Short video streaming platforms have gained immense popularity in recent years, transforming the way users consume video content. A critical aspect of user interaction with these platforms is the swipe gesture, which allows users to navigate through videos seamlessly. However, the delay between a user's swipe action and the subsequent video playback can significantly impact the overall user experience. This paper presents the first systematic study investigating the effects of swipe delay on user Quality of Experience (QoE) in short video streaming. In particular, we conduct a subjective quality assessment containing 132 swipe delay patterns. The obtained results show that user experience is affected not only by the swipe delay duration, but also by the number of delays and their temporal positions. A single delay of eight seconds or longer is likely to lead to user dissatisfaction. Moreover, early-session delays are less harmful to user QoE than late-session delays. Based on the findings, we propose a novel QoE model that accurately predicts user experience based on swipe delay characteristics. The proposed model demonstrates high correlation with subjective ratings, outperforming existing models in short video streaming.

翻译：短视频流媒体平台近年来广受欢迎，改变了用户消费视频内容的方式。用户与这些平台交互的一个关键方面是滑动操作，它允许用户无缝浏览视频。然而，用户滑动操作与随后的视频播放之间的延迟会显著影响整体用户体验。本文首次系统性地研究了滑动延迟对短视频流媒体用户体验质量的影响。具体而言，我们进行了一项包含132种滑动延迟模式的主观质量评估。结果表明，用户体验不仅受滑动延迟时长的影响，还受延迟次数及其时间位置的影响。单次8秒或更长的延迟可能导致用户不满。此外，会话早期的延迟对用户体验质量的损害小于会话后期的延迟。基于这些发现，我们提出了一种新型用户体验质量模型，该模型能根据滑动延迟特征准确预测用户体验。所提出的模型与主观评分高度相关，在短视频流媒体中优于现有模型。