Hu, K.; Luo, Q.; Qi, K.; Yang, S.; Mao, J.; Fu, X.; Zheng, J.; Wu, H.; Guo, Y.; Zhu, Q.: Understanding the topic evolution of scientific literatures like an evolving city : using Google Word2Vec model and spatial autocorrelation analysis (2019)
0.02
0.015966438 = product of:
0.031932876 = sum of:
0.031932876 = product of:
0.06386575 = sum of:
0.06386575 = weight(_text_:y in 5102) [ClassicSimilarity], result of:
0.06386575 = score(doc=5102,freq=2.0), product of:
0.30029026 = queryWeight, product of:
4.8124003 = idf(docFreq=976, maxDocs=44218)
0.06239927 = queryNorm
0.21268006 = fieldWeight in 5102, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.8124003 = idf(docFreq=976, maxDocs=44218)
0.03125 = fieldNorm(doc=5102)
0.5 = coord(1/2)
0.5 = coord(1/2)