60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
const DEFAULT_EPSILON = 0.01;
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export default class Supervisor {
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daemons = [];
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epsilon;
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constructor(daemons, epsilon = DEFAULT_EPSILON) {
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if (!daemons) {
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throw Error('Empty daemon list');
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}
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this.daemons = daemons.map(daemon => ({
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daemon: daemon,
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rate: 0,
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}));
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this.epsilon = epsilon;
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}
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predict(journal) {
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const predictions = this._createPredictions(journal);
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const ordered = this._sortPredictions(predictions);
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return ordered[0].value;
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}
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adjust(journal, humanValue) {
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const predictions = this._createPredictions(journal);
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for (const prediction of predictions) {
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if (prediction.value === humanValue) {
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prediction.daemon.rate += this._getAdjustmentWeight(
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journal.length
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);
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}
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prediction.daemon.daemon.adjust(journal, humanValue);
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}
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}
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_createPredictions(journal) {
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return this.daemons.map(daemon => ({
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daemon: daemon,
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power: daemon.daemon.power,
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rate: daemon.rate,
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value: daemon.daemon.predict(journal),
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}));
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}
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_sortPredictions(predictions) {
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return predictions.sort((result1, result2) => {
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const rateDiff = result2.rate - result1.rate;
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if (Math.abs(rateDiff) > 0.000001) {
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return rateDiff;
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}
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return result1.power - result2.power;
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});
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}
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_getAdjustmentWeight(stepNumber) {
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return Math.pow(1 + this.epsilon, stepNumber);
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}
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}
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