1 | // Copyright 2012 Georg-August-Universität Göttingen, Germany
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2 | //
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3 | // Licensed under the Apache License, Version 2.0 (the "License");
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4 | // you may not use this file except in compliance with the License.
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5 | // You may obtain a copy of the License at
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6 | //
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7 | // http://www.apache.org/licenses/LICENSE-2.0
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8 | //
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9 | // Unless required by applicable law or agreed to in writing, software
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10 | // distributed under the License is distributed on an "AS IS" BASIS,
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11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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12 | // See the License for the specific language governing permissions and
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13 | // limitations under the License.
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14 |
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15 | package de.ugoe.cs.autoquest.commands.usage;
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16 |
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17 | import java.util.List;
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18 | import java.util.Random;
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19 |
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20 | import de.ugoe.cs.autoquest.usageprofiles.FirstOrderMarkovModel;
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21 | import de.ugoe.cs.autoquest.usageprofiles.HighOrderMarkovModel;
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22 | import de.ugoe.cs.autoquest.usageprofiles.TrieBasedModel;
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23 |
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24 | /**
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25 | * <p>
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26 | * Command to train first-order and high-order Markov models.
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27 | * </p>
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28 | *
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29 | * @author Steffen Herbold
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30 | * @version 2.0
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31 | */
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32 | public class CMDtrainMarkovModel extends AbstractTrainCommand {
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33 |
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34 | /**
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35 | * <p>
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36 | * Order of the Markov model.
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37 | * </p>
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38 | */
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39 | int order;
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40 |
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41 | /*
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42 | * (non-Javadoc)
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43 | *
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44 | * @see de.ugoe.cs.util.console.Command#help()
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45 | */
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46 | @Override
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47 | public String help() {
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48 | return "trainMarkovModel <modelname> <sequencesName> {<order>}";
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49 | }
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50 |
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51 | /**
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52 | * <p>
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53 | * Handles the parameter order.
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54 | * </p>
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55 | *
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56 | * @see de.ugoe.cs.autoquest.commands.usage.AbstractTrainCommand#handleOptionalParameters(java.util.List)
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57 | */
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58 | @Override
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59 | void handleAdditionalParameters(List<Object> parameters) throws Exception {
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60 | if (parameters.size() >= 3) {
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61 | order = Integer.parseInt((String) parameters.get(2));
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62 | } else {
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63 | order = 1;
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64 | }
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65 | }
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66 |
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67 | /*
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68 | * (non-Javadoc)
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69 | *
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70 | * @see de.ugoe.cs.autoquest.ui.commands.AbstractTrainCommand#createModel()
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71 | */
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72 | @Override
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73 | TrieBasedModel createModel() {
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74 | if (order == 1) {
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75 | return new FirstOrderMarkovModel(new Random());
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76 | } else {
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77 | return new HighOrderMarkovModel(order, new Random());
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78 | }
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79 | }
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80 |
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81 | }
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