Struct Rake 

pub struct Rake {
    pub min_word_len: usize,
    pub max_phrase_words: usize,
    /* private fields */
}

RAKE (Rapid Automatic Keyword Extraction).

Splits text into candidate phrases using stop-words as delimiters, then scores each phrase using a word co-degree / frequency ratio.

Example

use scirs2_text::keywords::Rake;

let rake = Rake::new();
let keywords = rake.extract("Rust is a systems programming language.", 5).unwrap();
assert!(!keywords.is_empty());

Fields

min_word_len: usize

Minimum word length (shorter words are treated as stop-words).

max_phrase_words: usize

Maximum number of words in an extracted phrase.

Implementations

impl Rake

pub fn new() -> Self

Create a new RAKE extractor with the built-in English stop-word list.

pub fn with_stop_words(words: Vec<String>) -> Self

Create a RAKE extractor with a custom stop-word list.

pub fn extract(&self, text: &str, top_n: usize) -> Result<Vec<(String, f64)>>

Extract up to top_n keyword phrases from text.

Returns (phrase, score) pairs sorted by score descending.

Trait Implementations

impl Default for Rake

fn default() -> Self

Returns the “default value” for a type.