信息扩散

Question

我遇到了 netlogo 问题：我想在网络中传播信息。一只乌龟拥有该信息，并以恒定概率将其提供给它的 link- 邻居。这是我到目前为止的代码：

to spread
  if (count turtles with [informed? = true] > .7 * count turtles) [stop]
  ask turtles with [ informed? = true ]
  [
      ask link-neighbors
      [
        if (random-float 1 <= 0.02)
          [
            set informed? true
             show-turtle
            set color green
          ]
        ]
      ]

  set num-informed count turtles with [informed? = true]
  tick
end

现在我想知道：我怎样才能确保每只乌龟只获得一次信息而不被通知两次？我试过 "if not informed?"，但那只给我错误消息。如果我希望信息以 2% 的恒定概率传播，我的命令 "if (random-float 1 <= 0.02)" 是否正确？

Answer 1

这应该有效（未测试）。假设您在设置海龟时已完成 set informed? FALSE。

to spread
  if (count turtles with [informed?] > .7 * count turtles) [stop]
  ask turtles with [ informed? ]
  [ ask link-neighbors with [ not informed? ] ; **<= my change**
    [ if (random-float 1 <= 0.02)
      [ set informed? true
        show-turtle
        set color green
      ]
    ]
  ]

  set num-informed count turtles with [informed?]
  tick
end

信息扩散

Information Diffusion

network-programming

netlogo

information-visualization