Speech-based interfaces
VoiceNotes:
A Speech Interface for a Hand-Held Voice Notetaker, by Lisa J. Stifelman,
et. al., in Proceedings of INTERCHI, Amsterdam, The Netherlands, Apr.
24-29, 1993, pp. 179-186.
Oops, sorry, no points on this one. It's been a tough week...
Good points
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Bad points
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Designing
SpeechActs: Issues in Speech User Interfaces,
by Nicole Yankelovic, et. al., in Proceedings of CHI '95: Human Factors
in Computing Systems, Denver, CO, May 1995, pp. 369-376.
Good points
Great paper!
- Recognition rates were a poor indicator of satisfaction.
Something to remember for UIs in general. I would like to read
something about what does increase user satisfaction in UIs in
general.
- Disconnection from GUI techniques. I really like their approach to
interaction: "Today, you have..." provides an indicator of the current
context without it being tedious or even noticable.
- The elimination of "dialog boxes." Yay! One wonders
how applicable their observation is to UI's in general...
Bad points
- The justification for the research was somewhat lame. Traveling
professionals who feel out of touch?
- Addition of "directive prompts." If the user doesn't provide the
desired response, then presumably it's because the user thinks the
system already knows what should be done. A better approach might
be to make a best guess and inform the user, either then or later.
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Empirical
Evaluation of Interactive Multimodal Error Correction, by Bernhard
Suhm, in Proceedings of the IEEE Workshop on Speech Recognition and
Understanding, Santa Barbara, USA, Dec. 1997.
Good points
- It's great that speech combined with textual error
correction can in theory get 78 wpm. (But see below).
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Bad points
- It's not at all clear exactly what they were measuring, and how
the different correction techniques were applied. For example, how
was "choice from N-best" applied? How did it differ for the different
techniques (spell vs write...).
- The predications in Table 4 seem rather suspect. 78 wpm
is pretty fast just to type -- and this includes error
correction? I would have liked to see more justification
for the predictions.
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John Reekie, February 27th, 1998.