Equation 5 · Part 1 · Comparing the Main Approaches to AI Agent Architecture
Symbol h_t
What this part means
whatever state the system has chosen to retain.
Its job in the formula
is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol h_t→Article meaning
Where the article explains it
where is the observation history, is whatever state the system has chosen to retain, and g is the task goal.
The passage around this formula
where is the observation history, is whatever state the system has chosen to retain, and g is the task goal. Nothing here is specific to language models; it is the generic shape of a controller. What actually distinguishes the four patterns below is not this equation but what each one does with : whether it is one growing…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
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Sources cited in the article section
These citations provide research context; check each source for the exact claim it supports.