Information Aggregation Using the Caméléon# Web Wrapper

Abstract

Abstract. Caméléon# is a web data extraction and management tool that provides information aggregation with advanced capabilities that are useful for developing value-added applications and services for electronic business and electronic commerce. To illustrate its features, we use an airfare aggregation example that collects data from eight online sites, including Travelocity, Orbitz, and Expedia. This paper covers the integration of Caméléon# with commercial database management systems, such as MS SQL Server, and XML query languages, such as XQuery.

General Strategy for Querying Web Sources in a Data Federation Environment

“…This information is scattered inside the world fact book (see Figure 1), and first needs to be located and extracted. By using the Web wrapper, Cameleon# (Firat, Madnick, Yahaya, Kuan, & Bressan, 2005;Firat, Madnick, & Siegel, 2000) and its accompanied visual helper, Cameleon# Studio, we can wrap the CIA world fact book site using simple regular expressions and treat it as a very simple relational table as illustrated in Figures 2 and 3.…”

Comparison of Approaches for Gathering Data from the Web for Technology Trend Analysis

“…What we need is the ability to replace the manual process with a programmatic solution. 1 We have used three different types of wrapper tools/approaches in our project and in this short paper we will compare the pros and cons of each. The first tool, Cameleon#, is a C# based generic wrapper that wraps Web pages by encoding extraction rules in a text file.…”

“…Cameleon# [1] is a generic web wrapper developed by the MIT Context Interchange (COIN) group. Web wrappers in the COIN group are used to treat semi-structured web data as ordinary relational data sources that can be processed using the standard SQL query language (with some capability restrictions) as shown in Figure 2.…”

General Strategy for Querying Web Sources in a Data Federation Environment

“…This information is scattered inside the world fact book (see Figure 1), and first needs to be located and extracted. By using the Web wrapper, Cameleon# (Firat, Madnick, Yahaya, Kuan, & Bressan, 2005;Firat, Madnick, & Siegel, 2000) and its accompanied visual helper, Cameleon# Studio, we can wrap the CIA world fact book site using simple regular expressions and treat it as a very simple relational table as illustrated in Figures 2 and 3.…”