Time series forecasting involves building models through historical analysis and using them to make observations and drive future strategic decision-making. When we associate a temporal or time component to the forecast, it becomes Time Series Forecasting and the data is called as Time Series Data.
In statistical terms, time series forecasting is the process of analyzing the time series data using statistics and modeling to make predictions and informed strategic decisions. It falls under Quantitative Forecasting.
To use time-series data and develop a model, you need to understand the patterns in the data over time. These patterns are classified into four components, which are:
Trend: It represents the gradual change in the time series data. The trend pattern depicts long-term growth or decline.
Level: It refers to the baseline values for the series data if it were a straight line
Seasonality: It represents the short-term patterns that occur within a single unit of time and repeats indefinitely.
Noise: It represents irregular variations and is purely random. These fluctuations are unforeseen, unpredictable, and cannot be explained by the model
Time Series Forecasting can be used in:
Stock Price Prediction, E-Commerce Sales Prediction, Weather Predicition and many more
Zindi has hosted some challenges based on Time-Series Forecasting Solutions.