Extracting logical structures from HTML tables

Yeon Seok Kim, Kyong Ho Lee

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)


While HTML is mainly designed for the visual rendering of Web documents, XML is widely accepted as a standard format to process and manage information. In particular, it can embed the information of logical structures. However, in order to utilize XML, the logical structures of HTML tables should first be extracted and transformed into XML representations. This paper presents an efficient method for the process, which consists of two phases: area segmentation and structure analysis. The area segmentation cleans up tables and segments them into attribute and value areas by checking visual and semantic coherency. The hierarchical structure between attribute and value areas is then analyzed and transformed into an XML representation using a proposed table model. Experimental results with 1180 HTML tables show that the proposed method performs better than conventional methods, resulting in an average accuracy of 86.7%.

Original languageEnglish
Pages (from-to)296-308
Number of pages13
JournalComputer Standards and Interfaces
Issue number5
Publication statusPublished - 2008 Jul

Bibliographical note

Funding Information:
This work was supported in part by the Yonsei University Research Fund of 2006.

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Science(all)
  • Hardware and Architecture
  • Computer Science Applications
  • Law


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