-
Golinski, M.: Use, but verify : composite indices for measuring the information society (2010)
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- Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
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Rodríguez-Vidal, J.; Gonzalo, J.; Plaza, L.; Anaya Sánchez, H.: Automatic detection of influencers in social networks : authority versus domain signals (2019)
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- Abstract
- Given the task of finding influencers (opinion makers) for a given domain in a social network, we investigate (a) what is the relative importance of domain and authority signals, (b) what is the most effective way of combining signals (voting, classification, learning to rank, etc.) and how best to model the vocabulary signal, and (c) how large is the gap between supervised and unsupervised methods and what are the practical consequences. Our best results on the RepLab dataset (which improves the state of the art) uses language models to learn the domain-specific vocabulary used by influencers and combines domain and authority models using a Learning to Rank algorithm. Our experiments show that (a) both authority and domain evidence can be trained from the vocabulary of influencers; (b) once the language of influencers is modeled as a likelihood signal, further supervised learning and additional network-based signals only provide marginal improvements; and (c) the availability of training data sets is crucial to obtain competitive results in the task. Our most remarkable finding is that influencers do use a distinctive vocabulary, which is a more reliable signal than nontextual network indicators such as the number of followers, retweets, and so on.
-
Huvila, I.: Mining qualitative data on human information behaviour from the Web (2010)
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- Source
- Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
-
Botte, A.; Rittberger, M.; Schindler, C.: Virtuelle Forschungsumgebungen : Wissenschaftspolitische Erwartungen, informationswissenschaftliche Forschungsfelder und Herausforderungen (2010)
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- Source
- Information und Wissen: global, sozial und frei? Proceedings des 12. Internationalen Symposiums für Informationswissenschaft (ISI 2011) ; Hildesheim, 9. - 11. März 2011. Hrsg.: J. Griesbaum, T. Mandl u. C. Womser-Hacker
-
Bäcker, P.; Macit, U.: Computergestützte Freizeitplanung basierend auf Points Of Interest (2010)
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- Abstract
- Beschrieben wird die Entwicklung eines Systems, das auf Basis einer Point Of Interest-Datenbank eine automatische Freizeitplanung durchführt. Nach Auswahl eines Tagesthemas wie z. B. "Tag in der Natur" oder "Tag zu zweit", entwirft das System einen thematisch passenden Tagesplan mit mehreren Etappen in zeitlicher Abfolge. Zunächst wird das entwickelte System grob vorgestellt, gefolgt von einem Überblick über ähnliche aktuelle Forschungen. Im Anschluss folgen eine kurze Einführung in den Mashup-Begriff sowie eine Beschreibung der vom System genutzten Dienste. Schließlich werden die Komponenten des Systems erklärt und ein Ausblick in die Zukunft der POI-Dienste und -Suchmaschinen gegeben.
-
Agosto, D.E.; Abbas, J.; Naughton, R.: Relationships and social rules : teens' social network and other ICT selection practices (2012)
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- Abstract
- The issue of how teens choose social networks and information communication technologies (ICT's) for personal communication is complex. This study focused on describing how U.S. teens from a highly technological suburban high school select ICT's for personal communication purposes. Two research questions guided the study: (a) What factors influence high school seniors' selection of online social networks and other ICT's for everyday communication? (b) How can social network theory (SNT) help to explain how teens select online social networks and other ICT's for everyday communication purposes? Using focus groups, a purposive sample of 45 teens were asked to discuss (a) their preferred methods for communicating with friends and family and why, (b) the reasons why they chose to engage (or not to engage) in online social networking, (c) how they selected ICT's for social networking and other communication purposes, and (d) how they decided whom to accept as online "friends." Findings indicated that many factors influenced participants' ICT selection practices including six major categories of selection factors: relationship factors, information/communication factors, social factors, systems factors, self-protection factors, and recipient factors. SNT was also helpful in explaining how "friendship" was a major determining factor in their communication media and platform choices.
