Property K1

Namespace

LMKit.Retrieval.Bm25

Assembly

LM-Kit.NET.dll

K1

Gets or sets the BM25 term saturation parameter.

public float K1 { get; set; }

Property Value

float

A non-negative value. Default is 1.2.

Examples

// Increase K1 to give more weight to repeated terms.
var bm25 = new Bm25RetrievalStrategy { K1 = 2.0f };
ragEngine.RetrievalStrategy = bm25;

Remarks

Higher values give more weight to repeated term occurrences within a document. A value of 0 reduces BM25 to a binary presence/absence model.