@article{journals/arist/KurtzB10,
  added-at = {2012-02-07T00:00:00.000+0100},
  author = {Kurtz, Michael J. and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/27a747ade96607326f09fbe3d13d8b33e/dblp},
  ee = {http://dx.doi.org/10.1002/aris.2010.1440440108},
  interhash = {d85bdd4feb80d40cfb1da25dc2845721},
  intrahash = {7a747ade96607326f09fbe3d13d8b33e},
  journal = {ARIST},
  keywords = {dblp},
  number = 1,
  pages = {1-64},
  title = {Usage bibliometrics.},
  url = {http://dblp.uni-trier.de/db/journals/arist/arist44.html#KurtzB10},
  volume = 44,
  year = 2010
}

@article{bollen2009clickstream,
  abstract = {Background

Intricate maps of science have been created from citation data to visualize the structure of scientific activity. However, most scientific publications are now accessed online. Scholarly web portals record detailed log data at a scale that exceeds the number of all existing citations combined. Such log data is recorded immediately upon publication and keeps track of the sequences of user requests (clickstreams) that are issued by a variety of users across many different domains. Given these advantages of log datasets over citation data, we investigate whether they can produce high-resolution, more current maps of science.

Methodology

Over the course of 2007 and 2008, we collected nearly 1 billion user interactions recorded by the scholarly web portals of some of the most significant publishers, aggregators and institutional consortia. The resulting reference data set covers a significant part of world-wide use of scholarly web portals in 2006, and provides a balanced coverage of the humanities, social sciences, and natural sciences. A journal clickstream model, i.e. a first-order Markov chain, was extracted from the sequences of user interactions in the logs. The clickstream model was validated by comparing it to the Getty Research Institute's Architecture and Art Thesaurus. The resulting model was visualized as a journal network that outlines the relationships between various scientific domains and clarifies the connection of the social sciences and humanities to the natural sciences.


Conclusions

Maps of science resulting from large-scale clickstream data provide a detailed, contemporary view of scientific activity and correct the underrepresentation of the social sciences and humanities that is commonly found in citation data.},
  added-at = {2012-01-24T12:21:50.000+0100},
  author = {Bollen, Johan and van de Sompel, Herbert and Hagberg, Aric and Bettencourt, Luis and Chute, Ryan and Rodriguez, Marko A. and Balakireva, Lyudmila},
  biburl = {http://www.bibsonomy.org/bibtex/2e61bd0c26cc1c08cff22a8301d03044f/jaeschke},
  doi = {10.1371/journal.pone.0004803},
  interhash = {3a371a1ed31d14204770315b52023b96},
  intrahash = {e61bd0c26cc1c08cff22a8301d03044f},
  journal = {PLoS ONE},
  keywords = {analysis citation science toread scientometrics},
  month = mar,
  number = 3,
  pages = {e4803},
  publisher = {Public Library of Science},
  title = {Clickstream Data Yields High-Resolution Maps of Science},
  url = {http://dx.doi.org/10.1371/journal.pone.0004803},
  volume = 4,
  year = 2009
}

@inproceedings{conf/icwsm/BollenMP11,
  added-at = {2012-01-04T00:00:00.000+0100},
  author = {Bollen, Johan and Mao, Huina and Pepe, Alberto},
  biburl = {http://www.bibsonomy.org/bibtex/2170f86e4ed5285724b5eb41cf5f2e44a/dblp},
  booktitle = {ICWSM},
  crossref = {conf/icwsm/2011},
  editor = {Adamic, Lada A. and Baeza-Yates, Ricardo A. and Counts, Scott},
  ee = {http://www.aaai.org/ocs/index.php/ICWSM/ICWSM11/paper/view/2826},
  interhash = {c0528df8776ea30a3818a170a8967612},
  intrahash = {170f86e4ed5285724b5eb41cf5f2e44a},
  keywords = {dblp},
  publisher = {The AAAI Press},
  title = {Modeling Public Mood and Emotion: Twitter Sentiment and Socio-Economic Phenomena.},
  url = {http://dblp.uni-trier.de/db/conf/icwsm/icwsm2011.html#BollenMP11},
  year = 2011
}

