PDF(762 KB)
The Study of Patent Data Warehouse-based Technical Efficiency Map Mining Method——Taking 3D Printing Technology as an Example
Zhai Dongsheng, Cai Liwei, Zhang Jie, Feng Xiuzhen
Data Analysis and Knowledge Discovery ›› 2015, Vol. 31 ›› Issue (7-8) : 131-138.
PDF(762 KB)
PDF(762 KB)
The Study of Patent Data Warehouse-based Technical Efficiency Map Mining Method——Taking 3D Printing Technology as an Example
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