We describe a set of
<term>
supervised machine learning experiments
</term>
centering on the construction of
<term>
statistical models
</term>
of
<term>
WH-questions
</term>
.
#2142We describe a set of supervised machine learning experiments centering on the construction of statistical models of WH-questions .
model,1-2-P01-1070,ak
These
<term>
models
</term>
, which are built from
<term>
shallow linguistic features
</term>
of questions , are employed to predict target variables which represent a
<term>
user 's informational goals
</term>
.
#2145These models , which are built from shallow linguistic features of questions, are employed to predict target variables which represent a user's informational goals.
model,11-3-P01-1070,ak
We report on different aspects of the
<term>
predictive performance
</term>
of our
<term>
models
</term>
, including the influence of various training and testing factors on
<term>
predictive performance
</term>
, and examine the relationships among the target variables .
#2182We report on different aspects of the predictive performance of our models , including the influence of various training and testing factors on predictive performance, and examine the relationships among the target variables.