Machine learning

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Quick Questions

Shade in the A or B circle for each question.

1. Which statement matches the syllabus wording for machine learning?

A A program has the ability to automatically adapt its own processes and/or data

B A program that only follows fixed instructions written by a programmer

2. In machine learning, what does 'automatic' mean?

A A programmer rewrites the code each time it needs to change

B The program changes itself without a programmer editing it

3. A spam filter gets better at spotting junk email the more emails it sees. What is this an example of?

A A program improving with experience

B A program with fixed rules that never change

4. Machine learning is best described as...

A A type of computer hardware

B A type of AI

5. Which of these can a machine learning program adapt by itself?

A Its own processes and/or its own data

B Only the physical parts of the computer

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1machine learning		AA type of AI where a program automatically adapts its own processes and/or data
2automatic adaptation		BThis is not machine learning because a programmer is making the changes. In machine learning the adaptation is automatic.
3A machine learning program improves with experience as it gets more data		CA program that never changes its processes or data does not improve with experience, so it is not machine learning.
4Machine learning is a type of AI, so it is one way a system can show intelligent behaviour		Daccuracy = accuracy + learned_from(new_data)
5A programmer edits the rules each week to make the system learn		EML ⊂ AI
6A program gives the same output however much experience it gets: machine learning		FThe program changes itself with no programmer editing the code or data

Definitions

machine learning

Fill in the Blanks

Complete each line of code by filling in the missing parts.

Machine learning is a type of __

Machine learning adapts its own _________ and/or data

A program that adapts _____________ with no programmer changing it

A program that improves with __________

Machine learning adapts its own processes and/or ____

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A FUNCTION learn(email, label)

B IF label = 'spam' THEN

C REMOVE email FROM spamData

D ENDIF

E ENDFUNCTION

Question 2

A WHILE playing = TRUE

B result ← playRound(

C IF result = LOSS THEN

D adjustOwnRules()

E ENDIF

F ENDWHILE

Question 3

A experience ← 0

B REPEAT

C experience ← experience + 1

D accuracy ← accuracy - 0.1

E UNTIL experience = 100

Question 4

A READ newData

B WAIT FOR programmer TO EDIT

C OUTPUT 'Rules updated'

Question 5

A FOR each photo IN trainingSet

B guess ← label

C IF guess <> label THEN

D improveModel()

E NEXT photo

Answer Key

Machine learning

Section A: Quick Questions

A — A program has the ability to automatically adapt its own processes and/or data

B — The program changes itself without a programmer editing it

A — A program improving with experience

B — A type of AI

A — Its own processes and/or its own data

Section B: Match the Pairs

machine learning → A type of AI where a program automatically adapts its own processes and/or data

automatic adaptation → The program changes itself with no programmer editing the code or data

A machine learning program improves with experience as it gets more data → accuracy = accuracy + learned_from(new_data)

Machine learning is a type of AI, so it is one way a system can show intelligent behaviour → ML ⊂ AI

A programmer edits the rules each week to make the system learn → This is not machine learning because a programmer is making the changes. In machine learning the adaptation is automatic.

A program gives the same output however much experience it gets: machine learning → A program that never changes its processes or data does not improve with experience, so it is not machine learning.

Section C: Definitions

machine learning — A type of AI where a program automatically adapts its own processes and/or data, improving with experience, with no programmer changing it.

Section D: Fill in the Blanks

Machine learning is a type of AI

Machine learning adapts its own processes
and/or data

A program that adapts automatically
with no programmer changing it

A program that improves with experience

Machine learning adapts its own
processes and/or data

Section E: Spot the Error

C — A machine learning program adapts its own data as it sees new examples. It should ADD the spam email to spamData, not remove it, so the filter improves with experience.

B — The function call is missing its closing bracket. It should be result ← playRound().

D — Machine learning improves with experience, so accuracy should go up as experience grows. It should be accuracy + 0.1, not minus.

B — In machine learning the adaptation is automatic: no programmer changes the rules. The program should update its own rules using the new data.

B — The guess must come from the model's own prediction. Copying the correct label means the model never makes a mistake, so it has nothing to learn from. It should be guess ← predict(photo).