Effects of Frequency Distribution on Linear Menu Performance


論文アブストラクト:While it is well known that menu usage follows a Zipfian distribution, there has been little interest in the impact of menu item frequency distribution on user's behavior. In this note, we explore the effects of frequency distribution on average menu performance as well as individual item performance. We compare three frequency distributions of menu item usage: Uniform; Zipfian with s=1 and Zipfian with s=2. The results show that (1) user's behavior is sensitive to different frequency distributions at both menu and item level; (2) individual item selection time depends on, not only its frequency, but also the frequency of other items in the menu. Finally, we discuss how these findings might have impacts on menu design, empirical studies and menu modeling.


メニュー使用はジップ分布(Zipfian distribution)に従う(12項目のメニューがあるとき最高頻度項目は最低頻度項目の12倍の頻度で選択される)が、本稿では頻度分布による「メニューの個別項目における選択時間」および「メニュー全体における選択時間」への影響を調べた