ARIMA vs LTSM
Posted on by Etienne Noumen

What are the advantages of using ARIMA models over LSTMs for forecasting and prediction in finance and economics applications?

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What are the advantages of using ARIMA models over LSTMs for forecasting and prediction in finance and economics applications?

The field of machine learning and artificial intelligence is constantly evolving, and with it, the ways in which we use technology to understand and predict complex financial and economic systems. ARIMA models and Long-Short-Term-Memory (LSTM) networks are two machine learning tools with a lot of potential in this domain. Though both approaches can yield great accuracy, ARIMA models have an edge when forecasting or predicting financial data. This is because they better capture the stationary process present in most financial data; while LSTMs are excellent at modeling non-stationary processes, these tend to be less prominent in financial settings. Furthermore, ARIMA consumes less resources; its training algorithms can require several orders of magnitude fewer calculations than required for training LSTM networks. Thus, if you need accuracy in your finance or economics applications without running up large bills for computation resources, ARIMA should be your go-to machine learning tool!

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What are the advantages of using ARIMA models over LSTMs for forecasting and prediction in finance and economics applications?

Autoregressive integrated moving average (ARIMA) models and long short-term memory (LSTM) models are two commonly used approaches for forecasting and prediction in finance and economics applications.

Here are some advantages of using ARIMA models over LSTMs:

  1. Interpretability: ARIMA models are generally more interpretable than LSTM models, as the parameters of the model have a clear meaning and can be interpreted in terms of the underlying data. This makes it easier to understand the reasons behind the model’s predictions.
  2. Computational efficiency: ARIMA models are generally more computationally efficient than LSTM models, as they have fewer parameters and require less training data. This makes them faster to train and easier to deploy in production environments.
  3. Data requirements: ARIMA models are suitable for modeling time series data that is stationary (i.e., the statistical properties of the data do not change over time) and exhibits a clear trend and/or seasonality. LSTM models, on the other hand, can handle non-stationary data and can model more complex patterns, but they may require more data to do so.

That being said, LSTM models also have some advantages over ARIMA models. For example, LSTM models can handle missing data and can model long-term dependencies in the data more effectively than ARIMA models.

Ultimately, the choice between using an ARIMA model or an LSTM model will depend on the specific characteristics of the data and the requirements of the application. It may be necessary to try both approaches and compare their performance to determine the best model for a given task.


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Machine Learning and Artificial Intelligence have become tools of choice for forecasting and prediction applications in finance and economics. For example, ARIMA models have developed a reputation as reliable predictors of stock prices or demand for certain products based on past data due to their ability to describe high-level trends from data. In contrast, Long Short-Term Memory (LSTMs) are better at understanding complex patterns, but may be overkill for regression problems that can already be addressed with the less-complex ARIMA approach. When applied to stationary time series data, ARIMA is faster to train and good enough for most use cases. Moreover, it offers advantages over LSTMs in terms of scalability: ARIMA is able to scale with higher ones and zeroes than its AI cousins; as such, ARIMA requires less computing power to reach similar results and operate on more datasets simultaneously. Ultimately, the machine learning model we choose will depend on our prediction problem’s complexity – but if you find yourself facing a straightforward regression task in finance or economics the classic ARIMA might just do the trick without taking too much of your precious machine memory!

 

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