Bayesian Network

A statistical model that represents probabilistic relationships among variables using a directed graph structure. In accessibility and assistive technology applications, Bayesian networks are used for behavior recognition—inferring what action a user is performing based on uncertain sensor observations. For example, a Bayesian network can classify whether a person is brushing teeth or applying toothpaste based on the position of objects and movement patterns, even when sensor data is noisy or incomplete. The probabilistic approach handles the natural variability in how different people perform tasks.