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| 1 | +/* |
| 2 | + * The MIT License |
| 3 | + * |
| 4 | + * Copyright 2015 Thibault Debatty. |
| 5 | + * |
| 6 | + * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | + * of this software and associated documentation files (the "Software"), to deal |
| 8 | + * in the Software without restriction, including without limitation the rights |
| 9 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 10 | + * copies of the Software, and to permit persons to whom the Software is |
| 11 | + * furnished to do so, subject to the following conditions: |
| 12 | + * |
| 13 | + * The above copyright notice and this permission notice shall be included in |
| 14 | + * all copies or substantial portions of the Software. |
| 15 | + * |
| 16 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 22 | + * THE SOFTWARE. |
| 23 | + */ |
| 24 | + |
| 25 | +package info.debatty.java.stringsimilarity; |
| 26 | + |
| 27 | +import info.debatty.java.utils.SparseIntegerVector; |
| 28 | +import org.junit.After; |
| 29 | +import org.junit.AfterClass; |
| 30 | +import org.junit.Before; |
| 31 | +import org.junit.BeforeClass; |
| 32 | +import org.junit.Test; |
| 33 | +import static org.junit.Assert.*; |
| 34 | + |
| 35 | +/** |
| 36 | + * |
| 37 | + * @author Thibault Debatty |
| 38 | + */ |
| 39 | +public class StringProfileTest { |
| 40 | + |
| 41 | + public StringProfileTest() { |
| 42 | + } |
| 43 | + |
| 44 | + @BeforeClass |
| 45 | + public static void setUpClass() { |
| 46 | + } |
| 47 | + |
| 48 | + @AfterClass |
| 49 | + public static void tearDownClass() { |
| 50 | + } |
| 51 | + |
| 52 | + @Before |
| 53 | + public void setUp() { |
| 54 | + } |
| 55 | + |
| 56 | + @After |
| 57 | + public void tearDown() { |
| 58 | + } |
| 59 | + |
| 60 | + /** |
| 61 | + * Test of cosineSimilarity method, of class StringProfile. |
| 62 | + * @throws java.lang.Exception |
| 63 | + */ |
| 64 | + @Test |
| 65 | + public void testCosineSimilarity() throws Exception { |
| 66 | + System.out.println("cosineSimilarity"); |
| 67 | + String s1 = "My first string"; |
| 68 | + String s2 = "My other string..."; |
| 69 | + |
| 70 | + // Let's work with sequences of 2 characters... |
| 71 | + KShingling ks = new KShingling(2); |
| 72 | + |
| 73 | + // Pre-compute the profile of strings |
| 74 | + StringProfile profile1 = ks.getProfile(s1); |
| 75 | + StringProfile profile2 = ks.getProfile(s2); |
| 76 | + |
| 77 | + // Prints 0.516185 |
| 78 | + assertEquals(0.516185, profile1.cosineSimilarity(profile2), 0.0001); |
| 79 | + } |
| 80 | + |
| 81 | + |
| 82 | +} |
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