Examples with LogisticRegressionTrainBatchOp com.alibaba.alink.operator.batch.classification.LogisticRegressionTrainBatchOp used on opensource projects

Example 6 with LogisticRegressionTrainBatchOp

use of com.alibaba.alink.operator.batch.classification.LogisticRegressionTrainBatchOp in project Alink by alibaba.

the class Chap14 method c_4.

static void c_4() throws Exception {
    // load pipeline model
    PipelineModel feature_pipelineModel = PipelineModel.load(DATA_DIR + FEATURE_MODEL_FILE);
    // prepare stream train data
    CsvSourceStreamOp data = new CsvSourceStreamOp().setFilePath("http://alink-release.oss-cn-beijing.aliyuncs.com/data-files/avazu-ctr-train-8M.csv").setSchemaStr(SCHEMA_STRING);
    if (!new File(DATA_DIR + INIT_MODEL_FILE).exists()) {
        CsvSourceBatchOp trainBatchData = new CsvSourceBatchOp().setFilePath("http://alink-release.oss-cn-beijing.aliyuncs.com/data-files/avazu-small.csv").setSchemaStr(SCHEMA_STRING);
        // train initial batch model
        LogisticRegressionTrainBatchOp lr = new LogisticRegressionTrainBatchOp().setVectorCol(VEC_COL_NAME).setLabelCol(LABEL_COL_NAME).setWithIntercept(true).setMaxIter(10);
        feature_pipelineModel.transform(trainBatchData).link(lr).link(new AkSinkBatchOp().setFilePath(DATA_DIR + INIT_MODEL_FILE));
        BatchOperator.execute();
    }
}