Exemplo n.º 1
0
        /// <summary>
        /// Create a list of <see cref="SweepableEstimator"/> for featurizing catalog columns.
        /// </summary>
        /// <param name="outputColumnNames">output column names.</param>
        /// <param name="inputColumnNames">input column names.</param>
        internal SweepableEstimator[] CatalogFeaturizer(string[] outputColumnNames, string[] inputColumnNames)
        {
            Contracts.Check(outputColumnNames.Count() == inputColumnNames.Count() && outputColumnNames.Count() > 0, "outputColumnNames and inputColumnNames must have the same length and greater than 0");

            var option = new OneHotOption
            {
                InputColumnNames  = inputColumnNames,
                OutputColumnNames = outputColumnNames,
            };

            return(new SweepableEstimator[] { SweepableEstimatorFactory.CreateOneHotEncoding(option), SweepableEstimatorFactory.CreateOneHotHashEncoding(option) });
        }
Exemplo n.º 2
0
        private SweepableEstimatorPipeline CreateSweepbaleEstimatorPipeline()
        {
            var concat = SweepableEstimatorFactory.CreateConcatenate(new ConcatOption());
            var replaceMissingValue = SweepableEstimatorFactory.CreateReplaceMissingValues(new ReplaceMissingValueOption());
            var oneHot   = SweepableEstimatorFactory.CreateOneHotEncoding(new OneHotOption());
            var lightGbm = SweepableEstimatorFactory.CreateLightGbmBinary(new LgbmOption());
            var fastTree = SweepableEstimatorFactory.CreateFastTreeBinary(new FastTreeOption());

            var pipeline = new SweepableEstimatorPipeline(new SweepableEstimator[] { concat, replaceMissingValue, oneHot, lightGbm, fastTree });

            return(pipeline);
        }
Exemplo n.º 3
0
        private MultiModelPipeline CreateMultiModelPipeline()
        {
            var concat = SweepableEstimatorFactory.CreateConcatenate(new ConcatOption());
            var replaceMissingValue = SweepableEstimatorFactory.CreateReplaceMissingValues(new ReplaceMissingValueOption());
            var oneHot   = SweepableEstimatorFactory.CreateOneHotEncoding(new OneHotOption());
            var lightGbm = SweepableEstimatorFactory.CreateLightGbmBinary(new LgbmOption());
            var fastTree = SweepableEstimatorFactory.CreateFastTreeBinary(new FastTreeOption());

            var pipeline = new MultiModelPipeline();

            pipeline = pipeline.AppendOrSkip(replaceMissingValue + replaceMissingValue * oneHot);
            pipeline = pipeline.AppendOrSkip(concat);
            pipeline = pipeline.Append(lightGbm + fastTree);

            return(pipeline);
        }