Search (42 results, page 1 of 3)

  • × type_ss:"a"
  • × type_ss:"el"
  • × year_i:[2000 TO 2010}
  1. Boldi, P.; Santini, M.; Vigna, S.: PageRank as a function of the damping factor (2005) 0.03
    0.028434819 = product of:
      0.07108705 = sum of:
        0.057163734 = weight(_text_:o in 2564) [ClassicSimilarity], result of:
          0.057163734 = score(doc=2564,freq=2.0), product of:
            0.20624171 = queryWeight, product of:
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.041106213 = queryNorm
            0.27716863 = fieldWeight in 2564, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2564)
        0.013923312 = product of:
          0.027846623 = sum of:
            0.027846623 = weight(_text_:22 in 2564) [ClassicSimilarity], result of:
              0.027846623 = score(doc=2564,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.19345059 = fieldWeight in 2564, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2564)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Abstract
    PageRank is defined as the stationary state of a Markov chain. The chain is obtained by perturbing the transition matrix induced by a web graph with a damping factor alpha that spreads uniformly part of the rank. The choice of alpha is eminently empirical, and in most cases the original suggestion alpha=0.85 by Brin and Page is still used. Recently, however, the behaviour of PageRank with respect to changes in alpha was discovered to be useful in link-spam detection. Moreover, an analytical justification of the value chosen for alpha is still missing. In this paper, we give the first mathematical analysis of PageRank when alpha changes. In particular, we show that, contrarily to popular belief, for real-world graphs values of alpha close to 1 do not give a more meaningful ranking. Then, we give closed-form formulae for PageRank derivatives of any order, and an extension of the Power Method that approximates them with convergence O(t**k*alpha**t) for the k-th derivative. Finally, we show a tight connection between iterated computation and analytical behaviour by proving that the k-th iteration of the Power Method gives exactly the PageRank value obtained using a Maclaurin polynomial of degree k. The latter result paves the way towards the application of analytical methods to the study of PageRank.
    Date
    16. 1.2016 10:22:28
  2. Dobratz, S.; Neuroth, H.: nestor: Network of Expertise in long-term STOrage of digital Resources : a digital preservation initiative for Germany (2004) 0.02
    0.024732811 = product of:
      0.12366406 = sum of:
        0.12366406 = weight(_text_:o in 1195) [ClassicSimilarity], result of:
          0.12366406 = score(doc=1195,freq=26.0), product of:
            0.20624171 = queryWeight, product of:
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.041106213 = queryNorm
            0.5996074 = fieldWeight in 1195, product of:
              5.0990195 = tf(freq=26.0), with freq of:
                26.0 = termFreq=26.0
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.0234375 = fieldNorm(doc=1195)
      0.2 = coord(1/5)
    
