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/*
* Copyright (c) 2020, Peter Abeles. All Rights Reserved.
*
* This file is part of Efficient Java Matrix Library (EJML).
*
* 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.
*/
package org.ejml.sparse.csc.misc;
import org.ejml.data.DMatrixSparseCSC;
import org.ejml.masks.DMaskFactory;
import org.ejml.ops.DSemiRing;
import org.ejml.ops.DSemiRings;
import org.ejml.sparse.csc.RandomMatrices_DSCC;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import java.util.Arrays;
import java.util.Random;
import java.util.stream.Stream;
import static org.ejml.TestDMaskUtil.assertMaskedResult;
import static org.junit.jupiter.api.Assertions.*;
@SuppressWarnings({"UnusedMethod"})
public class TestImplCommonOpsWithSemiRing_DSCC {
@ParameterizedTest
@MethodSource("elementWiseAddSemiringSource")
public void add( DSemiRing semiRing, double[] expected ) {
// == graph unions
DMatrixSparseCSC a = new DMatrixSparseCSC(3, 3);
DMatrixSparseCSC b = a.copy();
DMatrixSparseCSC c = a.copy();
a.set(1, 1, 2);
b.set(1, 1, 3);
b.set(0, 0, 4);
ImplCommonOpsWithSemiRing_DSCC.add(1, a, 1, b, c, semiRing, null, null, null);
double[] found = new double[]{c.get(0, 0), c.get(1, 1)};
assertTrue(c.getNonZeroLength() == 2);
assertTrue(Arrays.equals(expected, found));
}
@Test
public void maskedAdd() {
var random = new Random(42);
var a = RandomMatrices_DSCC.rectangle(10, 10, 30, random);
var b = RandomMatrices_DSCC.rectangle(10, 10, 30, random);
var mask = DMaskFactory.builder(RandomMatrices_DSCC.rectangle(10, 10, 30, random), true).build();
var unmasked = new DMatrixSparseCSC(10, 10, 0);
var masked = new DMatrixSparseCSC(10, 10, 0);
ImplCommonOpsWithSemiRing_DSCC.add(1, a, 1, b, unmasked, DSemiRings.PLUS_TIMES, null, null, null);
ImplCommonOpsWithSemiRing_DSCC.add(1, a, 1, b, masked, DSemiRings.PLUS_TIMES, mask, null, null);
assertMaskedResult(unmasked, masked, mask);
}
@Test
public void useMaskForResultExpansionInAdd() {
var random = new Random(42);
var a = RandomMatrices_DSCC.rectangle(10, 10, 100, random);
var b = RandomMatrices_DSCC.rectangle(10, 10, 100, random);
int expectedResultEntries = 50;
var mask = DMaskFactory.builder(RandomMatrices_DSCC.rectangle(10, 10, expectedResultEntries, random), false).build();
var result = new DMatrixSparseCSC(10, 10, 1);
ImplCommonOpsWithSemiRing_DSCC.add(1, a, 1, b, result, DSemiRings.PLUS_TIMES, mask, null, null);
assertEquals(expectedResultEntries, result.nz_length);
assertEquals(50, result.nz_rows.length);
assertEquals(50, result.nz_values.length);
}
@Test
public void useMaskForResultExpansionInMult() {
var random = new Random(42);
var a = RandomMatrices_DSCC.rectangle(10, 10, 100, random);
var b = RandomMatrices_DSCC.rectangle(10, 10, 100, random);
int expectedResultEntries = 50;
var mask = DMaskFactory.builder(RandomMatrices_DSCC.rectangle(10, 10, expectedResultEntries, random), false).build();
var result = new DMatrixSparseCSC(10, 10, 1);
ImplCommonOpsWithSemiRing_DSCC.elementMult(a, b, result, DSemiRings.PLUS_TIMES, mask, null, null);
assertEquals(expectedResultEntries, result.nz_length);
assertEquals(50, result.nz_rows.length);
assertEquals(50, result.nz_values.length);
}
@ParameterizedTest
@MethodSource("elementWiseMultSemiringSource")
public void elementWiseMult( DSemiRing semiRing, double[] expected ) {
// == graph intersection
DMatrixSparseCSC matrix = new DMatrixSparseCSC(3, 3, 4);
matrix.set(1, 1, 4);
matrix.set(1, 2, -2);
DMatrixSparseCSC otherMatrix = matrix.copy();
otherMatrix.set(1, 1, 3);
otherMatrix.set(1, 2, 1);
matrix.set(0, 2, 1);
otherMatrix.set(2, 0, 1);
DMatrixSparseCSC result = new DMatrixSparseCSC(3, 3, 0);
ImplCommonOpsWithSemiRing_DSCC.elementMult(matrix, otherMatrix, result, semiRing, null, null, null);
assertEquals(2, result.getNonZeroLength());
assertTrue(expected[0] == result.get(1, 1));
assertTrue(expected[1] == result.get(1, 2));
}
@Test
public void maskedeWiseMult() {
var random = new Random(42);
var a = RandomMatrices_DSCC.rectangle(10, 10, 30, random);
var b = RandomMatrices_DSCC.rectangle(10, 10, 30, random);
var mask = DMaskFactory.builder(RandomMatrices_DSCC.rectangle(10, 10, 30, random), true).build();
var unmasked = new DMatrixSparseCSC(10, 10, 0);
var masked = new DMatrixSparseCSC(10, 10, 0);
ImplCommonOpsWithSemiRing_DSCC.elementMult(a, b, unmasked, DSemiRings.PLUS_TIMES, null, null, null);
ImplCommonOpsWithSemiRing_DSCC.elementMult(a, b, masked, DSemiRings.PLUS_TIMES, mask, null, null);
assertMaskedResult(unmasked, masked, mask);
}
private static Stream<Arguments> elementWiseAddSemiringSource() {
return Stream.of(
Arguments.of(DSemiRings.PLUS_TIMES, new double[]{4, 5}),
Arguments.of(DSemiRings.MIN_MAX, new double[]{4, 2}),
Arguments.of(DSemiRings.OR_AND, new double[]{1, 1})
);
}
private static Stream<Arguments> elementWiseMultSemiringSource() {
return Stream.of(
Arguments.of(DSemiRings.PLUS_TIMES, new double[]{12, -2}),
Arguments.of(DSemiRings.PLUS_MIN, new double[]{3, -2}),
Arguments.of(DSemiRings.MIN_MAX, new double[]{4, 1}),
Arguments.of(DSemiRings.OR_AND, new double[]{1, 1})
);
}
}
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