/**
* Receives a rule and return the type of the rule, such as "synonym" or "hypernym" for WordNet,
* "redirect" for Wikipedia, etc. The default value is "local-entailment".<br>
* A better solution is to add an abstract class implementing RuleInfo, that all the concrete
* RuleInfos will extend. This class will contain a field "relation" with a default of
* "local-entailment". Then we can call: rule.getInfo().getRelation() without having to know which
* resource the rule belongs to.
*
* @param rule
* @return The type of the rule
*/
private String getLinkInfo(LexicalRule<? extends RuleInfo> rule) {
String type = "local-entailment";
// WordNet
if (rule.getResourceName().equals("WORDNET")) {
type = ((WordnetRuleInfo) rule.getInfo()).getTypedRelation().name();
}
// VerbOcean
else if (rule.getResourceName().equals("VerbOcean")) {
type = ((VerbOceanRuleInfo) rule.getInfo()).getRelationType().name();
}
return type;
}
/**
* Fill up the one sided rule maps
*
* @param mapRulesByUnorderedPair
* @param verbPairs
* @throws LexicalResourceException
*/
private void fillTheRuleMaps(
PairMap<String, LexicalRule<? extends VerbOceanRuleInfo>> mapRulesByUnorderedPair,
Set<Pair<String>> verbPairs)
throws LexicalResourceException {
for (Pair<String> verbPair : verbPairs) {
LexicalRule<? extends VerbOceanRuleInfo> rule = mapRulesByUnorderedPair.getValueOf(verbPair);
addToMappedList(mapRulesByEntailingVerb, rule.getLLemma(), rule);
addToMappedList(mapRulesByEntailedVerb, rule.getRLemma(), rule);
mapRulesByEntailmentPair.put(new EntailmentPair(rule.getLLemma(), rule.getRLemma()), rule);
if (rule.getInfo()
.getRelationType()
.isBidirectional()) // bidirectional rules are symmetrically duplicated
{
LexicalRule<VerbOceanRuleInfo> inverseRule = invertRule(rule);
addToMappedList(mapRulesByEntailedVerb, inverseRule.getRLemma(), inverseRule);
mapRulesByEntailmentPair.put(
new EntailmentPair(inverseRule.getLLemma(), inverseRule.getRLemma()), inverseRule);
}
}
// sort each little list according to score
sortMappedLists(mapRulesByEntailingVerb);
sortMappedLists(mapRulesByEntailedVerb);
}
/**
* @param rule
* @return
* @throws LexicalResourceException
*/
private LexicalRule<VerbOceanRuleInfo> invertRule(LexicalRule<? extends VerbOceanRuleInfo> rule)
throws LexicalResourceException {
return new LexicalRule<VerbOceanRuleInfo>(
rule.getRLemma(),
VERB,
rule.getLLemma(),
VERB,
rule.getConfidence(),
rule.getRelation(),
RESOURCE_NAME,
rule.getInfo());
}
/**
* Get rules of type leftSide -> rightSide, using the given lexical resource
*
* @param resource The lexical resource to use
* @param leftSide The phrase that will be looked for as lhs of a rule
* @param rightSide The phrase that will be looked for as rhs of a rule
* @param partOfSpeech2
* @param partOfSpeech
* @return The list of rules leftSide -> rightSide
* @throws LexicalResourceException
*/
private List<LexicalRule<? extends RuleInfo>> getRules(
LexicalResource<? extends RuleInfo> resource,
String leftSide,
String rightSide,
PartOfSpeech leftSidePOS,
PartOfSpeech rightSidePOS)
throws LexicalResourceException {
List<LexicalRule<? extends RuleInfo>> rules = new ArrayList<LexicalRule<? extends RuleInfo>>();
try {
// WordNet workaround:
// Make sure the synsets of the right and left sides of the rule
// are equal to the right and left phrases.
// (WN returns rules associated with any of the words in the phrase)
if (resource.getClass().getName().toLowerCase().contains(WORDNET)) {
for (LexicalRule<? extends RuleInfo> rule :
resource.getRules(leftSide, leftSidePOS, rightSide, rightSidePOS)) {
WordnetRuleInfo ruleInfo = (WordnetRuleInfo) rule.getInfo();
if ((ruleInfo.getLeftSense().getWords().contains(leftSide))
&& (ruleInfo.getRightSense().getWords().contains(rightSide))) {
addRuleToList(rules, rule);
}
}
} else {
// Get rules from t to h
for (LexicalRule<? extends RuleInfo> rule :
resource.getRules(leftSide, leftSidePOS, rightSide, rightSidePOS)) {
addRuleToList(rules, rule);
}
}
} catch (Exception e) {
logger.warn(
"Could not add rules from "
+ resource.getClass().getSimpleName()
+ " for "
+ leftSide
+ "->"
+ rightSide,
e);
}
return rules;
}