RaymondKosala HendrikBlockeel Web Mining Research: A Survey CoRR cs.LG/0011033 2000 RaymondKosala HendrikBlockeel Web Mining Research: A Survey. SIGKDD Explorations 2 1-15 2000 R.Kosala H.Blockeel Web Mining Research: A Survey SIGKDD Explorations ACM 2 1-15 2000 R.Kosala H.Blockeel Web Mining Research: A Survey SIGKDD Explorations ACM 2 2000 RaymondKosala HendrikBlockeel Web mining research: a survey SIGKDD Explor. Newsl. ACM Press 2 1-15 2000 RaymondKosala HendrikBlockeel Web Mining Research: A Survey SIGKDD Explorations 2 1-15 2000 With the huge amount of information available online, the World Wide Web is a fertile area for data mining research. The Web mining research is at the cross road of research from several research communities, such as database, information retrieval, and within AI, especially the sub-areas of machine learning and natural language processing. However, there is a lot of confusions when comparing research efforts from different point of views. In this paper, we survey the research in the area of Web mining, point out some confusions regarded the usage of the term Web mining and suggest three Web mining categories. Then we situate some of the research with respect to these three categories. We also explore the connection between the Web mining categories and the related agent paradigm. For the survey, we focus on representation issues, on the process, on the learning algorithm, and on the application of the recent works as the criteria. We conclude the paper with some research issues. RaymondKosala HendrikBlockeel MauriceBruynooghe JanVan denBussche Information extraction from structured documents using k-testable tree automaton inference. Data Knowl. Eng. 58 129-158 2006 RaymondKosala MauriceBruynooghe JanVan denBussche HendrikBlockeel Information Extraction from Web Documents Based on Local Unranked Tree Automaton Inference. Morgan Kaufmann 403-408 2003 RaymondKosala JanVan denBussche MauriceBruynooghe HendrikBlockeel Information Extraction in Structured Documents Using Tree Automata Induction. Springer 2431 299-310 2002