Package edu.cmu.sphinx.fst

Examples of edu.cmu.sphinx.fst.Arc

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        for (Pair<State, Float> p : pa) {
            State s = p.getLeft();

            int numArcs = s.getNumArcs();
            for (int j = 0; j < numArcs; j++) {
                Arc arc = s.getArc(j);
                if (!res.contains(arc.getIlabel())) {
                    res.add(arc.getIlabel());
                }
            }
        }
        return res;
    }
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                for (Pair<State, Float> ps : p) {
                    State old = ps.getLeft();
                    Float u = ps.getRight();
                    int numArcs = old.getNumArcs();
                    for (int j = 0; j < numArcs; j++) {
                        Arc arc = old.getArc(j);
                        if (label == arc.getIlabel()) {
                            wnew = semiring.plus(wnew,
                                    semiring.times(u, arc.getWeight()));
                        }
                    }
                }

                // calc new states
                // keep residual weights to variable forQueue
                ArrayList<Pair<State, Float>> forQueue = new ArrayList<Pair<State, Float>>();
                for (Pair<State, Float> ps : p) {
                    State old = ps.getLeft();
                    Float u = ps.getRight();
                    Float wnewRevert = semiring.divide(semiring.one(), wnew);
                    int numArcs = old.getNumArcs();
                    for (int j = 0; j < numArcs; j++) {
                        Arc arc = old.getArc(j);
                        if (label == arc.getIlabel()) {
                            State oldstate = arc.getNextState();
                            Pair<State, Float> pair = getPair(forQueue,
                                    oldstate, semiring.zero());
                            pair.setRight(semiring.plus(
                                    pair.getRight(),
                                    semiring.times(wnewRevert,
                                            semiring.times(u, arc.getWeight()))));
                        }
                    }
                }

                // build new state's id and new elements for queue
                String qnewid = "";
                for (Pair<State, Float> ps : forQueue) {
                    State old = ps.getLeft();
                    Float unew = ps.getRight();
                    if (!qnewid.equals("")) {
                        qnewid = qnewid + ",";
                    }
                    qnewid = qnewid + "(" + old + "," + unew + ")";
                }

                if (stateMapper.get(qnewid) == null) {
                    State qnew = new State(semiring.zero());
                    res.addState(qnew);
                    stateMapper.put(qnewid, qnew);
                    // update new state's weight
                    Float fw = qnew.getFinalWeight();
                    for (Pair<State, Float> ps : forQueue) {
                        fw = semiring.plus(fw, semiring.times(ps.getLeft()
                                .getFinalWeight(), ps.getRight()));
                    }
                    qnew.setFinalWeight(fw);

                    queue.add(forQueue);
                }
                pnew.addArc(new Arc(label, label, wnew, stateMapper.get(qnewid)));
            }
        }

        return res;
    }
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        State s = state;

        float pathWeight;
        int numArcs = s.getNumArcs();
        for (int j = 0; j < numArcs; j++) {
            Arc a = s.getArc(j);
            if ((a.getIlabel() == 0) && (a.getOlabel() == 0)) {
                if (cl[a.getNextState().getId()] == null) {
                    calcClosure(fst, a.getNextState(), cl, semiring);
                }
                if (cl[a.getNextState().getId()] != null) {
                    for (State pathFinalState : cl[a.getNextState().getId()]
                            .keySet()) {
                        pathWeight = semiring.times(
                                getPathWeight(a.getNextState(), pathFinalState,
                                        cl), a.getWeight());
                        add(state, pathFinalState, pathWeight, cl, semiring);
                    }
                }
                add(state, a.getNextState(), a.getWeight(), cl, semiring);
            }
        }
    }
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            State s = fst.getState(i);
            // Add non-epsilon arcs
            State newState = oldToNewStateMap[s.getId()];
            int numArcs = s.getNumArcs();
            for (int j = 0; j < numArcs; j++) {
                Arc a = s.getArc(j);
                if ((a.getIlabel() != 0) || (a.getOlabel() != 0)) {
                    newState.addArc(new Arc(a.getIlabel(), a.getOlabel(), a
                            .getWeight(), oldToNewStateMap[a.getNextState()
                            .getId()]));
                }
            }

            // Compute e-Closure
            if (cl[s.getId()] == null) {
                calcClosure(fst, s, cl, semiring);
            }
        }

        // augment fst with arcs generated from epsilon moves.
        numStates = res.getNumStates();
        for (int i = 0; i < numStates; i++) {
            State s = res.getState(i);
            State oldState = newToOldStateMap[s.getId()];
            if (cl[oldState.getId()] != null) {
                for (State pathFinalState : cl[oldState.getId()].keySet()) {
                    State s1 = pathFinalState;
                    if (s1.getFinalWeight() != semiring.zero()) {
                        s.setFinalWeight(semiring.plus(s.getFinalWeight(),
                                semiring.times(getPathWeight(oldState, s1, cl),
                                        s1.getFinalWeight())));
                    }
                    int numArcs = s1.getNumArcs();
                    for (int j = 0; j < numArcs; j++) {
                        Arc a = s1.getArc(j);
                        if ((a.getIlabel() != 0) || (a.getOlabel() != 0)) {
                            Arc newArc = new Arc(a.getIlabel(), a.getOlabel(),
                                    semiring.times(a.getWeight(),
                                            getPathWeight(oldState, s1, cl)),
                                    oldToNewStateMap[a.getNextState().getId()]);
                            s.addArc(newArc);
                        }
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            s = new State(ts.zero());
            efst.addState(s);
            if (i >= 1) {
                int symIndex = Utils.getIndex(g2pmodel.getIsyms(),
                        entry.get(i - 1));
                efst.getState(i).addArc(new Arc(symIndex, symIndex, 0.f, s));
            } else if (i == 0) {
                int symIndex = Utils.getIndex(g2pmodel.getIsyms(), sb);
                efst.getStart().addArc(new Arc(symIndex, symIndex, 0.f, s));
            }

