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首页> 外文会议>International Symposium on Human Factors in Telecommunication; 20031201-20031204; Berlin; DE >How do non-expert users exploit simultaneous inputs in multimodal interaction?
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How do non-expert users exploit simultaneous inputs in multimodal interaction?

机译：非专家用户如何在多模式交互中利用同步输入？

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摘要

This paper evaluates scenario based user tests of speech-centric multimodal interaction on a small mobile terminal. Non-expert users solved tasks in the tourist guide domain using a functional multimodal PDA-based application. The tasks required pen and speech input, but the users were free to choose either sequential or simultaneous pen and speech input at each step in the dialogue. Multimodal interfaces are still a novelty to most users so we had to explain this functionality to the test users. The format of the introduction had a noticeable effect on user behaviour. Users who had seen a video demonstration used simultaneous pen and speech input more often than the users who had had a text only introduction even if the same information was present in both formats. 9 of 14 subjects who had seen the video demo, applied simultaneous pen and speech input instantly. We therefore claim that people will use simultaneous multimodal input when they have been properly introduced to this functionality. However, simultaneous use of pen and speech may impose an extra cognitive load, at least until people get familiar with this kind of interface. The users considered the multimodal interaction attractive and expressed that they enjoyed the freedom of choosing input mode at each step in the dialogue.
机译：本文评估了基于场景的小型移动终端上以语音为中心的多模式交互的用户测试。非专家用户使用基于功能性多模式PDA的应用程序解决了旅游指南领域的任务。这些任务需要笔和语音输入，但是用户可以在对话的每个步骤中自由选择顺序或同时进行笔和语音输入。对于大多数用户而言，多模式接口仍然是一个新颖事物，因此我们不得不向测试用户解释此功能。简介的格式对用户行为产生了显着影响。观看过视频演示的用户比使用纯文本介绍的用户更经常使用笔和语音同时输入，即使两种格式中都存在相同的信息。在观看过视频演示的14位受试者中，有9位立即应用了笔和语音同步输入。因此，我们声称人们在适当地引入此功能后将使用同时多模式输入。但是，至少在人们熟悉这种界面之前，同时使用笔和语音可能会带来额外的认知负担。用户认为多模式交互很有吸引力，并表示他们喜欢在对话框的每个步骤中选择输入模式的自由。

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