-
Social Media und Web Science : das Web als Lebensraum, Düsseldorf, 22. - 23. März 2012, Proceedings, hrsg. von Marlies Ockenfeld, Isabella Peters und Katrin Weller. DGI, Frankfurt am Main 2012 (2012)
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- Editor
- Ockenfeld, M., I. Peters u. K. Weller
-
Prichard, J.; Spiranovic, C.; Watters, P.; Lueg, C.: Young people, child pornography, and subcultural norms on the Internet (2013)
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- Abstract
- Literature to date has treated as distinct two issues (a) the influence of pornography on young people and (b) the growth of Internet child pornography, also called child exploitation material (CEM). This article discusses how young people might interact with, and be affected by, CEM. The article first considers the effect of CEM on young victims abused to generate the material. It then explains the paucity of data regarding the prevalence with which young people view CEM online, inadvertently or deliberately. New analyses are presented from a 2010 study of search terms entered on an internationally popular peer-to-peer website, isoHunt. Over 91 days, 162 persistent search terms were recorded. Most of these related to file sharing of popular movies, music, and so forth. Thirty-six search terms were categorized as specific to a youth market and perhaps a child market. Additionally, 4 deviant, and persistent search terms were found, 3 relating to CEM and the fourth to bestiality. The article discusses whether the existence of CEM on a mainstream website, combined with online subcultural influences, may normalize the material for some youth and increase the risk of onset (first deliberate viewing). Among other things, the article proposes that future research examines the relationship between onset and sex offending by youth.
-
Hartmann, B.: Ab ins MoMA : zum virtuellen Museumsgang (2011)
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- Date
- 3. 5.1997 8:44:22
-
Egbert, J.; Biber, D.; Davies, M.: Developing a bottom-up, user-based method of web register classification (2015)
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- Date
- 4. 8.2015 19:22:04
-
Evans, H.K.; Ovalle, J.; Green, S.: Rockin' robins : do congresswomen rule the roost in the Twittersphere? (2016)
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- Date
- 22. 1.2016 11:51:19
-
Arbelaitz, O.; Martínez-Otzeta. J.M.; Muguerza, J.: User modeling in a social network for cognitively disabled people (2016)
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- Date
- 22. 1.2016 12:02:26
-
Bhattacharya, S.; Yang, C.; Srinivasan, P.; Boynton, B.: Perceptions of presidential candidates' personalities in twitter (2016)
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- Date
- 22. 1.2016 11:25:47
-
Dalip, D.H.; Gonçalves, M.A.; Cristo, M.; Calado, P.: ¬A general multiview framework for assessing the quality of collaboratively created content on web 2.0 (2017)
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- Abstract
- User-generated content is one of the most interesting phenomena of current published media, as users are now able not only to consume, but also to produce content in a much faster and easier manner. However, such freedom also carries concerns about content quality. In this work, we propose an automatic framework to assess the quality of collaboratively generated content. Quality is addressed as a multidimensional concept, modeled as a combination of independent assessments, each regarding different quality dimensions. Accordingly, we adopt a machine-learning (ML)-based multiview approach to assess content quality. We perform a thorough analysis of our framework on two different domains: Questions and Answer Forums and Collaborative Encyclopedias. This allowed us to better understand when and how the proposed multiview approach is able to provide accurate quality assessments. Our main contributions are: (a) a general ML multiview framework that takes advantage of different views of quality indicators; (b) the improvement (up to 30%) in quality assessment over the best state-of-the-art baseline methods; (c) a thorough feature and view analysis regarding impact, informativeness, and correlation, based on two distinct domains.
- Date
- 16.11.2017 13:04:22
-
Internet Privacy : eine multidisziplinäre Bestandsaufnahme / a multidisciplinary analysis: acatech STUDIE (2012)
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- Content
- Vgl. unter: http://www.acatech.de/fileadmin/user_upload/Baumstruktur_nach_Website/Acatech/root/de/Publikationen/Projektberichte/acatech_STUDIE_Internet_Privacy_WEB.pdf. Enthält Auszüge aus: Capurro, R., M, Eldred u. D. Nagel: Digital Whoness: Identity, Privacy and Freedom in the Cyberworld. Frankfurt 2013. Vgl. http://www.capurro.de/floridi.html.
- Editor
- Buchmann, J.
