Struct tfidf::tf::LogNormalizationTf

pub struct LogNormalizationTf;

Log normalized weighting scheme for TF. Computes 1 + log (f) where f is the frequency of the term in the document.

Trait Implementations

impl Copy for LogNormalizationTf

impl Clone for LogNormalizationTf

fn clone(&self) -> LogNormalizationTf

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T> Tf<T> for LogNormalizationTf where
    T: ProcessedDocument, 

fn tf<K>(term: K, doc: &T) -> f64 where
    K: Borrow<T::Term>, 

Returns the weighted or unweighted term frequency (tf) for a single term within a document.