Guizhen Yang, I. V. Ramakrishnan, Michael Kifer. On the complexity of schema inference from web pages in the presence of nullable data attributes. In Proceedings of the 2003 ACM CIKM International Conference on Information and Knowledge Management, New Orleans, Louisiana, USA, November 2-8, 2003. pages 224-231, ACM, 2003. [doi]
Abstract is missing.