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