谷歌趋势在infodemiology: 方法步骤,以避免不可重现的结果和无效的结论
1Redeev SRL, Napoli 80121, Italy.
International journal of medical informatics
|July 23, 2024
概括
由于采样问题,谷歌趋势数据 (RSV,ROI) 在信息学中可能不可靠. 仔细分析网络搜索索引稳定性对于有效的科学结论至关重要.
科学领域:
- 传染病学中的传染病学.
- 数字流行病学数字流行病学
- 网络科学 网络科学
背景情况:
- 谷歌趋势是用于信息学调查的流行的工具.
- 然而,它的相对搜索量 (RSV) 和区域在线兴趣 (ROI) 可能是不可靠的,因为抽样和聚合算法的不规则.
研究的目的:
- 在谷歌趋势信息学调查中识别和解决关键的方法问题.
- 为改善谷歌趋势数据在研究中的可靠性提供指导.
主要方法:
- 通过使用各种时间间隔,类别和IP地址,调查了谷歌主题"2019年冠状病毒病".
- 使用可变性指标 (CV%,4-I) 评估了RSV和ROI稳定性,并分析了主题和类别内的查询相关性.
主要成果:
- RSV和ROI的稳定性不仅仅取决于数据集大小或IP地址;次区域数据可能非常不稳定.
- 谷歌趋势算法可能包括不相关的查询或排除相关的查询,从而影响数据的准确性.
- 数据集大小和算法改进影响了历史RSV趋势.
结论:
- 如果严格评估网络搜索索引的可靠性,谷歌趋势可以成为一个有价值的信息学工具.
- 实施讨论的方法步骤对于从谷歌趋势数据中得出科学有效的结论至关重要.
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