Equation 13 · Part 1 · Naive, Graph, and Agentic: A Systems Comparison of RAG Architectures
Symbol k
What this part means
the smoothing constant.
Its job in the formula
k 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 k→Article meaning
Where the article explains it
Reciprocal rank fusion, which Cormack and colleagues introduced and showed outperforming both individual rankers and a Condorcet-style combination, ignores raw scores entirely and combines rank positions across retrievers R with a smoothing constant k ,
The passage around this formula
…Cormack and colleagues introduced and showed outperforming both individual rankers and a Condorcet-style combination, ignores raw scores entirely and combines rank positions across retrievers R with a smoothing constant k ,
Learn the underlying idea
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
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