Table 1 Parameter settings for the LSTM-CNN model.

From: Dynamic forecasting of China’s carbon market prices by the coupling of macroeconomic indicators and LSTM model

Serial number

Parameter

Unit

Parameter setting

1

Optimizer

RMSProp

2

Learningrate

0.01, decayed by 0.5 every 100 epochs, minimum 1e-6

3

Variable initialization

Xavier initialization

4

L1 regularization

0.001

5

L2 regularization

0.0001

6

Activation function (conv/fc)

ReLU

7

Activation function (LSTM cell)

tanh

8

Activation function (LSTM gate)

sigmoid

9

Activation function (output)

Linear

10

Training epochs

epochs

2000 (early stopping with patience = 50 epochs)

11

Batch size

samples/batch

64

12

Sliding window length

days

30

13

Sliding step

days

1

14

Prediction horizon

days

1

15

Feature dimensions

features/timestep

6

16

Optimizer momentum

0.9

17

Optimizer decay rate

0.0001

18

Data split ratio

Training: 70%; Validation: 15%; Test: 15%