Struct HSModel 

pub struct HSModel {
    pub ham_bow: BagOfWords,
    pub spam_bow: BagOfWords,
}

A model which contains 2 BagOfWords, one containing known spam, and the other known ham.

let ham_bow = BagOfWords::from("hello there how are you");
let spam_bow = BagOfWords::from("I have an offer you won't be able to pass up!!!");
let model = HSModel::new().add_spam_bow(spam_bow).add_ham_bow(ham_bow);

Fields

ham_bow: BagOfWords

BagOfWords that are known to be found in non-spam (ham) text.

spam_bow: BagOfWords

BagOfWords that are know to be found in spam text.

Implementations

impl HSModel

pub fn new() -> Self

Create a new empty model, with no training data.

let model = HSModel::new(); //returns an empty model.

pub fn add_spam_bow(self, spam_bow: BagOfWords) -> Self

Builder pattern for adding a spam_bow with the combine method.

let model = HSModel::new().add_spam_bow(spam_bow).add_ham_bow(ham_bow); //builder pattern

pub fn add_ham_bow(self, ham_bow: BagOfWords) -> Self

Builder pattern for adding a ham_bow with the combine method.

let model = HSModel::new().add_ham_bow(ham_bow).add_spam_bow(spam_bow); //builder pattern

pub fn from_bows(ham_bow: BagOfWords, spam_bow: BagOfWords) -> Self

Create a HSModel from a ham_bow and a spam_bow.

let model = HSModel::from_bows(ham_bow, spam_bow);

pub fn text_spam_probability(&self, text: &str) -> Probability

Returns the probability that a slice of text is spam, based on the model. Read about how this is calulated here on the Naive Bayes Spam Filtering Wikipedia Page

let spam_probability = model.text_spam_probability("Respond fast! I have an offer of a lifetime!"); // return value between [0.0, 1.0]

pub fn write_to_json(&self, file_path: &str) -> Option<()>

Serializse HSModel to a compact json string and write it to file_path. This write is destructive.

model.write_to_json("test_resources/test_models/model.json").expect("Write unsucessful");

pub fn read_from_json(file_path: &str) -> Option<Self>

read a json string from file_path and deserialize it to HSModel.

let model = HSModel::read_from_json("test_resources/test_models/model.json").unwrap();

Trait Implementations

impl Clone for HSModel

fn clone(&self) -> HSModel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for HSModel

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for HSModel

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for HSModel

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.