TY -非盟的泽č增强型植被指数ć,米拉AU - Mijatović,德扬AU -科斯Koklič,马泰亚- AU -Žabkar,维斯纳非盟- Gidaković,佩PY - 2021 DA - 2021/4/22 TI -用户视角Diet-Tracking应用:评论内容分析和主题建模乔- J地中海互联网Res SP - e25160六世- 23 - 4 KW - Diet-Tracking应用KW -移动应用KW -用户评论KW -主题建模KW - - gram KW - mHealth KW -营养KW -饮食KW -幸福AB -背景:移动应用程序在健康和营养管理中的可用性和使用正在增加。易于访问和用户友好性使饮食跟踪应用程序成为用户减肥和管理体重的重要盟友。为了培养长期使用的动机和实现目标，有必要更好地了解用户对饮食自我监测的意见和需求。目的:本研究的目的是确定用户在谷歌Play Store上对饮食跟踪应用程序的评论中强调的关键主题和问题。识别用户在这些应用程序的评论中经常提到的主题，以及用户对每个应用程序的评分，使我们能够确定应用程序的进一步改进可以促进应用程序的使用，并支持用户的减肥和摄入量管理工作。方法:我们从谷歌Play Store收集了72,084条用户评论，用于15款饮食跟踪应用程序，允许用户跟踪和计算卡路里。在一系列文本处理操作后，两种文本挖掘技术(主题建模和主题n-grams)应用于饮食跟踪应用程序的用户评论语料库。结果:使用主题建模技术，从用户评论池中提取了11个独立的主题。提供反馈的大多数用户对他们使用的应用程序总体满意(15个应用程序的平均评分为4.4分(满分为5分)。 Most topics referred to the positive evaluation of the apps and their functions. Negatively rated topics mostly referred to app charges and technical difficulties encountered. We identified the positive and negative topic trigrams (3-word combinations) among the most frequently mentioned topics. Usability and functionality (tracking options) of apps were rated positively on average. Negative ratings were associated with trigrams related to adding new foods, technical issues, and app charges. Conclusions: Motivating users to use an app over time could help them better achieve their nutrition goals. Although user reviews generally showed positive opinions and ratings of the apps, developers should pay more attention to users’ technical problems and inform users about expected payments, along with their refund and cancellation policies, to increase user loyalty. SN - 1438-8871 UR - //www.mybigtv.com/2021/4/e25160 UR - https://doi.org/10.2196/25160 UR - http://www.ncbi.nlm.nih.gov/pubmed/33885375 DO - 10.2196/25160 ID - info:doi/10.2196/25160 ER -