> In the realm of remote data backup, this is *highly* useful, because > people often move files around, rename them, make extra local copies, > etc. None of that will be optimized away by rsync (each copy and > rename has to be uploaded from scratch), but virtually all can be > detected with a SET-like approach. Of course, people also tend to > email work documents around to each other, and each recipient also > might save the file and back it up, and then the savings that an > approach like this brings really start to show.
U. Manber. Finding similar files in a large file system. In Proc. of the USENIX Winter Technical Conf., 1994. On 4/13/07, Justin Chapweske <[EMAIL PROTECTED]> wrote:
Alen, That is a good use case. I would love to see a paper written on it. On Apr 12, 2007, at 3:24 PM, Alen Peacock wrote: > On 4/12/07, Justin Chapweske <[EMAIL PROTECTED]> wrote: >> The major use case for this seems to be where multiple people upload >> fairly similar versions of the same file. This approach might be >> interesting technically, but I don't think this is useful for many >> real-world use cases beyond piracy. > > Actually, there are *plenty* of use cases beyond illicit > file-sharing. I'll give you one: > > In the realm of remote data backup, this is *highly* useful, because > people often move files around, rename them, make extra local copies, > etc. None of that will be optimized away by rsync (each copy and > rename has to be uploaded from scratch), but virtually all can be > detected with a SET-like approach. Of course, people also tend to > email work documents around to each other, and each recipient also > might save the file and back it up, and then the savings that an > approach like this brings really start to show. > > Alen > http://www.flud.org > _______________________________________________ > p2p-hackers mailing list > [EMAIL PROTECTED] > http://lists.zooko.com/mailman/listinfo/p2p-hackers _______________________________________________ p2p-hackers mailing list [EMAIL PROTECTED] http://lists.zooko.com/mailman/listinfo/p2p-hackers
-- Regards ~Ravi _______________________________________________ p2p-hackers mailing list [EMAIL PROTECTED] http://lists.zooko.com/mailman/listinfo/p2p-hackers
