Examples with Model hex.Model used on opensource projects

Example 1 with Model

use of hex.Model in project h2o-3 by h2oai.

the class GBMGridTest method testDuplicatesCarsGrid.

//@Ignore("PUBDEV-1643")
@Test
public void testDuplicatesCarsGrid() {
    Grid grid = null;
    Frame fr = null;
    Vec old = null;
    try {
        fr = parse_test_file("smalldata/junit/cars_20mpg.csv");
        // Remove unique id
        fr.remove("name").remove();
        old = fr.remove("economy");
        // response to last column
        fr.add("economy", old);
        DKV.put(fr);
        // Setup random hyperparameter search space
        HashMap<String, Object[]> hyperParms = new HashMap<String, Object[]>() {

            {
                put("_distribution", new DistributionFamily[] { DistributionFamily.gaussian });
                put("_ntrees", new Integer[] { 5, 5 });
                put("_max_depth", new Integer[] { 2, 2 });
                put("_learn_rate", new Double[] { .1, .1 });
            }
        };
        // Fire off a grid search
        GBMModel.GBMParameters params = new GBMModel.GBMParameters();
        params._train = fr._key;
        params._response_column = "economy";
        Job<Grid> gs = GridSearch.startGridSearch(null, params, hyperParms);
        grid = gs.get();
        // Check that duplicate model have not been constructed
        Model[] models = grid.getModels();
        assertTrue("Number of returned models has to be > 0", models.length > 0);
        // But all off them should be same
        Key<Model> modelKey = models[0]._key;
        for (Model m : models) {
            assertTrue("Number of constructed models has to be equal to 1", modelKey == m._key);
        }
    } finally {
        if (old != null) {
            old.remove();
        }
        if (fr != null) {
            fr.remove();
        }
        if (grid != null) {
            grid.remove();
        }
    }
}

Example 2 with Model

use of hex.Model in project h2o-3 by h2oai.

the class ModelsV3 method fillFromImplWithSynopsis.

public ModelsV3 fillFromImplWithSynopsis(Models m) {
    this.model_id = new KeyV3.ModelKeyV3(m.model_id);
    if (null != m.models) {
        this.models = new ModelSchemaBaseV3[m.models.length];
        int i = 0;
        for (Model model : m.models) {
            this.models[i++] = new ModelSynopsisV3(model);
        }
    }
    return this;
}

Example 3 with Model

use of hex.Model in project h2o-3 by h2oai.

the class ModelsV3 method fillFromImpl.

@Override
public ModelsV3 fillFromImpl(Models m) {
    // TODO: this is failing in PojoUtils with an IllegalAccessException.  Why?  Different class loaders?
    // PojoUtils.copyProperties(this, m, PojoUtils.FieldNaming.CONSISTENT);
    // Shouldn't need to do this manually. . .
    this.model_id = new KeyV3.ModelKeyV3(m.model_id);
    this.find_compatible_frames = m.find_compatible_frames;
    if (null != m.models) {
        this.models = new ModelSchemaBaseV3[m.models.length];
        int i = 0;
        for (Model model : m.models) {
            this.models[i++] = (ModelSchemaV3) SchemaServer.schema(this.getSchemaVersion(), model).fillFromImpl(model);
        }
    }
    return this;
}

Example 4 with Model

use of hex.Model in project h2o-3 by h2oai.

the class ModelMetricsBaseV3 method fillFromImpl.

@Override
public S fillFromImpl(ModelMetrics modelMetrics) {
    // If we're copying in a Model we need a ModelSchemaV3 of the right class to fill into.
    Model m = modelMetrics.model();
    if (m != null) {
        this.model = new ModelKeyV3(m._key);
        this.model_category = m._output.getModelCategory();
        this.model_checksum = m.checksum();
    }
    // If we're copying in a Frame we need a Frame Schema of the right class to fill into.
    Frame f = modelMetrics.frame();
    if (null != f) {
        //true == f.getClass().getSuperclass().getGenericSuperclass() instanceof ParameterizedType
        this.frame = new FrameKeyV3(f._key);
        this.frame_checksum = f.checksum();
    }
    PojoUtils.copyProperties(this, modelMetrics, PojoUtils.FieldNaming.ORIGIN_HAS_UNDERSCORES, new String[] { "model", "model_category", "model_checksum", "frame", "frame_checksum" });
    RMSE = modelMetrics.rmse();
    return (S) this;
}

Example 5 with Model

use of hex.Model in project h2o-3 by h2oai.

the class AstRename method apply.

@Override
public ValNum apply(Env env, Env.StackHelp stk, AstRoot[] asts) {
    Key oldKey = Key.make(env.expand(asts[1].exec(env).getStr()));
    Key newKey = Key.make(env.expand(asts[2].exec(env).getStr()));
    Iced o = DKV.remove(oldKey).get();
    if (o instanceof Frame)
        DKV.put(newKey, new Frame(newKey, ((Frame) o)._names, ((Frame) o).vecs()));
    else if (o instanceof Model) {
        ((Model) o)._key = newKey;
        DKV.put(newKey, o);
    } else
        throw new IllegalArgumentException("Trying to rename Value of type " + o.getClass());
    return new ValNum(Double.NaN);
}