Python practice in Deep Learning
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ReLU Activation Audit
ML engineer inspecting which supplied activations are zero and which are positive.
networks. Free room.
Loss Alert
On-call ML engineer: the training monitor reports 'loss = inf'.
foundations. Free room.
Softmax Meltdown
On-call ML engineer: the recommendation model is returning NaN probabilities.
foundations. Free room.
Weight Initialization Review
ML engineer replacing an all-zero initializer before training a classifier.
networks. Free room.
Batch Stats Bug
On-call ML engineer: image tagger gives inconsistent scores across a minibatch.
training. Account access required.
Dense-Layer Gradient Review
ML engineer checking a linear layer backward pass against its input and parameter shapes.
backprop. Account access required.
Momentum State Review
ML engineer checking a momentum update while preserving supplied optimizer state.
training. Account access required.
Sigmoid Gradient Review
ML engineer computing finite sigmoid derivatives for large positive and negative scores.
backprop. Account access required.
Conv Crash
On-call ML engineer: edge-detection step returns wrong-sized tensors.
convnets. Account access required.
Embedding Lookup and Gradient Review
ML engineer checking lookup copies and repeated-token gradient accumulation.
embeddings. Account access required.
Precision, Recall and Threshold Review
ML engineer comparing metrics and an explicitly defined lowest-feasible-threshold rule.
classification. Account access required.
Recurrent State Review
ML engineer tracing a tanh recurrent state through an input sequence.
rnns. Account access required.
Attention Scaling and Mask Review
ML engineer repairing attention values and masked-row behavior; sequence-memory optimization is outside this exercise.
attention. Account access required.
CNN Backprop Bug
On-call ML engineer: custom conv layer has broken gradient, blocking release.
convnets. Account access required.
Gradient Clip Failure
On-call ML engineer: language model fine-tune exploding on batch 3.
training. Account access required.
Positional Encoding Regression
On-call ML engineer: transformer outputs garbage for positions beyond 128.
attention. Account access required.
BPTT Overflow
On-call ML engineer: time-series classifier producing wrong BPTT gradients.
rnns. Account access required.
Tied-Embedding Gradient Review
ML engineer accumulating input-lookup and output-projection contributions to one shared embedding table.
embeddings. Account access required.
Transformer Debugging: Forward, Loss and Context
ML engineer debugging a small unmasked transformer, a stable loss and a cropped-context greedy decoder across three exercises.
attention, rnns, foundations. Account access required.
Attention Temperature Review
ML engineer inspecting how attention temperature changes weights and weighted values, without assuming improved answer calibration.
attention. Account access required.