Simplest AI Trick in the BookNormalised Tunable Sigmoid FunctionDino Dini NHTV University of Applied Sciences
Normalized Values Are UsefulFor example:      ●   Utility calculations      ●   Input management      ●   Control systems ...
Analog Input           -1                0                1     Abstract away the device dependent positional values     (...
Example:Analog Input - Left / Right Rotation   Input     1024                  1                     Normalizer   Device  ...
Example:Analog Input - Left / Right Rotation   Input     1024                  1                     Normalizer   Device  ...
Linear relationship     Degrees rotation per frame                            Control input (left - right)
Linear relationship     Degrees rotation per frame                                                           I want greate...
Linear relationship     Degrees rotation per frame                            Control input (left - right)
Linear relationship     Degrees rotation per frame                                                           I also want f...
Linear relationship     Degrees rotation per frame                                                                    Full...
Example:Analog Input - Left / Right Rotation   Input        1024                      1                        Normalizer ...
Example:Analog Input - Left / Right Rotation   Input        1024                      1                        Normalizer ...
Sigmoid function?
Logit function?
Normalised Tunable (half) SigmoidFunction?
Normalised Tunable (half) SigmoidFunction?                                    k = 0.2
Normalised Tunable (half) SigmoidFunction?                                    k = 0.01
Normalised Tunable (half) SigmoidFunction?                                    k=2
Normalised Tunable (half) SigmoidFunction?                                    k = -1.2
Normalised Tunable (half) SigmoidFunction?                                    k = -1.01
Normalised Tunable (half) SigmoidFunction?                                    k = -3
Normalised Tunable Sigmoid Function                                k = 0.2
Normalised Tunable Sigmoid Function                            Thank you
Upcoming SlideShare
Loading in …5
×

Simplest ai trick gdc2013 dino v2 (1)

2,329 views

Published on

0 Comments
2 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,329
On SlideShare
0
From Embeds
0
Number of Embeds
260
Actions
Shares
0
Downloads
13
Comments
0
Likes
2
Embeds 0
No embeds

No notes for slide

Simplest ai trick gdc2013 dino v2 (1)

  1. 1. Simplest AI Trick in the BookNormalised Tunable Sigmoid FunctionDino Dini NHTV University of Applied Sciences
  2. 2. Normalized Values Are UsefulFor example: ● Utility calculations ● Input management ● Control systems ● Tunable parameters
  3. 3. Analog Input -1 0 1 Abstract away the device dependent positional values (0 to 255? -1024 to 1024?) and normalise. Normalised values are much easier to work with.
  4. 4. Example:Analog Input - Left / Right Rotation Input 1024 1 Normalizer Device -1024 -1 Movement 5 Rotation Degrees per Driver -5 Frame
  5. 5. Example:Analog Input - Left / Right Rotation Input 1024 1 Normalizer Device -1024 -1 Movement 5 Rotation Degrees per Driver -5 Frame
  6. 6. Linear relationship Degrees rotation per frame Control input (left - right)
  7. 7. Linear relationship Degrees rotation per frame I want greater sensitivity Control input (left - right)
  8. 8. Linear relationship Degrees rotation per frame Control input (left - right)
  9. 9. Linear relationship Degrees rotation per frame I also want full range Control input (left - right)
  10. 10. Linear relationship Degrees rotation per frame Full Range Greater sensitivity Control input (left - right)
  11. 11. Example:Analog Input - Left / Right Rotation Input 1024 1 Normalizer Device -1024 -1 Sigmoid 1 5 Rotation Movement like Degrees per -1 Driver -5 function Frame
  12. 12. Example:Analog Input - Left / Right Rotation Input 1024 1 Normalizer Device -1024 -1 Sigmoid 1 5 Rotation Movement like Degrees per -1 Driver -5 function Frame k
  13. 13. Sigmoid function?
  14. 14. Logit function?
  15. 15. Normalised Tunable (half) SigmoidFunction?
  16. 16. Normalised Tunable (half) SigmoidFunction? k = 0.2
  17. 17. Normalised Tunable (half) SigmoidFunction? k = 0.01
  18. 18. Normalised Tunable (half) SigmoidFunction? k=2
  19. 19. Normalised Tunable (half) SigmoidFunction? k = -1.2
  20. 20. Normalised Tunable (half) SigmoidFunction? k = -1.01
  21. 21. Normalised Tunable (half) SigmoidFunction? k = -3
  22. 22. Normalised Tunable Sigmoid Function k = 0.2
  23. 23. Normalised Tunable Sigmoid Function Thank you

×