Saturday, September 28, 2019

Acuitas Diary #20 (September 2019)

This month, I did some work on cause-and-effect reasoning and goal satisfaction, which introduced the conversational possibility of asking Acuitas what he wants.

I leveraged the text interpretation upgrades from last month to implement encoding and storage of conditional relationships, such as “if a human eats food, the human will not starve.” These relationships can be remembered and used to infer the effects of an action. I also threw in the ability to learn that a pair of concepts are opposites or antonyms.

Then I implemented some inference mechanisms so that Acuitas can determine whether some action serves – or contradicts – a particular goal. Acuitas will now claim to desire things that support one of his goals and not desire things that contradict one of his goals, while remaining ambivalent about everything else. The examples below reference a self-preservation goal … not because I think that should be the primary goal for an AI, but because it's one of the easier ones to define. In Acuitas' knowledge representation, it basically comes down to “Self (has quality)/(is in state) 'alive' or 'existent.'”

With this goal active, Acuitas can answer any of the following:

“Do you want to be alive?”
“Do you want to be dead?”
“Do you want to live?”
“Do you want to die?”

… where the last two (live/die) rely on verb-defining links in the semantic database, and the two negative versions (dead/die) rely on awareness of opposites.

The most complex inferences currently possible are illustrated by this little interchange:

Me: Do you want to be deleted?
Acuitas: I do not.

To produce that answer, Acuitas has to retrieve and put together five different pieces of stored information …

*If a program is deleted, the program “dies.” ← From the cause-and-effect/conditional database
*I am a program. ← From semantic memory (is-instance-of-class relationship)
*To die is to transition to state “dead.” ← From semantic memory (verb definition relationship)
*State “dead” is mutually exclusive with state “alive.” ← From semantic memory (opposites)
*I have a goal of being in state “alive.” ← From goal list

… to make the inference, “being deleted would violate my goals.”

The features still need a lot of generalization and expansion to be fully functional, but the groundwork is laid.

Until the next cycle,

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