer review process. Journal of Information Science, 32:149–159, 2005.
Jewel Ward, Johan Bollen, J. Pearson, S. Chan, H. Chi, M. Chi, K. Guevara, H. Huang, G. Kim, M. Krivokon, B. H. Lee, P. Li., F. Muliawan, V. Nguyen, B. W. Boehm, A. W. Brown, E. Colbert, and A. Lamand M. Patel. Mining and analyzing digital archive usage data to support collection development decisions (poster). In Proceedings of Joint Conference on Digital Libraries (JCDL05), page 417, June 2005.

2004

Aravind Elango, Johan Bollen, and Michael Nelson. Dynamic linking of smart digital objects based on user navigation patterns. Technical Report cs.DL/0401029, arXiv, January 2004.
Xiaoming Liu, Johan Bollen, Michael L. Nelson, Herbert Van de Sompel, Jeremy Hussell, Rick Luce, and Linn Marks. Toolkits for visualizing co-authorship graph. In Proceedings of the 2004 joint ACM/IEEE conference on Digital libraries, pages 404–404, Tuscon, AZ, 2004. (doi:10.1109/JCDL.2004.101)
Michael L. Nelson, Johan Bollen, JoAnne R. Calhoun, and Calvin E. Mackey. User evaluation of the NASA Technical Report Server Recommendation Service. In 6th ACM International Workshop on Web Information and Data Management (WIDM 2004), pages 144–152, November 2004.

2003

Johan Bollen. Review of Development of Digital Libraries - An American Perspective by Deanna B. Marcum. Journal of Documentation, 59, 2003.
Johan Bollen, Rick Luce, Somasekhar Vemulapalli, and Weining Xu. Usage analysis for the identification of research trends in digital libraries. D-Lib Magazine, 9(5), 2003.
Johan Bollen, Rick Luce, Somesekhar Vemulapalli, and Weining Xu. Detecting research trends in digital library readership. In Proceedings of the Seventh European Conference on Digital Libraries (LNCS 2769), pages 24–28, Trondheim, Norway, August 18 2003. Springer-Verlag.
Aravind Elango, Michael Nelson, and Johan Bollen. Dynamic linking of smart digital objects based on user navigation patterns. In Bella Bose, S.N.Sivananthan, and A.Chitra, editors, Eleventh International Conference on Advanced Computing and Communications (ADCOM), Coimbatore, India, December 2003.

2002

Johan Bollen and Rick Luce. Evaluation of digital library impact and user communities by analysis of usage patterns. D-Lib Magazine, 8(6), 2002.
Johan Bollen and Michael L. Nelson. Adaptive networks of smart objects. In Johan Bollen and Michael L. Nelson, editors, Proceedings of Workshop on Distributed Computing Architectures for Digital Libraries (ICPP2002), pages 487–496, Vancouver, B.C., Canada, August 18-21 2002. IEEE.
Johan Bollen, Somasekhar Vemulapalli, and Weining Xu. Digital library evaluation by analysis of user retrieval patterns. In Maristella Agosti and Costantino Thanos, editors, Sixth European Conference on Research and Advanced Technology for Digital Libraries - LNCS, pages 432–448, Rome, Italy, September 2002. Springer Verlag.
Francis Heylighen and Johan Bollen. Hebbian algorithms for digital library recommendation systems. In Johan Bollen and Michael L. Nelson, editors, Proceedings of Workshop on Distributed Computing Architectures for Digital Libraries (ICPP2002), pages 439–447, Vancouver, B.C., Canada, August 18-21 2002. IEEE.

2001, ...

Johan Bollen. A cognitive model of adaptive web design and navigation. PhD thesis, Vrije Universiteit Brussel, Brussels, Belgium, 2001.
Mariella Di Giacomo, Dan Mahoney, Johan Bollen, Andres Monroy-Hernandez, and Cesar M. Ruiz Meraz. Mylibrary, a personalization service for digital library environments. In DELOS Workshop: Personalisation and Recommender Systems in Digital Libraries, Dublin, Ireland, June 2001.
Johan Bollen. Group user models for personalized hyperlink recommendation. In LNCS 1892 - International Conference on Adaptive Hypermedia and Adaptive Web-based Systems (AH2000), pages 39–50, Trento, August 2000. Springer Verlag.
Johan Bollen and Luis M. Rocha. An adaptive systems approach to the implementation and evaluation of digital library recommendation systems. In LNCS - Fourth European Conference on Research and Advanced Technology for Digital Libraries (ECDL2000), Lisbon, September 2000. Springer Verlag.
Luis M. Rocha and Johan Bollen. Biologically motivated distributed designs for adaptive knowledge management. In I.Cohen and L. Segel, editors, Design Principles for the Immune System and other Distributed Autonomous Systems, pages 305–334. Oxford University Press, Oxford, 2000.
Johan Bollen. Cognitive complexity vs. connectivity: efficiency analysis of hypertext networks. In Francis Heylighen, Johan Bollen, and Alex Riegler, editors, The Evolution of Complexity, pages 345–368. Kluwer Academic Publishers, Dordrecht, 1999.
Johan Bollen, Herbert Van de Sompel, and Luis M. Rocha. Mining associative relations from website logs and their application to context-dependent retrieval using spreading activation. In Proceedings of the Workshop on Organizing Webspaces (ACM-DL99), Berkeley, California, 1999.
Francis Heylighen, Johan Bollen, and Alex Riegler, editors. The Evolution of Complexity. Kluwer Academic Publishers, Dordrecht, 1999.
Johan Bollen and Francis Heylighen. A system to restructure hypertext networks into valid user models. The New Review of Hypermedia and Multimedia, 4:189–213, 1998.
Johan Bollen, Francis Heylighen, and Dirk van Rooy. Improving memetic evolution in hypertext and the WWW. In Proceedings of the 15th International Congress on Cybernetics, pages 449–454, Namur, 1998. International Association of Cybernetics.
Paul Marsden and Johan Bollen. Help advertising evolve: clone consumber thought-patterns. AdMap, 34(3):37–39, 1998.
Johan Bollen and Francis Heylighen. Dynamic and adaptive structuring of the world wide web based on user navigation patterns. In Proceedings of the Flexible Hypertext Workshop, pages 13–17, Sydney, 1997. Macquarie Computing Reports.
Johan Bollen. Selfstructuring hypertext networks that learn to reflect the common semantics of their users: applications to the WWW. In Proceedings of the Annual Meeting of the Belgian Psychological Society, Brussels, 1996. Belgian Psychological Society.
Johan Bollen and Francis Heylighen. Algorithms for the self-organization of distributed, multi-user networks. In R. Trappl, editor, Proceedings of the 13th European Meeting on Cybernetics and Systems Research, pages 911–917, Vienna, Austria, 1996. Austrian Society for Cybernetic Studies.
Francis Heylighen and Johan Bollen. The world-wide web as a super-brain: from metaphor to model. In R. Trappl, editor, Cybernetics and Sstems '96, pages 917–925. Austrian Society for Cybernetic Studies, 1996.
Johan Bollen. Adaptive hypertext networks that learn the common semantics of their users. In Proceedings of the 14th Int. Congress on Cybernetics, pages 251–255, Namur, 1995. International Association of Cybernetics.
Johan Bollen. The principia cybernetica web: a knowledge base for systems research. International Federation for Systems Research Newsletter, 34, December 1994.

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