Elaine Raybourn discusses early efforts to create a system that would place people in proximity according to their interests and activities. But in the development of such a system in ADL's Personal Assistant for Learning (PAL) she notes that such a system needs to be culturally aware and act as a mediating agent, 'introducing' people based on context (you may be interested in the U.S. procurement request for research on what are essentially personal learning environments). This would come in the form of "feedback from our interactions in virtual, digital, computer-mediated, or electronic settings." These are based on "footprints" left as we navotage the electronic environment and which are interpreted as subtle cues created and detected by cultrally aware interactive avatars.
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