Search (1509 results, page 1 of 76)

  • × year_i:[2000 TO 2010}
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.11 
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    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  2. Landry, P.: MACS: multilingual access to subject and link management : Extending the Multilingual Capacity of TEL in the EDL Project (2007) 0.09 
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    Content
    Vortrag anlässlich des Workshops: "Extending the multilingual capacity of The European Library in the EDL project Stockholm, Swedish National Library, 22-23 November 2007".
  3. Horikoshi, K.; Sugita, S.; Nonaka, Y.; Kamiya, S.; Sugita, I.; Asoshina, H.: junii2 and AIRway : an application profile for scholarly works and its application for link resolvers (2008) 0.08 
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    Abstract
    A large number of scholarly works is self-archived at the university's Open Access repositories. Researchers can search these materials using general web search engines such as Google, as well as with OAI-PMH-based search engines such as OAIster (http://www.oaister.org/). The archives can also be accessed using federated search services such as MetaLib by setting the repositories as a search target. However, it remains difficult for researchers to access materials in these repositories using standard academic databases such as Thomson Reuters' Web of Science. The National Institute of Informatics (NII) in Japan has developed a DC application profile called junii2 (http://ju.nii.ac.jp/oai/junii2.xsd) for scholarly works. The AIRway Project (Access path to Institutional Resources via link resolvers) has used this profile to develop a new way of connecting university repositories with academic databases via link resolvers. junii2 is designed as an OpenURL-compliant schema (info:ofi/fmt:xml:xsd:journal), and has now been widely adopted by more than 70 university repositories in Japan. A particular feature is its ability to describe variant self-archived materials with a version description function (specifying whether it is an author's draft or the final published version) and information on the availability of the full text in the repository. AIRway is an internet server that harvests metadata from university repositories. After harvesting metadata, AIRway separates the metadata of materials whose full texts are available in the repositories from others. A link resolver sends an OpenURL request to the AIRway server before creating its navigation window. If metadata of the requested material are found in the AIRway server and the material's full text is available in a repository, the AIRway server provides the xml for the metadata of the material to the link resolver. Rather than being a new service system for end users, it is a back-end knowledgebase for existing link resolvers. 1CATE (OCLC's link resolver) and some installations of SFX (Ex Libris' link resolver) now use AIRway as one of their knowledgebases. In this way, junii2 and AIRway make Open Access scholarly works in university repositories accessible through general academic databases. This will be particularly effective if, for example, someone without a license to access an electronic journal finds a research paper on the journal in the search results of an academic database. The AIRway Project is funded by the NII Institutional Repositories Program (http://www.nii.ac.jp/irp/en/).
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  4. Baeza-Yates, R.; Boldi, P.; Castillo, C.: Generalizing PageRank : damping functions for linkbased ranking algorithms (2006) 0.08 
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    Abstract
    This paper introduces a family of link-based ranking algorithms that propagate page importance through links. In these algorithms there is a damping function that decreases with distance, so a direct link implies more endorsement than a link through a long path. PageRank is the most widely known ranking function of this family. The main objective of this paper is to determine whether this family of ranking techniques has some interest per se, and how different choices for the damping function impact on rank quality and on convergence speed. Even though our results suggest that PageRank can be approximated with other simpler forms of rankings that may be computed more efficiently, our focus is of more speculative nature, in that it aims at separating the kernel of PageRank, that is, link-based importance propagation, from the way propagation decays over paths. We focus on three damping functions, having linear, exponential, and hyperbolic decay on the lengths of the paths. The exponential decay corresponds to PageRank, and the other functions are new. Our presentation includes algorithms, analysis, comparisons and experiments that study their behavior under different parameters in real Web graph data. Among other results, we show how to calculate a linear approximation that induces a page ordering that is almost identical to PageRank's using a fixed small number of iterations; comparisons were performed using Kendall's tau on large domain datasets.
    Date
    16. 1.2016 10:22:28
  5. Wesch, M.: Web 2.0 ... The Machine is Us/ing Us (2006) 0.07 
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    Content
    Final version now available! http://youtube.com/watch?v=NLlGopyXT_g http://mediatedcultures.net A higher quality version is available for download here: http://www.mediafire.com/?6duzg3zioyd. Please note that this is the second draft and the final version will not be available until late February after I review all comments and revise the video. Please return for a new download link at that time.
