Twitter-Based Detection of Illegal Online Sale of Prescription Opioid
Twitter-Based Detection of Illegal Online Sale of Prescription Opioid
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DOI：
10.2105/ajph.2017.303994
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发表时间：
2017-12-01
影响因子：
12.7
通讯作者：
Lanckriet, Gert
中科院分区：
文献类型：
--
作者：
Mackey, Tim K.;Kalyanam, Janani;Lanckriet, Gert
目标。采用一种方法，准确识别营销非法在线销售管制物质的推文。我们首先从经过处方类阿片关键词过滤的Twitter公共应用程序接口流中收集推文。然后，我们使用无监督机器学习（特别是主题建模）来识别与非法在线营销和销售相关的主题。最后，我们进行了网络取证分析，以表征不同类型的在线供应商。我们分析了2015年6月至11月5个月期间包含关键词可待因、Percocet、芬太尼、维柯丁、奥施康定、羟考酮和氢可酮的619937条推文。共有1778条推文（< 1%）被确定为在线销售受管制物质的营销；90%的网站嵌入了超链接，但在评估时只有46个网站是“实时的”。七个不同的url链接到在线营销或非法销售管制药物的网站。我们的方法可以从大量的推文中识别处方阿片类药物的非法在线销售。我们的研究结果表明，受控物质通过不同的策略和供应商在网上贩运。公共卫生影响。我们的方法可以用来识别违反瑞安·海特在线药店消费者保护法的非法在线卖家。
Objectives. To deploy a methodology accurately identifying tweets marketing the illegal online sale of controlled substances.Methods. We first collected tweets from the Twitter public application program interface stream filtered for prescription opioid keywords. We then used unsupervised machine learning (specifically, topic modeling) to identify topics associated with illegal online marketing and sales. Finally, we conducted Web forensic analyses to characterize different types of online vendors. We analyzed 619 937 tweets containing the keywords codeine, Percocet, fentanyl, Vicodin, Oxycontin, oxycodone, and hydrocodone over a 5-month period from June to November 2015.Results. A total of 1778 tweets (< 1%) were identified as marketing the sale of controlled substances online; 90% had imbedded hyperlinks, but only 46 were "live" at the time of the evaluation. Seven distinct URLs linked to Web sites marketing or illegally selling controlled substances online.Conclusions. Our methodology can identify illegal online sale of prescription opioids from large volumes of tweets. Our results indicate that controlled substances are trafficked online via different strategies and vendors.Public Health Implications. Our methodology can be used to identify illegal online sellers in criminal violation of the Ryan Haight Online Pharmacy Consumer Protection Act.