科普弹幕设置方式对信息提取效率的影响  

Influence of Knowledgeable-Explanation Bullet Screen Projection on Information Extraction Efficiency

作　　者：陈柳 陈思蓉 蔡泓 陈青兰[1] CHEN Liu;CHEN Sirong;CAI Hong;CHEN Qinglan(School of Economics & Management,Xiamen University of Technology,Xiamen 361024,China)

机构地区：[1]厦门理工学院经济与管理学院,福建厦门361024

出　　处：《厦门理工学院学报》2020年第4期24-30,共7页Journal of Xiamen University of Technology

基　　金：福建省社会科学规划项目(FJ2019B101);福建省大学生创新创业项目(201911062133)。

摘　　要：基于眼动跟踪技术和问卷调查的研究结果表明,科普弹幕的位置和播放方式显著影响观看者的弹幕信息提取效率,而弹幕显示顺序对观看者的弹幕信息提取效率则无显著影响。相对于在视频画面上端出现的弹幕,下端弹幕可吸引更多的注视时长和注视次数,弹幕信息提取效率高;相对于静止不动的弹幕,滚动弹幕能吸引更多的注视时长,弹幕信息提取效率较高。建议科普类弹幕尽量设置在视频画面的下端,并采用滚动方式加以呈现,以提高观看者弹幕信息提取效率。A study based on eye tracking technology and questionnaire survey shows that the location and projecting mode of bullet screen(real-time comments)has significant impact on the efficiency of the relevant information extraction,while the display order has little effect if any.Compared with the bullet screen that appears at the top of the video screen,the comments at the bottom attracts more fixation duration and number of fixations with higher efficiency of information extraction.Compared with the static mode,the flying bullet screen attracts more fixation duration and produces higher efficiency in extracting information.It is suggested that when giving knowledgeable explanations,the bullet screen be presented in a flying manner across the bottom of the video screen wherever appropriate so as to improve the viewer's bullet screen information extraction efficiency.

关 键 词：科普弹幕 设置方式 信息提取效率 眼动跟踪技术 

分 类 号：G206[文化科学—传播学] G202