    Abstract
    As follow up, in 2002 the nestor long-term archiving working group provided an initial spark towards planning and organising coordinated activities concerning the long-term preservation and long-term availability of digital documents in Germany. This resulted in a workshop, held 29 - 30 October 2002, where major tasks were discussed. Influenced by the demands and progress of the nestor network, the participants reached agreement to start work on application-oriented projects and to address the following topics: * Overlapping problems o Collection and preservation of digital objects (selection criteria, preservation policy) o Definition of criteria for trusted repositories o Creation of models of cooperation, etc. * Digital objects production process o Analysis of potential conflicts between production and long-term preservation o Documentation of existing document models and recommendations for standards models to be used for long-term preservation o Identification systems for digital objects, etc. * Transfer of digital objects o Object data and metadata o Transfer protocols and interoperability o Handling of different document types, e.g. dynamic publications, etc. * Long-term preservation of digital objects o Design and prototype implementation of depot systems for digital objects (OAIS was chosen to be the best functional model.) o Authenticity o Functional requirements on user interfaces of an depot system o Identification systems for digital objects, etc. At the end of the workshop, participants decided to establish a permanent distributed infrastructure for long-term preservation and long-term accessibility of digital resources in Germany comparable, e.g., to the Digital Preservation Coalition in the UK. The initial phase, nestor, is now being set up by the above-mentioned 3-year funding project.
  3. Prieto-Díaz, R.: ¬A faceted approach to building ontologies (2002) 0.02
    0.023630828 = product of:
      0.05907707 = sum of:
        0.029217226 = weight(_text_:u in 2259) [ClassicSimilarity], result of:
          0.029217226 = score(doc=2259,freq=2.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.21706703 = fieldWeight in 2259, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.046875 = fieldNorm(doc=2259)
        0.029859845 = weight(_text_:r in 2259) [ClassicSimilarity], result of:
          0.029859845 = score(doc=2259,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.2194412 = fieldWeight in 2259, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.046875 = fieldNorm(doc=2259)
      0.4 = coord(2/5)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  4. Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008) 0.02
    0.01837008 = product of:
      0.0459252 = sum of:
        0.029217226 = weight(_text_:u in 3261) [ClassicSimilarity], result of:
          0.029217226 = score(doc=3261,freq=2.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.21706703 = fieldWeight in 3261, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.046875 = fieldNorm(doc=3261)
        0.016707974 = product of:
          0.033415947 = sum of:
            0.033415947 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
              0.033415947 = score(doc=3261,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.23214069 = fieldWeight in 3261, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3261)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Date
    28.11.2016 12:43:22
    Source
    http://www.personal.psu.edu/faculty/f/u/fuf1/hermeneus/Hermeneus_architecture.pdf
  5. Reiner, U.: Automatische DDC-Klassifizierung bibliografischer Titeldatensätze der Deutschen Nationalbibliografie (2009) 0.02
    0.01795032 = product of:
      0.0448758 = sum of:
        0.03373715 = weight(_text_:u in 3284) [ClassicSimilarity], result of:
          0.03373715 = score(doc=3284,freq=6.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.25064746 = fieldWeight in 3284, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03125 = fieldNorm(doc=3284)
        0.01113865 = product of:
          0.0222773 = sum of:
            0.0222773 = weight(_text_:22 in 3284) [ClassicSimilarity], result of:
              0.0222773 = score(doc=3284,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.15476047 = fieldWeight in 3284, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3284)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Abstract
