The Spatio-Temporal Epidemiological Modeler (STEM) is a tool designed to help scientists and public health officials create and use models of emerging infectious diseases. STEM uses mathematical models of diseases (based on differential equations) to simulate the development or evolution of a disease in space and time (e.g., avian flu or salmonella). These models could aid in understanding, and potentially preventing, the spread of such diseases. STEM also comes pre-configured with a vast amount of reference or denominator data for the entire world. By using and extending the data and models in STEM it is possible to rapidly prototype and test models for emerging infectious disease. STEM also provides tools to help you compare and validate your models. As an open source project, the ultimate goal of STEM is to support and encourage a community of scientists that not only use STEM as a tool but also contribute back to it. STEM is designed so that models and scenarios can be easily shared, extended, and built upon.
STEM Documentation
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Release Planning
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Please also see our website and What's New in STEM
Next Release To Come January 30, 2015
V2.0.2 Now Available
- Bug Fixes
- Updated Dengue Model and Scenario
- New Campylobacter Scenario
V2.0.1 Included
- Bug Fixes
- Updated Code Generator
- New Campylobacter Model and Documentation
- New Dengue Model and Scenario
V2.0.0 Included
- Bug Fixes
- Performance Improvements
- New Stochastic Model Solver
- Draggable Solver Objects
- Visual Editor (Integrated UI for creating new models of disease including domain specific language for epi modeling)
- New Measles Model
- Directionally Biased Mixing Model
- New Model Generator (Makes it easy for domain experts to create new STEM Models--no programming required!!)
- New Apache Library
...Future Features
Release Engineering
STEM releases are created by the team of STEM committers and uploaded to Eclipse on a regular basis.
Documentation for the process may be found on the STEM Releng page.
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Click on the header for this section to view the Disclaimer.