MathModDB: A Database for Mathematical Models
For researchers in applied mathematics, engineering, and natural sciences, MathModDB addresses the fragmentation of mathematical model information by offering a structured, queryable resource.
MathModDB provides a curated knowledge graph for mathematical models, deployed on the MaRDI Portal, to help researchers find and reuse models across disciplines. The paper demonstrates its use through a plasma physics case study and reports on its current scale.
When researchers need a mathematical model for a research problem, they face a fragmented landscape: relevant formulas, quantities, assumptions, and model variants are scattered across publications and domain-specific conventions. The Mathematical Models Database (MathModDB) addresses this challenge by providing a curated knowledge graph for mathematical models, deployed on the MaRDI Portal as part of the German National Research Data Infrastructure (NFDI). Building on ontology designs presented in earlier work, this paper focuses on MathModDB as a publicly available service. It addresses researchers who use mathematical models in their work -- whether in applied mathematics, engineering, or the natural sciences. We describe its deployment on the Wikibase-powered MaRDI Portal, report on its current scale, and demonstrate its practical use through a walkthrough of an electric discharge modeling use case from plasma physics. We further discuss the ecosystem around MathModDB, including its connection to the MathAlgoDB knowledge graph for numerical algorithms and the MaRDMO documentation tool.