Struct ContentBasedRecommender 

pub struct ContentBasedRecommender { /* private fields */ }

Content-based recommender using vector similarity

Recommends items similar to those the user has liked. Fast and works well for cold-start problems.

Implementations

impl ContentBasedRecommender

pub fn new() -> Self

Create new content-based recommender

pub fn add_item( &mut self, id: impl Into<String>, vector: Vec<f32>, metadata: Metadata, ) -> Result<()>

Add item to catalog

pub fn recommend( &self, preferences: &[UserPreference], top_k: usize, ) -> Result<Vec<Recommendation>>

Get recommendations based on user preferences

Arguments

• preferences - User’s rated items
• top_k - Number of recommendations to return

pub fn similar_items( &self, item_id: &str, top_k: usize, ) -> Result<Vec<Recommendation>>

Get similar items to a given item

Trait Implementations

impl Clone for ContentBasedRecommender

fn clone(&self) -> ContentBasedRecommender

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ContentBasedRecommender

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ContentBasedRecommender

fn default() -> Self

Returns the “default value” for a type.