Examples with JoinDistancePredicate edu.uci.ics.textdb.exp.join.JoinDistancePredicate used on opensource projects

Example 11 with JoinDistancePredicate

use of edu.uci.ics.textdb.exp.join.JoinDistancePredicate in project textdb by TextDB.

the class JoinDistanceTest method testOneSpanEncompassesOtherAndDifferenceGreaterThanThreshold.

/*
     * This case tests for the scenario when one of the spans to be joined encompasses the other span
     * and |(span 1 spanStartIndex) - (span 2 spanStartIndex)|
     * and/or |(span 1 spanEndIndex) - (span 2 spanEndIndex)| exceed threshold.
     * 
     * e.g.
     * [<11, 18>]
     * [<3, 33>]
     * threshold = 10 (beyond threshold)
     * Test result: Join should return an empty list.
     */
@Test
public void testOneSpanEncompassesOtherAndDifferenceGreaterThanThreshold() throws Exception {
    JoinTestHelper.insertToTable(BOOK_TABLE, JoinTestConstants.bookGroup1.get(0));
    KeywordMatcherSourceOperator keywordSourceOuter = JoinTestHelper.getKeywordSource(BOOK_TABLE, "special", conjunction);
    KeywordMatcherSourceOperator keywordSourceInner = JoinTestHelper.getKeywordSource(BOOK_TABLE, "takes a special kind of writer", phrase);
    List<Tuple> resultList = JoinTestHelper.getJoinDistanceResults(keywordSourceInner, keywordSourceOuter, new JoinDistancePredicate(JoinTestConstants.REVIEW, 10), Integer.MAX_VALUE, 0);
    Assert.assertEquals(0, resultList.size());
}

Example 12 with JoinDistancePredicate

use of edu.uci.ics.textdb.exp.join.JoinDistancePredicate in project textdb by TextDB.

the class PredicateBaseTest method testJoinDistance.

@Test
public void testJoinDistance() throws Exception {
    JoinDistancePredicate joinDistancePredicate = new JoinDistancePredicate("attr1", "attr1", 100);
    testPredicate(joinDistancePredicate);
}

Example 13 with JoinDistancePredicate

use of edu.uci.ics.textdb.exp.join.JoinDistancePredicate in project textdb by TextDB.

the class JoinDistanceTest method testSpansOverlapAndWithinThreshold.

/*
     * This case tests for the spans to be joined have some overlap and both
     * |(span 1 spanStartIndex) - (span 2 spanStartIndex)|,
     * |(span 1 spanEndIndex) - (span 2 spanEndIndex)| are within threshold.
     * 
     * e.g.
     * [<75, 97>]
     * [<92, 109>]
     * threshold = 20 (within threshold)
     * result: [<75, 109>]
     * 
     * Test result: The list contains a tuple with all the fields and a span
     * list consisting of the joined span. The joined span is made up of the
     * field name, start and stop index (computed as <min(span1 spanStartIndex,
     * span2 spanStartIndex), max(span1 spanEndIndex, span2 spanEndIndex)>)
     * key (combination of span1 key and span2 key) and value (combination of 
     * span1 value and span2 value).
     */
@Test
public void testSpansOverlapAndWithinThreshold() throws Exception {
    JoinTestHelper.insertToTable(BOOK_TABLE, JoinTestConstants.bookGroup1.get(0));
    KeywordMatcherSourceOperator keywordSourceOuter = JoinTestHelper.getKeywordSource(BOOK_TABLE, "gastrointestinal tract", phrase);
    KeywordMatcherSourceOperator keywordSourceInner = JoinTestHelper.getKeywordSource(BOOK_TABLE, "tract interesting", phrase);
    List<Tuple> resultList = JoinTestHelper.getJoinDistanceResults(keywordSourceInner, keywordSourceOuter, new JoinDistancePredicate(JoinTestConstants.REVIEW, 20), Integer.MAX_VALUE, 0);
    Schema resultSchema = Utils.createSpanSchema(JoinTestConstants.BOOK_SCHEMA);
    List<Span> spanList = new ArrayList<>();
    Span span1 = new Span(JoinTestConstants.REVIEW, 75, 109, "gastrointestinal tract_" + "tract interesting", "gastrointestinal " + "tract interesting");
    spanList.add(span1);
    IField[] book1 = { new IntegerField(52), new StringField("Mary Roach"), new StringField("Grunt: The Curious Science of Humans at War"), new IntegerField(288), new TextField("It takes a special kind " + "of writer to make topics ranging from death to our " + "gastrointestinal tract interesting (sometimes " + "hilariously so), and pop science writer Mary Roach is " + "always up to the task."), new ListField<>(spanList) };
    Tuple expectedTuple = new Tuple(resultSchema, book1);
    List<Tuple> expectedResult = new ArrayList<>();
    expectedResult.add(expectedTuple);
    Assert.assertEquals(1, resultList.size());
    Assert.assertTrue(TestUtils.equals(expectedResult, resultList));
}

