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Active Logic, Metacognitive Computation, and Mind
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Toward Human-Level Cognitive Adequacy
Our long-range aim is to design and implement common sense in a computer. Click here for details.

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If you would like to learn more about Active Logic, we suggest you start with one of our primers.


Conversational Adequacy

One major ongoing application of active logics is that of building a "conversationally adequate" dialogue agent (see paper on Conversational Adequacy -- one can view such an agent as having the ability to learn in McCarthy's sense of advice-taking, via conversation).

We have accomplished the following goals (see research report):

  1. process a few simple queries via voice input, requiring the use of negative introspection, in the context of the Rochester TRAINS system rewritten to employ active logic.
  2. handle apparent contradictions as in "Send the Boston train to NYC... [here the system does something]... No, send the Boston train to NYC" where the system has misunderstood the first request and so the user says "no" and repeats the same request. This requires the system to recognize that "no" refers to the systems response rather than to the user's first request.

The long-range research plan envisions the following steps:

  1. understand and generate spelling in metadialogue ("The word I am saying is spelled 'xyz'...")
  2. definitions and/or definitional queries ("What does the word 'xyz' mean?")
  3. more general metadialogue: You said, I said, you meant, I meant, etc
  4. reasoning about the physical and social worlds
  5. focus, attention and memory
  6. conversational adequacy