SkLite-dart

• Porting Scikit-Learn models to Flutter *

Getting Started

The library uses pre-trained models using scikit-learn and sklite for python. Once built and exported, the models can be used in Flutter with ease. You need to load them inside your application and use them accordingly to your case:

You need to setup a local static directory where you can store the generated JSON file using sklite.

Put sklite in your pubspec.yaml file, import whichever model it is you intend to use and use the predict method as you would in scikit-learn. Use the loadModel in utils/dart.io for your application, the other functions are for development and testing only.

Supported models

IMPLEMENTATION	STATUS
KNeighborsClassifier	✓
SVC	✓
GaussianProcessClassifier
DecisionTreeClassifier	✓
RandomForestClassifier	✓
MLPClassifier	✓
AdaBoostClassifier
GaussianNB	✓
QuadraticDiscriminantAnalysis
BernoulliNB	✓
LinearSVC	✓

Usage

You first need to add the library to your project's pubspec.yaml. For the time being the library hasn't been published to pub.dev (should be soon enough though).

dependencies:
  sklite: ^0.0.1

Add a static assets directory inside your Flutter project:

flutter:
  uses-material-design: true
  assets:
    - assets/

Put the generated model using sklite for python in the specified directory

Import the library in your application and load the model:

import 'package:flutter/material.dart';
import 'package:sklite/SVM/SVM.dart';
import 'package:sklite/utils/io.dart';
import 'dart:convert';

void main() => runApp(new MaterialApp(
  home: new HomePage(),
  debugShowCheckedModeBanner: false)
);

class HomePage extends StatefulWidget {
  @override
  _HomePageState createState() {
    return new _HomePageState();
  }
}

class _HomePageState extends State<HomePage> {
  SVC svc;

  _HomePageState() {
    loadModel("assets/svcmnist.json").then((x) {
      this.svc = SVC.fromMap(json.decode(x));
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        // add any widget with svc.predict() callback
    );
  }