How Could We Overcome the Truncation Problem in Ranking the Importance of Patents?-Submitted to KSS2008
Patents have been recognized and intensively studied by researchers in Economics and Technological Management disciplines since 1970s. Patent documents include records of citations to previous patents and to other scientific literature. Therefore, patent citations provide a way to measure the nature of a patent, for instance, the importance, generality, basicness and complexity of the knowledge embedded in a patent. Existing methods of measuring the importance of patents simply count the number of forward citations; its obviously insufficient to capture the variance in the technological and/or economic significance of individual patents. In this paper, we propose a ranking-based metric to measure the importance of patents. The metric not only takes into account of the citation counts, but also considers the importance ranking score of citing patents, i. e. the importance of patents propagates through the citation links. An empirical test confirms that forward citation measurements are indeed affected by truncation problem; however the proposed method in this paper provides a way to determine a proper setting to overcome the truncation problem associated with forward citations.
Feng Zhang Xiaoyun He Guohua Jiang
Department of Management and Global Business, Rutgers University, US Department of Management Science and Information Systems, Rutgers University, US Department of General and Strategic Management, Temple University, US
国际会议
广州
英文
300-305
2008-12-11（万方平台首次上网日期，不代表论文的发表时间）