-
Schmidt, E.; Cohen, J.: ¬Die Vernetzung der Welt : ein Blick in unsere Zukunft (2013)
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- Footnote
- Pressestimmen - In diesem faszinierenden Buch machen Eric Schmidt und Jared Cohen von ihrer einzigartigen Sachkenntnis Gebrauch, um uns eine Zukunft auszumalen, in der die Einkommen steigen, die Partizipation zunimmt und ein echter Sinn für Gemeinschaft entsteht - vorausgesetzt, wir treffen heute die richtigen Entscheidungen. (Bill Clinton) - Dieses Buch erklärt sowohl, was die neue Welt ausmacht, die das Internet schafft, als auch die Herausforderungen, die sie mit sich bringt. Niemand könnte das besser als Eric Schmidt und Jared Cohen. (Tony Blair) - Selbst wer nicht alle Schlussfolgerungen teilen mag, wird viel von diesem anregenden Buch lernen. (Henry A. Kissinger) - Auf dieses Buch habe ich gewartet: Eine prägnante und überzeugende Darstellung der Auswirkungen, die Technologie auf Krieg und Frieden, Freiheit und Diplomatie hat ... - Eine unverzichtbare Lektüre. (Madeleine Albright) -Dies ist das wichtigste - und faszinierendste - Buch, das bislang über die Auswirkungen des Digitalzeitalters auf unsere Welt geschrieben wurde. (Walter Isaacson) - «Die Vernetzung der Welt» verbindet auf faszinierende Weise Konzepte und Einblicke darüber, wie die sich die virtuelle Welt und die internationale Staatenordnung durchkreuzen. (Robert B. Zoellick) - Kaum jemand auf der Welt beschäftigt sich mehr damit, sich das neue Digitalzeitalter auszumalen - und es zu gestalten - als Eric Schmidt und Jared Cohen. Mit diesem Buch werfen sie einen Blick in ihre Kristallkugel und laden uns ein, ihnen dabei über die Schulter zu schauen. (Michael Bloomberg) - Dieses Buch ist die aufschlussreichste Erkundung unserer Zukunft, die ich je gelesen habe. Ich konnte es gar nicht mehr weglegen. (Sir Richard Branson) - «Die Vernetzung der Welt» ist Pflichtlektüre für alle, die das Ausmaß der digitalen Revolution wirklich verstehen wollen. (General Michael Hayden - ehemaliger Direktor der CIA) - Trotz der Herkunft der Autoren verbreitet «Die Vernetzung der Welt» keine Silicon-Valley-Propaganda ... Und was noch wichtiger ist: Es hebt die Debatte über Technologie auf ein höheres Niveau - weg vom banalen Streit über den Nutzen von Dating-Apps, hin zu allgemeineren Frage nach der gegenseitigen Beeinflussung von Technologie und Macht. (The Economist) - Dieses Buch ist deutlich mehr als nur Science Fiction. Es diskutiert hellsichtig und offen die entscheidenden Fragen, denen wir uns schon jetzt stellen müssen. Wer die Welt der Zukunft verstehen will, sollte es daher unbedingt lesen. (NDR Kultur)
-
Griesbaum, J.; Mahrholz, N.; Kiedrowski, K. von Löwe; Rittberger, M.: Knowledge generation in online forums : a case study in the German educational domain (2015)
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- Date
- 20. 1.2015 18:30:22
-
Pluye, P.; El Sherif, R.; Granikov, V.; Hong, Q.N.; Vedel, I.; Barbosa Galvao, M.C.; Frati, F.E.Y.; Desroches, S.; Repchinsky, C.; Rihoux, B.; Légaré, F.; Burnand, B.; Bujold, M.; Grad, R.: Health outcomes of online consumer health information : a systematic mixed studies review with framework synthesis (2019)
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- Abstract
- The Internet has become the first source of consumer health information. Most theoretical and empirical studies are centered on information needs and seeking, rather than on information outcomes. This review's purpose is to explore and explain health outcomes of Online Consumer Health Information (OCHI) in primary care. A participatory systematic mixed studies review with a framework synthesis was undertaken. Starting from an initial conceptual framework, our specific objectives were to (a) identify types of OCHI outcomes in primary care, (b) identify factors associated with these outcomes, and (c) integrate these factors and outcomes into a comprehensive revised framework combining an information theory and a psychosocial theory of behavior. The results of 65 included studies were synthesized using a qualitative thematic data analysis. The themes derived from the literature underwent a harmonization process that produced a comprehensive typology of OCHI outcomes. The revised conceptual framework specifies four individual and one organizational level of OCHI outcomes, while including factors such as consumers' information needs and four interdependent contextual factors. It contributes to theoretical knowledge about OCHI health outcomes, and informs future research, information assessment methods, and tools to help consumers find and use health information.
-
Kaba, B.; Touré, B.: Understanding information and communication technology behavioral intention to use : applying the UTAUT model to social networking site adoption by young people in a least developed country (2014)
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Nowag, B.: Query by Humming : ein Vergleich von Suchmaschinen zur Melodie-Erkennung (2010)
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