    Das Klassifizieren von Objekten (z. B. Fauna, Flora, Texte) ist ein Verfahren, das auf menschlicher Intelligenz basiert. In der Informatik - insbesondere im Gebiet der Künstlichen Intelligenz (KI) - wird u. a. untersucht, inweit Verfahren, die menschliche Intelligenz benötigen, automatisiert werden können. Hierbei hat sich herausgestellt, dass die Lösung von Alltagsproblemen eine größere Herausforderung darstellt, als die Lösung von Spezialproblemen, wie z. B. das Erstellen eines Schachcomputers. So ist "Rybka" der seit Juni 2007 amtierende Computerschach-Weltmeistern. Inwieweit Alltagsprobleme mit Methoden der Künstlichen Intelligenz gelöst werden können, ist eine - für den allgemeinen Fall - noch offene Frage. Beim Lösen von Alltagsproblemen spielt die Verarbeitung der natürlichen Sprache, wie z. B. das Verstehen, eine wesentliche Rolle. Den "gesunden Menschenverstand" als Maschine (in der Cyc-Wissensbasis in Form von Fakten und Regeln) zu realisieren, ist Lenat's Ziel seit 1984. Bezüglich des KI-Paradeprojektes "Cyc" gibt es CycOptimisten und Cyc-Pessimisten. Das Verstehen der natürlichen Sprache (z. B. Werktitel, Zusammenfassung, Vorwort, Inhalt) ist auch beim intellektuellen Klassifizieren von bibliografischen Titeldatensätzen oder Netzpublikationen notwendig, um diese Textobjekte korrekt klassifizieren zu können. Seit dem Jahr 2007 werden von der Deutschen Nationalbibliothek nahezu alle Veröffentlichungen mit der Dewey Dezimalklassifikation (DDC) intellektuell klassifiziert.
    Die Menge der zu klassifizierenden Veröffentlichungen steigt spätestens seit der Existenz des World Wide Web schneller an, als sie intellektuell sachlich erschlossen werden kann. Daher werden Verfahren gesucht, um die Klassifizierung von Textobjekten zu automatisieren oder die intellektuelle Klassifizierung zumindest zu unterstützen. Seit 1968 gibt es Verfahren zur automatischen Dokumentenklassifizierung (Information Retrieval, kurz: IR) und seit 1992 zur automatischen Textklassifizierung (ATC: Automated Text Categorization). Seit immer mehr digitale Objekte im World Wide Web zur Verfügung stehen, haben Arbeiten zur automatischen Textklassifizierung seit ca. 1998 verstärkt zugenommen. Dazu gehören seit 1996 auch Arbeiten zur automatischen DDC-Klassifizierung bzw. RVK-Klassifizierung von bibliografischen Titeldatensätzen und Volltextdokumenten. Bei den Entwicklungen handelt es sich unseres Wissens bislang um experimentelle und keine im ständigen Betrieb befindlichen Systeme. Auch das VZG-Projekt Colibri/DDC ist seit 2006 u. a. mit der automatischen DDC-Klassifizierung befasst. Die diesbezüglichen Untersuchungen und Entwicklungen dienen zur Beantwortung der Forschungsfrage: "Ist es möglich, eine inhaltlich stimmige DDC-Titelklassifikation aller GVK-PLUS-Titeldatensätze automatisch zu erzielen?"
    Date
    22. 1.2010 14:41:24
  6. Baeza-Yates, R.; Boldi, P.; Castillo, C.: Generalizing PageRank : damping functions for linkbased ranking algorithms (2006) 0.02
    0.015522606 = product of:
      0.038806513 = sum of:
        0.024883203 = weight(_text_:r in 2565) [ClassicSimilarity], result of:
          0.024883203 = score(doc=2565,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.18286766 = fieldWeight in 2565, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2565)
        0.013923312 = product of:
          0.027846623 = sum of:
            0.027846623 = weight(_text_:22 in 2565) [ClassicSimilarity], result of:
              0.027846623 = score(doc=2565,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.19345059 = fieldWeight in 2565, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2565)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Date
    16. 1.2016 10:22:28
  7. Apps, A.; MacIntyre, R.; Heery, R.; Patel, M.; Salokhe, G.: Zetoc : a Dublin Core Based Current Awareness Service (2002) 0.01
    0.014076066 = product of:
      0.07038033 = sum of:
        0.07038033 = weight(_text_:r in 1280) [ClassicSimilarity], result of:
          0.07038033 = score(doc=1280,freq=4.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.5172279 = fieldWeight in 1280, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.078125 = fieldNorm(doc=1280)
      0.2 = coord(1/5)
    
