A system to restructure hypertext networks into valid user models. - Johan Bollen; Francis Heylighen (New Rev. Hypermedia Multim., 1998)

Mining Associative Relations from Website Logs and their Application to Context-Dependent Retrieval Using Spreading Activation. - Johan Bollen; Herbert Van de Sompel; Luis Mateus Rocha (WOWS, 1999)

Group User Models for Personalized Hyperlink Recommendations. - Johan Bollen (AH, 2000)

An Adaptive Systems Approach to the Implementation and Evaluation of Digital Library Recommendation Systems. - Johan Bollen; Luis M. Rocha (ECDL, 2000)

Biologically Motivated Distributed Designs for Adaptive Knowledge Management - Luis M. Rocha; Johan Bollen (CoRR, 2000)

MyLibrary, A Personalization Service for Digital Library Environments. - Mariella Di Giacomo; Dan Mahoney; Johan Bollen; Andrés Monroy-Hernández; Cesar M. Ruiz Meraz (DELOS, 2001)

Digital Library Evaluation by Analysis of User Retrieval Patterns. - Johan Bollen; Somasekhar Vemulapalli; Weining Xu (ECDL, 2002)

Distributed Computing Architectures for Digital Libraries Workshop. - Johan Bollen; Michael L. Nelson 001 (ICPP Workshops, 2002)

Adaptive Networks of Smart Objects. - Johan Bollen; Michael L. Nelson 001 (ICPP Workshops, 2002)

Hebbian Algorithms for a Digital Library Recommendation System. - Francis Heylighen; Johan Bollen (ICPP Workshops, 2002)

Evaluation of Digital Library Impact and User Communities by Analysis of Usage Patterns. - Johan Bollen; Richard Luce (D Lib Mag., 2002)

Detecting Research Trends in Digital Library Readership. - Johan Bollen; Richard Luce; Somasekhar Vemulapalli; Weining Xu (ECDL, 2003)

Usage Analysis for the Identification of Research Trends in Digital Libraries. - Johan Bollen; Somasekhar Vemulapalli; Weining Xu; Rick Luce (D Lib Mag., 2003)

Development of Digital Libraries - An American Perspective. - Johan Bollen (J. Documentation, 2003)

Toolkits for visualizing co-authorship graph. - Xiaoming Liu 005; Johan Bollen; Michael L. Nelson 001; Herbert Van de Sompel; Jeremy A. T. Hussell; Richard Luce; Linn Marks (JCDL, 2004)

User evaluation of the NASA technical report server recommendation service. - Michael L. Nelson 001; Johan Bollen; JoAnne R. Calhoun; Calvin E. Mackey (WIDM, 2004)

Initial Experiences Re-Exporting Duplicate and Similarity Computation with an OAI-PMH aggregator - Terry L. Harrison; Aravind Elango; Johan Bollen; Michael L. Nelson 001 (CoRR, 2004)

Dynamic Linking of Smart Digital Objects Based on User Navigation Patterns - Aravind Elango; Johan Bollen; Michael L. Nelson 001 (CoRR, 2004)

Evaluation of the NSDL and Google for Obtaining Pedagogical Resources. - Frank McCown; Johan Bollen; Michael L. Nelson 001 (ECDL, 2005)

Distributed, real-time computation of community preferences. - Thomas Lutkenhouse; Michael L. Nelson 001; Johan Bollen (Hypertext, 2005)

Mining and analyzing digital archive usage data to support collection development decisions. - Jewel Ward; Johan Bollen; Jeffrey Pearson; Shing-Cheung Chan; Hui-Hsien Chi; Marie Chi; Kristine Guevara; Hsiao-Han Huang; Genesan Kim; Maks Krivokon; Bo H. Lee; Pei-Han Li; et al. (JCDL, 2005)

The Availability and Persistence of Web References in D-Lib Magazine - Frank McCown; Sheffan Chan; Michael L. Nelson 001; Johan Bollen (CoRR, 2005)

Reconstructing Websites for the Lazy Webmaster - Frank McCown; Joan A. Smith; Michael L. Nelson 001; Johan Bollen (CoRR, 2005)

Trend Analysis of the Digital Library Community. - Johan Bollen; Michael L. Nelson 001; Giridhar Manepalli; Giridhar Nandigam; Suchitra Manepalli (D Lib Mag., 2005)