@article{journals/corr/abs-1112-1051,
  added-at = {2012-01-01T00:00:00.000+0100},
  author = {Mao, Huina and Counts, Scott and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/21d189d7cb5bccf30ec1aebd0badd162e/dblp},
  ee = {http://arxiv.org/abs/1112.1051},
  interhash = {a435f4f80cc37b4283fbdbac92ae5665},
  intrahash = {1d189d7cb5bccf30ec1aebd0badd162e},
  journal = {CoRR},
  keywords = {dblp},
  title = {Predicting Financial Markets: Comparing Survey,News, Twitter and Search Engine Data},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr1112.html#abs-1112-1051},
  volume = {abs/1112.1051},
  year = 2011
}

@inproceedings{bollen2009suggestions,
  abstract = {Most tagging systems support the user in the tag selection process by providing tag suggestions, or recommendations, based on a popularity measurement of tags other users provided when tagging the same resource. The majority of theories and mathematical models of tagging found in the literature assume that the emergence of power laws in tagging systems is mainly driven by the imitation behavior of users when observing tag suggestions provided by the user interface of the tagging system. We present experimental results that show that the power law distribution forms regardless of whether or not tag suggestions are presented to the users.},
  acmid = {1557988},
  added-at = {2011-12-21T21:59:59.000+0100},
  address = {New York, NY, USA},
  author = {Bollen, Dirk and Halpin, Harry},
  biburl = {http://www.bibsonomy.org/bibtex/2af3f6ceb98d1d26172b3d0c00dee4a2a/beate},
  booktitle = {Proceedings of the 20th ACM conference on Hypertext and hypermedia},
  description = {The role of tag suggestions in folksonomies},
  doi = {10.1145/1557914.1557988},
  interhash = {280a97ee745f4e0409cf031a1b7ea247},
  intrahash = {af3f6ceb98d1d26172b3d0c00dee4a2a},
  isbn = {978-1-60558-486-7},
  keywords = {folksonomy power-law preferential-attachment tag-recommendation tagging},
  location = {Torino, Italy},
  numpages = {2},
  pages = {359--360},
  publisher = {ACM},
  series = {HT '09},
  title = {The role of tag suggestions in folksonomies},
  url = {http://doi.acm.org/10.1145/1557914.1557988},
  year = 2009
}

@article{journals/jocs/BollenMZ11,
  added-at = {2011-12-19T00:00:00.000+0100},
  author = {Bollen, Johan and Mao, Huina and Zeng, Xiao-Jun},
  biburl = {http://www.bibsonomy.org/bibtex/21ed0a2585400a54e1f332b3f5b2f5a41/dblp},
  ee = {http://dx.doi.org/10.1016/j.jocs.2010.12.007},
  interhash = {93a641671c8f2a8c69647c0e333c9798},
  intrahash = {1ed0a2585400a54e1f332b3f5b2f5a41},
  journal = {J. Comput. Science},
  keywords = {dblp},
  number = 1,
  pages = {1-8},
  title = {Twitter mood predicts the stock market.},
  url = {http://dblp.uni-trier.de/db/journals/jocs/jocs2.html#BollenMZ11},
  volume = 2,
  year = 2011
}

