-
Ku, L.-W.; Ho, H.-W.; Chen, H.-H.: Opinion mining and relationship discovery using CopeOpi opinion analysis system (2009)
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- Abstract
- We present CopeOpi, an opinion-analysis system, which extracts from the Web opinions about specific targets, summarizes the polarity and strength of these opinions, and tracks opinion variations over time. Objects that yield similar opinion tendencies over a certain time period may be correlated due to the latent causal events. CopeOpi discovers relationships among objects based on their opinion-tracking plots and collocations. Event bursts are detected from the tracking plots, and the strength of opinion relationships is determined by the coverage of these plots. To evaluate opinion mining, we use the NTCIR corpus annotated with opinion information at sentence and document levels. CopeOpi achieves sentence- and document-level f-measures of 62% and 74%. For relationship discovery, we collected 1.3M economics-related documents from 93 Web sources over 22 months, and analyzed collocation-based, opinion-based, and hybrid models. We consider as correlated company pairs that demonstrate similar stock-price variations, and selected these as the gold standard for evaluation. Results show that opinion-based and collocation-based models complement each other, and that integrated models perform the best. The top 25, 50, and 100 pairs discovered achieve precision rates of 1, 0.92, and 0.79, respectively.
-
Weilenmann, A.-K.: Informationsdienstleistungen für virtuelle Universitäten (2000)
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- Abstract
- Die sich rasant verändernde Informationslandschaft erfordert ein Umdenken in den verschiedenen Informations- und Dokumentationsstellen; es gibt kaum noch einen Arbeitsbereich, der nicht stetigen Umwälzungen unterworfen ist. Besonders in der Auskunftstätigkeit sehen wir uns mit neuen Herausforderungen konfrontiert, um der zunehmenden Disintermediation zu begegnen. Unseren Kunden stehen übers Internet vielfältige Wege zur Verfügung, um sich die Informationen selbst zu beschaffen, was jedoch meist dazu führt, dass sie sich in den Weiten des World Wide Web verlieren. Die Kompetenz und sachkundige Navigationshilfe der Informations- und Dokumentationsspezialisten wird demnach je länger, umso mehr gefordert sein; es verändert sich lediglich die Art und Weise des Auskunftgebens: ,Librarians need to more formally incorporate this awesome information power into a new model of service provision so that they may position themselves to meet the needs of reference services in the next century". Vor diesem Hintergrund drängt sich nicht nur ein anderes Vorgehen beim Kundeninterview auf, sondern es stellt sich ebenfalls die Frage, wie man die Informations- und Kommunikationstechnologien (l+K-Technologien) sinnvoll einsetzen kann, sowohl für den konventionellen als auch für den virtuellen Auskunftsdienst. Das zunehmende Aufkommen virtueller Universitäten verlangt nach neuen innovativen Ideen, um den potenziellen Studenten angemessene Dienstleistungen zu bieten, die es ihnen erlauben, das ganze Spektrum der l+K-Technologien voll auszuschöpfen. Virtuelle Auskunftsdienste bzw. "virtual reference desks" sind immer häufiger beliebte Themen in der Fachpresse und werden in Zukunft als entscheidender Wettbewerbsfaktor gelten. Wie kann man die vorhandenen Informationen so bündeln und kanalisieren, dass unsere Kunden so rasch und so effizient als möglich zu den von ihnen nachgefragten Inhalten kommen? Ein kurzer Überblick über den heutigen Entwicklungsstand der "virtual reference desks" zeigt auf, dass vor allem die "Internet Public Library" (IPL) auf diesem Gebiet Pionierarbeit geleistet hat, dass ihre Angebote jedoch nicht über E-Mail-Auskunft hinausgehen. Anhand eines dreistufigen Auskunftsmodells werden fortschrittliche Möglichkeiten aufgezeigt, wie man Fernauskunft unter Einbezug aller Internetdienste (E-Mail, Newsgroups, Chat, WWW) abwickeln und gestalten könnte, wobei vor allem technische Ansätze berücksichtigt werden, das ganze Umfeld einer virtuellen Universität jedoch nicht außer Acht gelassen wird.
