2021
DOI: 10.1016/j.techfore.2020.120366
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A topic models based framework for detecting and forecasting emerging technologies

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Cited by 39 publications
(15 citation statements)
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References 67 publications
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“…First, this study constructs an evolution analysis framework of interindustry technology linkage topics, which is composed of the Lingo algorithm and knowledge gene theory. Compared with the existing topic evolution analysis methods [49][50][51][52][53], the proposed analysis framework has the following advantages: in the aspect of analyzing topic dynamic change characteristics, this study embeds the similarity formula into the Lingo algorithm to calculate the similarity degree between adjacent time topics, which can effectively show the degree of inheritance or variation of topics over time. However, the existing methods [49][50][51][52][53] only extracted the topics in different time periods, and then counted the changes of the number of topics on different time nodes.…”
Section: Discussionmentioning
confidence: 99%
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“…First, this study constructs an evolution analysis framework of interindustry technology linkage topics, which is composed of the Lingo algorithm and knowledge gene theory. Compared with the existing topic evolution analysis methods [49][50][51][52][53], the proposed analysis framework has the following advantages: in the aspect of analyzing topic dynamic change characteristics, this study embeds the similarity formula into the Lingo algorithm to calculate the similarity degree between adjacent time topics, which can effectively show the degree of inheritance or variation of topics over time. However, the existing methods [49][50][51][52][53] only extracted the topics in different time periods, and then counted the changes of the number of topics on different time nodes.…”
Section: Discussionmentioning
confidence: 99%
“…Compared with the existing topic evolution analysis methods [49][50][51][52][53], the proposed analysis framework has the following advantages: in the aspect of analyzing topic dynamic change characteristics, this study embeds the similarity formula into the Lingo algorithm to calculate the similarity degree between adjacent time topics, which can effectively show the degree of inheritance or variation of topics over time. However, the existing methods [49][50][51][52][53] only extracted the topics in different time periods, and then counted the changes of the number of topics on different time nodes. In essence, they only conducted a simple statistical analysis of several static time points of technical topics, and then reflect the changes of topics by investigating their differences at multiple static time points, without in-depth analysis of the inheritance or variation degree of topics in different periods, that lead to a very limited understanding of the evolution characteristics of topics.…”
Section: Discussionmentioning
confidence: 99%
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“…It should be noted that when analyzing textual information about technology components or methods, it is convenient to include bigrams and/or trigrams in the analysis, since multi-word combinations can be indicative of problems and solutions (Heffernan & Teufel, 2018). Multiword based text mining results also improve the interpretation of text-mining analysis results, especially when dealing with complex topics such as technology solutions (Xu et al, 2021) or clinical risk factors (Sabra & Sabeeh, 2020), consequently, an approach based on n-grams seems to be the best choice when dealing with technically complex and context-dependent subjects.…”
Section: Literature Reviewmentioning
confidence: 99%
“…By using combination of document influence model (DIM) and citation influence model (CIM), the growth, coherence, and influence indicators were extracted from papers and then were used to train the machine learning (ML) model to predict emerging topics (Xu et al, 2021b ). In their following work, DIM was replaced by the topical n-grams (TNG) model to exploit the potential topic models (Xu et al, 2021a ).…”
Section: Related Workmentioning
confidence: 99%