Computer Science (CS) Extended Essay Exemplar: How do AI-based Image… | RevisionDojo

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IB Computer Science (CS) SL Extended Essay Example

How do AI-based Image Compression Techniques (TensorFlow Autoencoder and CompressAI) compare to the traditional JPEG and PNG compression techniques in terms of file size reduction, visual quality retention, and computational time efficiency?SL

Official IB Result

IB Grade: A

Criteria A: Focus and Method

5/6

Criteria Strands

A.1Topic Communication

Excellent

A.2Research Question

Excellent

A.3Methodology

Moderate

Criteria Feedback

You communicate a clear and relevant investigation topic from the outset.
Your research question is specific and stays aligned with the main comparison throughout.
You describe a generally reproducible procedure with sensible choices of dataset, metrics, and model setup.

Some timing and decoding steps are not fully comparable across the methods.
A few methodological choices need stronger justification, especially the sample size and fairness of the operating points.
The autoencoder pipeline is not measured in a way that fully matches the stored compressed representation.

Criteria B: Knowledge and Understanding

4/6

Criteria Strands

B.1Subject Knowledge

Good

B.2Use of Terminology

Good

Criteria Feedback

You use a wide range of relevant compression terminology accurately in most places.
Your explanations of JPEG, PNG, and learned compression show solid subject knowledge.
You support technical ideas with equations, definitions, and relevant source material.

Some terminology is used imprecisely, especially around the autoencoder recovery process.
A few explanations overstate what the evidence proves, such as how to interpret SSIM or compression efficiency.
Some technical descriptions need sharper distinction between dimensional reduction and actual compression.

Criteria C: Critical Thinking

12/12

Criteria Strands

C.1Research Application

Moderate

C.2Analysis

Moderate

C.3Discussion and Evaluation

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Criteria D: Presentation

4/4

Criteria Strands

D.1Structure

Excellent

D.2Layout

Good

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Loading scores...

Official IB Result

IB Grade: A

Criteria A: Focus and Method

5/6

Criteria Strands

A.1Topic Communication

Excellent

A.2Research Question

Excellent

A.3Methodology

Moderate

Criteria Feedback

You communicate a clear and relevant investigation topic from the outset.
Your research question is specific and stays aligned with the main comparison throughout.
You describe a generally reproducible procedure with sensible choices of dataset, metrics, and model setup.

Some timing and decoding steps are not fully comparable across the methods.
A few methodological choices need stronger justification, especially the sample size and fairness of the operating points.
The autoencoder pipeline is not measured in a way that fully matches the stored compressed representation.

Criteria B: Knowledge and Understanding

4/6

Criteria Strands

B.1Subject Knowledge

Good

B.2Use of Terminology

Good

Criteria Feedback

You use a wide range of relevant compression terminology accurately in most places.
Your explanations of JPEG, PNG, and learned compression show solid subject knowledge.
You support technical ideas with equations, definitions, and relevant source material.

Some terminology is used imprecisely, especially around the autoencoder recovery process.
A few explanations overstate what the evidence proves, such as how to interpret SSIM or compression efficiency.
Some technical descriptions need sharper distinction between dimensional reduction and actual compression.

Criteria C: Critical Thinking

12/12

Criteria Strands

C.1Research Application

Moderate

C.2Analysis

Moderate

C.3Discussion and Evaluation

Moderate

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Criteria D: Presentation

4/4

Criteria Strands

D.1Structure

Excellent

D.2Layout

Good

Criteria Feedback

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.