- Source
- Information und Öffentlichkeit: 1. Gemeinsamer Kongress der Bundesvereinigung Deutscher Bibliotheksverbände e.V. (BDB) und der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V. (DGI), Leipzig, 20.-23.3.2000. Zugleich 90. Deutscher Bibliothekartag, 52. Jahrestagung der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V. (DGI). Hrsg.: G. Ruppelt u. H. Neißer
-
Brochard, C.; Ruck, V.: Internet : das sechste Medium? (2000)
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- Location
- L
- Source
- nfd Information - Wissenschaft und Praxis. 51(2000) H.1, S.19-26
-
Härkönen, S.: Digital Reference Konsortien : Kooperative Online-Auskunft in Bibliotheken (2007)
0.03
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- Date
- 22. 8.2009 19:50:27
- Footnote
- Rez. in: ZfBB 56(2009) H.3/4, S. 245-246 (U. Scholle)
-
Ulrich, P.S.: Collaborative Digital Reference Service : Weltweites Projekt (2001)
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- Date
- 20. 4.2002 17:30:22
- Source
- Bibliotheksdienst. 35(2001) H.2, S.217-218
-
Academic research on the Internet : options for scholars & librarians (2001)
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- Editor
- Laurence, H. u. W. Miller
- Series
- Journal of library administration; 30, nos. 1/2 u. nos.3/4
-
Cheung, C.M.K.; Lee, M.K.O.: Understanding consumer trust in Internet shopping : a multidisciplinary approach (2006)
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- Date
- 22. 7.2006 17:06:10
-
Suche 3.0 (2009)
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- Date
- 3. 5.1997 8:44:22
- Footnote
- Weitere Artikel auf S.2-3: Berberich, C.: Wie das Netz zwitschert - Beuth, P.: Kurz und fündig - Beuth, P. u. V. Funk: Ein Artikel, der nie fertig wird
-
Feigenbaum, L.; Herman, I.; Hongsermeier, T.; Neumann, E.; Stephens, S.: ¬The Semantic Web in action (2007)
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- Abstract
- Six years ago in this magazine, Tim Berners-Lee, James Hendler and Ora Lassila unveiled a nascent vision of the Semantic Web: a highly interconnected network of data that could be easily accessed and understood by any desktop or handheld machine. They painted a future of intelligent software agents that would head out on the World Wide Web and automatically book flights and hotels for our trips, update our medical records and give us a single, customized answer to a particular question without our having to search for information or pore through results. They also presented the young technologies that would make this vision come true: a common language for representing data that could be understood by all kinds of software agents; ontologies--sets of statements--that translate information from disparate databases into common terms; and rules that allow software agents to reason about the information described in those terms. The data format, ontologies and reasoning software would operate like one big application on the World Wide Web, analyzing all the raw data stored in online databases as well as all the data about the text, images, video and communications the Web contained. Like the Web itself, the Semantic Web would grow in a grassroots fashion, only this time aided by working groups within the World Wide Web Consortium, which helps to advance the global medium. Since then skeptics have said the Semantic Web would be too difficult for people to understand or exploit. Not so. The enabling technologies have come of age. A vibrant community of early adopters has agreed on standards that have steadily made the Semantic Web practical to use. Large companies have major projects under way that will greatly improve the efficiencies of in-house operations and of scientific research. Other firms are using the Semantic Web to enhance business-to-business interactions and to build the hidden data-processing structures, or back ends, behind new consumer services. And like an iceberg, the tip of this large body of work is emerging in direct consumer applications, too.
- Content
- Vgl. auch unter: http://thefigtrees.net/lee/sw/sciam/semantic-web-in-action#single-page.
