Experimental Conditions
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Experimental Conditions. MultiPoint. PowerPoint. The MultiPoint command “make a rectangle” converts a sketched rectangle into neatened form. A participant using MultiPoint on a tablet computer. Time for completion in the two groups of participants. WOz Speech Recognition. 6. 6.

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Experimental Conditions

MultiPoint

PowerPoint

The MultiPoint command “make a rectangle” converts a sketched rectangle into neatened form.

A participant using MultiPoint on a tablet computer

Time for completion in the two groups of participants

WOz Speech Recognition

6

6

Computer Speech Recognition

6

6

Experimental design. Tools tested (within subjects variable) versus Independent groups (between subjects variable)

Steps for completion in the two groups of participants.

Errors for completion in the two groups of participants.

Results:

MultiPoint: A Case Study of Multimodal Performance

for Building Presentations

Anoop K. Sinha, Michael Shilman, Niraj Shah

Group for User Interface ResearchCS Division, EECS Department

University of California at Berkeley

Experiment:

MultiPoint Architecture

Tasks:

ABSTRACT

MultiPoint is a speech and pen user interface for building presentations, implemented as an add-on to Microsoft PowerPointTM. In this study, we compared users’ performance between building presentations with MultiPoint and with PowerPoint. We also compared participants’ performance between using Wizard of Oz (WOz) speech recognition and computer speech recognition. In aggregate, six participants with WOz recognition completed tasks in about the same time and with about the same number of errors, as they did using PowerPoint alone. Six participants with computer speech recognition took twice the time and committed four times as many errors, as they did using PowerPoint.


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