            if (i == entry.size()) {
                State s1 = new State(ts.zero());
                efst.addState(s1);
                int symIndex = Utils.getIndex(g2pmodel.getIsyms(), se);
                s.addArc(new Arc(symIndex, symIndex, 0.f, s1));
                s1.setFinalWeight(0.f);
            }
        }

        // Add any cluster arcs
        for (int value = 0; value < clusters.length; value++) {
            ArrayList<String> cluster = clusters[value];
            if (cluster != null) {
                int start = 0;
                int k = 0;
                while (k != -1) {
                    k = Utils.search(entry, cluster, start);
                    if (k != -1) {
                        State from = efst.getState(start + k + 1);
                        from.addArc(new Arc(value, value, 0.f, efst
                                .getState(start + k + cluster.size() + 1)));
                        start = start + k + cluster.size();
                    }
                }
            }
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                }
            }

            int numArcs = s.getNumArcs();
            for (int j = 0; j < numArcs; j++) {
                Arc a = s.getArc(j);
                p = new Path(fst.getSemiring());
                Path cur = paths.get(s);
                p.setCost(cur.getCost());
                p.setPath((ArrayList<String>) cur.getPath().clone());

                String sym = osyms[a.getOlabel()];

                String[] symsArray = sym.split("\\" + tie);

                for (int i = 0; i < symsArray.length; i++) {
                    String phone = symsArray[i];
                    if (!skipSeqs.contains(phone)) {
                        p.getPath().add(phone);
                    }
                }
                p.setCost(semiring.times(p.getCost(), a.getWeight()));
                State nextState = a.getNextState();
                paths.put(nextState, p);
                if (!queue.contains(nextState)) {
                    queue.add(nextState);
                }
            }
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        State s3 = new State(ts.zero());
        State s4 = new State(2.f);

        // State 0
        fst.addState(s1);
        s1.addArc(new Arc(1, 5, 1.f, s2));
        s1.addArc(new Arc(2, 4, 3.f, s2));
        fst.setStart(s1);

        // State 1
        fst.addState(s2);
        s2.addArc(new Arc(3, 3, 7.f, s2));
        s2.addArc(new Arc(4, 2, 5.f, s3));

        // State 2
        fst.addState(s3);
        s3.addArc(new Arc(5, 1, 9.f, s4));

        // State 3
        fst.addState(s4);

        return fst;
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        State s3 = new State(ts.zero());
        State s4 = new State(2.f);

        // State 0
        fst.addState(s1);
        s1.addArc(new Arc(1, 1, 1.f, s2));
        s1.addArc(new Arc(2, 2, 3.f, s2));
        fst.setStart(s1);

        // State 1
        fst.addState(s2);
        s2.addArc(new Arc(3, 3, 7.f, s2));
        s2.addArc(new Arc(4, 4, 5.f, s3));

        // State 2
        fst.addState(s3);
        s3.addArc(new Arc(5, 5, 9.f, s4));

        // State 3
        fst.addState(s4);

        return fst;
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        State s3 = new State(ts.zero());
        State s4 = new State(2.f);

        // State 0
        fst.addState(s1);
        s1.addArc(new Arc(5, 5, 1.f, s2));
        s1.addArc(new Arc(4, 4, 3.f, s2));
        fst.setStart(s1);

        // State 1
        fst.addState(s2);
        s2.addArc(new Arc(3, 3, 7.f, s2));
        s2.addArc(new Arc(2, 2, 5.f, s3));

        // State 2
        fst.addState(s3);
        s3.addArc(new Arc(1, 1, 9.f, s4));

        // State 3
        fst.addState(s4);

        return fst;
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Related Classes of edu.cmu.sphinx.fst.Arc

  • edu.cmu.sphinx.fst.operations.Compose
  • edu.cmu.sphinx.fst.operations.Connect
  • edu.cmu.sphinx.fst.operations.Determinize
  • edu.cmu.sphinx.fst.operations.ExtendFinal
  • edu.cmu.sphinx.fst.operations.NShortestPaths
  • edu.cmu.sphinx.fst.operations.Project
  • edu.cmu.sphinx.fst.operations.Reverse
  • edu.cmu.sphinx.fst.operations.RmEpsilon
  • edu.cmu.sphinx.fst.ProjectTest
  • edu.cmu.sphinx.linguist.g2p.G2PConverter
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