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🤖AI & ML

Artificial intelligence, machine learning, and data science

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Test yourself: Top 30 AI & ML concepts questionsMultiple choice, with the correct answer and why it is correct on every question. Free, no sign-in.

Concepts in AI & ML, page 17

advanced2 min read

Two-Stream ConvNets: Seeing What vs. How It Moves

Two-Stream ConvNets split video analysis into two paths: a spatial stream sees *what* is in a frame, and a temporal stream sees *how* it moves via optical flow. This is used for action recognition, like telling 'typing' from 'waving'.

advanced2 min read

Logging Model Explanations, Not Just Predictions

Log *why* your model makes a prediction, not just the output. This captures the model's reasoning, creating a debuggable audit trail. It's essential for diagnosing model drift and ensuring fairness.

LLM Red Teaming: Adversarial Security Testing
intermediate2 min read

LLM Red Teaming: Adversarial Security Testing

LLM Red Teaming is a simulated attack where you proactively try to break your own AI to find security flaws. It's used to test for vulnerabilities like prompt injection or data leakage, which traditional security tools miss.

Word Embeddings: Turning Words into Math
easy2 min read

Word Embeddings: Turning Words into Math

Word embeddings turn words into vectors, where distance equals a difference in meaning. They power features like search relevance and text classification by letting algorithms 'understand' context.

advanced2 min read

Correlation Filters: Fast and Robust Object Tracking

Correlation filters track objects by learning a template that gives a peak response at the object's location. This makes them extremely fast for real-time visual tracking. The footgun: basic versions fail when the object changes scale or is occluded.

advanced2 min read

DDM: Detecting Drift with Error Rate Statistics

DDM acts as a statistical alarm on your model's error rate, watching for spikes that signal the underlying data has changed. Use it for online binary classification with immediate feedback, like spam filtering.

LLM Guardrails: Keeping Model Outputs on Track
intermediate2 min read

LLM Guardrails: Keeping Model Outputs on Track

LLM guardrails are safety policies that steer model outputs, acting like bumpers in a bowling alley to prevent responses from going off-topic, leaking data, or generating harmful content. They are crucial for topic control and preventing prompt injections.

easy2 min read

Convolutional Neural Networks: Finding Patterns with Filters

A CNN learns to spot features by sliding optimized filters over data like images, audio, or text. It's the go-to for computer vision, but a common mistake is thinking it's the only modern tool, as transformers sometimes replace it.

advanced2 min read

Particle Filters for Object Tracking

A particle filter tracks an object by maintaining a cloud of possible states ('particles'), not one best guess. It's used to follow objects through clutter and occlusion, like tracking a face in a crowd.

Adversarial Attacks: Tricking LLMs into Misbehaving
intermediate2 min read

Adversarial Attacks: Tricking LLMs into Misbehaving

Adversarial attacks are inputs designed to trick an LLM, bypassing its safety alignment. This is how "jailbreaks" coax models into generating harmful content. The footgun is assuming safety training makes a model foolproof; it just makes attacks more subtle.

Transfer Learning: Don't Train Models from Scratch
easy2 min read

Transfer Learning: Don't Train Models from Scratch

Transfer learning means not training a model from zero. You start with a model pre-trained on a large, general dataset, then fine-tune it for your specific task. This is common in image recognition, using a general model to learn a niche classification.

advanced2 min read

DeepSORT: Adding Visual Memory to Object Tracking

DeepSORT adds a 'visual memory' to object tracking, using a deep learning model to re-identify objects after they're hidden. It's used in surveillance and autonomous driving to maintain consistent IDs across frames.

easy2 min read

Workflow Engine: The Conductor for Your Business Logic

A workflow engine conducts your business logic, ensuring complex tasks run in the right order. It's for multi-step processes like order fulfillment or data pipelines. The footgun is building one from scratch—you'll poorly reinvent state management and retries.

intermediate2 min read

ML Interpretability: Cracking Open the Black Box

ML interpretability cracks open the 'black box' to explain *why* a model made a specific decision. It's essential in high-stakes fields like finance or medicine to ensure automated decisions are fair. The footgun is trusting accuracy alone.

intermediate2 min read

Recurrent Neural Networks: Networks with Memory

An RNN is a neural network with a memory loop, processing sequential data by feeding its own output back in as input. It's used for text generation or time-series analysis where context is key.

advanced2 min read

Temporal Segment Networks: Seeing the Whole Video Story

Temporal Segment Networks (TSN) understand video actions by sampling sparse snippets across the entire timeline. This gives a model long-range context to distinguish complex actions.

intermediate2 min read

Generative Adversarial Network (GAN)

A GAN trains two networks in competition: a generator that fabricates fake samples and a discriminator that judges real versus fake. Their adversarial game pushes the generator toward realistic outputs, enabling image synthesis and data generation without…

intermediate2 min read

Value Learning

Value learning is the AI-safety approach of having a system infer what humans actually value, rather than optimizing a hand-coded proxy, so that capable agents pursue goals aligned with human intent even in novel situations.

intermediate2 min read

TensorFlow Extended (TFX): Production ML Pipelines

TFX is an end-to-end platform for building production ML pipelines, like an assembly line for your models. It automates data validation, training, analysis, and serving. The footgun: TFX is not one tool, but a suite of libraries you must learn and connect.

Attention in Vision: Teaching Models Where to Look
easy2 min read

Attention in Vision: Teaching Models Where to Look

Attention teaches a model where to look in an image by dynamically weighting important pixels or features. It's used in object detection to focus on relevant regions. The footgun is assuming it's free; attention adds computational cost and complexity.

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