-
Herrmann, C.: Partikulare Konkretion universal zugänglicher Information : Beobachtungen zur Konzeptionierung fachlicher Internet-Seiten am Beispiel der Theologie (2000)
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- Date
- 22. 1.2000 19:29:08
- Source
- Bibliotheksdienst. 34(2000) H.1, S.102-112
-
Gersmann, G.; Dörr, M.: ¬Der Server Frühe Neuzeit als Baustein für eine Virtuelle Fachbibliothek Geschichte (2001)
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- Date
- 22. 3.2001 11:57:52
- Source
- Bibliotheksdienst. 35(2001) H.3, S.283-294
-
Schininà, A.: Literatur im Internet (2001)
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- Source
- Online Mitteilungen. 2001, Nr.70, S.22-36 [=Mitteilungen VÖB 54(2001) H.2/3]
-
Sprachtechnologie für eine dynamische Wirtschaft im Medienzeitalter - Language technologies for dynamic business in the age of the media - L'ingénierie linguistique au service de la dynamisation économique à l'ère du multimédia : Tagungsakten der XXVI. Jahrestagung der Internationalen Vereinigung Sprache und Wirtschaft e.V., 23.-25.11.2000 Fachhochschule Köln (2000)
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- Content
- Enthält die Beiträge: WRIGHT, S.E.: Leveraging terminology resources across application boundaries: accessing resources in future integrated environments; PALME, K.: E-Commerce: Verhindert Sprache Business-to-business?; RÜEGGER, R.: Die qualität der virtuellen Information als Wettbewerbsvorteil: Information im Internet ist Sprache - noch; SCHIRMER, K. u. J. HALLER: Zugang zu mehrsprachigen Nachrichten im Internet; WEISS, A. u. W. WIEDEN: Die Herstellung mehrsprachiger Informations- und Wissensressourcen in Unternehmen; FULFORD, H.: Monolingual or multilingual web sites? An exploratory study of UK SMEs; SCHMIDTKE-NIKELLA, M.: Effiziente Hypermediaentwicklung: Die Autorenentlastung durch eine Engine; SCHMIDT, R.: Maschinelle Text-Ton-Synchronisation in Wissenschaft und Wirtschaft; HELBIG, H. u.a.: Natürlichsprachlicher Zugang zu Informationsanbietern im Internet und zu lokalen Datenbanken; SIENEL, J. u.a.: Sprachtechnologien für die Informationsgesellschaft des 21. Jahrhunderts; ERBACH, G.: Sprachdialogsysteme für Telefondienste: Stand der Technik und zukünftige Entwicklungen; SUSEN, A.: Spracherkennung: Akteulle Einsatzmöglichkeiten im Bereich der Telekommunikation; BENZMÜLLER, R.: Logox WebSpeech: die neue Technologie für sprechende Internetseiten; JAARANEN, K. u.a.: Webtran tools for in-company language support; SCHMITZ, K.-D.: Projektforschung und Infrastrukturen im Bereich der Terminologie: Wie kann die Wirtschaft davon profitieren?; SCHRÖTER, F. u. U. MEYER: Entwicklung sprachlicher Handlungskompetenz in englisch mit hilfe eines Multimedia-Sprachlernsystems; KLEIN, A.: Der Einsatz von Sprachverarbeitungstools beim Sprachenlernen im Intranet; HAUER, M.: Knowledge Management braucht Terminologie Management; HEYER, G. u.a.: Texttechnologische Anwendungen am Beispiel Text Mining
-
Lang, U.: Jeder hat das Recht, sein Portal zum Wissen zu betreten : Bielefeld Conference 2002 (2002)
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- Date
- 22. 6.2002 19:02:11
- Footnote
- Bericht über die 6. Bielefeld Conference, 5.-7.2.2002 unter dem Titel " Informationsqualität für alle und ihre Kosten". Vgl. auch: Goldschmitt, R.: Strategien im Infospace: Bericht über die Bielefeld 2002 Conference "Informationsqualität für alle und ihre Kosten". In: Zeitschrift für Bibliothekswesen und Bibliographie. 49(2002) H.3, S.154-159.
