Neurl Netwoeks Flashcards
What is the retrograde motion & what’s the explanation toe it?
→ Helios & Gods driving chariots
What was the Copernican heliocentric model?
→ sun is the centre & we are around orbiting it
→ problem: did not predict as good as the previous theory
- went against religious belief
- did not predictthe correct path of planets
Keplers law of planetary motion
→sun at center
-Planets followed a elliptical orbit
→ follows the goals of science
What is thefundamental tradeoff in models?
Maximize explanatory power while min. Complexity
What is a complex system & its predictability?
Situations where there A lot of interacting parts
What is the butterfly effect
butterfly effect: sensitive dependencies on initial conditions which is very hard to obtain
What are quantitative models of cognition?
→ diff approaches dependson the lovel of details
What are the mathematical models of cog?
①fits model: how long it takes to make an action based on the distance of target.
What are the symbolic models focused on in the 1600’s?
→ mind a system manipulating symbols.
production rules: or if-then rule
These models weren’t explaining abstract explanation as how sound hits the ere & processed
-Focused on high level or symbolic level
What is the dynamical system models
Mind is a point moving through abstract mental space
→ things are along a continuum.
→ if neurons are firing in one pattern then its one thought
→ decisions aren’t all or none its male of continuum to choose
Hybrid models
→combining approaches ( symbolic & neural networks)
→ neural network model converts visual into letter or words then symbolic converts it into comprehensible answer or tell us a meaning
What is the artificial neural network?
-now do neurons work
Functionally → infant-integration →communication to other neurons
Integrate I fire model of neuron
→ input has strength associated
Strength: how many actions potential is the neuron firing
Weighted inputs summed togetherpassed through a a a function determining a level of an output
