TY - GEN
T1 - Ontology extraction from tables on the web
AU - Tanaka, Masahiro
AU - Ishida, Toru
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006
Y1 - 2006
N2 - Previous works on information extraction from tables make use of prior knowledge such as a cognition model of tables or lexical knowledge bases for specific domains. However, we often need to interpret table structures in each table differently and to treat lexicons in various domains to more fully utilize the broad range of tables available on the Web. The method proposed in this paper uses relations represented by structures to extract an ontology from a table. Once the interpretations of table structures are given by humans, the table structures are automatically generalized to extract relations from the whole table. We define a formal representation of generalized table structure based on the adjacency of cells and iterative structures. As the result of the comparison with a method proposed in a previous work, it was shown that our method is suited to extraction of various relations which are needed for descriptions in RDF/OWL.
AB - Previous works on information extraction from tables make use of prior knowledge such as a cognition model of tables or lexical knowledge bases for specific domains. However, we often need to interpret table structures in each table differently and to treat lexicons in various domains to more fully utilize the broad range of tables available on the Web. The method proposed in this paper uses relations represented by structures to extract an ontology from a table. Once the interpretations of table structures are given by humans, the table structures are automatically generalized to extract relations from the whole table. We define a formal representation of generalized table structure based on the adjacency of cells and iterative structures. As the result of the comparison with a method proposed in a previous work, it was shown that our method is suited to extraction of various relations which are needed for descriptions in RDF/OWL.
UR - http://www.scopus.com/inward/record.url?scp=33749392034&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749392034&partnerID=8YFLogxK
U2 - 10.1109/SAINT.2006.45
DO - 10.1109/SAINT.2006.45
M3 - Conference contribution
AN - SCOPUS:33749392034
SN - 0769525083
SN - 9780769525082
T3 - Proceedings - 2006 International Symposium on Applications and the Internet, SAINT 2006
SP - 284
EP - 290
BT - Proceedings - 2006 International Symposium on Applications and the Internet, SAINT 2006
T2 - 2006 International Symposium on Applications and the Internet, SAINT 2006
Y2 - 23 January 2006 through 27 January 2006
ER -