I think this question can only critically answered by someone expert on robotics, artificial intelligence or neural network. First of all, I am not sure if both can be compared.
a. brain is not a closed system. So, there are some implications to it. Read here: http://www.context.org/iclib/ic18/samples/
you will understand better.
b. Neurons are connected to each other. However, the number of connections to each other varies. Other than this, slight discrepancy, there are other things such as state-specific activities, evolution, and variation among brain morphology and functions.
Alas, the system is not solely deterministic. You enter the realm of complex system science: knowing the input and the ouput does not tell you about causal mechanisms (how).
I suggest you get interested in information integration theory.
Thanks for the feed back and the interesting leads. Yes, I was thinking along the lines of AI and some kind of Info Retrieval. Since Google, Yahoo, Bing, et al., keep their algorithms secret, I thought it might be interesting to find out by the output those search engines give. Is it possible that Google would answer a certain question the same way over and over again, establishing a pattern; in other words, to map Google's answers to a particular question... i.e., "by their fruits ye shall know them"?