Search (1 results, page 1 of 1)

  • × author_ss:"Smith, T.R."
  • × theme_ss:"Computer Based Training"
  • × year_i:[2000 TO 2010}
  1. Smith, T.R.; Zeng, M.L.; ADEPT Knowledge Organization Team: Structured models of scientific concepts for organizing, accessing, and using learning materials (2003) 0.04
    0.043557227 = product of:
      0.08711445 = sum of:
        0.060314562 = weight(_text_:digital in 2715) [ClassicSimilarity], result of:
          0.060314562 = score(doc=2715,freq=2.0), product of:
            0.19770671 = queryWeight, product of:
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.050121464 = queryNorm
            0.30507088 = fieldWeight in 2715, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.944552 = idf(docFreq=2326, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2715)
        0.026799891 = weight(_text_:library in 2715) [ClassicSimilarity], result of:
          0.026799891 = score(doc=2715,freq=2.0), product of:
            0.1317883 = queryWeight, product of:
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.050121464 = queryNorm
            0.20335563 = fieldWeight in 2715, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6293786 = idf(docFreq=8668, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2715)
      0.5 = coord(2/4)
    
    Abstract
    The knowledge represented in learning materials for the sciences is typically organized around term-based or "weakly-structured" models of concepts and their interrelationships. We introduce a "strongly-structured" model of scientific concepts that provides the foundation for a knowledge base (KB) of concept representations. An extension of the Alexandria Digital Library employs such a KB, together with associated collection and services, to support undergraduate leaming.