Example 14 with JoinDistancePredicate

use of edu.uci.ics.textdb.exp.join.JoinDistancePredicate in project textdb by TextDB.

the class JoinDistanceTest method testOneSpanEncompassesOtherAndDifferenceLessThanThreshold.

// This case tests for the scenario when one of the spans to be joined encompasses the other span
// and both |(span 1 spanStartIndex) - (span 2 spanStartIndex)|,
// |(span 1 spanEndIndex) - (span 2 spanEndIndex)| are within threshold.
// e.g.
// [<11, 18>]
// [<3, 33>]
// threshold = 20 (within threshold)
// Test result: The bigger span should be returned.
// [<3, 33>]
@Test
public void testOneSpanEncompassesOtherAndDifferenceLessThanThreshold() throws Exception {
    JoinTestHelper.insertToTable(BOOK_TABLE, JoinTestConstants.bookGroup1.get(0));
    KeywordMatcherSourceOperator keywordSourceOuter = JoinTestHelper.getKeywordSource(BOOK_TABLE, "special", conjunction);
    KeywordMatcherSourceOperator keywordSourceInner = JoinTestHelper.getKeywordSource(BOOK_TABLE, "takes a special kind of writer", phrase);
    List<Tuple> resultList = JoinTestHelper.getJoinDistanceResults(keywordSourceInner, keywordSourceOuter, new JoinDistancePredicate(JoinTestConstants.REVIEW, 20), Integer.MAX_VALUE, 0);
    Schema resultSchema = Utils.createSpanSchema(JoinTestConstants.BOOK_SCHEMA);
    List<Span> spanList = new ArrayList<>();
    Span span1 = new Span(JoinTestConstants.REVIEW, 3, 33, "special_takes a special " + "kind of writer", "takes a special " + "kind of writer");
    spanList.add(span1);
    IField[] book1 = { new IntegerField(52), new StringField("Mary Roach"), new StringField("Grunt: The Curious Science of Humans at War"), new IntegerField(288), new TextField("It takes a special kind " + "of writer to make topics ranging from death to our " + "gastrointestinal tract interesting (sometimes " + "hilariously so), and pop science writer Mary Roach is " + "always up to the task."), new ListField<>(spanList) };
    Tuple expectedTuple = new Tuple(resultSchema, book1);
    List<Tuple> expectedResult = new ArrayList<>();
    expectedResult.add(expectedTuple);
    Assert.assertEquals(1, resultList.size());
    Assert.assertTrue(TestUtils.equals(expectedResult, resultList));
}

Example 15 with JoinDistancePredicate

use of edu.uci.ics.textdb.exp.join.JoinDistancePredicate in project textdb by TextDB.

the class JoinDistanceTest method testIdsMatchFieldsMatchSpanExceedThreshold.

/*
     * This case tests for the scenario when the difference of keyword spans
     * to be joined is greater than the threshold.
     * 
     * [<11, 18>]
     * [<42, 48>]
     * threshold = 20 (beyond threshold)
     * 
     * Test result: An empty list is returned.
     */
@Test
public void testIdsMatchFieldsMatchSpanExceedThreshold() throws Exception {
    JoinTestHelper.insertToTable(BOOK_TABLE, JoinTestConstants.bookGroup1.get(0));
    KeywordMatcherSourceOperator keywordSourceOuter = JoinTestHelper.getKeywordSource(BOOK_TABLE, "special", conjunction);
    KeywordMatcherSourceOperator keywordSourceInner = JoinTestHelper.getKeywordSource(BOOK_TABLE, "topics", conjunction);
    List<Tuple> resultList = JoinTestHelper.getJoinDistanceResults(keywordSourceInner, keywordSourceOuter, new JoinDistancePredicate(JoinTestConstants.REVIEW, 20), Integer.MAX_VALUE, 0);
    Assert.assertEquals(0, resultList.size());
}