66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2019 Google LLC. All Rights Reserved.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
* =============================================================================
|
|
*/
|
|
|
|
require('@tensorflow/tfjs-node');
|
|
|
|
const http = require('http');
|
|
const socketio = require('socket.io');
|
|
const pitch_type = require('./pitch_type');
|
|
const sleep = require('./utils').sleep;
|
|
|
|
const TIMEOUT_BETWEEN_EPOCHS_MS = 500;
|
|
const PORT = 8001;
|
|
|
|
async function run() {
|
|
const port = process.env.PORT || PORT;
|
|
const server = http.createServer();
|
|
const io = socketio(server);
|
|
let useTestData = true;
|
|
|
|
server.listen(port, () => {
|
|
console.log(`Running socket on port: ${port}`);
|
|
});
|
|
|
|
io.on('connection', (socket) => {
|
|
socket.on('test_data', (value) => {
|
|
useTestData = value === 'true' ? true : false;
|
|
});
|
|
|
|
socket.on('predictSample', async (sample) => {
|
|
console.log('received predict request');
|
|
io.emit('predictResult', await pitch_type.predictSample(sample));
|
|
});
|
|
});
|
|
|
|
io.emit('accuracyPerClass', await pitch_type.evaluate(useTestData));
|
|
await sleep(TIMEOUT_BETWEEN_EPOCHS_MS);
|
|
|
|
let numTrainingIterations = 10;
|
|
for (var i = 0; i < numTrainingIterations; i++) {
|
|
console.log(`Training iteration : ${i + 1} / ${numTrainingIterations}`);
|
|
await pitch_type.model.fitDataset(pitch_type.trainingData, { epochs: 1 });
|
|
io.emit('accuracyPerClass', await pitch_type.evaluate(useTestData));
|
|
await sleep(TIMEOUT_BETWEEN_EPOCHS_MS);
|
|
}
|
|
|
|
io.emit('trainingComplete', true);
|
|
console.log('training complete');
|
|
|
|
}
|
|
|
|
run();
|