A Marrian model of unity/integration
- The computational level is the privileged level of explanation.
Problem for Marr approach
- It cannot work as a general model of COG. Marr’s model is only
applicable to modular systems.
It requires an indo-processing task sufficiently circumscribed
to be solvable algorithmically. -> Domain-specificity.
Algorithms must be computationally tractable – there can
only be a limited number of representational primitives and
parameters (on pain of frame problem)
Computational analysis and modularity
- Basic idea – modular systems are specialized for carrying out very
specific info-processing tasks.
- Two versions:
- Differ over the extent to which the system (…)
Examples of modules
Marr’s early visual system
Syntactic parsing of heard utterances
modularity and computational analysis
- Computational analysis can only work for systems performing (…)
Setting the stage
- Last (…)
The perceptron: an early neural net