23 SEMANTIC FRAMES AND ANSWER TEMPLATES. INRETRIEVAL SYMPOSIUM (AIRS...

7-23 semantic frames and answer templates. In

Retrieval Symposium (AIRS2004), pages 345–348.

addition, we learned the question focus classifier

from training examples of about 100 questions for

P. Martin, F. Crabbe, S. Adams, E. Baatz, and

the each domain. All information for the ques-

N. Yankelovich. 1996. Speechacts: a spoken lan-guage framework.IEEE Computer, 7(29):33–40.

tion answering was automatically extracted using

the Web IE module of K-QARD, which was also

J. Ross Quinlan. 1993. C4.5: Programs for Machine

learned from training examples consisting of sev-

Learning. Morgan Kaufmann Publishers Inc., San

eral annotated Web pages of the target Web site. It

Francisco, CA, USA.

took about a half of week for two graduate stu-