Search (2631 results, page 1 of 132)

  • × 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) 0.16 
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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. Ku, L.-W.; Ho, H.-W.; Chen, H.-H.: Opinion mining and relationship discovery using CopeOpi opinion analysis system (2009) 0.15 
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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.
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.7, S.1486-1503
  3. Proffitt, M.: Pulling it all together : use of METS in RLG cultural materials service (2004) 0.13 
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    Abstract
    RLG has used METS for a particular application, that is as a wrapper for structural metadata. When RLG cultural materials was launched, there was no single way to deal with "complex digital objects". METS provides a standard means of encoding metadata regarding the digital objects represented in RCM, and METS has now been fully integrated into the workflow for this service.
    Source
    Library hi tech. 22(2004) no.1, S.65-68
  4. Koehler, W.: Web page change and persistence : a four-year longitudinal study (2002) 0.13 
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    Abstract
    Changes in the topography of the Web can be expressed in at least four ways: (1) more sites on more servers in more places, (2) more pages and objects added to existing sites and pages, (3) changes in traffic, and (4) modifications to existing text, graphic, and other Web objects. This article does not address the first three factors (more sites, more pages, more traffic) in the growth of the Web. It focuses instead on changes to an existing set of Web documents. The article documents changes to an aging set of Web pages, first identified and "collected" in December 1996 and followed weekly thereafter. Results are reported through February 2001. The article addresses two related phenomena: (1) the life cycle of Web objects, and (2) changes to Web objects. These data reaffirm that the half-life of a Web page is approximately 2 years. There is variation among Web pages by top-level domain and by page type (navigation, content). Web page content appears to stabilize over time; aging pages change less often than once they did
    Date
    7. 2.2002 20:13:03
  5. Wurster, E.H.: Bibliothekarische Dienste 2002 : Neu strukturiert, bedarfsgerecht ausgerichtet (2000) 0.12 
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    Date
    22. 3.2003 10:24:47
    Source
    Ekz Report. 2001, H.7, S.7
  6. Benitez, A.B.; Zhong, D.; Chang, S.-F.: Enabling MPEG-7 structural and semantic descriptions in retrieval applications (2007) 0.12 
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    Abstract
    The MPEG-7 standard supports the description of both the structure and the semantics of multimedia; however, the generation and consumption of MPEG-7 structural and semantic descriptions are outside the scope of the standard. This article presents two research prototype systems that demonstrate the generation and consumption of MPEG-7 structural and semantic descriptions in retrieval applications. The active system for MPEG-4 video object simulation (AMOS) is a video object segmentation and retrieval system that segments, tracks, and models objects in videos (e.g., person, car) as a set of regions with corresponding visual features and spatiotemporal relations. The region-based model provides an effective base for similarity retrieval of video objects. The second system, the Intelligent Multimedia Knowledge Application (IMKA), uses the novel MediaNet framework for representing semantic and perceptual information about the world using multimedia. MediaNet knowledge bases can be constructed automatically from annotated collections of multimedia data and used to enhance the retrieval of multimedia.
    Object
    MPEG-7
  7. Srinivasan, R.; Boast, R.; Becvar, K.M.; Furner, J.: Blobgects : digital museum catalogs and diverse user communities (2009) 0.12 
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    Abstract
    This article presents an exploratory study of Blobgects, an experimental interface for an online museum catalog that enables social tagging and blogging activity around a set of cultural heritage objects held by a preeminent museum of anthropology and archaeology. This study attempts to understand not just whether social tagging and commenting about these objects is useful but rather whose tags and voices matter in presenting different expert perspectives around digital museum objects. Based on an empirical comparison between two different user groups (Canadian Inuit high-school students and museum studies students in the United States), we found that merely adding the ability to tag and comment to the museum's catalog does not sufficiently allow users to learn about or engage with the objects represented by catalog entries. Rather, the specialist language of the catalog provides too little contextualization for users to enter into the sort of dialog that proponents of Web 2.0 technologies promise. Overall, we propose a more nuanced application of Web 2.0 technologies within museums - one which provides a contextual basis that gives users a starting point for engagement and permits users to make sense of objects in relation to their own needs, uses, and understandings.
    Date
    22. 3.2009 18:52:32
  8. Makarov, M.: ¬The seventh edition of the IPC (2000) 0.12 
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    Object
    IPC-7
    Source
    World patent information. 22(2000) no.1, S.53-58
  9. Tochtermann, K.; Granitzer, M.: Wissenserschließung : Pfade durch den digitalen Informationsdschungel (2005) 0.12 
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    Date
    5.11.2005 19:18:22
    Source
    Wissensmanagement. 7(2005) H.5, S.26-29
  10. Elsweiler, D.; Ruthven, I.; Jones, C.: Towards memory supporting personal information management tools (2007) 0.11 
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    Abstract
    In this article, the authors discuss reretrieving personal information objects and relate the task to recovering from lapse(s) in memory. They propose that memory lapses impede users from successfully refinding the information they need. Their hypothesis is that by learning more about memory lapses in noncomputing contexts and about how people cope and recover from these lapses, we can better inform the design of personal information management (PIM) tools and improve the user's ability to reaccess and reuse objects. They describe a diary study that investigates the everyday memory problems of 25 people from a wide range of backgrounds. Based on the findings, they present a series of principles that they hypothesize will improve the design of PIM tools. This hypothesis is validated by an evaluation of a tool for managing personal photographs, which was designed with respect to the authors' findings. The evaluation suggests that users' performance when refinding objects can be improved by building personal information management tools to support characteristics of human memory.