    Date
    5. 1.2008 19:22:48
  6. Wu, I.-L.; Lin, H.-C.: ¬A strategy-based process for implementing knowledge management : an integrative view and empirical study (2009) 0.07 
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    Abstract
    Knowledge resource is unique and valuable for a link to competitive advantage based on the knowledge-based perspective. Effective knowledge management is the major concern of contemporary business managers. The key determinant of effective knowledge management is the firm's competitive strategy. The link between business strategy and knowledge management, while often discussed, has been widely ignored in practice. Moreover, while knowledge management is complex in nature, it is difficult to directly translate a firm's competitive strategy into the specific knowledge management activities. This requires first defining knowledge strategy to guide further information technology (IT)-supported implementation approaches. Finally, the ultimate goal of knowledge management lies in the realization of firm performance. Previous studies have just discussed partial relationship among these relevant knowledge concepts rather than in an integrative manner. Thus, this research proposes a complete process-based model with four components: competitive strategy, knowledge strategy, implementation approach, and firm performance. Empirical results have shown positive relationships between any two consecutive components and useful insight for knowledge implementation practice.
    Date
    22. 3.2009 19:08:51
  7. Standard-Thesaurus Wirtschaft online (2009) 0.07 
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    Content
    "Die ZBW Deutsche Zentralbibliothek für Wirtschaftswissenschaften - Leibniz-Informationszentrum Wirtschaft stellt ab sofort den Standard-Thesaurus Wirtschaft (STW) in der aktuellen Version 8.04 in Deutsch und Englisch online (http://zbw.eu/stw) bereit. Es ist möglich, nach Deskriptoren und Zugangsvokabular zu suchen oder im Systematikbaum zu blättern. Per direktem Link gelangt man von dort in die ZBW-Datenbank ECONIS (www.econis.eu). Der Thesaurus ist zur Nutzung im Semantic Web aufbereitet: Jeder Deskriptor ist mit einem persistenten Identifier versehen, für dessen langfristige Stabilität die ZBW garantiert. Die Thesaurus-Beziehungen sind als Daten (RDFa) in die Webseiten eingebettet. Über einen STW-Webservice (http://zbw.eu/beta/ stw-ws) können zum Beispiel Synonyme für eine Erweiterung von Suchen automatisiert abgefragt werden."
    Date
    21.11.2011 11:41:22
    Footnote
    Vgl. auch: Die Neuerungen der Version 8.08 im Detail: http://zbw.eu/stw/versions/changes/about <http://zbw.eu/stw/versions/changes/about.de.html> Link zum Download der neuen Version 8.08: http://zbw.eu/stw/versions/latest/download/about STW Web Services: http://zbw.eu/beta/stw-ws Pressebilder: http://www.zbw.eu/presse/pressemitteilungen/docs/2011_11_17-images.htm
  8. Hehl, H.: Ein Linksystem zur Integration von Literatursuche und Literaturbeschaffung : Medline-LINK (2000) 0.07 
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    Abstract
    Die durch das WWW gegebenen Möglichkeiten, von den Suchergebnissen einer Datenbank über Hyperlinks auf elektronische Volltexte zuzugreifen, einzelne Titel online zu bestellen oder mit anderen Datenbanken oder Katalogen zu verknüpfen, werden mittlerweile von vielen Datenbankanbietern genutzt oder standardmässig angeboten. Das hier besprochene Linksystem weist dieselben Möglichkeiten auf und verbindet Suchergebnisse mit lokal verfügbaren elektronischen Zeitschriften bzw. mit Bibliotheks-Katalogen. Auch eine automatische Bestellfunktion ist vorhanden. Dieses auf Javascript basierende Linksystem verwendet ein einfaches, bisher aber noch wenig bekanntes Verfahren, bei dem jeweils die gesamte Ergebnisliste einer Datenbank (50 bis 200 Titel) in das Texteingabefeld eines Formulars eingefügt und dann weiter mit Javascript bearbeitet wird. Vorteilhaft ist die gross Anpassungsfähigkeit des Programms an die speziellen oder sogar individuellen Bedürfnisse. Medline-LINK wendet dieses Linkverfahren auf die besonders effiziente und zudem entgeltfreie Datenbank PubMed an. In dieser Testversion bilden die von der UB Regensburg abonnierten E-Zeitschriften zusätzlich eines großen Teils von elsevier-Zeitschriften den Grundbestand der zu verknüpfenden Zeitschriften. Über die dynamisch ermittelte ISSN kann die Verbindung von der Ergebnisanzeige zu den Bestandsanzeigen des BVB und GBV hergestellt werden. Die automatische Bestellfunktion wird am Beispiel des Fernleihbestellformulars der UB Regensburg demonstriert
    Date
    22. 6.2000 13:23:51
    Object
    Medline-LINK
  9. Hu, D.; Kaza, S.; Chen, H.: Identifying significant facilitators of dark network evolution (2009) 0.07 
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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
  10. Schrodt, R.: Tiefen und Untiefen im wissenschaftlichen Sprachgebrauch (2008) 0.06 
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    Content
    Vgl. auch: https://studylibde.com/doc/13053640/richard-schrodt. Vgl. auch: http%3A%2F%2Fwww.univie.ac.at%2FGermanistik%2Fschrodt%2Fvorlesung%2Fwissenschaftssprache.doc&usg=AOvVaw1lDLDR6NFf1W0-oC9mEUJf.