Archive Ingest and Handling Test: The Old Dominion University Approach. - Michael L. Nelson 001; Johan Bollen; Giridhar Manepalli; Rabia Haq (D Lib Mag., 2005)

Toward alternative metrics of journal impact: A comparison of download and citation data. - Johan Bollen; Herbert Van de Sompel; Joan A. Smith; Richard Luce (Inf. Process. Manag., 2005)

Co-authorship networks in the digital library research community. - Xiaoming Liu 005; Johan Bollen; Michael L. Nelson 001; Herbert Van de Sompel (Inf. Process. Manag., 2005)

Video Recommendations for the Open Video Project. - Johan Bollen; Michael L. Nelson 001; Raquel Araujo; Gary Geisler (Bull. IEEE Tech. Comm. Digit. Libr., 2005)

If You Harvest arXiv.org, Will They Come? - Michael L. Nelson 001; Johan Bollen (Bull. IEEE Tech. Comm. Digit. Libr., 2005)

Supporting Collection Development Decisions by Mining and Analyzing Digital Archive Usage Data. - Jewel Ward; Johan Bollen; Jeffrey Pearson; Shing-Cheung Chan; Hui-Hsien Chi; Marie Chi; Kristine Guevara; Hsiao-Han Huang; Genesan Kim; Maks Krivokon; Bo H. Lee; Pei-Han Li; et al. (Bull. IEEE Tech. Comm. Digit. Libr., 2005)

An architecture for the aggregation and analysis of scholarly usage data. - Johan Bollen; Herbert Van de Sompel (JCDL, 2006)

An analysis of the bid behavior of the 2005 JCDL program committee. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (JCDL, 2006)

Simulating Network Influence Algorithms Using Particle-Swarms: PageRank and PageRank-Priors - Marko A. Rodriguez; Johan Bollen (CoRR, 2006)

The convergence of digital libraries and the peer-review process. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (J. Inf. Sci., 2006)

Journal status. - Johan Bollen; Marko A. Rodriguez; Herbert Van de Sompel (Scientometrics, 2006)

Mapping the structure of science through usage. - Johan Bollen; Herbert Van de Sompel (Scientometrics, 2006)

Smartocracy: Social Networks for Collective Decision Making. - Marko A. Rodriguez; Daniel J. Steinbock; Jennifer H. Watkins; Carlos Gershenson; Johan Bollen; Victor Grey; Brad deGraf (HICSS, 2007)

Collective intelligence for decision support in very large stakeholder networks: The future US energy system. - Steen Rasmussen; Diana Mangalagiu; Hans Ziock; Johan Bollen; Gordon N. Keating (ALIFE, 2007)

MESUR: usage-based metrics of scholarly impact. - Johan Bollen; Marko A. Rodriguez; Herbert Van de Sompel (JCDL, 2007)

A practical ontology for the large-scale modeling of scholarly artifacts and their usage. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (JCDL, 2007)

The largest scholarly semantic network...ever. - Johan Bollen; Marko A. Rodriguez; Herbert Van de Sompel; Lyudmila Balakireva; Aric A. Hagberg (WWW, 2007)

Distributed (design) knowledge exchange. - Ann Heylighen; Francis Heylighen; Johan Bollen; Mathias Casaer (AI Soc., 2007)

Modeling Computations in a Semantic Network - Marko A. Rodriguez; Johan Bollen (CoRR, 2007)

Using RDF to Model the Structure and Process of Systems - Marko A. Rodriguez; Jennifer H. Watkins; Johan Bollen; Carlos Gershenson (CoRR, 2007)

Usage derived recommendations for a video digital library. - Johan Bollen; Michael L. Nelson 001; Gary Geisler; Raquel Araujo (J. Netw. Comput. Appl., 2007)

Mapping the bid behavior of conference referees. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (J. Informetrics, 2007)

Analysis of the Bid Behavior of the 2005 JCDL Program Committee. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (Bull. IEEE Tech. Comm. Digit. Libr., 2007)

Between Conjecture and Memento: Shaping A Collective Emotional Perception of the Future. - Alberto Pepe; Johan Bollen (AAAI Spring Symposium: Emotion, Personality, and Social Behavior, 2008)

