Equation 24 · Part 2 · Naive, Graph, and Agentic: A Systems Comparison of RAG Architectures
subscript
subscript
What this part means
The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.
Its job in the formula
A subscript distinguishes a version, component, step, or member of a quantity. It does not automatically mean multiplication.
Full expression→subscript→Article meaning
The passage around this formula
is also the family’s most visible weakness, and the project’s own subsequent work treats it as one worth solving rather than downplaying, which is worth reading as a vendor’s own admission of the problem’s severity. Microsoft’s follow-up post introducing LazyGraphRAG reports — as a vendor claim about the vendor’s own systems, not an independently audited benchmark — that the original approach’s indexing cost was steep enough to motivate a redesign, and states that LazyGraphRAG’s indexing cost is on par with plain vector-based RAG and roughly one part in a thousand of full GraphRAG’s, while its global-search query cost is reported as roughly seven hundred times lower than the…
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 →
Sources cited in the surrounding passage
These citations provide research context; check each source for the exact claim it supports.