  8. Heery, R.; Patel, M.: Application profiles : mixing and matching metadata schemas (2000) 0.01
    0.013934595 = product of:
      0.06967297 = sum of:
        0.06967297 = weight(_text_:r in 3915) [ClassicSimilarity], result of:
          0.06967297 = score(doc=3915,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.51202947 = fieldWeight in 3915, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.109375 = fieldNorm(doc=3915)
      0.2 = coord(1/5)
    
  9. Bradford, R.B.: Relationship discovery in large text collections using Latent Semantic Indexing (2006) 0.01
    0.0122467205 = product of:
      0.030616801 = sum of:
        0.019478152 = weight(_text_:u in 1163) [ClassicSimilarity], result of:
          0.019478152 = score(doc=1163,freq=2.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.14471136 = fieldWeight in 1163, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03125 = fieldNorm(doc=1163)
        0.01113865 = product of:
          0.0222773 = sum of:
            0.0222773 = weight(_text_:22 in 1163) [ClassicSimilarity], result of:
              0.0222773 = score(doc=1163,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.15476047 = fieldWeight in 1163, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1163)
          0.5 = coord(1/2)
      0.4 = coord(2/5)
    
    Source
    Proceedings of the Fourth Workshop on Link Analysis, Counterterrorism, and Security, SIAM Data Mining Conference, Bethesda, MD, 20-22 April, 2006. [http://www.siam.org/meetings/sdm06/workproceed/Link%20Analysis/15.pdf]
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  10. Van de Sompel, H.; Beit-Arie, O.: Generalizing the OpenURL framework beyond references to scholarly works : the Bison-Futé model (2001) 0.01
    0.011432747 = product of:
      0.057163734 = sum of:
        0.057163734 = weight(_text_:o in 1223) [ClassicSimilarity], result of:
          0.057163734 = score(doc=1223,freq=2.0), product of:
            0.20624171 = queryWeight, product of:
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.041106213 = queryNorm
            0.27716863 = fieldWeight in 1223, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1223)
      0.2 = coord(1/5)
    
  11. Dousa, T.: Everything Old is New Again : Perspectivism and Polyhierarchy in Julius O. Kaiser's Theory of Systematic Indexing (2007) 0.01
    0.011432747 = product of:
      0.057163734 = sum of:
        0.057163734 = weight(_text_:o in 4835) [ClassicSimilarity], result of:
          0.057163734 = score(doc=4835,freq=2.0), product of:
            0.20624171 = queryWeight, product of:
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.041106213 = queryNorm
            0.27716863 = fieldWeight in 4835, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.017288 = idf(docFreq=795, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4835)
      0.2 = coord(1/5)
    
  12. Baker, T.; Dekkers, M.; Heery, R.; Patel, M.; Salokhe, G.: What Terms Does Your Metadata Use? : Application Profiles as Machine-Understandable Narratives (2002) 0.01
    0.009953282 = product of:
      0.049766406 = sum of:
        0.049766406 = weight(_text_:r in 1279) [ClassicSimilarity], result of:
          0.049766406 = score(doc=1279,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.36573532 = fieldWeight in 1279, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.078125 = fieldNorm(doc=1279)
      0.2 = coord(1/5)
    
  13. Apps, A.; MacIntyre, R.: Why OpenURL? (2006) 0.01
    0.007962625 = product of:
      0.039813124 = sum of:
        0.039813124 = weight(_text_:r in 4081) [ClassicSimilarity], result of:
          0.039813124 = score(doc=4081,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.29258826 = fieldWeight in 4081, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.0625 = fieldNorm(doc=4081)
      0.2 = coord(1/5)
    
  14. Jackson, R.: Information Literacy and its relationship to cognitive development and reflective judgment (2008) 0.01
    0.007962625 = product of:
      0.039813124 = sum of:
        0.039813124 = weight(_text_:r in 111) [ClassicSimilarity], result of:
          0.039813124 = score(doc=111,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.29258826 = fieldWeight in 111, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.0625 = fieldNorm(doc=111)
      0.2 = coord(1/5)
    
  15. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.01
    0.007876215 = product of:
      0.039381072 = sum of:
        0.039381072 = product of:
          0.078762144 = sum of:
            0.078762144 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.078762144 = score(doc=3925,freq=4.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.54716086 = fieldWeight in 3925, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3925)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Date
    22. 7.2006 15:22:28
  16. Hoang, H.H.; Tjoa, A.M: ¬The state of the art of ontology-based query systems : a comparison of existing approaches (2006) 0.01
    0.0077912607 = product of:
      0.038956303 = sum of:
        0.038956303 = weight(_text_:u in 792) [ClassicSimilarity], result of:
          0.038956303 = score(doc=792,freq=2.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.28942272 = fieldWeight in 792, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0625 = fieldNorm(doc=792)
      0.2 = coord(1/5)
    
