How much a signal matches itself when it's shifted in time, used in areas like sound processing or physics to find repeating patterns.
By analyzing the autocorrelation, scientists can see if a sound wave repeats at certain intervals.
透過分析自相關性,科學家們可以看出聲波是否在特定間隔重複。
In statistics, how a value relates to its past values over time, helping to find regular cycles in data.
The autocorrelation showed that the sales data had a peak every holiday season.
自相關性顯示,銷售數據在每個假日季節都有一個高峰。