Work
Cognitive / spatial mapping prototype #2
22 Feb 2009, 10:05 AM
Prototype #2 is an extension of the first cognitive mapping experiment. As improvements, it has
- Four rooms
- Four coloured doors
- Capable of remembering sequences
In the exploration mode, the bot starts off in a room (can be any room) and keeps going from room to room, until it reaches the starting point. Whenever it is in a room that it hasn't been in before, the room is learned (on the fly, creating a cell assembly for that room). When the bot passes through a door and enters the next room, it learns the door, the next room and runs an association routine where by the previous room, the door and the current room are associated in a sequence. So for all the rooms:
- room1-door1-room2
- room2-door2-room3
- room3-door3-room4
- room4-door4-room1
In the
test mode, an external activation is applied on the target room (where you want the bot to go to). From the chain of sequences it has learned, the bot picks up the color of the door of the target room and goes to it!