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AI-203 AI & Data

Deep Learning with PyTorch

From a single neuron to trained multi-layer networks: forward and backward propagation implemented by hand first, then idiomatic PyTorch — tensors, autograd, DataLoaders, training loops, regularization and diagnostics. Learners train, overfit, and then fix an MLP on real data.

B3Practitioner
6modules
42skill atoms
2role journeys
Curriculum

What this course covers.

6 modules, 42 named skill atoms. Expand any module to see them.

1Neural Foundations7 skill atoms
perceptronactivationsforward pass by handReLU vs sigmoid vs tanhweight initializationlayer shape arithmeticbias terms
2Backpropagation Demystified7 skill atoms
chain rulegradientsmanual implementationcomputational graphsnumerical gradient checkvanishing gradientsloss derivatives
3PyTorch Idioms7 skill atoms
tensorsautogradnn.ModuleDataLoaderdevice placementzero_grad disciplinestate_dict save & load
4Training Discipline7 skill atoms
loss curvesoverfittingdropoutearly stoppingweight decaybatch normcheckpoint selection
5Optimization Deep-Dive7 skill atoms
SGD→Adamschedulershyperparameter tuningmomentumcosine & step decaywarmupbatch size vs learning rate
6Diagnostics Lab7 skill atoms
dead layersexploding gradientsfix-it drillsNaN loss triagegradient clippingactivation statisticsoverfit-one-batch sanity check
Where it fits

AI-203 in the role journeys.

This course appears in 2 of our 45 role journeys. Here is what a learner takes immediately before and after it in each.

AI / ML Engineer

Practitioner stage
AI-202AI-203AI-215

Data Scientist

Professional stage
AI-108AI-203AI-205

Roles this course serves

The capability ladder

This course is authored to band B3.

Every course we run is written to one rung of the CASI ladder, so a plan can be assembled to take a team from where they are to where they need to be.

What do B1–B6 mean?The CASI Capability Ladder — click to expand

Every course targets a band on the CASI Capability Ladder — our six-band proficiency scale, anchored to open standards (O*NET, ESCO, NICE, NIST AI RMF, Bloom's). A band tells you how deep a course goes, and what evidence proves it.

What the learner can doTypical evidence
B1
AwareUnderstands concepts and vocabulary; uses tools with guidance
Knowledge checks
B2
FoundationPerforms standard tasks correctly in familiar contexts
Guided labs, autograded exercises
B3
PractitionerDelivers complete pieces of work independently
Scenario labs, proctored hands-on exams
B4
ProfessionalHandles production-grade complexity, trade-offs and failure modes
Break-fix drills, design defenses
B5
AdvancedEngineers systems end-to-end under constraints; leads others
Rubric-scored capstones, vivas
B6
ExpertSets direction; recognised authority across teams
Portfolio + panel evaluation

A note on B6. Courses in this catalog target B1–B5. B6 is not taught — it is recognised, through a portfolio and a panel, once someone is setting direction for others. Every journey here is built to land a learner at B5.

Next step

Run AI-203 for your team.

This course runs at several lengths depending on how deep you need to go and how much of it your people already have. Tell us who is being trained and we will scope it.

Add it to a training plan Talk to our team Check your team’s level free