Comments on “A Bibliometric Analysis of Research on Intangible Cultural Heritage Using CiteSpace” by Su et al. (2019)

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As there are many levels of databases listed above, authors should choose the suitable databases for their bibliometric researches (Ho, 2019a(Ho, , 2019b. For instance, ESCI complements the highly selective indexes by providing earlier visibility for sources under evaluation as part of SCIE, SSCI, and A&HCI's rigorous journal selection process (http://liu. brook lyn.libguides.com/az.php?a=e) (Ho, 2019a(Ho, , 2019b. ESCI, CPCI-S, CPCI-SSH, BKCI-S, BKCI-SSH, CCR-EXPANDED, IC, and other databases from Web of Science are inappropriate for "A bibliometric analysis of research on intangible cultural heritage using CiteSpace" (Su et al., 2019).
Using the Topic: (Intangible cultural heritage) that means Topic: (Intangible and cultural and heritage) is inappropriate for the study of Su et al. (2019). Based on the searching keywords from the original paper (Su et al., 2019), an improved method is to use SCI-EXPANDED, SSCI, and A&HCI with the searching keyword "intangible cultural heritage" from 1900 to 2018. Document type of "article" was considered. This method resulted in 355 articles. However, SCI-EXPANDED, SSCI, and A&HCI are designed mainly for researchers to find published literature works not used for bibliometric studies (Ho, 2018a(Ho, , 2018b(Ho, , 2019a(Ho, , 2019b. Thus, it is always necessary to use an accurate bibliometric method when using the SCI-EXPANDED, SSCI, and A&HCI (Ho, 2018a(Ho, , 2018b(Ho, , 2019a. It was pointed out that the articles, which can only be searched by KeyWords Plus, were irrelevant to "intangible cultural heritage" (Fu & Ho, 2015). Ho's group was the first to propose "front page" as a filter to improve the bibliometric method (Fu & Ho, 2014;Fu et al., 2012;Ho & Fu, 2016). Only documents with searching 894291S GOXXX10.1177/2158244019894291SAGE OpenHo research-article20192019

Comments on "A Bibliometric Analysis of Research on Intangible Cultural Heritage Using CiteSpace" by Su et al. (2019)
Yuh-Shan Ho keywords in their "front page," including the article title, the abstract, and the author keywords, were considered. As a result, 329 articles (98% of the 335 articles) had search keywords in their "front page," whereas six articles (1.7%) did not include "intangible cultural heritage" in their "front page." Similar comments have also been published in Environmental Science and Pollution Research (Ho, 2018a), Renewable & Sustainable Energy Reviews (Ho, 2018c), Journal of Soils and Sediments (Ho, 2019c), and Chinese Medical Journal (Ho, 2019d) in recent years. In addition to such limited data, 335 articles published in 15 years (2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018) were not appropriate to have a bibliometric study from statistical point of view.
Furthermore, Su et al. (2019) noticed that "Because articles are more academic in nature than conference proceedings, using a longer publication span helps to collect more a complete body of literature." in section "Data Collection." Documents in SCI-EXPANDED and SSCI can be categorized as more than one document. For example, documents "Oral sensing of food properties" (Kohyama, 2015) and "Mediterranean diet, culture and heritage: Challenges for a new conception" (Medina, 2009) were both document types of articles and also proceedings papers. Su et al. (2019) published the bibliometric paper in Sage Open using an inappropriate method; this may result in misleading the journal readers (Ho, 2018b(Ho, , 2019a(Ho, , 2019b

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