domaininformed

Domaininformed refers to an approach in artificial intelligence and data science that emphasizes incorporating explicit domain knowledge into the design, training, and deployment of models and systems. It contrasts with purely data-driven methods by leveraging information about the real-world context, constraints, and processes that govern the task at hand.

Techniques commonly associated with domaininformed methods include embedding constraints into models or loss functions, using ontologies or knowledge graphs to structure features, and blending data-driven components with model-based, rule-based, or physics-inspired modules. Domaininformed practice also encompasses feature engineering guided by expert knowledge and the use of priors to regularize learning when data are sparse.

Applications span fields such as medicine, where clinical guidelines constrain predictions; geosciences and environmental science, where physical laws and ecological relationships inform models; finance, where regulatory and market-structure knowledge shapes risk assessments; and natural language processing, where domain-specific lexicons and ontologies improve understanding.

Benefits include improved data efficiency, improved interpretability, and adherence to real-world constraints. Challenges include integrating heterogeneous knowledge sources, potential biases from incorrect domain assumptions, and increased model complexity. Domaininformed approaches often overlap with related ideas such as physics-informed neural networks, knowledge-based AI, and constrained optimization.

See also domain knowledge, physics-informed neural networks, knowledge graphs, constrained optimization, and explainable AI.