graduate school of informatics, kyoto university...
TRANSCRIPT
Information Extraction based Approach for the NTCIR-9 1CLICK Task Makoto P. Kato Meng Zhao Kosetsu Tsukuda Yoshiyuki Shoji
Takehiro Yamamoto Hiroaki Ohshima Katsumi Tanaka Graduate School of Informatics, Kyoto University
query
Methods multi class SVM
Attribute-based
Sentence-based
Attribute name Value
Country USA
Residence Las Vegas, Nevada, U.S.
Andre Agassi
The position of a sentence in a section
RelativePosition
Hayao Miyazaki ContainsQuery
query: Kyoto Royal Hotel
www.royalhotel.com ＋
address OR access OR …
Table based extraction etc.
check in 15:00
check out 10:00
Check in : 15:00 Check out : 10:00
(Yahoo! Japan Web search API)
query: hospitality
“hospitailty towa”
(Yahoo! Japan Web search API)
S = {s1, s2, s3, …., sn}
s1
LexRank
s2 sn
s3 Sn-1
query: Which is taller, Tsutenkaku or Ustunomiya tower?
Yahoo! Chiebukuro
Q1 Q2
BA2
Q3
BA3 BA1
si : hospitality towa …
Summarized Text
The object identification problem should be tackled (e.g. Kanazawa University) QA queries achieved high score only when exactly the same questions are available
Results Which is taller, Tsutenkaku or Utsunomiya tower?
Where is Yumura-onsen?
Kanazawa University