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Understanding Abstraction in Modeling and Simulation: A Focus on Rabbit Ecosystems

This resource delves into the concept of abstraction in modeling and simulation, highlighting its necessity in simplifying complex real-world problems. It emphasizes how assumptions play a critical role in developing models, particularly in the context of rabbit ecosystems. By addressing both the nonliving (e.g., water, weather) and living factors (e.g., rabbit characteristics, interactions with plants and people), this guide illustrates how abstraction can be applied variably depending on the modeler's goals. Ultimately, it showcases the importance of careful consideration in assumptions to ensure valid outcomes.

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Understanding Abstraction in Modeling and Simulation: A Focus on Rabbit Ecosystems

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Presentation Transcript

  1. New Mexico Computer Science For All Abstraction in Modeling and Simulation Maureen Psaila-Dombrowski

  2. Abstraction • Abstraction is Simplification • Why? • “Real world” problems are too complicated • Must simply in order to model • Ignoring some details or parts so that you can focus on what is important to you at that time. • As your interests change the amount of abstraction you need can change too.

  3. Assumptions • Abstraction involves assumptions (things that you take to be true). • Before abstraction • During abstraction • After abstraction during model development • Assumptions are what the modeler assumes when moving from the real world problem to a model. • Sometimes a simplification • Sometimes a specification • Assumptions need to be carefully considered • Affect the outcome of the model • Should be validated

  4. Pond Ecosystem

  5. Applying Abstraction:Modeling Rabbit’s Ecosystem There are many things that affect Rabbit populations: • Nonliving • Water • Soil • Weather • Disasters • Pollution • Living • Rabbit Characteristics • Birth • Death • Metabolism • Infection • People • Plants • Other animals • Microscopic

  6. Applying Abstraction:Modeling Rabbit’s Ecosystem There are many things that affect Rabbit populations: • Nonliving • Water • Soil • Weather • Disasters • Pollution • Living • Rabbit Characteristics • Birth • Death • Metabolism • Infection • People • Plants • Other animals • Microscopic

  7. Run simple rabbit model

  8. Applying Abstraction:Modeling Rabbit’s Ecosystem There are many things that affect Rabbit populations: • Nonliving • Water • Soil • Weather • Disasters • Pollution • Living • Rabbit Characteristics • Birth • Death • Metabolism • Infection • People • Plants (+ regrowing) • Other animals • Microscopic

  9. Run more advanced rabbit model

  10. Applying Abstraction:Modeling Rabbit’s Ecosystem There are many things that affect Rabbit populations: • Nonliving • Water • Soil • Weather • Disasters • Pollution • Living • Rabbit Characteristics • Birth • Birth rate • Death • Metabolism • Infection • People • Plants (+ regrowing) • Caloric value or energy • Other animals • Birth rate • Microscopic

  11. Summary • Abstraction is required for modeling • Can vary the amount of abstraction as needed • Abstraction involves assumption. • Assumptions can affect the outcome of the model

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