Adjusting for Autocorrelated Errors in Neural Networks for Time Series

Fan-Keng Sun

Last update: Nov 5, 2022

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Deep Learning AdjustAutocorrelation

Overview

Adjusting for Autocorrelated Errors in Neural Networks for Time Series

This repository is the official implementation of the paper "Adjusting for Autocorrelated Errors in Neural Networks for Time Series" (arXiv link).

For simplicity, we only provide the code for time series forecasting. However, it is straightforward to implement our method with other models on other time series tasks as described in the appendix of the paper.

Requirements

To install requirements:

pip3 install -r requirements.txt

Datasets

Available datasets are located in the directory data/forecasting. Traffic is not included because it exceeds the 100MB size limit set by Github. However, you can download it here and format the it into a .npy file. ADI-related datasets are not released because they are proprietary.

To use your own dataset, format it into a numpy array with size TxN and saved it into the data directory as a .npy file.

Training and Evaluation

Example commands can be found in run.sh.

Citation

@inproceedings{sun2021adjusting,
    title={Adjusting for Autocorrelated Errors in Neural Networks for Time Series Regression and Forecasting}, 
    author={Fan-Keng Sun and Christopher I. Lang and Duane S. Boning},
    booktitle = {Advances in Neural Information Processing Systems},
    year={2021},
}

Comments

some question about 𝐗_𝑡−𝜌𝐗_(𝑡−1) in the code

Hello! as the paper said，the input and output should be： but the code in forecasting_runner: if args.inp_adj: x = torch.cat([avg[None].repeat(bs, 1, 1), x], dim=1) x = x[:, 1:] - rho * x[:, :-1] prd_y = self.model(x) if args.out_adj: prd_y += rho * x[:, -1] the x[:, -1] under has changed which mean that x[:, -1]=x[:, 1:] - rho * x[:, :-1] instead of x_{t-1}. Do I misunderstand?

opened by Lanturewen 1
i have some questions about forecasting_runner.py

Hey, bro, I don't quite understand the error correction of the input and output of the prediction part in the code. Why should the average value be added and subtracted in the input correction, and why should the Rho multiplied by the last column of X be added in the output correction? These things don't seem to be reflected in the paper. Can you help me solve them?My email is [email protected]

opened by pharaohback 1

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Adjusting for Autocorrelated Errors in Neural Networks for Time Series

Related tags

Overview

Adjusting for Autocorrelated Errors in Neural Networks for Time Series

Requirements

Datasets

Training and Evaluation

Citation

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Comments

some question about 𝐗_𝑡−𝜌𝐗_(𝑡−1) in the code

i have some questions about forecasting_runner.py

Owner

Fan-Keng Sun

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