“Intelligence has two parts, which we shall call the epistemological and the heuristic. The epistemological part is the representation of the world in such a form that the solution of problems follows from the facts expressed in the representation. The heuristic part is the mechanism that on the basis of the information solves the problem and decides what to do.
[…]
The right way to think about the general problems of metaphysics and epistemology is not to attempt to clear one's own mind of all knowledge and start with 'Cogito ergo sum' and build up from there. Instead, we propose to use all of our knowledge to construct a computer program that knows. The correctness of our philosophical system will be tested by numerous comparisons between the beliefs of the program and our own observations and knowledge.”

— John McCarthy

John McCarthy and Patrick J. Hayes. " Some Philosophical Problems from the Standpoint of Artificial Intelligence http://www-formal.stanford.edu/jmc/mcchay69.html", Sect. 2.1, Machine Intelligence 4, ed. Donald Michie (Elsevier, 1969), p. 463 ff., ISBN 0444197443
1960s

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John McCarthy 12

American computer scientist and cognitive scientist 1927–2011

Raymond Smullyan (1919–2017) American mathematician

An Epistemological Nightmare (1982) http://www.mit.edu/people/dpolicar/writing/prose/text/epistemologicalNightmare.html

“The principal way that cognitive science can contribute to epistemology, I claim, is to identify basic belief-forming, or problem-solving processes. Once identified, these processes would be examined by primary epistemology according to the evaluative dimensions and standards adduced in Part I.”

Alvin Goldman (1938) American philosopher

Alvin Goldman (1986), Epistemology and Cognition. p. 81

“Heuristic Search Hypothesis. The solutions to problems are represented as symbol structures. A physical symbol system exercises its intelligence in problem solving by search—that is, by generating and progressively modifying symbol structures until it produces a solution structure.”

Allen Newell (1927–1992) American cognitive scientist

Source: Computer Science as Empirical Inquiry: Symbols and Search (1975), p. 120.

“Every specific semiotics (as every science) is concerned with general epistemological problems.”

Umberto Eco book Semiotics and the Philosophy of Language

[O] : Introduction, 0.4
Semiotics and the Philosophy of Language (1984)
Context: Every specific semiotics (as every science) is concerned with general epistemological problems. It has to posit its own theoretical object, according to criteria of pertinence, in order to account for an otherwise disordered field of empirical data; and the researcher must be aware of the underlying philosophical assumptions that influence its choice and its criteria for relevance. Like every science, even a specific semiotics ought to take into account a sort of 'uncertainty principle' (as anthropologists must be aware of the fact that their presence as observers can disturb the normal course of the behavioral phenomena they observe). Notwithstanding, a specific semiotics can aspire to a 'scientific' status. Specific semiotics study phenomena that are reasonably independent of their observations.