Leydesdorff, L.; Wagner, C.S.; Porto-Gomez, I.; Comins, J.A.; Phillips, F.: Synergy in the knowledge base of U.S. innovation systems at national, state, and regional levels : the contributions of high-tech manufacturing and knowledge-intensive services (2019)
0.01
0.009549598 = product of:
0.038198393 = sum of:
0.038198393 = weight(_text_:l in 5390) [ClassicSimilarity], result of:
0.038198393 = score(doc=5390,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.2195706 = fieldWeight in 5390, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=5390)
0.25 = coord(1/4)
