gnu.trove.strategy.HashingStrategy Java Examples

public StringFeatureAlphabet() {
		data = new TObjectIntCustomHashMap<String>(new HashingStrategy<String>() {
			AbstractHashCode hash = new MurmurHash();
			@Override
			public int computeHashCode(String object) {
								return hash.hashcode(object);
			}
			@Override
			public boolean equals(String o1, String o2) {
//				return (o1.charAt(0)==o2.charAt(0));
				return o1.equals(o2);
			}
		}, DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR, noEntryValue);
		frozen = false;
		last = 0;
	}
 

public ClusterFeatureAlphabet() {
        data = new TObjectIntCustomHashMap<String>(new HashingStrategy<String>() {
            AbstractHashCode hash = new MurmurHash();
            @Override
            public int computeHashCode(String object) {
                                return hash.hashcode(object);
            }
            @Override
            public boolean equals(String o1, String o2) {
//              return (o1.charAt(0)==o2.charAt(0));
                return o1.equals(o2);
            }
        }, DEFAULT_CAPACITY, DEFAULT_LOAD_FACTOR, noEntryValue);
        frozen = false;
        last = 0;
    }
 

/**
 * Compute value of this measure.
 * 
 * @return Value of entropy for the given model. 
 * @throws Exception if limitations of this measure are not satisfied by the given models.
 */
public double computeMeasure() throws Exception {
        
	if (limitationsHold==null) this.checkLimitations();
	if (limitationsHold==null || !limitationsHold.booleanValue()) {
		throw new Exception(String.format("Limitation(s): %s of %s measure are not fulfilled", violetedLimitations, this.getClass().getName()));
	}

	HashingStrategy<String> strategy = new HashingStrategy<String>() {

		public int computeHashCode(String object) {
			return object.hashCode();
		}

		public boolean equals(String o1, String o2) {
			return o1.equals(o2);
		}
	};
	TObjectShortMap<String> activity2short = new TObjectShortCustomHashMap<String>(strategy, 10, 0.5f, (short) -1);
    
	System.out.println(String.format("Constructing automaton for retrieved model"));
	long start = System.currentTimeMillis();
	if (model instanceof NetSystem) {
		model = Utils.constructAutomatonFromNetSystem((NetSystem) model, activity2short);
	} else if (model instanceof XLog){
		model = Utils.constructAutomatonFromLog((XLog) model, activity2short);
	}
    long finish = System.currentTimeMillis();
    System.out.println(String.format("The automaton for model constructed in                       %s ms.", (finish-start)));
    System.out.println(String.format("The number of states:                                        %s", ((Automaton)model).getNumberOfStates()));
    System.out.println(String.format("The number of transitions:                                   %s", Utils.numberOfTransitions((Automaton)model)));
    	    
    start = System.nanoTime();
	this.measureValue = this.computeMeasureValue();
	this.measureComputationTime = System.nanoTime()-start;

	return this.measureValue;
}
 

/**
 * Compute value of this measure.
 * 
 * @return Value of this measure for the given models of relevant and retrieved traces. 
 * @throws Exception if limitations of this measure are not satisfied by the given models.
 */
public Pair<Double, Double> computeMeasure() throws Exception {
        
	if (limitationsHold==null) this.checkLimitations();
	if (limitationsHold==null || !limitationsHold.booleanValue()) {
		throw new Exception(String.format("Limitation(s): %s of %s measure are not fulfilled", violetedLimitations, this.getClass().getName()));
	}

	HashingStrategy<String> strategy = new HashingStrategy<String>() {

		public int computeHashCode(String object) {
			return object.hashCode();
		}

		public boolean equals(String o1, String o2) {
			return o1.equals(o2);
		}
	};
	TObjectShortMap<String> activity2short = new TObjectShortCustomHashMap<String>(strategy, 10, 0.5f, (short) -1);
    
	System.out.println(String.format("Constructing automaton RET that encodes the retrieved model."));
	long start = System.currentTimeMillis();
	if (retrievedTraces instanceof NetSystem) {
		retrievedTraces = Utils.constructAutomatonFromNetSystem((NetSystem) retrievedTraces, activity2short);
	} else if (retrievedTraces instanceof XLog){
		retrievedTraces = Utils.constructAutomatonFromLog((XLog) retrievedTraces, activity2short);
	}
    long finish = System.currentTimeMillis();
    System.out.println(String.format("Automaton RET constructed in                                %s ms.", (finish-start)));
    System.out.println(String.format("Automaton RET has %s states and %s transitions.", ((Automaton)retrievedTraces).getNumberOfStates(), Utils.numberOfTransitions((Automaton)retrievedTraces)));
    
	System.out.println(String.format("Constructing automaton REL that encodes the relevant model."));
	start = System.currentTimeMillis();
	if (relevantTraces instanceof NetSystem) {
		relevantTraces = Utils.constructAutomatonFromNetSystem((NetSystem) relevantTraces, activity2short);
	} else if (relevantTraces instanceof XLog){
		relevantTraces = Utils.constructAutomatonFromLog((XLog) relevantTraces, activity2short);
	}
    finish = System.currentTimeMillis();
    System.out.println(String.format("Automaton REL constructed in                                %s ms.", (finish-start)));
    System.out.println(String.format("Automaton REL has %s states and %s transitions.", ((Automaton)relevantTraces).getNumberOfStates(), Utils.numberOfTransitions((Automaton)relevantTraces)));
    
    start = System.nanoTime();
	this.measureValue = this.computeMeasureValue();
	this.measureComputationTime = System.nanoTime()-start;

	return this.measureValue;
}