AxiomaticF1EXP

F1EXP is defined as Sum(tf(term_doc_freq)*ln(docLen)*IDF(term)) where IDF(t) = pow((N+1)/df(t), k) N=total num of docs, df=doc freq

Constructors

constructor(s: Float, k: Float = 0.35f)

Constructor setting s only, letting k and queryLen to default

constructor()

Default constructor

True if overlap tokens (tokens with a position of increment of zero) are discounted from the document's length.

Computes the normalization value for a field at index-time.

open override fun scorer(boost: Float, collectionStats: CollectionStatistics, vararg termStats: TermStatistics): Similarity.SimScorer

Compute any collection-level weight (e.g. IDF, average document length, etc) needed for scoring a query.

open override fun toString(): String

Name of the axiomatic method.