TION. B) THE ALGORITHM DESCRIBED IN THIS PAPER IS ANMANY OF THE PAPE...

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Khoa học BÁO CÁO KHOA HỌC ANSWER SENTENCE RETRIEVAL BY MATCHING DEPENDENCY PATHS ACQUIRED FROM QUESTION ANSWER SENTENCE PAIRS PDF
1.

tion. b) The algorithm described in this paper is an

Many of the papers cited earlier that use an ap-

answer extraction approach only. For paragraph

retrieval we use the same approach as for evalu-

proach similar to our baseline approach of course

ation set 1, see Section 7.1. However, in more

report much better results than Tables 7 and 8.

This however is not too surprising as the approach

than 20% of the cases, this method returns not

a single paragraph that contains both the answer

and at least one question keyword. In such cases,

the simple paragraph retrieval makes it close to

impossible for our algorithm to return the correct

answer.

Test Set

QuALiM

QASP

combined

increase

2002

0.503

0.117

0.524

4.2%

2003

0.367

0.062

0.390

6.2%

2004

0.426

0.127

0.451

5.7%

2005

0.373

0.144

0.389

4.2%

2006

0.341

0.088

0.358

5.0%