  11. Yang, C.C.; Liu, N.: Web site topic-hierarchy generation based on link structure (2009) 0.06 
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    Abstract
    Navigating through hyperlinks within a Web site to look for information from one of its Web pages without the support of a site map can be inefficient and ineffective. Although the content of a Web site is usually organized with an inherent structure like a topic hierarchy, which is a directed tree rooted at a Web site's homepage whose vertices and edges correspond to Web pages and hyperlinks, such a topic hierarchy is not always available to the user. In this work, we studied the problem of automatic generation of Web sites' topic hierarchies. We modeled a Web site's link structure as a weighted directed graph and proposed methods for estimating edge weights based on eight types of features and three learning algorithms, namely decision trees, naïve Bayes classifiers, and logistic regression. Three graph algorithms, namely breadth-first search, shortest-path search, and directed minimum-spanning tree, were adapted to generate the topic hierarchy based on the graph model. We have tested the model and algorithms on real Web sites. It is found that the directed minimum-spanning tree algorithm with the decision tree as the weight learning algorithm achieves the highest performance with an average accuracy of 91.9%.
    Date
    22. 3.2009 12:51:47
  12. Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005) 0.06 
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    Content
    Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
  13. link: Zeitmaschine im Kopf : Das Auge ist zu schnell für das Gehirn (2001) 0.05 
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    link
    Content
    "Schaut man ruckartig auf eine Uhr, so bleibt einen winzigen Moment lang die Zeit stehen - für unser Gehirn. Denn nach schnellen Augenbewegungen nehmen wir ein neues Bild länger wahr, als wir es tatsächlich sehen. Dieses "Chronostasis" genannte Phänomen mag mancher schon bemerkt haben. Jetzt haben englische Forscher herausgefunden, dass seine Dauer von der Augenbewegung abhängt, die zuvor gemacht wurde (Nature, Bd. 414, S. 302, 2001). Die Wissenschaftler ließen Probanden auf einen Zähler blicken. Obwohl dessen erste Ziffer nur 880 Millisekunden erschien, nahmen die Testpersonen sie nach einer Augendrehung von 22 Grad als eine Sekunde wahr. Das Resümee der Versuche: Wir sehen ein neues Bild um genau so viel länger, wie die Augenbewegung zuvor dauerte. Unsere Zeitwahrnehmung spult quasi auf Start zurück. "Drei- bis viermal pro Sekunde bewegen wir blitzartig unsere Augen - für das Gehirn viel zu schnell, um die Umwelt klar abzubilden", erklärt der Psychologe Heiner Deubel von der Universität München. Dadurch entstünden visuelle Lücken im Gehirn, die wieder aufgefüllt werden, indem man danach gesehene Objekte länger wahrnimmt - zum Beispiel eine Uhr. Deubel: "Sonst würden wir die Welt bei jeder Augenbewegung wie wild umherspringen sehen.""
  14. Egghe, L.: ¬A universal method of information retrieval evaluation : the "missing" link M and the universal IR surface (2004) 0.05 
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    Date
    14. 8.2004 19:17:22
  15. Genereux, C.: Building connections : a review of the serials literature 2004 through 2005 (2007) 0.05 
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    Abstract
    This review of 2004 and 2005 serials literature covers the themes of cost, management, and access. Interwoven through the serials literature of these two years are the importance of collaboration, communication, and linkages between scholars, publishers, subscription agents and other intermediaries, and librarians. The emphasis in the literature is on electronic serials and their impact on publishing, libraries, and vendors. In response to the crisis of escalating journal prices and libraries' dissatisfaction with the Big Deal licensing agreements, Open Access journals and publishing models were promoted. Libraries subscribed to or licensed increasing numbers of electronic serials. As a result, libraries sought ways to better manage licensing and subscription data (not handled by traditional integrated library systems) by implementing electronic resources management systems. In order to provide users with better, faster, and more current information on and access to electronic serials, libraries implemented tools and services to provide A-Z title lists, title by title coverage data, MARC records, and OpenURL link resolvers.