@inproceedings{conf/icls/JoolingenB10,
  added-at = {2011-12-19T00:00:00.000+0100},
  author = {van Joolingen, Wouter R. and Bollen, Lars},
  biburl = {http://www.bibsonomy.org/bibtex/272101d4139fc1428bc872fb961c43adf/dblp},
  booktitle = {ICLS},
  crossref = {conf/icls/2010-2},
  editor = {Goldman, Susan R. and Pellegrino, James and Gomez, Kimberly and Lyons, Leilah and Radinsky, Joshua},
  ee = {http://dl.acm.org/citation.cfm?id=1854589},
  interhash = {90535bab79ed14a70cf99d244ca8e364},
  intrahash = {72101d4139fc1428bc872fb961c43adf},
  keywords = {dblp},
  pages = {169-171},
  publisher = {International Society of the Learning Sciences / ACM DL},
  title = {Interactive drawing tools to support modeling of dynamic systems.},
  url = {http://dblp.uni-trier.de/db/conf/icls/icls2010-2.html#JoolingenB10},
  year = 2010
}

@inproceedings{conf/cscl/McLarenBWHS05,
  added-at = {2011-12-13T00:00:00.000+0100},
  author = {McLaren, Bruce M. and Bollen, Lars and Walker, Erin and Harrer, Andreas and Sewall, Jonathan},
  biburl = {http://www.bibsonomy.org/bibtex/25e65e57c8d30cca0c3c909a407667df9/dblp},
  booktitle = {CSCL},
  crossref = {conf/cscl/2005},
  editor = {Chan, Tak-Wai},
  ee = {http://dl.acm.org/citation.cfm?id=1149348},
  interhash = {7fa43bbf4ada5903794c28324b20ab5f},
  intrahash = {5e65e57c8d30cca0c3c909a407667df9},
  isbn = {0-8058-5782-6},
  keywords = {dblp},
  pages = {418-422},
  publisher = {International Society of the Learning Sciences},
  title = {Cognitive tutoring of collaboration: developmental and empirical steps towards realization.},
  url = {http://dblp.uni-trier.de/db/conf/cscl/cscl2005.html#McLarenBWHS05},
  year = 2005
}

@misc{Mao2011,
  abstract = {  Financial market prediction on the basis of online sentiment tracking has
drawn a lot of attention recently. However, most results in this emerging
domain rely on a unique, particular combination of data sets and sentiment
tracking tools. This makes it difficult to disambiguate measurement and
instrument effects from factors that are actually involved in the apparent
relation between online sentiment and market values. In this paper, we survey a
range of online data sets (Twitter feeds, news headlines, and volumes of Google
search queries) and sentiment tracking methods (Twitter Investor Sentiment,
Negative News Sentiment and Tweet & Google Search volumes of financial terms),
and compare their value for financial prediction of market indices such as the
Dow Jones Industrial Average, trading volumes, and market volatility (VIX), as
well as gold prices. We also compare the predictive power of traditional
investor sentiment survey data, i.e. Investor Intelligence and Daily Sentiment
Index, against those of the mentioned set of online sentiment indicators. Our
results show that traditional surveys of Investor Intelligence are lagging
indicators of the financial markets. However, weekly Google Insight Search
volumes on financial search queries do have predictive value. An indicator of
Twitter Investor Sentiment and the frequency of occurrence of financial terms
on Twitter in the previous 1-2 days are also found to be very statistically
significant predictors of daily market log return. Survey sentiment indicators
are however found not to be statistically significant predictors of financial
market values, once we control for all other mood indicators as well as the
VIX.
},
  added-at = {2011-12-06T11:55:36.000+0100},
  author = {Mao, Huina and Counts, Scott and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/21b485857225ba13c4903534c89a96d47/maxirichter},
  description = {Predicting Financial Markets: Comparing Survey,News, Twitter and Search
  Engine Data},
  interhash = {a435f4f80cc37b4283fbdbac92ae5665},
  intrahash = {1b485857225ba13c4903534c89a96d47},
  keywords = {prediction social_media},
  note = {cite arxiv:1112.1051Comment: This paper includes 10 pages, 6 figures and 10 tables},
  title = {Predicting Financial Markets: Comparing Survey,News, Twitter and Search
  Engine Data},
  url = {http://arxiv.org/PS_cache/arxiv/pdf/1112/1112.1051v1.pdf},
  year = 2011
}

