5. The method of claim 4 , wherein determining the candidate similarity score further includes: determining that an individual word on the first page matches an individual word on the second page; and adding a second amount to the candidate similarity score based on the determination that the individual word on the first page matches the individual word on the second page, wherein the second amount is less than the first amount.
5. The method of claim 4 , wherein determining the candidate similarity score further includes: determining that an individual word on the first page matches an individual word on the second page; and adding a second amount to the candidate similarity score based on the determination that the individual word on the first page matches the individual word on the second page, wherein the second amount is less than the first amount. 6. The method of claim 5 , wherein determining the candidate similarity score further includes: determining that an additional word on the second page is a synonym of an additional word on the second page; and adding a third amount to the candidate similarity score based on the determination that the additional word on the second page is a synonym of the additional word on the second page.