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fix NPE during completeness calculation; refactor completeness calcul…
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abecto-core/src/main/java/de/uni_jena/cs/fusion/abecto/measure/Completeness.java
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| /*- | ||
| * Copyright © 2019-2022 Heinz Nixdorf Chair for Distributed Information Systems, | ||
| * Friedrich Schiller University Jena (http://www.fusion.uni-jena.de/) | ||
| * Copyright © 2023-2024 Jan Martin Keil ([email protected]) | ||
| * | ||
| * 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. | ||
| -*/ | ||
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| package de.uni_jena.cs.fusion.abecto.measure; | ||
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| import de.uni_jena.cs.fusion.abecto.Aspect; | ||
| import de.uni_jena.cs.fusion.abecto.Metadata; | ||
| import de.uni_jena.cs.fusion.abecto.ResourcePair; | ||
| import de.uni_jena.cs.fusion.abecto.vocabulary.AV; | ||
| import de.uni_jena.cs.fusion.abecto.vocabulary.OM; | ||
| import org.apache.jena.rdf.model.Model; | ||
| import org.apache.jena.rdf.model.Resource; | ||
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| import java.math.BigDecimal; | ||
| import java.math.RoundingMode; | ||
| import java.util.*; | ||
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| public class Completeness extends Ratio<Resource> { | ||
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| public Completeness() { | ||
| super(AV.marCompletenessThomas08, OM.one); | ||
| } | ||
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| public static Completeness calculate(SymmetricPerDatasetPairCount absoluteCoverage, PerDatasetCount deduplicatedCount) { | ||
| Set<ResourcePair> datasetPairs = getDatasetPairsWithSufficientData(absoluteCoverage, deduplicatedCount); | ||
| long totalPairwiseOverlap = calculateTotalPairwiseOverlap(datasetPairs, absoluteCoverage); | ||
| if (totalPairwiseOverlap != 0) { | ||
| BigDecimal estimatedPopulationSize = calculateEstimatedPopulationSize(datasetPairs, deduplicatedCount, totalPairwiseOverlap); | ||
| Set<Resource> datasets = ResourcePair.getResourcesOfPairs(datasetPairs); | ||
| return calculateCompleteness(datasets, deduplicatedCount, estimatedPopulationSize); | ||
| } | ||
| return new Completeness(); // empty | ||
| } | ||
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| private static Set<ResourcePair> getDatasetPairsWithSufficientData(SymmetricPerDatasetPairCount absoluteCoverage, PerDatasetCount deduplicatedCount) { | ||
| Set<ResourcePair> datasetPairs = new HashSet<>(absoluteCoverage.keySet()); | ||
| Set<Resource> datasetsWithDeduplicatedCount = deduplicatedCount.keySet(); | ||
| datasetPairs.removeIf(pair -> notBothContainedIn(pair, datasetsWithDeduplicatedCount)); | ||
| return datasetPairs; | ||
| } | ||
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| private static boolean notBothContainedIn(ResourcePair pair, Collection<Resource> collection) { | ||
| return !collection.contains(pair.first) || !collection.contains(pair.second); | ||
| } | ||
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| private static long calculateTotalPairwiseOverlap(Iterable<ResourcePair> datasetPairs, SymmetricPerDatasetPairCount absoluteCoverage) { | ||
| long totalPairwiseOverlap = 0L; | ||
| for (ResourcePair datasetPair : datasetPairs) { | ||
| if (absoluteCoverage.contains(datasetPair)) { | ||
| totalPairwiseOverlap += absoluteCoverage.get(datasetPair); | ||
| } | ||
| } | ||
| return totalPairwiseOverlap; | ||
| } | ||
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| private static BigDecimal calculateEstimatedPopulationSize(Iterable<ResourcePair> datasetPairs, PerDatasetCount deduplicatedCount, long totalPairwiseOverlap) { | ||
| BigDecimal estimatedPopulationSize = BigDecimal.ZERO; | ||
| for (ResourcePair datasetPair : datasetPairs) { | ||
| BigDecimal deduplicatedCount1 = BigDecimal.valueOf(deduplicatedCount.get(datasetPair.first)); | ||
| BigDecimal deduplicatedCount2 = BigDecimal.valueOf(deduplicatedCount.get(datasetPair.second)); | ||
| estimatedPopulationSize = estimatedPopulationSize.add(deduplicatedCount1.multiply(deduplicatedCount2)); | ||
| } | ||
| estimatedPopulationSize = estimatedPopulationSize.divide(BigDecimal.valueOf(totalPairwiseOverlap), SCALE, | ||
| RoundingMode.HALF_UP); | ||
| return estimatedPopulationSize; | ||
| } | ||
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| private static Completeness calculateCompleteness(Iterable<Resource> datasets, PerDatasetCount deduplicatedCount, BigDecimal estimatedPopulationSize) { | ||
| Completeness completeness = new Completeness(); | ||
| for (Resource dataset : datasets) { | ||
| BigDecimal numerator = BigDecimal.valueOf(deduplicatedCount.get(dataset)); | ||
| BigDecimal completenessOfDataset = numerator.divide(estimatedPopulationSize, SCALE, ROUNDING_MODE); | ||
| completeness.set(dataset, completenessOfDataset); | ||
| } | ||
| return completeness; | ||
| } | ||
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| public void storeInModel(Aspect aspect, Map<Resource, Model> outputModelsMap) { | ||
| for (Resource dataset : values.keySet()) { | ||
| Collection<Resource> otherDatasets = new HashSet<>(values.keySet()); | ||
| otherDatasets.remove(dataset); | ||
| Metadata.addQualityMeasurement(quantity, get(dataset), unit, dataset, variable, | ||
| otherDatasets, aspect.getIri(), outputModelsMap.get(dataset)); | ||
| } | ||
| } | ||
| } |
54 changes: 0 additions & 54 deletions
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abecto-core/src/main/java/de/uni_jena/cs/fusion/abecto/measure/PerDatasetRatio.java
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