@article{journals/corr/abs-cs-0504084,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Rodriguez, Marko A. and Bollen, Johan and de Sompel, Herbert Van},
  biburl = {http://www.bibsonomy.org/bibtex/2015e700614fe9bf695bfea94e373c1c4/dblp},
  ee = {http://arxiv.org/abs/cs/0504084},
  interhash = {25bf3b081fefad971f838374d98e08b0},
  intrahash = {015e700614fe9bf695bfea94e373c1c4},
  journal = {CoRR},
  keywords = {dblp},
  title = {The Convergence of Digital-Libraries and the Peer-Review Process},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0504.html#abs-cs-0504084},
  volume = {abs/cs/0504084},
  year = 2005
}

@article{journals/corr/abs-1103-0784,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Bollen, Johan and Gonçalves, Bruno and Ruan, Guangchen and Mao, Huina},
  biburl = {http://www.bibsonomy.org/bibtex/27f0598ef034dee1a0031d2391558eb03/dblp},
  ee = {http://arxiv.org/abs/1103.0784},
  interhash = {ad5dc41f1ed3c63b3731ab94f8b0c8bb},
  intrahash = {7f0598ef034dee1a0031d2391558eb03},
  journal = {CoRR},
  keywords = {dblp},
  title = {Happiness is assortative in online social networks},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr1103.html#abs-1103-0784},
  volume = {abs/1103.0784},
  year = 2011
}

@article{journals/corr/abs-cs-0610154,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Bollen, Johan and de Sompel, Herbert Van},
  biburl = {http://www.bibsonomy.org/bibtex/205c0c7a096f19809da0750605012ac19/dblp},
  ee = {http://arxiv.org/abs/cs/0610154},
  interhash = {e6f88fc4490d653b2a82843d7710e7be},
  intrahash = {05c0c7a096f19809da0750605012ac19},
  journal = {CoRR},
  keywords = {dblp},
  title = {Usage Impact Factor: the effects of sample characteristics on usage-based impact metrics},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0610.html#abs-cs-0610154},
  volume = {abs/cs/0610154},
  year = 2006
}

@article{journals/corr/cs-IR-0002010,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Rocha, Luis Mateus and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/2b0a44adf92e7bb0995d41c6b52da0169/dblp},
  ee = {http://arxiv.org/abs/cs.IR/0002010},
  interhash = {ff9af9012ebabb7183c4add46a5830e3},
  intrahash = {b0a44adf92e7bb0995d41c6b52da0169},
  journal = {CoRR},
  keywords = {dblp},
  title = {Biologically Motivated Distributed Designs for Adaptive Knowledge Management},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0002.html#cs-IR-0002010},
  volume = {cs.IR/0002010},
  year = 2000
}

@article{journals/corr/cs-DL-0401029,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Elango, Aravind and Bollen, Johan and Nelson, Michael L.},
  biburl = {http://www.bibsonomy.org/bibtex/2ffc86854970e38ec646ce2596dad175e/dblp},
  ee = {http://arxiv.org/abs/cs.DL/0401029},
  interhash = {13b90773b5c1c8bcbf95d471dbc713af},
  intrahash = {ffc86854970e38ec646ce2596dad175e},
  journal = {CoRR},
  keywords = {dblp},
  title = {Dynamic Linking of Smart Digital Objects Based on User Navigation Patterns},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0401.html#cs-DL-0401029},
  volume = {cs.DL/0401029},
  year = 2004
}

@article{journals/corr/abs-cs-0605113,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Bollen, Johan and de Sompel, Herbert Van},
  biburl = {http://www.bibsonomy.org/bibtex/27261d2d436566b43cc6805a824f8c570/dblp},
  ee = {http://arxiv.org/abs/cs/0605113},
  interhash = {65b9393c43c15e89ccaaf821d38cb4da},
  intrahash = {7261d2d436566b43cc6805a824f8c570},
  journal = {CoRR},
  keywords = {dblp},
  title = {An Architecture for the Aggregation and Analysis of Scholarly Usage Data},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0605.html#abs-cs-0605113},
  volume = {abs/cs/0605113},
  year = 2006
}