An algorithm to determine peer-reviewers. - Marko A. Rodriguez; Johan Bollen (CIKM, 2008)

A ranking and exploration service based on large-scale usage data. - Johan Bollen; Herbert Van de Sompel; Lyudmila Balakireva; Ryan Chute (JCDL, 2008)

Towards usage-based impact metrics: first results from the mesur project. - Johan Bollen; Herbert Van de Sompel; Marko A. Rodriguez (JCDL, 2008)

Tools and MetricsKeynote speech. - Donald King; Denis Jérome; Mary Van Allen; Peter Shepherd; Johan Bollen (Inf. Serv. Use, 2008)

Usage impact factor: The effects of sample characteristics on usage-based impact metrics. - Johan Bollen; Herbert Van de Sompel (J. Assoc. Inf. Sci. Technol., 2008)

A principal component analysis of 39 scientific impact measures - Johan Bollen; Herbert Van de Sompel; Aric A. Hagberg; Ryan Chute (CoRR, 2009)

Automatic metadata generation using associative networks. - Marko A. Rodriguez; Johan Bollen; Herbert Van de Sompel (ACM Trans. Inf. Syst., 2009)

Determining the Public Mood State by Analysis of Microblogging Posts. - Johan Bollen (ALIFE, 2010)

Usage bibliometrics. - Michael J. Kurtz; Johan Bollen (Annu. Rev. Inf. Sci. Technol., 2010)

Modeling Public Mood and Emotion: Twitter Sentiment and Socio-Economic Phenomena. - Johan Bollen; Huina Mao; Alberto Pepe (ICWSM, 2011)

Happiness Is Assortative in Online Social Networks. - Johan Bollen; Bruno Gonçalves; Guangchen Ruan; Huina Mao (Artif. Life, 2011)

Twitter Mood as a Stock Market Predictor. - Johan Bollen; Huina Mao (Computer, 2011)

Predicting Financial Markets: Comparing Survey,News, Twitter and Search Engine Data - Huina Mao; Scott Counts; Johan Bollen (CoRR, 2011)

Twitter mood predicts the stock market. - Johan Bollen; Huina Mao; Xiao-Jun Zeng (J. Comput. Sci., 2011)

How and where the TeraGrid supercomputing infrastructure benefits science. - Johan Bollen; Geoffrey C. Fox; Prashant Raj Singhal (J. Informetrics, 2011)

Improving news ranking by community tweets. - Xin Shuai; Xiaozhong Liu; Johan Bollen (WWW (Companion Volume), 2012)

How the Scientific Community Reacts to Newly Submitted Preprints: Article Downloads, Twitter Mentions, and Citations - Xin Shuai; Alberto Pepe; Johan Bollen (CoRR, 2012)

Adding community and dynamic to topic models. - Daifeng Li; Ying Ding 001; Xin Shuai; Johan Bollen; Jie Tang 001; Shanshan Chen; Jiayi Zhu; Guilherme Rocha (J. Informetrics, 2012)

A comparative study of academic and Wikipedia ranking. - Xin Shuai; Zhuoren Jiang; Xiaozhong Liu; Johan Bollen (JCDL, 2013)

Collective allocation of science funding: from funding agencies to scientific agency - Johan Bollen; David J. Crandall; Damion Junk; Ying Ding 001; Katy Börner (CoRR, 2013)

Mining diversity subgraph in multidisciplinary scientific collaboration networks: A meso perspective. - Bing He 003; Ying Ding 001; Jie Tang 001; Vignesh Reguramalingam; Johan Bollen (J. Informetrics, 2013)

Computational models of consumer confidence from large-scale online attention data: crowd-sourcing econometrics. - Xianlei Dong; Johan Bollen (CoRR, 2014)

Computational fact checking from knowledge networks. - Giovanni Luca Ciampaglia; Prashant Shiralkar; Luis M. Rocha; Johan Bollen; Filippo Menczer; Alessandro Flammini (CoRR, 2015)

Collective dynamics of belief evolution under cognitive coherence and social conformity. - Nathaniel Rodriguez; Johan Bollen; Yong-Yeol Ahn (CoRR, 2015)

