public static CNTK.Value get_tensors(CNTK.NDShape shape, float[] src, int indices_begin, int indices_end, CNTK.DeviceDescriptor device)
        {
            var cpu_tensors = Util.get_minibatch_data_CPU(shape, src, indices_begin, indices_end);
            var result      = CNTK.Value.CreateBatch(shape, cpu_tensors, device, true);

            return(result);
        }