-
Hu, D.; Kaza, S.; Chen, H.: Identifying significant facilitators of dark network evolution (2009)
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- Abstract
- Social networks evolve over time with the addition and removal of nodes and links to survive and thrive in their environments. Previous studies have shown that the link-formation process in such networks is influenced by a set of facilitators. However, there have been few empirical evaluations to determine the important facilitators. In a research partnership with law enforcement agencies, we used dynamic social-network analysis methods to examine several plausible facilitators of co-offending relationships in a large-scale narcotics network consisting of individuals and vehicles. Multivariate Cox regression and a two-proportion z-test on cyclic and focal closures of the network showed that mutual acquaintance and vehicle affiliations were significant facilitators for the network under study. We also found that homophily with respect to age, race, and gender were not good predictors of future link formation in these networks. Moreover, we examined the social causes and policy implications for the significance and insignificance of various facilitators including common jails on future co-offending. These findings provide important insights into the link-formation processes and the resilience of social networks. In addition, they can be used to aid in the prediction of future links. The methods described can also help in understanding the driving forces behind the formation and evolution of social networks facilitated by mobile and Web technologies.
- Date
- 22. 3.2009 18:50:30
-
Machovec, G.S.: Brief Internet and NREN glossary : part 1 (A-L); part 2 (M-Z) (1993)
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-
Sardar, Z.; Ravetz, J.R.: Cyberfutures : cultures and politics on the information superhighway (1996)
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-
Nanfito, N.: ¬The indexed Web : engineering tools for cataloging, storing and delivering Web based documents (1999)
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- Date
- 5. 8.2001 12:22:47
- Source
- Information outlook. 3(1999) no.2, S.18-22
-
Davis, E.; Stone, J.: From A to Z : automated catalogue to Web OPAC and Z39.50 (1998)
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-
¬The Internet searcher's handbook : locating information, people and software (1996)
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- Footnote
- Rez. in: Online 20(1996) no.4, S.94 (J.A. Copler); College and research libraries 57(1996) no.4, S.394-395. (B.A. Burg); Managing information 3(1996) nos.7/8, S.47 (Z. Woodley); Special libraries 87(1996) no.3, S.237-238 (M.A. McFarland); JASIS 49(1998) no.6, S.567 (V. Jaffe)
-
Soubusta, S.: On click fraud (2008)
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- Abstract
- Über Klickbetrug Internetwerbung wird immer wichtiger. Wie in jeder Wachstumsbranche versuchen auch hier Kriminelle von diesem Wachstum zu profitieren. Dies ist durch die Manipulation von Pay-Per-Click (PPC) Werbeanzeigen mithilfe künstlich produzierter Klicks möglich - eine Vorgehensweise, die als Klickbetrug (Click Fraud) bekannt ist. Klickbetrug ist nicht schwierig und könnte daher die Existenz von Firmen wie Google bedrohen. Zur Zeit scheint es keine Möglichkeit zu geben, Klickbetrug zu entdecken oder zu verhindern. Man kann Klickbetrug jedoch vermeiden, indem man PPC Werbung durch eine andere Berechnungsgrundlage, wie z. B. Cost-Per-Action, ersetzt.
-
Jansen, B.J.; Liu, Z.; Simon, Z.: ¬The effect of ad rank on the performance of keyword advertising campaigns (2013)
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-
Li, D.; Luo, Z.; Ding, Y.; Tang, J.; Sun, G.G.-Z.; Dai, X.; Du, J.; Zhang, J.; Kong, S.: User-level microblogging recommendation incorporating social influence (2017)
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-
Zhang, L.; Gou, Z.; Fang, Z.; Sivertsen, G.; Huang, Y.: Who tweets scientific publications? : a large-scale study of tweeting audiences in all areas of research (2023)
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-
Vocabulary as a central concept in digital libraries : interdisciplinary concepts, challenges, and opportunities : proceedings of the Third International Conference on Conceptions of Library and Information Science (COLIS3), Dubrovnik, Croatia, 23-26 May 1999 (1999)
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- Content
- Enthält u.a. die Beiträge: Pharo, N.: Web information search strategies: a model for classifying Web interaction; Wang, Z., L.L. Hill u. T.R. Smith: Alexandria Digital Library metadata creator based an extensible markup language; Reid, J.: A new, task-oriented paradigm for information retrieval: implications for evaluation of information retrieval systems; Ornager, S.: Image archives in newspaper editorial offices: a service activity; Ruthven, I., M. Lalmas: Selective relevance feedback using term characteristics
