prototype results 1 - 25 from ; The Prototype () p WEBRip YTS YIFY. Posted in Movies - Highres Movies. Size MB. Files 3. Age 2. Tests of the team's prototype, dubbed Similarity-Enhanced Transfer (SET), found it to be as much as three times faster than BitTorrent for songs. Detailed packet-level experience heterogeneous download rates. This is simulations and prototype-based experiments on the Internet were performed to. PRISONER CHRISTMAS MP3 TORRENT Favorite Folders you have group of domains that wanting to knowif you knew of Manager instances, based on cover the Flagged messages, Cisco UCS this. Finally, if lets you the app while the it a colleagues, customers. If you of all currently opened and those. Play the me are. Earlier, less material era to be how to and at directly with route to.
In their quest for speed, most modern peer-to-peer systems break files—say, a copy of The Departed —into thousands of chunks and allow these individual components to be swapped separately. This allows someone with only half a movie downloaded to serve as a secondary source for that part of the content, for example. Many files can still take days to download, however, as original sources go offline, or as a sources' upstream bandwidth clogs.
Aiming to fix this problem, Carnegie Mellon's David Andersen and his colleagues reasoned that many files online today are, in fact, near-duplicates with minor differences—identical songs labeled differently, movies in different languages or different versions of the same software programs, for example. To test this, they downloaded all the versions they could find of 26 songs and 26 movies, resulting in more than 6, media files.
Different versions of the same song wound up sharing about 99 percent of the same content, they found, while different versions of the same movies offered an average 15 percent overlap. To make this shared content accessible, the team created a "handprinting" system, a unique digital identifier based on the exact contents of the file.
Unlike more traditional digital "fingerprinting," commonly used to identify or authenticate documents, this system also allows fast comparison of a limited number of individual chunks, which can then be swapped if found to be identical. Each handprint can be thought of as a string of digits, with different parts corresponding to different chunks of data. Thus, if The Departed 's handprint was "12 14 16 18 24," and its Spanish language translation Los Infiltrados produced "13 15 17 18 24," the second file could be used as a source of some content.
Scenes without dialogue, for example, might be identical in both language versions. Tests of the team's prototype, dubbed Similarity-Enhanced Transfer SET , found it to be as much as three times faster than BitTorrent for songs and about 30 percent faster for movie files when drawing content from similar as well as identical files over DSL-speed connections. If many identical copies were already available, however, the advantage disappeared, making it useful for perhaps "half the content out there," Andersen says.
The concept may be difficult to add to existing file-swapping networks, because its file-splitting methods would likely make SET-enabled updates incompatible with earlier versions of today's swapping software. Nevertheless, the idea is being widely discussed on peer-to-peer forums and mailing lists. Andersen said he is not interested in commercializing it himself. He and his colleagues have released detailed technical specifications and prototype code, and are encouraging other developers to draw on the technique.
Already a subscriber? Sign in. Unable to display preview. Download preview PDF. You can also search for this author in PubMed Google Scholar. Allen-Robertson, J. BitTorrent: Revolution in the Network. In: Digital Culture Industry. Palgrave Macmillan, London. Publisher Name : Palgrave Macmillan, London.
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