
Visibility Graph Analysis
Visibility Graph Analysis (VGA) is a method used to transform a time series—like stock prices or weather data—into a network of interconnected points. Each point in the series becomes a node, and connections are made based on a "visibility" criterion: two points are linked if a line connecting them doesn't intersect any other data point. This network structure helps analyze patterns, complexity, and relationships within the data, making it easier to identify significant features or trends. VGA provides insights into the data's dynamics by leveraging principles from graph theory, offering a visual and mathematical way to understand temporal information.