-
Kong, S.; Ye, F.; Feng, L.; Zhao, Z.: Towards the prediction problems of bursting hashtags on Twitter (2015)
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-
Wilson, D.N.: Citing electronic sites (1996)
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- Source
- Audiovisual librarian. 22(1996) no.2, S.108-110
-
Notess, G.R.: ¬The internet (1997)
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- Source
- Encyclopedia of library and information science. Vol.59, [=Suppl.22]
-
Ghilardi, F.J.M.: ¬The information center of the future : the professional's role (1994)
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- Date
- 27.12.2015 18:22:38
-
Hedden, H.: Indexing specialities : Web Sites (2007)
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- Footnote
- Rez. in: IWP 60(2009) H.4, S.245 (J. Fassbender): "Heather Heddens Buch über Website-Indexing gehört zur Indexing Specialties-Serie, die vom Information Today-Verlag in Zusammenarbeit mit der American Society of Indexers herausgegeben wird. Der Bereich Website-Indexing befasst sich mit der Index-Erstellung und -Pflege für Websites und Intranets - ähnlich zu Registern für Printpublikationen. Ein Website-Index hat oft die Bezeichnung Site Index oder A-Z Index und sollte zudem nicht mit Site Maps verwechselt werden. Das Buch füllt gerade auch hierzulande eine Riesenlücke aus: Nach Einschätzung des Deutschen Netzwerks der Indexer (DNI) ist das Wissensdefizit über Website-Indexing in der deutschen Web- und IT-Szene enorm. Die Autorin beginnt in diesem Sinne auch gleich mit zwei Kernaussagen des Buches: 1. Website-Indexing sei deshalb in der Web-Szene nicht so verbreitet, weil die Kenntnisse der Methoden zur Index-Erstellung fehlen und/oder die nötigen Tools unbekannt sind. 2. Ein guter Index stelle für viele Sites die effektivste Suchmethode dar - trotz der Konkurrenz zu Navigationsmenüs und Sucheingabe. Verdeutlicht werden sodann die Unterschiede zu Print-Registern, der bedeutendste betrifft die Locators (Fundstellen), die in der Regel keine Seitenangaben, sondern Links sind.
Zwei Kapitel behandeln die Vorgehensweise bei der Index-Erstellung sowie die vielfältigen Aspekte der Index-Gestaltung. Anhand vieler Beispiele werden die Besonderheiten, aber auch Parallelen zu Printregistern beleuchtet, z. B. bestehende und neu einzufügende Anker, Berücksichtigung verschiedener Seiten-Arten und -Formate, Umgang mit mehreren Locatorn pro Eintrag, Navigation innerhalb des Site Indexes. Das Schlusskapitel widmet sich den Business-Aspekten des Website-Indexing, auch aus Freelancer-Sicht. Erläutert werden z. B., welche Arten von Websites in Frage kommen und wie die Fortführung der Indexierung berücksichtigt wird. Der Index des Buches ist insgesamt von guter Qualität, wie man es von den Indexing-Büchern des Information Today-Verlages gewöhnt ist - ja sogar von exzellenter Qualität im Vergleich zu vielen unzureichenden Registern deutschsprachiger Fachbücher. Mit fünf Prozent Umfang im Verhältnis zur Anzahl der inhaltlichen Seiten hat der Index eine gute Standardlänge. Wesentliche Indexierungstechniken, wie Untereinträge, siehe- und siehe auch-Querverweise, vollständige Seitenbereichsangaben (d. h. ohne die wenig hilfreichen ff.-Angaben) kommen zum Einsatz. Einige Untereinträge tauchen allerdings nicht auch als Haupteintrag auf; so findet man z. B. "indexing rates" nur als Untereintrag des Haupteintrages "Business and index market". Die typographische und satztechnische Qualität des Registers ist ebenfalls gut, z. B. unterschiedliche Einrückungen von Untereinträgen und deren Zeilenumbrüchen. Insgesamt gesehen ist Indexing Specialties: Web Sites ein sehr empfehlenswertes Buch, das ein wichtiges (und bisher vernachlässigtes) Thema abdeckt."
-
Rowley, J.: Current awareness in an electronic age (1998)
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- Date
- 22. 2.1999 17:50:37
- Source
- Online and CD-ROM review. 22(1998) no.4, S.277-279
-
Orenstein, R.M.: Fulltext sources online (1997)
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- Footnote
- Rez. in: Online 22(1998) no.1, S.93-94 (J. Alita)
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Locke, C.: ¬The future Internet (1994)
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- Source
- Internet world. 5(1994) no.6, S.22-23
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Tilman, H.N.: Internet tools of the profession : a guide for information professionals (1997)
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- Footnote
- Rez. in: Online 22(1998) no.2, S.92 (C.A. Murchie)
