Using graph matching techniques to wrap data from PDF documents

Wrapping is the process of navigating a data source, semiautomatically extracting data and transforming it into a form suitable for data processing applications. There are currently a number of established products on the market for wrapping data from web pages. One such approach is Lixto [1], a product of research performed at our institute. Our work is concerned with extending the wrapping functionality of Lixto to PDF documents. As the PDF format is relatively unstructured, this is a challenging task. We have developed a method to segment the page into blocks, which are represented as nodes in a relational graph. This paper describes our current research in the use of relational matching techniques on this graph to locate wrapping instances. Categories and Subject Descriptors: I.7.5 [Document and Text Processing]: Document Capture--document analysis; H.3.3 [Information Systems]: Information Search and Retrieval General Terms: Algorithms, Experimentation

• Type: Conference
• Year: 2006
• Where: WWW
• Authors: Tamir Hassan, Robert Baumgartner
• Keywords: Data Processing Applications, Internet Technology, Relational Matching Techniques, Wrapping Functionality, WWW 2006