ID means identity, so it's natural to assume that every page_id is unique.
The document says that "users can jump to arbitrary page on the web", and also "N outgoing edges where N is the number of pages on the web". So a page should include itself when it has no outgoing link.
Name: Heewon Lee
Hello. I have some questions regarding the specifications of the page ranking problem.
u
has no outgoing links, should we assume thatB_u
includesu
itself also? Or should we exclude the page?Thank you.