%0期刊文章%@ 1438-8871 %I JMIR出版物%V 23%卡塔尔世界杯8强波胆分析 N 4% P e25160% T饮食跟踪应用程序的用户观点:评论内容分析和主题建模%A zezevevic,Mila %A mijatoviic,Dejan %A Kos Koklič，Mateja %A Žabkar,Vesna %A gidakoviic,Petar %+卢布尔雅那大学经济与商业学院，Kardeljeva ploscad 17，卢布尔雅那，1000，斯洛文尼亚，386 15892429，mila.zecevic@ef.uni-lj.si %K饮食跟踪应用程序%K移动应用程序%K用户评论%K主题建模%K n-grams %K mHealth %K营养%K饮食%K福祉%D 2021 %7 22.4.2021 %9原始论文%J J医学互联网Res %G英文%X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。 Most of the users providing feedback were generally satisfied with the apps they use (average rating of 4.4 out of 5 for the 15 apps). 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. %M 33885375 %R 10.2196/25160 %U //www.mybigtv.com/2021/4/e25160 %U https://doi.org/10.2196/25160 %U http://www.ncbi.nlm.nih.gov/pubmed/33885375