    Date
    10. 9.2000 17:38:22
  16. Méndez, E.; López, L.M.; Siches, A.; Bravo, A.G.: DCMF: DC & Microformats, a good marriage (2008) 0.05 
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    Abstract
    This report introduces the Dublin Core Microformats (DCMF) project, a new way to use the DC element set within X/HTML. The DC microformats encode explicit semantic expressions in an X/HTML webpage, by using a specific list of terms for values of the attributes "rev" and "rel" for <a> and <link> elements, and "class" and "id" of other elements. Microformats can be easily processed by user agents and software, enabling a high level of interoperability. These characteristics are crucial for the growing number of social applications allowing users to participate in the Web 2.0 environment as information creators and consumers. This report reviews the origins of microformats; illustrates the coding of DC microformats using the Dublin Core Metadata Gen tool, and a Firefox extension for extraction and visualization; and discusses the benefits of creating Web services utilizing DC microformats.
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  17. Nicholas, D.; Huntington, P.; Jamali, H.R.; Rowlands, I.; Fieldhouse, M.: Student digital information-seeking behaviour in context (2009) 0.05 
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    Abstract
    Purpose - This study provides evidence on the actual information-seeking behaviour of students in a digital scholarly environment, not what they thought they did. It also compares student information-seeking behaviour with that of other academic communities, and, in some cases, for practitioners. Design/methodology/approach - Data were gathered as part of CIBER's ongoing Virtual Scholar programme. In particular log data from two digital journals libraries, Blackwell Synergy and OhioLINK, and one e-book collection (Oxford Scholarship Online) are utilized. Findings - The study showed a distinctive form of information-seeking behaviour associated with students and differences between them and other members of the academic community. For example, students constituted the biggest users in terms of sessions and pages viewed, and they were more likely to undertake longer online sessions. Undergraduates and postgraduates were the most likely users of library links to access scholarly databases, suggesting an important "hot link" role for libraries. Originality/value - Few studies have focused on the actual (rather than perceived) information-seeking behaviour of students. The study fills that gap.
    Date
    23. 2.2009 17:22:41
  18. Klavans, R.; Boyack, K.W.: Toward a consensus map of science (2009) 0.05 
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    Abstract
    A consensus map of science is generated from an analysis of 20 existing maps of science. These 20 maps occur in three basic forms: hierarchical, centric, and noncentric (or circular). The consensus map, generated from consensus edges that occur in at least half of the input maps, emerges in a circular form. The ordering of areas is as follows: mathematics is (arbitrarily) placed at the top of the circle, and is followed clockwise by physics, physical chemistry, engineering, chemistry, earth sciences, biology, biochemistry, infectious diseases, medicine, health services, brain research, psychology, humanities, social sciences, and computer science. The link between computer science and mathematics completes the circle. If the lowest weighted edges are pruned from this consensus circular map, a hierarchical map stretching from mathematics to social sciences results. The circular map of science is found to have a high level of correspondence with the 20 existing maps, and has a variety of advantages over hierarchical and centric forms. A one-dimensional Riemannian version of the consensus map is also proposed.
    Date
    22. 3.2009 12:49:33
  19. He, Z.-L.: International collaboration does not have greater epistemic authority (2009) 0.05 
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    Abstract
    The consistent finding that internationally coauthored papers are more heavily cited has led to a tacit agreement among politicians and scientists that international collaboration in scientific research should be particularly promoted. However, existing studies of research collaboration suffer from a major weakness in that the Thomson Reuters Web of Science until recently did not link author names with affiliation addresses. The general approach has been to hierarchically code papers into international paper, national paper, or local paper based on the address information. This hierarchical coding scheme severely understates the level and contribution of local or national collaboration on an internationally coauthored paper. In this research, I code collaboration variables by hand checking each paper in the sample, use two measures of a paper's impact, and try several regression models. I find that both international collaboration and local collaboration are positively and significantly associated with a paper's impact, but international collaboration does not have more epistemic authority than local collaboration. This result suggests that previous findings based on hierarchical coding might be misleading.
    Date
    26. 9.2009 11:22:05
  20. Liddy, E.D.; Diamond, T.; McKenna, M.: DR-LINK in TIPSTER (2000) 0.05 
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