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Describing the public perception of chemistry on twitter
Chemistry Education Research and Practice ( IF 3 ) Pub Date : 2020-05-14 , DOI: 10.1039/c9rp00282k
Manuel Guerris 1, 2, 3 , Jordi Cuadros 1, 2, 3 , Lucinio González-Sabaté 1, 2, 3 , Vanessa Serrano 1, 2, 3
Affiliation  

The public image of chemistry is a relevant issue for chemical stakeholders. It has been studied throughout history by means of document analysis and more recently through surveys. Twitter, a worldwide online social network, is based on spontaneous opinions. We tried to identify the public perception of chemistry on Twitter, what it explains, and which sentiments are perceived. We gathered 256 833 tweets between 1st January 2015 and 30th June 2015 containing the words “chemistry”, “chemical” or “chem”. We cleaned and filtered them down to 50 725 tweets with textual information in English and clustered them using spherical k-means. The resulting clusters were categorised according to six topics by 18 chemistry experts. The prevailing topics were the learning environment topic, related to activities and tasks in chemistry courses, and the human activity topic, referring to facts and news about the chemical industry. The scientific knowledge topic, concerning communication of chemistry knowledge, only accounted for a small percentage of the tweets. We classified the tweets of most relevant topics based on their sentiment values and obtained more positive than negative perceptions. Nevertheless, the analysis of the unigrams and bigrams word clouds revealed a significant presence of chemophobia-related terms in the human activity topic, both in positive and negative classified tweets. It also revealed specific elements of chemistry courses negatively perceived in the learning environment topic.

中文翻译:

在推特上描述公众对化学的看法

化学的公众形象是化学利益相关者关注的一个问题。在整个历史中,都通过文档分析和最近的调查研究了它。Twitter是一个全球性的在线社交网络,它基于自发的观点。我们试图在Twitter上确定公众对化学的认识,它的解释以及所感知的情绪。在2015年1月1日至2015年6月30日之间,我们收集了256833条推文,其中包含“化学”,“化学”或“化学”字样。我们使用英语文本信息将其清除并过滤到50 725条tweet,并使用球形k均值对其进行聚类。18位化学专家根据六个主题对所得簇进行了分类。主要主题是学习环境主题,与化学课程中的活动和任务有关,和人类活动主题,指的是有关化学工业的事实和新闻。与化学知识的传播有关的科学知识主题仅占推文的一小部分。我们根据情感价值对最相关主题的推文进行了分类,获得了比消极看法更积极的看法。尽管如此,对字母和双字母组词云的分析显示,在人类活动主题中,无论是正面还是负面的分类推文中都存在与恐惧症相关的术语。它还揭示了在学习环境主题中遭到负面评价的化学课程的特定元素。仅占推文的一小部分。我们根据情感价值对最相关主题的推文进行了分类,获得了比消极看法更积极的看法。尽管如此,对字母和双字母组词云的分析显示,在人类活动主题中,无论是正面还是负面的分类推文中都存在与恐惧症相关的术语。它还揭示了在学习环境主题中遭到负面评价的化学课程的特定元素。仅占推文的一小部分。我们根据情感价值对最相关主题的推文进行了分类,获得了比消极看法更积极的看法。尽管如此,对字母和双字母组词云的分析显示,在人类活动主题中,无论是正面还是负面的分类推文中都存在与恐惧症相关的术语。它还揭示了在学习环境主题中遭到负面评价的化学课程的特定元素。无论是正面还是负面的分类推文。它还揭示了在学习环境主题中遭到负面评价的化学课程的特定元素。无论是正面还是负面的分类推文。它还揭示了在学习环境主题中遭到负面评价的化学课程的特定元素。
更新日期:2020-07-01
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