Examples with ColumnValue org.opensearch.ml.common.dataframe.ColumnValue used on opensource projects

Example 6 with ColumnValue

use of org.opensearch.ml.common.dataframe.ColumnValue in project ml-commons by opensearch-project.

the class BatchRandomCutForest method process.

private List<Map<String, Object>> process(DataFrame dataFrame, RandomCutForest forest, Integer actualTrainingDataSize) {
    List<Double> pointList = new ArrayList<>();
    ColumnMeta[] columnMetas = dataFrame.columnMetas();
    List<Map<String, Object>> predictResult = new ArrayList<>();
    for (int rowNum = 0; rowNum < dataFrame.size(); rowNum++) {
        for (int i = 0; i < columnMetas.length; i++) {
            Row row = dataFrame.getRow(rowNum);
            ColumnValue value = row.getValue(i);
            pointList.add(value.doubleValue());
        }
        double[] point = pointList.stream().mapToDouble(d -> d).toArray();
        pointList.clear();
        double anomalyScore = forest.getAnomalyScore(point);
        if (actualTrainingDataSize == null || rowNum < actualTrainingDataSize) {
            forest.update(point);
        }
        Map<String, Object> result = new HashMap<>();
        result.put("score", anomalyScore);
        result.put("anomalous", anomalyScore > anomalyScoreThreshold);
        predictResult.add(result);
    }
    return predictResult;
}