Tudhope, D.; Taylor, C.: Navigation via similarity (1997)
0.01
0.0073997467 = product of:
0.029598987 = sum of:
0.029598987 = product of:
0.059197973 = sum of:
0.059197973 = weight(_text_:project in 155) [ClassicSimilarity], result of:
0.059197973 = score(doc=155,freq=2.0), product of:
0.21156175 = queryWeight, product of:
4.220981 = idf(docFreq=1764, maxDocs=44218)
0.050121464 = queryNorm
0.27981415 = fieldWeight in 155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.220981 = idf(docFreq=1764, maxDocs=44218)
0.046875 = fieldNorm(doc=155)
0.5 = coord(1/2)
0.25 = coord(1/4)
- Abstract
- Describes a research project, in which similarity measures have been extended to include imprecise matching over different dimensions of structured classification schemes (subject, soace, time). The semantic similarity of information units forms the basis for the automatic construction of links and is integrated into hypermedia navigation. Outlines a semantic hypermedia architecture, and a prototype museum social history application. Presents illustrative navigation scenarios which make use of a navigation via similarity tool. The temporal mesaures of semantic closeness underpin the similarity tool. The temporal measures takes account of periods as well as time points. The most general measure is based on a traversal of a semantic net, taking into account relationship type and level of specialisation. It is based on a notion of closeness rather than absolute distance, and returns a seit of semantically close terms. Discusses a methods of calculating semantic similarity between sets of index terms, based on the maximal closeness values achieved by each term
