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网络的价值
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Reed's law - Wikipedia, the free encyclopedia
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Reed's law is the assertion of David P. Reed that the utility of large networks, particularly social networks, can scale exponentially with the size of the network.
The reason for this is that the number of possible sub-groups of network participants is
, where N is the number of participants.
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Sarnoff's law - Wikipedia, the free encyclopedia
- Sarnoff's law states that the value of a broadcast network is proportional to the number of viewers. It is attributed to David Sarnoff.
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Metcalfe's law - Wikipedia, the free encyclopedia
- Metcalfe's law states that the value of a telecommunications network is proportional to the square of the number of users of the system (n²).
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Collaborative learning-work - Wikipedia, the free encyclopedia
- Collaborative Learning-Work was a concept first presented by Dr. Charles Findley in the 1980s as part of his research on future trends and directions. "Collaborative Learning-Work" refers to processes, methodologies and environments in which professionals engage in a common task, in which individuals depend on and are accountable to each other. Many facets of learning-work dialogue are augmented or conducted exclusively in a virtual, computer-supported mediated environment.
- The goal of collaborative learning work is the creation of a mutual knowledge structure which is derived from group consensus
- Creation of shared knowledge structures involves symbolic interaction rather than manipulation of raw materials
- The use of symbols to create a shared knowledge structure is a primary focus of collaborative learning-work.
- If we need workers who can think independently and solve non-routine tasks, then we must start by creating the type of learning-work environments that foster innovation, independent thinking, and creative problem-solving
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Posted from Diigo. The rest of my favorite links are here.
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