According to the invention, originalinformation is coded in a mainchanneland a subchannel to generate asignalfortransmission, the subchannel being more robust with regard tochannel effects.
For Facebook, the hope is that by slashing clutter and making content more aesthetically pleasing, users will spend more minutes on the site, clicking through on stories and exploring both the main news-feed channel, and the sub-feeds that appeal to their particular interests.