Journal
SCIENTOMETRICS
Volume 88, Issue 3, Pages 863-883Publisher
SPRINGER
DOI: 10.1007/s11192-011-0420-z
Keywords
Technology Subject-Action-Object (SAO); Function; Patent mining; Patent analysis; Technology trends analysis; Co-word analysis; Actor network theory
Funding
- National Research Foundation of Korea (NRF)
- Korea government (MEST) [2009-0088379]
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This paper suggests a method for Subject-Action-Object (SAO) network analysis of patents for technology trends identification by using the concept of function. The proposed method solves the shortcoming of the keyword-based approach to identification of technology trends, i.e., that it cannot represent how technologies are used or for what purpose. The concept of function provides information on how a technology is used and how it interacts with other technologies; the keyword-based approach does not provide such information. The proposed method uses an SAO model and represents key concept'' instead of key word''. We present a procedure that formulates an SAO network by using SAO models extracted from patent documents, and a method that applies actor network theory to analyze technology implications of the SAO network. To demonstrate the effectiveness of the SAO network this paper presents a case study of patents related to Polymer Electrolyte Membrane technology in Proton Exchange Membrane Fuel Cells.
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