期刊
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
卷 105, 期 -, 页码 27-40出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.techfore.2016.01.028
关键词
Morphology analysis; Subject-action-object (SAO); Technology change; Text mining; Dye-sensitized solar cells (DSSCs)
资金
- General Program of National Natural Science Foundation of China [71373019]
- National Key Technology RD Program [2013BAH20F01]
- Basic Scientific Research Fund of Beijing Institute of Technology [20132142008]
Morphology analysis, despite being a strong stimulus for the development of new alternatives, largely relies on domain experts and neglects the relationships between keywords in the construction of morphological structures. In addition, there are few systematic approaches to prioritize the morphological configurations. To address these issues, a hybrid approach is proposed, which enhances the performance of morphology analysis by combining it with subject-action-object (SAO) semantic analysis. Initially, a keyword co-occurrence patent set for subsequent SAO analysis is prepared based on keywords frequency vector analysis. Then, SAO structures are extracted and semantic analysis is performed to identify the relationships between keywords, which help to build morphological structures more objectively. In addition, a well-defined evaluation system that contains eight sub-indexes is proposed to evaluate the morphological configurations. Finally, to demonstrate and validate the proposed approach, the dye-sensitized solar cells technology is employed as the case study. Results indicate that the most promising combination we predict appears frequently in 2012-2014 and the distribution of it is also close to the fact in 2012-2014. Accordingly, the proposed method can be used to effectively determine the direction of technological change and to forecast technology innovation opportunities. (C) 2016 Elsevier Inc. All rights reserved.
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