Lesson 308
NLP & Computer Vision
Convolution · Attention · Representations
1:00How convolutional networks teach machines to see, and how attention-based language models teach machines to read — two fields, one shared engine of learned representations.
By the end, you can
- Explain what "learned representations" means and why it is the shared engine of vision and language.
- Describe an image as a numerical tensor and state its three dimensions.
- Apply the convolution output-size formula (W − K + 2P) / S + 1 to compute a feature map's dimensions.
- Explain spatial locality and parameter sharing, and state what property the latter gives a filter.
- Describe the three-layer feature hierarchy produced by stacking convolution layers.
- Distinguish classification, detection, and segmentation by the spatial precision of their outputs.
- Explain how word embeddings encode semantic relationships as directions in vector space.
- Describe the vanishing-gradient problem in RNNs and explain how self-attention addresses it.
- Define the roles of Query, Key, and Value in self-attention.
- Explain how LLMs are trained (next-token prediction, self-supervised, pretrain then fine-tune).
- Articulate the distinction between statistical pattern matching and human comprehension, and why it matters.
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