Transcript Aesthetically Evolved Virtual Pets PowerPoint Presentation

Aesthetically Evolved
Virtual Pets
Tom Ray
Zoology, University of Oklahoma
ATR Human Information
Processing Research Laboratories,
Kyoto
The Concept
Aesthetic, emotional, and empathetic
selection are applied to a derivative of Karl
Sims' Evolved Virtual Creatures.
The resulting Creatures can be beautiful or
strange, and provoke strong reactions in
human observers.
It may be possible to evolve virtual pets to
which humans can form strong emotional
bonds.
Directed Graph Bodies
Neural Circuitry
Sensors
Processors
Effectors
Randomly Connected
19 Sensors
Time
Joint Yaw
Joint Pitch
Joint Roll
X Position
Y Position
Z Position
X Velocity
Y Velocity
Z Velocity
Red Color Value
Green Color Value
Blue Color Value
X Angular Velocity
Y Angular Velocity
Z Angular Velocity
X Force
Y Force
Z Force
83 Processors
22 Leaves
The 19 sensors
Random
Constant
Oscillator
34 Unary Operations
The 7 color effectors
Sine
Cosine
Exponent
Absolute value
etc.
27 Binary Operations
Add
Subtract
Multiply
Divide
Modulus
And
Not
Or
Greater
Equal
etc.
Effectors
3 Joint Actuators
Yaw
Pitch
Roll
7 Color Effectors
Red
Green
Blue
Red & Green
Green & Blue
Blue & Red
Red & Green & Blue
Ray’s Creatures
Coming Enhancements
Genome editor
Hybrid GA / aesthetic selection
Co-evolutionary scenarios
Sims’ Automated Evolution
Karl Sims used a GA to automate
evolution
With selection for:
Swimming speed
Crawling/walking speed
Jumping height
Ability to follow
Sims’ Co-evolution
Karl Sims used GA selection for
possession of a block
to create a co-evolutionary scenario
Ray’s Co-evolution
Rather than using GA selection for
competition
I will evolve my creatures to love
By selecting for:
Moving towards one another
Maximum surface contact
Continued relative movement while in
contact
More Information
Ray, T. S. 2000. Aesthetically Evolved Virtual
Pets. In: “Artificial Life 7 Workshop
Proceedings,” Carlo C. Maley and Eilis
Boudreau [eds.]. Proceedings of the Seventh
Artificial Life Conference. Pp. 158-161.
http://www.isd.atr.co.jp/~ray/pubs/alife7a/
[email protected]
The End