Example usage for edu.stanford.nlp.semgraph.semgrex SemgrexPattern matcher

List of usage examples for edu.stanford.nlp.semgraph.semgrex SemgrexPattern matcher

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Introduction

In this page you can find the example usage for edu.stanford.nlp.semgraph.semgrex SemgrexPattern matcher.

Prototype

public SemgrexMatcher matcher(SemanticGraph sg)

Source Link

Document

Get a SemgrexMatcher for this pattern in this graph.

Usage

From source file:edu.anu.spice.SpiceParser.java

License:Open Source License

protected ProposedTuples parseAnnotation(Annotation ann) {
    ProposedTuples tuples = new ProposedTuples();
    ArrayList<SemanticGraph> sgs = new ArrayList<SemanticGraph>();
    for (CoreMap sentence : ann.get(CoreAnnotations.SentencesAnnotation.class)) {
        SemanticGraph sg = sentence/*from  w ww.ja v  a2  s .  c o  m*/
                .get(SemanticGraphCoreAnnotations.CollapsedCCProcessedDependenciesAnnotation.class);
        sgs.add(sg);
    }
    for (SemanticGraph sg : sgs) {
        // Everything from RuleBasedParser except resolvePlurals(sg);
        SemanticGraphEnhancer.processQuanftificationModifiers(sg);
        SemanticGraphEnhancer.collapseCompounds(sg);
        SemanticGraphEnhancer.collapseParticles(sg);
        SemanticGraphEnhancer.resolvePronouns(sg);

        SemgrexMatcher matcher = SUBJ_PRED_OBJ_TRIPLET_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord subj = matcher.getNode("subj");
            IndexedWord obj = matcher.getNode("obj");
            IndexedWord pred = matcher.getNode("pred");
            String reln = matcher.getRelnString("objreln");
            String predicate = getPredicate(sg, pred);
            if (reln.startsWith("nmod:") && !reln.equals("nmod:poss") && !reln.equals("nmod:agent")) {
                predicate += reln.replace("nmod:", " ").replace("_", " ");
            }
            tuples.addTuple(subj, obj, predicate);
        }

        matcher = ACL_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord subj = matcher.getNode("subj");
            IndexedWord obj = matcher.getNode("obj");
            IndexedWord pred = matcher.getNode("pred");
            String reln = matcher.getRelnString("objreln");
            String predicate = getPredicate(sg, pred);
            if (reln.startsWith("nmod:") && !reln.equals("nmod:poss") && !reln.equals("nmod:agent")) {
                predicate += reln.replace("nmod:", " ").replace("_", " ");
            }
            tuples.addTuple(subj, obj, predicate);
        }

        SemgrexPattern[] subjPredPatterns = { SUBJ_PRED_PAIR_PATTERN, COPULAR_PATTERN };
        for (SemgrexPattern p : subjPredPatterns) {
            matcher = p.matcher(sg);
            while (matcher.find()) {
                IndexedWord subj = matcher.getNode("subj");
                IndexedWord pred = matcher.getNode("pred");
                if (sg.hasChildWithReln(pred, UniversalEnglishGrammaticalRelations.CASE_MARKER)) {
                    IndexedWord caseMarker = sg.getChildWithReln(pred,
                            UniversalEnglishGrammaticalRelations.CASE_MARKER);
                    String prep = caseMarker.value();
                    if (sg.hasChildWithReln(caseMarker,
                            UniversalEnglishGrammaticalRelations.MULTI_WORD_EXPRESSION)) {
                        for (IndexedWord additionalCaseMarker : sg.getChildrenWithReln(caseMarker,
                                UniversalEnglishGrammaticalRelations.MULTI_WORD_EXPRESSION)) {
                            prep = prep + " " + additionalCaseMarker.value();
                        }
                    }
                    tuples.addTuple(subj, pred, prep);
                } else {
                    if (!pred.lemma().equals("be")) {
                        tuples.addTuple(subj, pred);
                    }
                }
            }
        }

        matcher = ADJ_MOD_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord obj = matcher.getNode("obj");
            IndexedWord adj = matcher.getNode("adj");
            tuples.addTuple(obj, adj);
        }

        matcher = ADJ_PRED_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord obj = matcher.getNode("obj");
            IndexedWord adj = matcher.getNode("adj");
            tuples.addTuple(obj, adj);
        }

        matcher = PP_MOD_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord gov = matcher.getNode("gov");
            IndexedWord mod = matcher.getNode("mod");
            String reln = matcher.getRelnString("reln");
            String predicate = reln.replace("nmod:", "").replace("_", " ");
            if (predicate.equals("poss") || predicate.equals("agent")) {
                continue;
            }
            tuples.addTuple(gov, mod, predicate);
        }

