Crow, R.W.; Starbird, R.F.: Easier said than done : practical considerations in user interface design (1992)
0.06
0.05679584 = product of:
0.11359168 = sum of:
0.11359168 = product of:
0.22718336 = sum of:
0.22718336 = weight(_text_:r.w in 2780) [ClassicSimilarity], result of:
0.22718336 = score(doc=2780,freq=2.0), product of:
0.33425686 = queryWeight, product of:
7.689554 = idf(docFreq=54, maxDocs=44218)
0.043468952 = queryNorm
0.679667 = fieldWeight in 2780, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.689554 = idf(docFreq=54, maxDocs=44218)
0.0625 = fieldNorm(doc=2780)
0.5 = coord(1/2)
0.5 = coord(1/2)