Struct RakeKeywordExtractor 

pub struct RakeKeywordExtractor { /* private fields */ }

RAKE (Rapid Automatic Keyword Extraction).

The algorithm:

1. Split text into candidate phrases using stopword delimiters.
2. Build a word co-occurrence matrix from those phrases.
3. Score each word as degree(word) / frequency(word).
4. Score each phrase as the sum of its word scores.

Implementations

impl RakeKeywordExtractor

pub fn new() -> Self

Create a new RAKE extractor with default settings.

pub fn with_min_phrase_len(self, len: usize) -> Self

Set the minimum phrase length (in words).

pub fn with_max_phrase_len(self, len: usize) -> Self

Set the maximum phrase length (in words).

pub fn extract(&self, text: &str, top_k: usize) -> Result<Vec<Keyword>>

Extract top_k keywords from text.

Trait Implementations

impl Default for RakeKeywordExtractor

fn default() -> Self

Returns the “default value” for a type.