#data science

• Annotation — The act of annotating and its result; a structural process through which explanatory notes, metadata tags, comments, or critical interpretations are added to a text, document, or raw data set (images, audio, video). In machine learning and artificial intelligence, this process is essential for creating training data sets, enabling algorithms to recognize specific patterns, objects, or grammatical structures.
• ARIMA model — An autoregressive integrated moving average statistical model widely used in the analysis and forecasting of complex time series. This mathematical tool structurally combines autoregressive processes and moving average components, applying a differencing step to transform non-stationary data into stationary data, facilitating the prediction of economic, meteorological, or financial trends.