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Date

14. 8.2002 11:47:22

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Abstract

Google News and other newsbots have automated the process of news selection, providing Internet users with a virtually limitless array of news and public information dynamically culled from thousands of news organizations all over the world. In order to help users cope with the resultant overload of information, news leads are typically accompanied by three cues: (a) the name of the primary source from which the headline and lead were borrowed, (b) the time elapsed since the story broke, and (c) the number of related articles written about this story by other news organizations tracked by the newsbot. This article investigates the psychological significance of these cues by positing that the information scent transmitted by each cue triggers a distinct heuristic (mental shortcut) that tends to influence online users' perceptions of a given news item, with implications for their assessment of the item's relevance to their information needs and interests. A large 2 x 3 x 6 withinsubjects online experiment (N = 523) systematically varied two levels of the source credibility cue, three levels of the upload recency cue and six levels of the number-ofrelated-articles cue in an effort to investigate their effects upon perceived message credibility, newsworthiness, and likelihood of clicking on the news lead. Results showed evidence for source primacy effect, and some indication of a cue-cumulation effect when source credibility is low. Findings are discussed in the context of machine and bandwagon heuristics.

Date

7. 3.2007 16:22:24

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Date

22. 3.2009 12:51:47

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Content

Enthält die Beiträge: Rötzer, F.: Das globale Gehirn. Eine Leitbotschaft - Die Google-Gesellschaft. Vom digitalen Wandel des Wissens Feuilleton und Wissenschaft haben viele von der Zeit geprägte Bindestrich-Gesellschaften ausgerufen: Risiko-, Erlebnis- und Wissens-Gesellschaft sind nur drei Beispiele. Die Google-Gesellschaft reiht sich hier nicht ein; erklärt die Welt nicht anhand eines zentralen Prinzips. Die Metapher dient stattdessen einer Bestandsaufnahme: Wie gehen wir mit der zentralen Ressource Wissen um? Sie spürt den bisherigen Veränderungen nach und schaut auf die kommenden: Was verändert sich im Verhältnis von Wissen und Gesellschaft? Schetsche, M., K. Lehmann u. T. Krug: Die Google-Gesellschaft. Zehn Prinzipien der neuen Wissensordnung Lehmann, K.: Der lange Weg zur Wissensgesellschaft Plass, C.: Das große Vergessen. Datenschwund im digitalen Zeitalter Döring, N., C. Dietmar u. A. Hein: Information überall. Mobile Wissenskommunikation Lehmann, K.: Blackbox Suchmaschine. Politik für Neue Medien. Interview mit Marcel Machill und Wolfgang Sander-Beuermann - Neue Wissenswelten. Megamaschine Wissen nannte Florian Rötzer das Internet zur Expo 2000. Als Blackbox produziert, transformiert und transportiert das weltumspannende Internet Wissen auf vielfältige Weise. Das Kapitel »Neue Wissenswelten« fragt nach den maschinellen Aspekten ebenso wie nach sozialen Prozessen im Umgang mit Wissen. Was sind die neuen Möglichkeiten, wenn Wissen digital und weltweit verfügbar wird? Degele, N.: Vom Suchen und Finden Neue Kompetenzen im Internet Patzwaldt, K.: Suchmaschinenlandschaften Diedrich, H.: Wissensvernetzung. Chancen neuer Prozesse Röll, M.: »Am Anfang war das Wort«. Weblogs, Google & Geschäftsbeziehungen Batke, J.-M.: Wie sich Melodien finden lassen - Weltbilder virtuell. Politik und Gegenöffentlichkeit Regierungen, Parteien und Verbände organisieren ihre Kommunikationsarbeit wie selbstverständlich auch über das Internet. Neue Aktionsformen stehen dabei neben klassischen aus den OfflineMedien entlehnten Text- und Kommunikationsstrukturen. Welche Akteure nutzen welche Kanäle? Wie wird politisches Wissen auf eine neue Weise transportiert? Beckedahl, M.: Online-Kampagnen. Das Netz als Forum politischer Öffentlichkeit Schetsche, M.: Die ergoogelte Wirklichkeit. Verschwörungstheorien und das Internet Lenhard, M.: Zu Besuch bei Putin und Bush. Das virtuelle Amtszimmer für Kinder Böhm, H.: Gegenöffentlichkeit im Internet. Indymedia.org Arns, C.: Fallstricke Online. Über die eigenen Worte gestolpert
