Struct UserProfile 

pub struct UserProfile {
    pub user_id: u64,
    pub category_scores: HashMap<String, f64>,
    pub liked_ids: Vec<u64>,
    pub disliked_ids: Vec<u64>,
    pub interaction_count: u64,
    /* private fields */
}

Per-user interest profile derived from interaction history.

Fields

user_id: u64

Identifier of the user this profile belongs to.

category_scores: HashMap<String, f64>

Accumulated weighted scores per content category.

Positive scores indicate interest; negative scores indicate aversion.

liked_ids: Vec<u64>

Result IDs that have a net positive score across all interactions.

disliked_ids: Vec<u64>

Result IDs that have a net negative score across all interactions.

interaction_count: u64

Total number of interactions recorded for this user.

Implementations

impl UserProfile

pub fn new(user_id: u64) -> Self

Create a new, empty profile for the given user.

pub fn preferred_categories(&self) -> Vec<String>

Returns categories with a score above 0.5, sorted by score descending.

pub fn aversion_categories(&self) -> Vec<String>

Returns categories with a score below -0.5, sorted by score ascending (most averse first).

Trait Implementations

impl Clone for UserProfile

fn clone(&self) -> UserProfile

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UserProfile

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

Formats the value using the given formatter.