This master's thesis from February 14, 2007 discusses integrating facility attribute information that exists across multiple websites. There are two approaches discussed. The first aims to improve accuracy of extracting attribute values from HTML documents by proposing a case-based method to transform HTML documents to XML documents. Experimental results showed this method achieved high precision. The second approach constructs an integrated rule for attribute values by composing rules to convert various expressions into a single expression. Facility attribute information was actually integrated from four accommodation reservation sites using the proposed integration technique.

1. 複合情報学専攻 修士論文 (2007 年 2 月 14 日)
Web サイトに存在する施設属性情報の統合に関する研究
複雑系工学講座 調和系工学研究室 修士 2 年 森 康真
A Study on Integration of Facility Information on Websites
Research Group of Complex Systems Engineering
Laboratory of Harmonious Systems Engineering
MC2 Yasunao Mori
Abstract: Recently, volume of tourism information on the WWW has increased, as the number of Web
pages on the WWW is rising rapidly. As for this information, it distributes and overlaps on various
websites. The expression of the attribute name and the attribute value is different on each site. Various
uses can be expected by integrating information. In this paper, the purpose is that extracting the attribute
name and the attribute value of facilities information described with HTML that exists on websites and
integrating them. There are two approaches for the purpose. The first approach is how to improve the
extraction accuracy of attribute value from the site. It pays attention to a series of HTML documents with
a large amount of facilities information. Cases-based transformation method from HTML documents to
XML ones using data type dealing with a series of HTML documents is proposed. The experimental
results show that the proposed method can transform from HTML documents to XML ones with a high
degree of precision. The second approach is construction of an integrated rule of attribute value. Those
expressions are integrated by composing the rule that converts several expressions into one kind of
expression. Facilities attribute information on four kinds of accommodations reservation sites were
actually integrated by using the proposal attribute information integration technique.
研究業績（査読付き学術論文，国際会議講演論文，国内講演論文等）
：
1. 森 康真， 山本 雅人， 大内 東， ” 複数事例を用いた HTML 文書から XML 文書へのラッピング”， FIT2006，
CD-ROM, pp.85-86, (2006. 9)
2. Yasunao Mori, Masahito Yamamoto, Azuma Ohuchi, “Cases-based Information Extraction from HTML using
Data Type”, ENTER2007, CD-ROM, pp.163-171, (2007. 1).