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Matrix sparsity and typed matrix sparsity implementation
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48 changes: 48 additions & 0 deletions
48
metrics/src/main/java/hu/bme/mit/ga/metrics/impl/simple/MatrixSparsity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| package hu.bme.mit.ga.metrics.impl.simple; | ||
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| import hu.bme.mit.ga.adapters.GraphAdapter; | ||
| import hu.bme.mit.ga.adapters.GraphIndexer; | ||
| import hu.bme.mit.ga.base.data.ScalarData; | ||
| import hu.bme.mit.ga.metrics.AbstractGraphMetric; | ||
| import org.ejml.data.DMatrixRMaj; | ||
| import org.ejml.data.DMatrixSparseCSC; | ||
| import org.ejml.data.DMatrixSparseTriplet; | ||
| import org.ejml.ops.ConvertDMatrixStruct; | ||
| import org.ejml.simple.SimpleMatrix; | ||
| import org.ejml.sparse.csc.CommonOps_DSCC; | ||
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| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| public class MatrixSparsity extends AbstractGraphMetric<ScalarData<Double>> { | ||
| public MatrixSparsity() { | ||
| super("MatrixSparsity", new ScalarData<>()); | ||
| } | ||
| @Override | ||
| protected <N, T> void evaluateAll(GraphAdapter<N, T> adapter) { | ||
| GraphIndexer<N, T> indexer = adapter.getIndexer(); | ||
| int size = indexer.getSize(); | ||
| DMatrixSparseTriplet triplets = indexer.getAdjacencyMatrixEjmlUntyped(); | ||
| DMatrixSparseCSC A = ConvertDMatrixStruct.convert(triplets, (DMatrixSparseCSC) null); | ||
| DMatrixRMaj rowSum = new DMatrixRMaj(size, 1); | ||
| CommonOps_DSCC.sumRows(A,rowSum); | ||
| double d = SimpleMatrix.wrap(rowSum).elementSum(); | ||
| double n = size*size; | ||
| data.setValue(d/n); | ||
| } | ||
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| @Override | ||
| public List<Map<String, Object>> getTsvMaps(String[] header) { | ||
| final List<Map<String, Object>> values = new ArrayList<>(); | ||
| Map<String, Object> value = new HashMap<>(); | ||
| value.put(header[0], "MatrixSparsity"); | ||
| value.put(header[1], null); | ||
| value.put(header[2], null); | ||
| value.put(header[3], data.getValue()); | ||
| values.add(value); | ||
| return values; | ||
| } | ||
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| } |
54 changes: 54 additions & 0 deletions
54
metrics/src/main/java/hu/bme/mit/ga/metrics/impl/typed/TypedMatrixSparsity.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package hu.bme.mit.ga.metrics.impl.typed; | ||
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| import hu.bme.mit.ga.adapters.GraphIndexer; | ||
| import hu.bme.mit.ga.base.data.MapData; | ||
| import hu.bme.mit.ga.adapters.GraphAdapter; | ||
| import hu.bme.mit.ga.metrics.AbstractGraphMetric; | ||
| import org.ejml.data.DMatrixRMaj; | ||
| import org.ejml.data.DMatrixSparseCSC; | ||
| import org.ejml.data.DMatrixSparseTriplet; | ||
| import org.ejml.ops.ConvertDMatrixStruct; | ||
| import org.ejml.simple.SimpleMatrix; | ||
| import org.ejml.sparse.csc.CommonOps_DSCC; | ||
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| import java.util.ArrayList; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
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| public class TypedMatrixSparsity extends AbstractGraphMetric<MapData<String, Double>> { | ||
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| public TypedMatrixSparsity() { | ||
| super("TypedMatrixSparsity", new MapData<>()); | ||
| } | ||
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| @Override | ||
| protected <N, T> void evaluateAll(GraphAdapter<N, T> adapter) { | ||
| for (T type : adapter.getIndexer().getTypes()) { | ||
| evaluateT(adapter, type); | ||
| } | ||
| } | ||
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| protected <N, T> void evaluateT(GraphAdapter<N, T> adapter, T type) { | ||
| GraphIndexer indexer = adapter.getIndexer(); | ||
| int n = adapter.getIndexer().getSize(); | ||
| double nonzero = (double)indexer.getTypedEdges().get(type)*2; | ||
| double size = n*n; | ||
| data.put(type.toString(), nonzero / size); | ||
| } | ||
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| @Override | ||
| public List<Map<String, Object>> getTsvMaps(String[] header) { | ||
| final List<Map<String, Object>> values = new ArrayList<>(); | ||
| for (String type : data.getValues().keySet()) { | ||
| Double value = data.getValues().get(type); | ||
| Map<String, Object> row = new HashMap<>(); | ||
| row.put(header[0], "TypedMatrixSparsity"); | ||
| row.put(header[1], type); | ||
| row.put(header[2], null); | ||
| row.put(header[3], value); | ||
| values.add(row); | ||
| } | ||
| return values; | ||
| } | ||
| } |