Smith, T.R.; Zeng, M.L.; ADEPT Knowledge Organization Team: Structured models of scientific concepts for organizing, accessing, and using learning materials (2003)
0.00
0.0021504906 = product of:
0.0043009813 = sum of:
0.0043009813 = product of:
0.008601963 = sum of:
0.008601963 = weight(_text_:a in 2715) [ClassicSimilarity], result of:
0.008601963 = score(doc=2715,freq=8.0), product of:
0.048230026 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.041828327 = queryNorm
0.17835285 = fieldWeight in 2715, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.0546875 = fieldNorm(doc=2715)
0.5 = coord(1/2)
0.5 = coord(1/2)
- 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.
- Type
- a