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Debugging, The Scientific Method, and Mastermind PowerPoint PPT Presentation


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Debugging, The Scientific Method, and Mastermind. The Scientific Method Building a Model of Our World. Getting inside the black box. Building a General Model. What causes cancer?. We ask a series of questions, conduct experiments, and try to associate cause and effect.

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Debugging, The Scientific Method, and Mastermind

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Debugging the scientific method and mastermind l.jpg

Debugging, The Scientific Method, and Mastermind


The scientific method building a model of our world l.jpg

The Scientific MethodBuilding a Model of Our World

Getting inside the black box


Building a general model l.jpg

Building a General Model

What causes cancer?

We ask a series of questions, conduct experiments, and try to associate cause and effect.


Diagnosing specific cases l.jpg

Diagnosing Specific Cases

What is wrong with this patient?

Now, in a specific case, we conduct tests and compare the answers to the disease model that we have already built.


Diagnosis a different domain l.jpg

Diagnosis – A Different Domain

What’s wrong with the car?


What s common to these examples l.jpg

What’s Common to These Examples?

  • There’s some underlying situation.

  • We cannot directly observe the entire system.

  • But we can “probe” it with specific questions. The answers we get help us to build a more and more complete model of the system.

  • We want to ask as few questions as possible in the process.

    • Why?


So how should we choose our questions l.jpg

So How Should We Choose Our Questions?

We want to find a specific location in this territory. What’s the most efficient way to proceed?


With each answer we get a better model l.jpg

With Each Answer We Get a Better Model

  • Begin with an initial model that is as rich as possible.

  • Loop until only one possible answer remains:

    • Based on what we know so far, choose a question that cuts out as many possibilities as we can.

    • Use the answer to build a better model.


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Mastermind – The Game


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How To Play

  • Player 1 creates a pattern of colors in her 4 holes (the inside of the black box).

  • Player 2 must discover the pattern through a series of guesses (experiments) and replies (results). At each move:

  • Player 2 puts down a candidate pattern.

  • Player 1 replies with a set of black and white pegs:

    • Each black peg corresponds to a peg in the right place.

    • Each white peg corresponds to a correct peg in the wrong place.


An example l.jpg

An Example


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You Can Play Online

http://www.irt.org/games/js/mind/


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