López-Herrera, A.G.; Herrera-Viedma, E.; Herrera, F.: ¬A study of the use of multi-objective evolutionary algorithms to learn Boolean queries : a comparative study (2009)
0.01
0.011464215 = product of:
0.02292843 = sum of:
0.02292843 = product of:
0.04585686 = sum of:
0.04585686 = weight(_text_:f in 1751) [ClassicSimilarity], result of:
0.04585686 = score(doc=1751,freq=2.0), product of:
0.14876038 = queryWeight, product of:
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.037322722 = queryNorm
0.3082599 = fieldWeight in 1751, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.985786 = idf(docFreq=2232, maxDocs=44218)
0.0546875 = fieldNorm(doc=1751)
0.5 = coord(1/2)
0.5 = coord(1/2)