    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.7, S.924-946
  11. Zielke, B.: Kognition und soziale Praxis : der Soziale Konstruktionismus und die Perspektiven einer postkognitivistischen Psychologie (2004) 0.10 
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    Classification
    CM 2200
    RVK
    CM 2200
  12. Liu, V.: Cooperative Online Resource Catalog (CORC) : a community college's experience (2000) 0.10 
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    Date
    7. 4.1996 10:30:27
    Source
    Community and junior college libraries. 9(2000) no.3, S.5-22
  13. afp: Gehirn von Taxifahrern passt sich an : Größerer Hippocampus (2000) 0.10 
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    Date
    7. 3.1997 9:13:36
    22. 7.2000 19:05:18
  14. Geißelmann, F.: Arbeitsergebnisse der Arbeitsgruppe Codes (2000) 0.10 
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    Date
    26. 8.2000 19:22:35
    Source
    Bibliotheksdienst. 34(2000) H.7/8, S.1185-1186
  15. Bawden, D.: Google and the universe of knowledge (2008) 0.10 
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    Date
    7. 6.2008 16:22:20
  16. Understanding metadata (2004) 0.10 
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    Abstract
    Metadata (structured information about an object or collection of objects) is increasingly important to libraries, archives, and museums. And although librarians are familiar with a number of issues that apply to creating and using metadata (e.g., authority control, controlled vocabularies, etc.), the world of metadata is nonetheless different than library cataloging, with its own set of challenges. Therefore, whether you are new to these concepts or quite experienced with classic cataloging, this short (20 pages) introductory paper on metadata can be helpful
    Date
    10. 9.2004 10:22:40
  17. Bates, M.J.: Fundamental forms of information (2006) 0.10 
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    Abstract
    Fundamental forms of information, as well as the term information itself, are defined and developed for the purposes of information science/studies. Concepts of natural and represented information (taking an unconventional sense of representation), encoded and embodied information, as well as experienced, enacted, expressed, embedded, recorded, and trace information are elaborated. The utility of these terms for the discipline is illustrated with examples from the study of information-seeking behavior and of information genres. Distinctions between the information and curatorial sciences with respect to their social (and informational) objects of study are briefly outlined.
    Date
    22. 3.2009 18:15:22
  18. Yee, R.; Beaubien, R.: ¬A preliminary crosswalk from METS to IMS content packaging (2004) 0.10 
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    Abstract
    As educational technology becomes pervasive, demand will grow for library content to be incorporated into courseware. Among the barriers impeding interoperability between libraries and educational tools is the difference in specifications commonly used for the exchange of digital objects and metadata. Among libraries, Metadata Encoding and Transmission Standard (METS) is a new but increasingly popular standard; the IMS content-package (IMS-CP) plays a parallel role in educational technology. This article describes how METS-encoded library content can be converted into digital objects for IMS-compliant systems through an XSLT-based crosswalk. The conceptual models behind METS and IMS-CP are compared, the design and limitations of an XSLT-based translation are described, and the crosswalks are related to other techniques to enhance interoperability.
    Source
    Library hi tech. 22(2004) no.1, S.69-81
  19. Ecker, R.: Schnelle Dokumentenlieferung mit FastDoc (2000) 0.10 
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    Date
    7. 1.1998 21:44:09
    22. 7.2000 16:34:11
    Source
    Dokumente und Datenbanken in elektronischen Netzen: Tagungsberichte vom 6. und 7. Österreichischen Online-Informationstreffen bzw. vom 7. und 8. Österreichischen Dokumentartag, Schloß Seggau, Seggauberg bei Leibnitz, 26.-29. September 1995, Congresszentrum Igls bei Innsbruck, 21.-24. Oktober 1997. Hrsg.: E. Pipp
  20. Pernsteiner, R.: Qualitätsinformationen im Internet mit Anbindung an Intranet (2000) 0.10 
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    Date
    7. 1.1998 21:44:09
    22. 7.2000 16:37:12
    Source
    Dokumente und Datenbanken in elektronischen Netzen: Tagungsberichte vom 6. und 7. Österreichischen Online-Informationstreffen bzw. vom 7. und 8. Österreichischen Dokumentartag, Schloß Seggau, Seggauberg bei Leibnitz, 26.-29. September 1995, Congresszentrum Igls bei Innsbruck, 21.-24. Oktober 1997. Hrsg.: E. Pipp

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