/// <summary>Informs this sequence model that the value of the whole sequence is initialized to sequence</summary> public virtual void SetInitialSequence(int[] sequence) { if (models != null) { foreach (ISequenceListener model in models) { model.SetInitialSequence(sequence); } return; } model1.SetInitialSequence(sequence); model2.SetInitialSequence(sequence); }
public virtual int[] FindBestUsingAnnealing(ISequenceModel model, CoolingSchedule schedule, int[] initialSequence) { if (verbose > 0) { log.Info("Doing annealing"); } listener.SetInitialSequence(initialSequence); IList result = new ArrayList(); // so we don't change the initial, or the one we just stored int[] sequence = Copy(initialSequence); int[] best = null; double bestScore = double.NegativeInfinity; double score = double.NegativeInfinity; // if (!returnLastFoundSequence) { // score = model.scoreOf(sequence); // } ICollection <int> positionsChanged = null; if (speedUpThreshold > 0) { positionsChanged = Generics.NewHashSet(); } for (int i = 0; i < schedule.NumIterations(); i++) { if (Thread.Interrupted()) { // Allow interrupting the parser throw new RuntimeInterruptedException(); } double temperature = schedule.GetTemperature(i); if (speedUpThreshold <= 0) { score = SampleSequenceForward(model, sequence, temperature, null); } else { // modifies tagSequence if (i < speedUpThreshold) { score = SampleSequenceForward(model, sequence, temperature, null); // modifies tagSequence for (int j = 0; j < sequence.Length; j++) { if (sequence[j] != initialSequence[j]) { positionsChanged.Add(j); } } } else { score = SampleSequenceForward(model, sequence, temperature, positionsChanged); } } // modifies tagSequence result.Add(sequence); if (returnLastFoundSequence) { best = sequence; } else { // score = model.scoreOf(sequence); //log.info(i+" "+score+" "+Arrays.toString(sequence)); if (score > bestScore) { best = sequence; bestScore = score; } } if (i % 50 == 0) { if (verbose > 1) { log.Info("itr " + i + ": " + bestScore + "\t"); } } if (verbose > 0) { log.Info("."); } } if (verbose > 1) { log.Info(); PrintSamples(result, System.Console.Error); } if (verbose > 0) { log.Info("done."); } //return sequence; return(best); }