Limitations of computer (mathematical) models

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Modeling & Simulation[1]

In many situations it is not possible to know all of the variables involved.

Let's answer this question by looking at a few different systems and imagining which variables might be the most impactful.

a sports player

If I wanted to create a model of a sports player what variables might I choose? I want to choose a variables that are meaningful. Maybe:

  1. numberA unit of abstract mathematical system subject to the laws of arithmetic. of injuries
  2. age
  3. numberA unit of abstract mathematical system subject to the laws of arithmetic. of points scored
  4. numberA unit of abstract mathematical system subject to the laws of arithmetic. of games won
  5. numberA unit of abstract mathematical system subject to the laws of arithmetic. of games lost

Limitation: Of course if I haven't considered their current health, current ability, and their strength compared to a certain team, I would not have an accurate model.

I think these variables MIGHT help me model a sports figure.

a country

Maybe I wanted to create a model of a country. The variables I choose might be related to what I want to do with my model.

  1. percentage of population with electricity access
  2. electricity - consumption
  3. electricity - exports
  4. electricity - imports

These variable are used from the CIA world factbook with gratitude. I wonder why they create models of EVERY COUNTRY ON EARTH?

Limitation: I wonder what happens to electricity when the gas is suddenly cut off? Or if the government introduces a huge subsidy for renewable energy? I would not have an accurate model.

a car

I wonder how these variables might inform my choices about buying a car:

  1. total cost
  2. monthly average gasoline cost
  3. monthly repair cost
  4. monthly resale value

Limitation: I didn't include numberA unit of abstract mathematical system subject to the laws of arithmetic. of unscheduled repair visits nor did I include numberA unit of abstract mathematical system subject to the laws of arithmetic. of repair recalls or warranty visits.


Standards

  • DescribeGive a detailed account or picture of a situation, event, pattern or process. the limitations of computer (mathematical) models.

References