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Equation 10 · Part 1 · Naive, Graph, and Agentic: A Systems Comparison of RAG Architectures

Symbol Z_k

Zk(x)\mathcal{Z}_k(x)
Zk\mathcal{Z}_k

What this part means

ZkZ_k is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

ZkZ_k is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

with retriever parameters η\eta and generator parameters θ\theta [ 1 ] . One retrieval call, one generation pass, and the entire system’s dependence on the corpus runs through that single set Zk(x)\mathcal{Z}_k(x) .

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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.

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Sources cited in the surrounding passage

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