        matcher = POSS_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord gov = matcher.getNode("gov");
            IndexedWord mod = matcher.getNode("mod");
            tuples.addTuple(mod, gov, "have");
        }

        matcher = AGENT_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord subj = matcher.getNode("subj");
            IndexedWord obj = matcher.getNode("obj");
            IndexedWord pred = matcher.getNode("pred");
            tuples.addTuple(subj, obj, getPredicate(sg, pred));
        }

        matcher = PLURAL_SUBJECT_OBJECT_PATTERN.matcher(sg);
        while (matcher.findNextMatchingNode()) {
            IndexedWord subj = matcher.getNode("subj");
            IndexedWord obj = matcher.getNode("obj");
            checkForNumericAttribute(tuples, sg, subj);
            checkForNumericAttribute(tuples, sg, obj);
        }

        matcher = PLURAL_SUBJECT_PATTERN.matcher(sg);
        while (matcher.findNextMatchingNode()) {
            IndexedWord subj = matcher.getNode("subj");
            checkForNumericAttribute(tuples, sg, subj);
        }

        matcher = PLURAL_OTHER_PATTERN.matcher(sg);
        while (matcher.findNextMatchingNode()) {
            IndexedWord word = matcher.getNode("word");
            checkForNumericAttribute(tuples, sg, word);
        }

        matcher = COMPOUND_NOUN_PATTERN.matcher(sg);
        Set<IndexedWord> compoundNouns = new HashSet<IndexedWord>();
        while (matcher.find()) {
            IndexedWord tail = matcher.getNode("tail");
            IndexedWord head = matcher.getNode("head");
            compoundNouns.add(tail);
            compoundNouns.add(head);
            tuples.addTuple(tail, head);
        }

        // Must happen last, since it will reuse existing parts of the scene
        // graph
        matcher = NOUN_CONJ_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord tail = matcher.getNode("tail");
            IndexedWord head = matcher.getNode("head");
            int original_length = tuples.tuples.size();
            for (int i = 0; i < original_length; ++i) {
                ArrayList<String> prop = tuples.tuples.get(i);
                if (prop.size() == 3 && prop.get(0).equals(head)) {
                    tuples.addTuple(head, prop.get(1), prop.get(2));
                }
                if (prop.size() == 3 && prop.get(1).equals(tail)) {
                    tuples.addTuple(tail, prop.get(1), prop.get(2));
                }
            }
        }

        matcher = NOUN_PATTERN.matcher(sg);
        while (matcher.find()) {
            IndexedWord word = matcher.getNode("word");
            if (!compoundNouns.contains(word)) {
                tuples.addTuple(word);
            }
        }
    }
    return tuples;
}

From source file:org.wso2.extension.siddhi.gpl.execution.nlp.RelationshipByVerbStreamProcessor.java

License:Open Source License

private void findMatchingEvents(CoreMap sentence, SemgrexPattern pattern, Set<Event> eventSet) {
    SemanticGraph graph = sentence//from w  w w.  j a v a  2  s . c o  m
            .get(SemanticGraphCoreAnnotations.CollapsedCCProcessedDependenciesAnnotation.class);
    SemgrexMatcher matcher = pattern.matcher(graph);

    while (matcher.find()) {
        Event event = new Event();
        event.verb = matcher.getNode(Constants.VERB) == null ? null : matcher.getNode(Constants.VERB).word();
        event.subject = matcher.getNode(Constants.SUBJECT) == null ? null
                : matcher.getNode(Constants.SUBJECT).word();
        event.object = matcher.getNode(Constants.OBJECT) == null ? null
                : matcher.getNode(Constants.OBJECT).word();

        eventSet.add(event);
    }
}

From source file:org.wso2.gpl.siddhi.extension.nlp.RelationshipByVerbStreamProcessor.java

License:Open Source License

private void findMatchingEvents(CoreMap sentence, SemgrexPattern pattern, Set<Event> eventSet) {
    SemanticGraph graph = sentence/*from  w  w w  .j a v  a 2s .  c  om*/
            .get(SemanticGraphCoreAnnotations.CollapsedCCProcessedDependenciesAnnotation.class);
    SemgrexMatcher matcher = pattern.matcher(graph);

    while (matcher.find()) {
        Event event = new Event();
        event.verb = matcher.getNode(Constants.verb) == null ? null : matcher.getNode(Constants.verb).word();
        event.subject = matcher.getNode(Constants.subject) == null ? null
                : matcher.getNode(Constants.subject).word();
        event.object = matcher.getNode(Constants.object) == null ? null
                : matcher.getNode(Constants.object).word();

        eventSet.add(event);
    }
}