Article: Time Series – Prediction, Seasonality, Confidentiality
Article: Time Series – Prediction, Seasonality, Confidentiality
Time series forecasting is at the heart of finance, logistics, and energy.
Time series forecasting forms the basis for finance, logistics, and energy; key factors include seasonality, trends, and anomalies.
Classic Models: ARIMA, ETS, Prophet. ML: Gradient Boosting on Features
Classic models: ARIMA, ETS, Prophet. ML: Gradient boosting on lags and seasons, RNN/Temporal CNN/Transformers. Multiseries and hierarchical models.
Frequently asked questions
What is feature engineering: lags, moving statistics?
Feature engineering: lags, moving statistics, calendar features. Time splits, walk-forward validation. Aggregations at levels and reconciliation for hierarchies.
Is future information leakage incorrect?
Future information leakage, incorrect splits, regime shifts (changes in patterns), holidays/events.
Does high-quality forecasting require accurate splittings?
High-quality forecasting requires accurate splits, feature engineering, and adaptation to seasonal/event effects.
1) Decompose the series (trend/seasonal/res?
1) Decompose the series (trend/seasonal/residual). 2) Build a basic ARIMA/Prophet. 3) Add an ML model on engineered features. 4) Calibrate and verify stability.
▶ Try it live
Everything above runs in your browser — open Earthquake Wave Propagation Simulation and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.