- E-Rights. Bürgerrechte in der Informationsgesellschaft Eine breite Front neuer Bürgerrechtsbewegungen versucht die neu entstandenen Freiräume im Netz gegen staatliche und ökonomische Kontrollversuche zu verteidigen. Das Kapitel skizziert den Verlauf dieser Front, markiert die Teilnehmer und sagt, mit welchem rasanten Tempo staatliche Akteure Weichenstellungen für das kommende 21. Jahrhundert vornehmen. Wer entscheidet in Zukunft über den Umgang mit Wissen, Copyright und Zensur? Welche Bürgerrechte stehen zur Disposition? Schulzki-Haddouti, C.: Bürgerrechte im Netz. Zwischen Informationsfreiheit und Datenschutz Lüttcher, B.: Eine kurze Geschichte Freier Software. Interview mit Oliver Zendel Kuhlen, R.: Creative Commons. Im Interesse der Kreativen und der Innovation Charta der Bürgerrechte. Für eine nachhaltige Wissensgesellschaft. Version 3.0 - Wa(h)re Information. Die Ökonomie des Wissens Wissensmanagement und Data-Mining versprechen Unternehmen die aktive Nutzung brachliegender Ressourcen. Wissen gilt zumindest in den ökonomischen Diskursen als grundlegender Produktionsfaktor. Wie sieht es hier in der Praxis aus? Unternehmen schauen aber nicht nur nach innen, sondern auch über den Tellerrand: Die (legale und illegale) Beschaffung von Informationen über den Markt, die Wettbewerber und das Image der eigenen Firma wird zur täglichen Aufgabe. Domsalla, M.: Wissensmanagement und neue Wirtschaftsprozesse Speck, H. u. F.P. Thiele: Goggle, Gossip & PR-ostitution. Das Geschäft einer Suchmaschine Patzwaldt, K.: Google Inside Schilp, H.: Content-Broking. Handel mit digitalen Inhalten - Orientierungmaschinen. Massenmedien online Klassische Medien wie Fernsehen und Zeitung prägen bis heute das Bild des Alltags. Sie schaffen gemeinsames Wissen, transportieren kollektive Wertvorstellungen und neue Wissensmuster. Mit dem Gang ins Internet wagen sich die Massenmedien auf ein fremdes Terrain. Viele ehrgeizige Projekte können als gescheitert gelten, andere haben sich wider Erwarten durchgesetzt. Was ist wirklich neu an Online-Medien? Und welche Rückwirkungen hat der Siegeszug des Internet auf die traditionellen Printmedien? Neuberger, C.: Das Ende des »Gatekeeper«-Zeitalters Roth, J.: Der digitale Zeitungsmarkt Lohmöller, B.: Blogs sind? Blogs sind! Lehmann, K.: Neuer Wein in neuen Schläuchen. 10 Jahre Online-Journalismus. Interview mit Markus Deggerich Wegner, J.: Die Googleisierung der Medien
- Gut aufgehoben? Virtuelle Wissensnetze Das Internet mit seinen niedrigen Zugangsbarrieren, den vielfältigen Kommunikationsmodi und der relativen Anonymität bietet sich als Medium zur professionellen Beratung ebenso an wie für Selbsthilfegruppen. Welche Erfahrungen haben Praktiker in der Beratung von Hilfesuchenden machen können, welche Informationen und Ratschläge lassen sich über das Netz transportieren? Aber auch zu unproblematischeren Themen entwickeln sich Gemeinschaften, Wissensbörsen und Ratschläge-Foren. Hier stehen Expertenportale mit anscheinend vertrauenswürdigem Wissen gleichberechtigt neben Laienwissen. Risau, P. u. M. Schumacher: Online-Beratung im Netz. Hilfe oder Scharlatanerie? Schlieker, C. u. K. Lehmann: Verknüpft, Verknüpfter, Wikis Klein, A.: »Ihr Seid Voll Col«. Online-Beratung für Jugendliche Neller, M.: Geburt eines Kritikers. Wie Kunden zu Rezensenten werden Döring, N. u. S. Pöschl: Wissenskommunikation in Chats - Von der Information zum Wissen. Digitale Lernprozesse Nicht allein der Computer, auch das Medium Internet ist dabei Aus- und Weiterbildung zu verändern. In Zeiten, in denen Bildung per se in der Krise steckt, versuchen verschiedene Akteure daher Bildung zu digitalisieren: unter Geld- und Zeitdruck die Unternehmen; unter Rechtfertigungsdruck die Universitäten. Viele Chancen stecken in den neuen Möglichkeiten, viele Erfahrungen gilt es aber auch noch zu machen. Im Kapitel »Digitale Lernprozesse« werden Visionen und tatsächliche Schritte in Richtung digitaler und medial vermittelter Bildung beschrieben. Hoffmeister, K.: Von der Überflüssigkeit eines Begriffs. Bildung mit E-Learning Wischer, B.: Blühende Lernwelten. E-Learning in der Hochschullehre Müller, D.: Zwischen Realem und Virtuellem. Mixed-Reality in der technischen Bildung Payome, T.: Berufen zum Teletutor? Interview mit Kerstin Ackermann-Stommel - The New Frontier. Wissenschaft in einer neuen Welt Wissenschaft an Universitäten und Abteilungen für Forschung & Entwicklung in Unternehmen sind die Orte, an denen neues Wissen erzeugt wird. Erlangt werden die Erkenntnisse dabei zunehmend in globalen Zusammenhängen und Netzwerken. Das Internet bildet hier die kommunikative Grundlage und greift tief in die tradierten Strukturen der Wissensproduktion ein. Das Kapitel fragt nach den Herausforderungen und Chancen, die sich für Wissenschaftler durch die Netzwerkmedien ergeben. Thomas, N.: Wissenschaft in der digitalen Welt Schmidt, J.: Online-Forschung. Wissen über das Netz Schelske, A. u. P. Wippermann: Trendforschung im Netz der Zeichen Passek, O.: Open Access. Freie Erkenntnis für freie Wirtschaft Berliner Erklärung über offenen Zugang zu wissenschaftlichem Wissen Plass, C.: Warum wir Online-Zeitschriften brauchen. Interview mit Katja Mruck - Bilder-Wissen. Die Macht der Oberflächen Was sozial als ästhetisch und was als erkenntnisträchtig gilt, wird durch das technische Bild ebenso neu beantwortet wie die Frage, was als »real« zu gelten hat. Der Revolution bildhafter Darstetlungs- und Wahrnehmungsweisen geht dieses Kapitel nach. Richard, B.: Bilderkrieg und Terrorismus Kamerbeek, I. u. M. Schetsche: Webism Movement. Die Netzkunst des neuen Jahrhunderts Moebius, S.: Die Wiederverzauberung der Welt in der Google-Gesellschaft Schodder, W.: Die »zufällige Mitrealität« des Computers. Interview mit Frieder Nake - Schlusswort Kuhlen, R.: Macht Google autonom? Zur Ambivalenz informationeller Autonomie

