TensorFlow (Python) implementation of DeepTCN model for multivariate time series forecasting.

Flavia Giammarino

Last update: Dec 19, 2022

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Overview

DeepTCN TensorFlow

TensorFlow (Python) implementation of multivariate time series forecasting model introduced in Chen, Y., Kang, Y., Chen, Y., & Wang, Z. (2020). Probabilistic forecasting with temporal convolutional neural network. Neurocomputing, 399, 491-501. https://doi.org/10.1016/j.neucom.2020.03.011.

Dependencies

pandas==1.3.4
numpy==1.19.5
tensorflow==2.7.0
tensorflow_probability==0.14.1
plotly==5.3.1
kaleido==0.2.1

Usage

import numpy as np
from deep_tcn_tensorflow.model import DeepTCN

# Generate two time series
N = 1000
t = np.linspace(0, 1, N)
e = np.random.multivariate_normal(mean=[0, 0], cov=[[1, 0.25], [0.25, 1]], size=N)
a = 40 + 30 * t + 20 * np.cos(2 * np.pi * (10 * t - 0.5)) + e[:, 0]
b = 50 + 40 * t + 30 * np.sin(2 * np.pi * (20 * t - 0.5)) + e[:, 1]
y = np.hstack([a.reshape(- 1, 1), b.reshape(- 1, 1)])

# Fit the model
model = DeepTCN(
    y=y,
    x=None,
    forecast_period=100,
    lookback_period=200,
    quantiles=[0.01, 0.1, 0.5, 0.9, 0.99],
    filters=4,
    kernel_size=3,
    dilation_rates=[1, 2],
    loss='nonparametric'
)

model.fit(
    learning_rate=0.01,
    batch_size=64,
    epochs=200,
    verbose=1
)

# Plot the in-sample predictions
predictions = model.predict(index=900)
fig = model.plot_predictions()
fig.write_image('predictions.png', width=750, height=650)

# Plot the out of sample forecasts
forecasts = model.forecast()
fig = model.plot_forecasts()
fig.write_image('forecasts.png', width=750, height=650)

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TensorFlow (Python) implementation of DeepTCN model for multivariate time series forecasting.

Related tags

Overview

DeepTCN TensorFlow

Dependencies

Usage

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