Struct TextRankKeywordExtractor 

pub struct TextRankKeywordExtractor { /* private fields */ }

TextRank-based keyword extraction.

Constructs a co-occurrence graph of words within a sliding window and applies the PageRank algorithm to score each word. Multi-word keywords are formed by merging adjacent high-scoring words.

Implementations

impl TextRankKeywordExtractor

pub fn new() -> Self

Create a new TextRank keyword extractor with default parameters.

pub fn with_window_size(self, size: usize) -> Result<Self>

Set the co-occurrence window size.

pub fn with_damping(self, d: f64) -> Result<Self>

Set the damping factor.

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

Extract top_k keywords from text.

Trait Implementations

impl Default for TextRankKeywordExtractor

fn default() -> Self

Returns the “default value” for a type.