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AI BaseDeep Learning
04 · Representation learning

Deep Learning

How layered differentiable programs learn features, dynamics, and generative distributions from data.

Academic pathway3 curated papersReadable formulas
Learning outcomes
  • Trace forward and backward passes through common architectures
  • Understand convolution, recurrence, residual paths, and latent variables
  • Diagnose vanishing gradients, overfitting, and mode collapse
Core equations · rendered for reading, not code
Backpropagation update
w ← w − η ∂L/∂w

Each parameter receives a local derivative of the loss and is updated by gradient descent.

VAE evidence lower bound
ELBO = E_q[log p(x|z)] − KL(q(z|x) ‖ p(z))

Balances faithful reconstruction with a latent distribution close to a prior.

GAN objective
min_G max_D E[log D(x)] + E[log(1 − D(G(z)))]

A generator and discriminator play a minimax game until generated and real samples become difficult to distinguish.

Deep study guide

A reusable technical reading framework for moving from vocabulary to working understanding. Use it alongside the formulas and papers below.

4-part knowledge map
01

Conceptual map

How layered differentiable programs learn features, dynamics, and generative distributions from data. Start by naming the representation, objective, and source of evidence in any system you study. This habit separates a useful model explanation from a list of buzzwords.

02

Technical reasoning

Use the learning outcomes as checks for understanding: Trace forward and backward passes through common architectures; Understand convolution, recurrence, residual paths, and latent variables; Diagnose vanishing gradients, overfitting, and mode collapse. For each claim, ask what assumptions make it true, what data it needs, and how it could fail.

03

Equations to implementation

Translate each equation into a small experiment before treating it as memorized knowledge. Backpropagation update: Each parameter receives a local derivative of the loss and is updated by gradient descent. VAE evidence lower bound: Balances faithful reconstruction with a latent distribution close to a prior. GAN objective: A generator and discriminator play a minimax game until generated and real samples become difficult to distinguish.

04

Evidence and research practice

Read primary work with a repeatable lens: problem, method, data, measurement, limits, and what would change your mind. This section starts with “Deep Residual Learning for Image Recognition”, “Generative Adversarial Nets”, “Auto-Encoding Variational Bayes”. Follow citations outward only after you can explain the central claim in your own words.

Build exercise

Implement a minimal example using Backpropagation update; record inputs, outputs, and a failure case.

Evaluate exercise

Define a baseline, a success metric, a stress test, and the evidence required before you trust an improvement.

Extend exercise

Choose one paper from the library, reproduce a small claim, then write down the questions its evaluation leaves open.

Research library

Primary sources and peer-reviewed work to deepen this page.

Each card includes a summary and direct paper link
CVPR2015

Deep Residual Learning for Image Recognition

K. He · X. Zhang · S. Ren · J. Sun

Introduces residual skip connections, enabling much deeper networks to optimize reliably.

#ResNet#vision
Read paper / source
NeurIPS2014

Generative Adversarial Nets

I. Goodfellow et al.

Frames generation as a two-player minimax game between a generator and discriminator.

#generation#GAN
Read paper / source
ICLR2013

Auto-Encoding Variational Bayes

D. P. Kingma · M. Welling

Makes variational inference trainable with stochastic gradient methods and the reparameterization trick.

#VAE#probabilistic
Read paper / source
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