@syntest/search
Version:
The common core of the SynTest Framework
59 lines • 2.04 kB
JavaScript
;
/*
* Copyright 2020-2021 Delft University of Technology and SynTest contributors
*
* This file is part of SynTest Framework - SynTest Core.
*
* 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.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.RandomSearch = void 0;
const logging_1 = require("@syntest/logging");
const SearchAlgorithm_1 = require("./SearchAlgorithm");
/**
* Random Search algorithm that adds new encodings when these explore a new area of the search domain.
*
* @author Mitchell Olsthoorn
*/
class RandomSearch extends SearchAlgorithm_1.SearchAlgorithm {
/**
* Constructor.
*
* @param encodingSampler The encoding sampler
*/
constructor(objectiveManager, encodingSampler) {
super(objectiveManager);
RandomSearch.LOGGER = (0, logging_1.getLogger)("RandomSearch");
this._encodingSampler = encodingSampler;
}
/**
* @inheritDoc
* @protected
*/
_initialize() {
RandomSearch.LOGGER.debug("Initializing");
}
/**
* @inheritDoc
* @protected
*/
async _iterate(budgetManager, terminationManager) {
// Sample a new random encoding
const randomEncoding = this._encodingSampler.sample();
this._population = [randomEncoding];
// Evaluate the new encoding
await this._objectiveManager.evaluateMany(this._population, budgetManager, terminationManager);
}
}
exports.RandomSearch = RandomSearch;
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