@article{journals/corr/abs-0706-0022,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Rodriguez, Marko A. and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/26345612ff92148cacb604e38fcb35fa2/dblp},
  ee = {http://arxiv.org/abs/0706.0022},
  interhash = {fab57ffe5417780af7471a0524b1f428},
  intrahash = {6345612ff92148cacb604e38fcb35fa2},
  journal = {CoRR},
  keywords = {dblp},
  title = {Modeling Computations in a Semantic Network},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0706.html#abs-0706-0022},
  volume = {abs/0706.0022},
  year = 2007
}

@article{journals/corr/abs-cs-0502056,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {0005, Xiaoming Liu and Bollen, Johan and Nelson, Michael L. and de Sompel, Herbert Van},
  biburl = {http://www.bibsonomy.org/bibtex/2d843f04189d775fbf40e2745ecbd1be2/dblp},
  ee = {http://arxiv.org/abs/cs/0502056},
  interhash = {30a9ff05a642b385fae576503b18ea80},
  intrahash = {d843f04189d775fbf40e2745ecbd1be2},
  journal = {CoRR},
  keywords = {dblp},
  title = {Co-Authorship Networks in the Digital Library Research Community},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0502.html#abs-cs-0502056},
  volume = {abs/cs/0502056},
  year = 2005
}

@article{journals/corr/abs-cs-0511077,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {McCown, Frank and Chan, Sheffan and Nelson, Michael L. and Bollen, Johan},
  biburl = {http://www.bibsonomy.org/bibtex/2eb817d085699438856dfffa18905ccca/dblp},
  ee = {http://arxiv.org/abs/cs/0511077},
  interhash = {a3a892838b5485ae8739a47697f6750d},
  intrahash = {eb817d085699438856dfffa18905ccca},
  journal = {CoRR},
  keywords = {dblp},
  title = {The Availability and Persistence of Web References in D-Lib Magazine},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0511.html#abs-cs-0511077},
  volume = {abs/cs/0511077},
  year = 2005
}

@article{journals/corr/abs-0709-1167,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Rodriguez, Marko A. and Watkins, Jennifer H. and Bollen, Johan and Gershenson, Carlos},
  biburl = {http://www.bibsonomy.org/bibtex/2a46b43e0995bfc25cb9e34a8ac84c4fe/dblp},
  ee = {http://arxiv.org/abs/0709.1167},
  interhash = {f2b9bf675391998ec3a7dc86fdb85a15},
  intrahash = {a46b43e0995bfc25cb9e34a8ac84c4fe},
  journal = {CoRR},
  keywords = {dblp},
  title = {Using RDF to Model the Structure and Process of Systems},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0709.html#abs-0709-1167},
  volume = {abs/0709.1167},
  year = 2007
}

@article{journals/corr/cs-DL-0401001,
  added-at = {2011-12-05T00:00:00.000+0100},
  author = {Harrison, Terry L. and Elango, Aravind and Bollen, Johan and Nelson, Michael L.},
  biburl = {http://www.bibsonomy.org/bibtex/23a024c2d251caec08e786951d2d8fdf3/dblp},
  ee = {http://arxiv.org/abs/cs.DL/0401001},
  interhash = {6f346fc86fcf2a7cb802c5f335a9b8e7},
  intrahash = {3a024c2d251caec08e786951d2d8fdf3},
  journal = {CoRR},
  keywords = {dblp},
  title = {Initial Experiences Re-Exporting Duplicate and Similarity Computation with an OAI-PMH aggregator},
  url = {http://dblp.uni-trier.de/db/journals/corr/corr0401.html#cs-DL-0401001},
  volume = {cs.DL/0401001},
  year = 2004
}