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  17. Bartolo, L.M.; Lowe, C.S.; Sadoway, D.R.; Powell, A.C.; Glotzer, S.C.: NSDL MatDL : exploring digital library roles (2005) 0.01
    0.0068865665 = product of:
      0.034432832 = sum of:
        0.034432832 = weight(_text_:u in 1181) [ClassicSimilarity], result of:
          0.034432832 = score(doc=1181,freq=4.0), product of:
            0.13460001 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.041106213 = queryNorm
            0.25581595 = fieldWeight in 1181, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1181)
      0.2 = coord(1/5)
    
    Abstract
    A primary goal of the NSDL Materials Digital Library (MatDL) is to bring materials science research and education closer together. MatDL is exploring the various roles digital libraries can serve in the materials science community including: 1) supporting a virtual lab, 2) developing markup language applications, and 3) building tools for metadata capture. MatDL is being integrated into an MIT virtual laboratory experience. Early student self-assessment survey results expressed positive opinions of the potential value of MatDL in supporting a virtual lab and in accomplishing additional educational objectives. A separate survey suggested that the effectiveness of a virtual lab may approach that of a physical lab on some laboratory learning objectives. MatDL is collaboratively developing a materials property grapher (KSU and MIT) and a submission tool (KSU and U-M). MatML is an extensible markup language for exchanging materials information developed by materials data experts in industry, government, standards organizations, and professional societies. The web-based MatML grapher allows students to compare selected materials properties across approximately 80 MatML-tagged materials. The MatML grapher adds value in this educational context by allowing students to utilize real property data to make optimal material selection decisions. The submission tool has been integrated into the regular workflow of U-M students and researchers generating nanostructure images. It prompts users for domain-specific information, automatically generating and attaching keywords and editable descriptions.
  18. Qin, J.; Paling, S.: Converting a controlled vocabulary into an ontology : the case of GEM (2001) 0.01
    0.0066831894 = product of:
      0.033415947 = sum of:
        0.033415947 = product of:
          0.066831894 = sum of:
            0.066831894 = weight(_text_:22 in 3895) [ClassicSimilarity], result of:
              0.066831894 = score(doc=3895,freq=2.0), product of:
                0.14394696 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.041106213 = queryNorm
                0.46428138 = fieldWeight in 3895, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3895)
          0.5 = coord(1/2)
      0.2 = coord(1/5)
    
    Date
    24. 8.2005 19:20:22
  19. Auer, S.; Bizer, C.; Kobilarov, G.; Lehmann, J.; Cyganiak, R.; Ives, Z.: DBpedia: a nucleus for a Web of open data (2007) 0.01
    0.005971969 = product of:
      0.029859845 = sum of:
        0.029859845 = weight(_text_:r in 4260) [ClassicSimilarity], result of:
          0.029859845 = score(doc=4260,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.2194412 = fieldWeight in 4260, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.046875 = fieldNorm(doc=4260)
      0.2 = coord(1/5)
    
  20. Darnton, R.: Im Besitz des Wissens : Von der Gelehrtenrepublik des 18. Jahrhunderts zum digitalen Google-Monopol (2009) 0.01
    0.005971969 = product of:
      0.029859845 = sum of:
        0.029859845 = weight(_text_:r in 2335) [ClassicSimilarity], result of:
          0.029859845 = score(doc=2335,freq=2.0), product of:
            0.13607219 = queryWeight, product of:
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.041106213 = queryNorm
            0.2194412 = fieldWeight in 2335, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.3102584 = idf(docFreq=4387, maxDocs=44218)
              0.046875 = fieldNorm(doc=2335)
      0.2 = coord(1/5)
    

Languages

  • e 38
  • d 4