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Optimizing Screen Design for Natural Language-Based Knowledge Editing
A study that is still in an early stage focuses
on the system WYSIWYM, which was developed by Dr. Richard Power
of the University of Brighton (see http://www.itri.bton.ac.uk/projects/WYSIWYM/wysiwym.html).
The system allows an expert in a given domain to encode knowledge
in a language-independent form by formulating English-language propositions
with the help of a sophisticated interface that includes menus and
hyperlinks. An example of a general screen design issue raised by
this system is the question of when it is advisable to supply an
explicit abstract label (e.g., “Pronouns” or “Noun
Patterns”) for a group of expressions from which the user
can select–as opposed to simply letting the expressions speak
for themselves. Analyses of data from the first few subjects have
shown that this is one more issue on which eye tracking can yield
valuable information.
The study was performed with the ASL
Model 504 remote eye tracker; see the
videos recorded during
the eye tracking experiment.
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