Concepts

Plain-language explanations of the ideas behind modern AI.

355 entries, all primary-sourced
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Kubeflow

Kubeflow is an open-source toolkit for running the machine-learning lifecycle on Kubernetes, originating from how Google ran TensorFlow internally.

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LangGraph

LangChain's graph-based runtime for building stateful, long-running agents as nodes and edges with persistence and human-in-the-loop control.

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Large Language Model

An AI system trained on vast text to predict and generate language, able to perform many tasks from a single model.

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Learning to Rank

Training a model to order a list of results by relevance, the core machine learning task behind search.

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Liar's dividend

The advantage liars gain when the existence of deepfakes lets them dismiss real, incriminating evidence as fake.

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Lidar for self-driving

Lidar maps a car's surroundings in 3D with laser pulses; it is central to most robotaxi designs and the focus of the camera-versus-lidar debate.

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Linear Attention

A family of attention variants that scale linearly with sequence length instead of quadratically, easing long-context cost.

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Long Short-Term Memory (LSTM)

A recurrent neural network design that remembers information over long sequences, enabling early advances in speech and language processing.

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Longtermism

The ethical view that positively shaping the very long-term future is a key moral priority, often invoked to justify work on AI risk.

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LoRA (Low-Rank Adaptation)

A parameter-efficient fine-tuning method that customizes a large model by training a tiny set of added weights, cutting cost and storage by orders of magnitude.

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Loss Function

A formula that scores how wrong a model's predictions are, giving training a single number to minimize.

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Machine Learning

A field where computer programs improve at a task by learning patterns from data and experience rather than being explicitly programmed.

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Machine Unlearning

Methods for making a trained model forget specific data, so that deleting a record also removes its influence on the model.

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Machine-learning interatomic potentials

Neural networks trained to predict the energy and forces between atoms at near-quantum accuracy but orders of magnitude faster than quantum simulation.

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Markov Chain Monte Carlo

A family of methods that draw samples from complex probability distributions by simulating a cleverly designed random walk.

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Markov Decision Process

The mathematical frame for sequential decision-making under uncertainty, defining the states, actions, and rewards reinforcement learning builds on.

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Meaningful Human Control

The idea that a human must retain enough understanding and authority over a weapon to be morally and legally accountable for its use of force.

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Mechanistic Interpretability

The effort to reverse-engineer the specific algorithms and circuits neural networks learn, reading their internals like code.

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Meta-Learning

Meta-learning, or learning to learn, trains a system so it can pick up new tasks quickly from very little data.

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Microsoft FarmBeats

FarmBeats is a Microsoft Research platform that fuses drone imagery with ground sensors over rural connectivity to build AI maps of farm conditions.

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Mixture of Experts (MoE)

An architecture that routes each input to a few specialized sub-networks, growing total capacity without growing per-query cost.

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ML Observability

Monitoring deployed models in production to detect drift, data quality issues, and performance decay before they harm the business.

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Model Cards

Short standardized documents that ship with a trained model to report its intended uses, performance across groups, and known limitations.

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Model Context Protocol (MCP)

An open standard from Anthropic for connecting AI applications to external data sources, tools, and workflows in a uniform way.

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Model Distillation

Training a smaller, cheaper model to mimic a larger one, transferring much of its capability at a fraction of the cost.

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Model Registry

A central store that versions trained models, tracks their lineage, and manages their promotion from staging to production.

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Multi-Agent Systems

The study of systems where many autonomous agents interact, the academic field that grounds today's LLM agent orchestration.

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Multi-Armed Bandit

The multi-armed bandit is the simplest reinforcement learning problem: balance exploring unknown options against exploiting the best known one.

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Multi-Head Attention

Running several attention computations in parallel so a model can attend to different kinds of relationships at once - a key piece of the Transformer.

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Multimodality

AI systems that work across more than one type of data - for example understanding images and text together rather than text alone.

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Mutual Information

A measure of how much knowing one variable reduces uncertainty about another, defining the capacity of a communication channel.

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Natural Language Processing

The field of getting computers to work with human language, which evolved from hand-written rules to statistics to neural networks to large language models.

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Neural Architecture Search

Automatically designing the structure of a neural network by searching over possible architectures instead of hand-crafting them.

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Neural Network

A computing model built from layers of simple interconnected units that adjust their connections to learn patterns from data.

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Neural operator

A class of neural networks that learn mappings between whole functions, letting one model solve a family of differential equations at any resolution.

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NeuroAI

The research field at the intersection of neuroscience and AI, using each to inform the other in a two-way exchange of ideas.

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Neuromorphic Computing

Hardware that copies the brain's style of computation - event-driven spikes and memory next to processing - to run neural workloads at very low power.

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Noisy-Channel Coding Theorem

Shannon's result that reliable communication is possible up to a fixed rate, the channel capacity, even over a noisy channel.

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Nonmonotonic Reasoning

Reasoning where adding new facts can cancel earlier conclusions, the formal basis for default assumptions and common-sense inference in symbolic AI.

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Normalizing Flows

A family of generative models built from invertible transformations, letting them compute exact data likelihoods.

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Nucleus Sampling (Top-p)

A decoding method that samples the next token from the smallest set whose probabilities add up to p, keeping text varied without choosing unlikely words.

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NVIDIA TensorRT

TensorRT is NVIDIA's deep-learning inference optimizer that speeds up trained models on GPUs through quantization, layer fusion, and kernel tuning.

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NVIDIA Triton Inference Server

Triton is NVIDIA's open-source server for deploying trained models from any framework, with dynamic batching and concurrent execution for production inference.

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NVLink

NVIDIA's high-speed interconnect that lets GPUs share data far faster than PCIe, the glue of multi-GPU AI systems.