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Date

22. 3.2001 13:19:39

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Date

17. 7.1996 9:33:22

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Date

17. 7.1996 9:33:22

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Date

3. 5.1997 8:44:22

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Footnote

Bezugnahme auf: Lossau, N.: Suchmaschinentechnologie und Digitale Bibliotheken: Bibliotheken müssen das wissenschaftliche Internet erschließen. In: Zeitschrift für Bibliothekswesen und Bibliographie. 51(2004) H.5/6, S.284-294.

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Abstract

In this paper we report on the development and use of CoFIND (Collaborative Filter In N Dimensions), a web-based collaborative bookmark engine, designed as part of a self-organising learning environment to generate a list of useful and relevant learning resources. Users of CoFfND can add pointers to resources and rate them according to two types of category, 'topics' and 'qualities'. Along with the links and descriptions of the resources themselves, both topics and qualities are also entered by users, thus generating a resource-base and collective categorisation scheme based on the needs and wishes of its participants. A topic is analogous to a traditional category whereby any object can be considered to be in the set or out of it. Examples of topics might include 'animals', 'computing', 'travel' and so on. Qualities, on the other hand are the things that users value in a resource, and most of them are (in English at any rate) adjectives or adjectival descriptive phrases. It is always possible to say of a quality that a given resource is more or less so. Examples of qualities might include 'good for beginners', 'amusing', 'colourful', 'turgid' and so on. It is the qualities that provide the nth dimension of CoFIND, allowing much subtler ratings than typical collaborative filtering systems, which tend to rate resources according to a simple good/bad or useful/useless scale. CoFIND thus dynamically accommodates changing needs in learners, essential because the essence of learning is change. In use, the user enters a number of qualities and/or topics that interest them. Resources are returned in a list ordered according to the closeness of match to the required topics and qualities, weighted by the number of users who have categorised or rated a particular resource. The more a topic or quality is used to categorise different resources, the more prominent its position in the list of selectable topics or categories. Not only do less popular qualities sink to the bottom of this list, they can also fall off it altogether, in a process analogous to a Darwinian concept of evolution, where species of quality or topic fight each other for votes and space on the list and topics and qualities are honed so that only the most useful survive. The system is designed to teeter on the 'edge of chaos', thus allowing clear species to develop without falling into chaotic disorder or stagnant order. The paper reports on some ongoing experiments using the CoFIND system to support a number of learning environments within the University of Brighton. In particular, we report on a cut-down form used to help teach a course on Human-Computer Interaction, whereby students not only rate screen designs but collaboratively create the qualities used to rate those resources. Mention is made of plans to use the system to establish metadata schema for courseware component design, a picture database and to help facilitate small group research. The paper concludes by analysing early results, indicating that the approach provides a promising way to automatically elicit consensus on issues of categorisation and rating, allowing evolution instead of the 'experts' to decide classification criteria. However, several problems need to be overcome, including difficulties encouraging use of the system (especially when the resource base is not highly populated) and problems tuning the rate of evolution in order to maintain a balance between stability and disorder

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Date

20. 4.2002 17:30:22

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Date

27.11.2005 18:04:22

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Abstract

This study applied Communication Privacy Management (CPM) theory to the context of blogging and developed a validated, theory-based measure of blogging privacy management. Across three studies, 823 college student bloggers completed an online survey. In study one (n = 176), exploratory and confirmatory factor analysis techniques tested four potential models. Study two (n = 291) cross-validated the final factor structure obtained in the fourth model with a separate sample. Study three (n = 356) tested the discriminant and predictive validity of the measure by comparing it to the self-consciousness scale. The Blogging Privacy Management Measure (BPMM) is a multidimensional, valid, and reliable construct. Future research could explore the influence of family values about privacy on blogging privacy rule management.

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Date

21. 4.2002 10:22:31

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Date

18. 7.2005 11:07:22

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Editor

Gonzalo, J. et al.