Research on the Relationship between the Interdisciplinarity of Papers and Scientific Breakthroughs
Interdisciplinary research is of great significance for realizing scientific innovation.Based on annual break-throughs reported in Science magazine from 2001 to 2020,this study measures the interdisciplinarity of scientific break-throughs through three dimensions of discipline diversity from the perspective of references.Furthermore,it discusses and compares the relationship between interdisciplinarity and scientific breakthroughs in different disciplines.The results re-veal an inverted U-shaped relationship between the Rao-Stirling index and scientific breakthroughs.Disciplinary variety and the number of discipline groups negatively affect scientific breakthroughs,and disciplinary disparity positively affects scientific breakthroughs.The relationship between interdisciplinarity and scientific breakthroughs differs depending on dis-cipline groups.Therefore,we suggest that interdisciplinary research activities should be conducted in a few disciplines with large differences.Basic sciences should avoid being combined with too many disciplines,and applied sciences should absorb knowledge from various disciplines in a balanced and extensive manner.Furthermore,governments and research in-stitutions should actively build cross-innovation platforms.
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