Brazma, A., Jonassen, I., Eidhammer, I., & Gilbert, D. (1995). Approaches to the automatic discovery of patterns in biosequences. Tech. rep., Department of Informatics, University of Bergen.

Carrasco, R. C., & Oncina, J. (1994). Learning stochastic regular grammars by means of a state merging method. Lecture Notes in Computer Science, 862**, 139.**
Chalupsky, H., et al. (2001). Electric elves: Applying agent technology to support human organizations. In *Proceedings of the Thirteenth Annual Conference on Innovative* Applications of Artificial Intelligence (IAAI-2001), Seattle, WA.

Cohen, W. W. (1999). Recognizing structure in web pages using similarity queries. In *Proc.*
of the 16th National Conference on Artificial Intelligence (AAAI-1999)**, pp. 59–66.**
Crescenzi, V., Mecca, G., & Merialdo, P. (2001a). Automatic **web information extraction**
in the roadrunner **system. In** *Proceedings of the International Workshop on Data* Semantics in Web Information Systems (DASWIS-2001).

Crescenzi, V., Mecca, G., & Merialdo, P. (2001b). RoadRunner**: Towards automatic data**
extraction from large web sites. In *Proceedings of the 27th Conference on Very Large* Databases (VLDB) **Rome, Italy.**
Dietterich, T., & Michalski, R. (1981). Inductive learning **of structural descriptions..** *Artificial Intelligence*, 16**, 257–294.**
Doorenbos, R. B., Etzioni, O., & Weld, D. S. (1997). A scalable comparison-shopping agent for the world-wide webs. In Proceeding of the First International Confence on Autonomous Agents, Marina del Rey.

Freitag, D., & Kushmerick, N. (2000). Boosted wrapper induction. In Proceedings of the 7th Conference on Artificial Intelligence (AAAI-2000)**, pp. 577–583. AAAI Press, Menlo**
Park, CA.

Goan, T., Benson, N., & Etzioni, O. (1996). A grammar inference algorithm for the world wide web.. In *Proceedings of AAAI Spring Symposium on Machine Learning in Information Access, Stanford University, CA*.

Hsu, C.-N., & Dung, M.-T. (1998). Generating finite-state transducers for semi-structured data extraction from the web. *Journal of Information Systems*, 23**, 521–538.**
Knoblock, C. A., Lerman, K., Minton, S., & Muslea, I. (2001a). Accurately and reliably extracting data from the web: A machine learning approach. IEEE Data Engineering Bulletin, 23 **(4), 33–41.**
Knoblock, C. A., Minton, S., Ambite, J. L., Muslea, M., Oh, J., , & Frank, M. (2001b).

Mixed-initiative, multi-source information assistants. In *The Tenth International* World Wide Web Conference (WWW10), Hong Kong.

Kushmerick, N. (1999). Regression testing for wrapper maintenance.. In Proceedings of the 14th National Conference on Artificial Intelligence (AAAI-1999).