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Last change
on this file since 664 was
664,
checked in by sherbold, 12 years ago
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- modified Command.help(): the help now returns a string with its usage instead of writing directly to the console
- modified listCommands: now writes the help string of each command instead of just the name; this way, the parameters are displayed directly
- moved listCommands from quest-ui-core to java-utils
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File size:
1.7 KB
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| 1 | package de.ugoe.cs.quest.ui.commands;
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| 2 |
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| 3 | import java.util.List;
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| 4 | import java.util.Random;
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| 5 |
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| 6 | import de.ugoe.cs.quest.usageprofiles.PredictionByPartialMatch;
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| 7 | import de.ugoe.cs.quest.usageprofiles.TrieBasedModel;
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| 8 |
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| 9 | /**
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| 10 | * <p>
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| 11 | * Command that trains Prediction by Partial Match (PPM) models.
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| 12 | * </p>
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| 13 | *
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| 14 | * @author Steffen Herbold
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| 15 | * @version 2.0
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| 16 | */
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| 17 | public class CMDtrainPPM extends AbstractTrainCommand {
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| 18 |
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| 19 | /**
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| 20 | * <p>
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| 21 | * Escape probability of the PPM model.
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| 22 | * </p>
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| 23 | */
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| 24 | double probEscape;
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| 25 |
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| 26 | /**
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| 27 | * <p>
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| 28 | * Maximal Markov order of the PPM model.
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| 29 | * </p>
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| 30 | */
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| 31 | int maxOrder;
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| 32 |
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| 33 | /**
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| 34 | * <p>
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| 35 | * Minimal Markov order of the PPM model. Default: 0
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| 36 | * </p>
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| 37 | */
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| 38 | int minOrder = 0;
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| 39 |
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| 40 | /*
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| 41 | * (non-Javadoc)
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| 42 | *
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| 43 | * @see de.ugoe.cs.util.console.Command#help()
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| 44 | */
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| 45 | @Override
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| 46 | public String help() {
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| 47 | return "trainPPM <modelName> <sequencesName> <probEscape> <maxOrder> {<minOrder>}";
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| 48 | }
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| 49 |
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| 50 | /**
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| 51 | * <p>
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| 52 | * Handles the parameters probEscape, maxOrder, and minOrder.
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| 53 | * </p>
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| 54 | *
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| 55 | * @see de.ugoe.cs.quest.ui.commands.AbstractTrainCommand#handleOptionalParameters(java.util.List)
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| 56 | */
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| 57 | @Override
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| 58 | void handleAdditionalParameters(List<Object> parameters) throws Exception {
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| 59 | probEscape = Double.parseDouble((String) parameters.get(2));
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| 60 | maxOrder = Integer.parseInt((String) parameters.get(3));
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| 61 | if (parameters.size() == 5) {
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| 62 | minOrder = Integer.parseInt((String) parameters.get(4));
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| 63 | }
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| 64 | }
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| 65 |
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| 66 | /*
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| 67 | * (non-Javadoc)
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| 68 | *
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| 69 | * @see de.ugoe.cs.quest.ui.commands.AbstractTrainCommand#createModel()
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| 70 | */
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| 71 | @Override
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| 72 | TrieBasedModel createModel() {
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| 73 | return new PredictionByPartialMatch(maxOrder, minOrder, new Random(),
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| 74 | probEscape);
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| 75 | }
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| 76 |
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| 77 | }
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