document: First-order focused crawling This paper reports a new general framework of focused web crawling based on `` relational subgroup discovery '' . Predicates are used explicitly to represent the relevance clues of those unvisited pages in the crawl frontier , and then first-order classification rules are induced using subgroup discovery technique . The learned relational rules with sufficient support and confidence will guide the crawling process afterwards . We present the many interesting features of our proposed first-order focused crawler , together with preliminary promising experimental results .
doc_bio_tags: O B I O O O O O O O O O O O O O O B I I O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O