14. The method of claim 13 , wherein the language statistics analyzing step further comprises: calculating language statistics information for article portions in earlier pages than the page having the first block segment; and determining a probability that the first block segment in the candidate continuing article portion has a continuing article portion based on the calculated earlier language statistics information.
17. The method of claim 14 , wherein the language statistics information comprises word frequency information, and the continuation language statistics analyzing step includes calculating match scores based on word frequencies in text in the first block segment and text in the article portions on earlier pages.