There are 4 repositories under modeling-language topic.
Main repository for developing the 1.x versions of GAMA
Arrays with arbitrarily nested named components.
Represent trained machine learning models as Pyomo optimization formulations
An intuitive modeling interface for infinite-dimensional optimization problems.
Efficiently solving instances of a parameterized family of (possibly mixed-integer) linear/quadratic optimization problems in Julia
Efficient modeling interface for mathematical optimization in Python
Home of the Language Ecosystem for Modeling Microservice Architecture (LEMMA)
An algebraic modeling and automatic differentiation tool in Julia Language, specialized for SIMD abstraction of nonlinear programs.
ML-Quadrat (ML2) is a Model-Driven Software Engineering (MDSE) tool with full code generation and out-of-the-box Machine Learning (ML) support at the modeling layer for creating smart services for the Internet of Things (IoT) and Cyber-Physical Systems (CPS).
JUDO Community Aggragator Repository
An automatic differentiation and algebraic modeling package
Mathematical Programming Toolbox for AMPL/GMPL
Data-Driven Mathematical Optimization with AMPL in Python
A modeling tool for generating a web form from a blockchain model type and validating and submitting the filled out form to a Hyperledger Blockchain
Models (and data) of constrained problems developped with the library PyCSP3
A language for writing device models for computer architecture simulators such as Simics®.
Modelio Extension for Camel Modeling. Camel Designer Module is conceived to help in designing Cloud Application Modelling and Execution Language (CAMEL) ( camel-dsl.org )