Equation 19 · Part 1 · Naive, Graph, and Agentic: A Systems Comparison of RAG Architectures
Symbol Q
What this part means
the when.
Its job in the formula
Q 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 Q→Article meaning
Where the article explains it
When Q is small — a corpus queried rarely, or one still being explored — dominates and the naive or hybrid architectures are cheaper by a wide margin, because they pay nothing until a query arrives.
The passage around this formula
When Q is small — a corpus queried rarely, or one still being explored — dominates and the naive or hybrid architectures are cheaper by a wide margin, because they pay nothing until a query arrives. When Q is large against a stable corpus, the fixed term is driven down toward zero and…
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A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.
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Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.