Quantifying socio-economic indicators in developing countries from mobile phone communication data: applications to Côte d'Ivoire. - Huina Mao; Xin Shuai; Yong-Yeol Ahn; Johan Bollen (EPJ Data Sci., 2015)

Comparing Community-based Information Adoption and Diffusion Across Different Microblogging Sites. - Xiaozhong Liu; Xing Yu; Zheng Gao 001; Tian Xia; Johan Bollen (HT, 2016)

Human Sexual Cycles are Driven by Culture and Match Collective Moods. - Ian B. Wood; Pedro Leal Varela; Johan Bollen; Luis M. Rocha; Joana Gonçalves-Sá (CoRR, 2017)

Power Structure in Chilean News Media. - Jorge Bahamonde; Johan Bollen; Erick Elejalde; Leo Ferres; Barbara Poblete (CoRR, 2017)

The happiness paradox: your friends are happier than you. - Johan Bollen; Bruno Gonçalves; Ingrid van de Leemput; Guangchen Ruan (EPJ Data Sci., 2017)

Quantifying perceived impact of scientific publications. - Filippo Radicchi; Alexander Weissman; Johan Bollen (J. Informetrics, 2017)

An efficient system to fund science: from proposal review to peer-to-peer distributions. - Johan Bollen; David J. Crandall; Damion Junk; Ying Ding 001; Katy Börner (Scientometrics, 2017)

Does putting your emotions into words make you feel better? Measuring the minute-scale dynamics of emotions from online data. - Rui Fan; Ali Varamesh; Onur Varol; Alexander T. J. Barron; Ingrid van de Leemput; Marten Scheffer; Johan Bollen (CoRR, 2018)

Quantifying the ecological diversity and health of online news. - Erick Elejalde; Leo Ferres; Eelco Herder; Johan Bollen (J. Comput. Sci., 2018)

Rethinking Resource Allocation in Science. - Johan Bollen; Stephen Carpenter; Jane Lubchenco; Marten Scheffer (CoRR, 2019)

Mining social media data for biomedical signals and health-related behavior. - Rion Brattig Correia; Ian B. Wood; Johan Bollen; Luis M. Rocha (CoRR, 2020)

Depressed individuals express more distorted thinking on social media. - Krishna C. Bathina; Marijn ten Thij; Lorenzo Lorenzo-Luaces; Lauren A. Rutter; Johan Bollen (CoRR, 2020)

Historical language records reveal a surge of cognitive distortions in recent decades. - Johan Bollen; Marijn ten Thij; Fritz Breithaupt; Alexander T. J. Barron; Lauren A. Rutter; Lorenzo Lorenzo-Luaces; Marten Scheffer (Proc. Natl. Acad. Sci. USA, 2021)

Reply to Schmidt et al.: A robust surge of cognitive distortions in historical language. - Johan Bollen; Marijn ten Thij; Fritz Breithaupt; Alexander T. J. Barron; Lauren A. Rutter; Lorenzo Lorenzo-Luaces; Marten Scheffer (Proc. Natl. Acad. Sci. USA, 2021)

Quantifying societal emotional resilience to natural disasters from geo-located social media content. - Krishna C. Bathina; Marijn ten Thij; Johan Bollen (CoRR, 2022)

Quantifying the Digital Phenotype of Loneliness on Twitter. - Ege Otenen; Ozgur Can Seckin; Danny Valdez; Johan Bollen (CogSci, 2023)

Don't follow the leader: Independent thinkers create scientific innovation. - Sean Kelty; Raiyan Abdul Baten; Adiba Mahbub Proma; Ehsan Hoque 001; Johan Bollen; Gourab Ghoshal (CoRR, 2023)

Large language models and scientific publishing. - Ronald Rousseau 001; Liying Yang; Johan Bollen; Zhesi Shen (J. Data Inf. Sci., 2023)

Social inequality and cultural factors impact the awareness and reaction during the cryptic transmission period of pandemic. - Zhuoren Jiang; Xiaozhong Liu; Yangyang Kang; Changlong Sun; Yong-Yeol Ahn; Johan Bollen (CoRR, 2025)

GPT Editors, Not Authors: The Stylistic Footprint of LLMs in Academic Preprints. - Soren DeHaan; Yuanze Liu; Johan Bollen; Saúl A. Blanco (CoRR, 2025)