论文标题

在线监视全球对野生动植物的态度

Online Monitoring of Global Attitudes Towards Wildlife

论文作者

Wright, Joss, Lennox, Robert, Veríssimo, Diogo

论文摘要

人为因素越来越被认为是保护生物多样性的核心。尽管如此,目前尚无系统的努力来监测全球野生动植物感知的趋势。随着传统的新闻报道现在大部分在线,互联网提出了一种强大的手段来监测全球对物种的态度。在这项工作中,我们使用事件,语言和音调(GDELT)的全局数据库来开发一种方法来扫描全球新闻媒体,从而使我们能够识别和下载与保护相关的文章。应用监督的机器学习技术,我们过滤了无关紧要的文章,以创建一个不断更新的七个目标分类单元的新闻报道数据集:狮子,老虎,西格,犀牛,犀牛,穿衣,大象,大象和兰花,并刻录着与简单的键盘搜索匹配的文章的三分之二以上是无关的。我们检查了每个分类单元在不同地区的覆盖范围,并发现大象,犀牛,老虎和狮子会获得最多的覆盖范围,每天的峰值约为200篇文章。平均情感对所有分类单元都是积极的,除了西加利亚的中立。覆盖范围广泛分布,来自各大洲的73个国家 /地区的文章。大象和老虎在整体上的大多数国家都获得了报道,而在最小的国家中,兰花和萨加人都提到了兰花和赛加利亚。我们进一步发现,在非范围国家中,对魅力的大型巨型群岛最积极的情绪是最积极的,而Pangolins和Orchids则相反。尽管有希望的结果,但仍存在实现全球代表性结果的巨大障碍。低收入国家和用户之间的互联网访问差异是偏见的主要来源,需要专注于多种数据源和语言,提出了巨大的技术挑战。

Human factors are increasingly recognised as central to conservation of biodiversity. Despite this, there are no existing systematic efforts to monitor global trends in perceptions of wildlife. With traditional news reporting now largely online, the internet presents a powerful means to monitor global attitudes towards species. In this work we develop a method using the Global Database of Events, Language, and Tone (GDELT) to scan global news media, allowing us to identify and download conservation-related articles. Applying supervised machine learning techniques, we filter irrelevant articles to create a continually updated global dataset of news coverage for seven target taxa: lion, tiger, saiga, rhinoceros, pangolins, elephants, and orchids, and observe that over two-thirds of articles matching a simple keyword search were irrelevant. We examine coverage of each taxa in different regions, and find that elephants, rhinos, tigers, and lions receive the most coverage, with daily peaks of around 200 articles. Mean sentiment was positive for all taxa, except saiga for which it was neutral. Coverage was broadly distributed, with articles from 73 countries across all continents. Elephants and tigers received coverage in the most countries overall, whilst orchids and saiga were mentioned in the smallest number of countries. We further find that sentiment towards charismatic megafauna is most positive in non-range countries, with the opposite being true for pangolins and orchids. Despite promising results, there remain substantial obstacles to achieving globally representative results. Disparities in internet access between low and high income countries and users is a major source of bias, with the need to focus on a diversity of data sources and languages, presenting sizable technical challenges...

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