- Source
- Bibliotheksdienst. 36(2002) H.5, S.595-613
-
Crestani, F.; Lee, P.L.: Searching the web by constraining spreading activities (2000)
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-
Lee, C.; Chen, Y.T.: Distributed visual reasoning for intelligent information retrieval on the Web (2000)
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-
Research and advanced technology for digital libraries : 7th European conference, ECDL2003 Trondheim, Norway, August 17-22, 2003. Proceedings (2003)
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- Content
- Inhalt: Uses, Users, and User Interaction Metadata Applications - Semantic Browsing / Alexander Faaborg, Carl Lagoze Annotation and Recommendation Automatic Classification and Indexing - Cross-Lingual Text Categorization / Nuria Bel, Cornelis H.A. Koster, Marta Villegas - Automatic Multi-label Subject Indexing in a Multilingual Environment / Boris Lauser, Andreas Hotho Web Technologies Topical Crawling, Subject Gateways - VASCODA: A German Scientific Portal for Cross-Searching Distributed Digital Resource Collections / Heike Neuroth, Tamara Pianos Architectures and Systems Knowledge Organization: Concepts - The ADEPT Concept-Based Digital Learning Environment / T.R. Smith, D. Ancona, O. Buchel, M. Freeston, W. Heller, R. Nottrott, T. Tierney, A. Ushakov - A User Evaluation of Hierarchical Phrase Browsing / Katrina D. Edgar, David M. Nichols, Gordon W. Paynter, Kirsten Thomson, Ian H. Witten - Visual Semantic Modeling of Digital Libraries / Qinwei Zhu, Marcos Andre Gongalves, Rao Shen, Lillian Cassell, Edward A. Fox Collection Building and Management Knowledge Organization: Authorities and Works - Automatic Conversion from MARC to FRBR / Christian Monch, Trond Aalberg Information Retrieval in Different Application Areas Digital Preservation Indexing and Searching of Special Document and Collection Information
- Editor
- Koch, T. u. I. Torvik Solvberg
-
Beyond book indexing : how to get started in Web indexing, embedded indexing and other computer-based media (2000)
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- Content
- Enthält die Beiträge: Part 1: Beyond stand-alone indexes: embedded indexing: WRIGHT; J.C.: The world of embedded indexing; MONCRIEF, L.: Indexing computer-related documents - Part 2: Beyond the book: Web indexing: WALKER, D.: Subject-oriented Web indexing; BROCCOLI, K. u. G.V. RAVENSWAAY: Web indexing - anchors away; MAISLIN, S.: Ripping out the pages; ROWLAND, M.J.: Plunging in: Creating a Web site index for an online newsletter - Part 3: Special topics in computer-based indexing: ROWLAND, M.J.: <Meta> tags; WOODS. X.B.: Envisioning the word: Multimedia CD-ROM indexing; HOLBERT, S.: How to index Windows-based online help - Part 4: Beyond traditional marketing - selling yourself in hyperspace: ROWLAND, M.J.: Web site design for indexers; RICE, R.: Putting sample indexes on your Web site; CONNOLLY, D.A.: The many uses of Email discussion lists
- Editor
- Brenner, D. u. M. Rowland
-
Social information retrieval systems : emerging technologies and applications for searching the Web effectively (2008)
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- Content
- Inhalt Collaborating to search effectively in different searcher modes through cues and specialty search / Naresh Kumar Agarwal and Danny C.C. Poo -- Collaborative querying using a hybrid content and results-based approach / Chandrani Sinha Ray ... [et al.] -- Collaborative classification for group-oriented organization of search results / Keiichi Nakata and Amrish Singh -- A case study of use-centered descriptions : archival descriptions of what can be done with a collection / Richard Butterworth -- Metadata for social recommendations : storing, sharing, and reusing evaluations of learning resources / Riina Vuorikari, Nikos Manouselis, and Erik Duval -- Social network models for enhancing reference-based search engine rankings / Nikolaos Korfiatis ... [et al.] -- From PageRank to social rank : authority-based retrieval in social information spaces / Sebastian Marius Kirsch ... [et al.] -- Adaptive peer-to-peer social networks for distributed content-based Web search / Le-Shin Wu ... [et al.] -- The ethics of social information retrieval / Brendan Luyt and Chu Keong Lee -- The social context of knowledge / Daniel Memmi -- Social information seeking in digital libraries / George Buchanan and Annika Hinze -- Relevant intra-actions in networked environments / Theresa Dirndorfer Anderson -- Publication and citation analysis as a tool for information retrieval / Ronald Rousseau -- Personalized information retrieval in a semantic-based learning environment / Antonella Carbonaro and Rodolfo Ferrini -- Multi-agent tourism system (MATS) / Soe Yu Maw and Myo-Myo Naing -- Hybrid recommendation systems : a case study on the movies domain / Konstantinos Markellos ... [et al.].
- Editor
- Goh, D. u. S. Foo
-
Orthmann, C.; Näcke, L.: ¬Die Chancen virtueller sozialer Gemeinschaften im Internet für einen interkulturellen Wissenschaftsdiskurs (2000)
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- Source
- Globalisierung und Wissensorganisation: Neue Aspekte für Wissen, Wissenschaft und Informationssysteme: Proceedings der 6. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation Hamburg, 23.-25.9.1999. Hrsg.: H.P. Ohly, G. Rahmstorf u. A. Sigel
