AI Glossary: 3,885 terms, defined

Plain-language definitions of the vocabulary used across machine learning, model architectures, tooling and AI safety. Every entry opens with a one-sentence definition, then explains where the term is used.

294 terms

Computer Vision

Compression Artifact

Compression artifact is the visual distortion or degradation that occurs when digital images or videos are compressed to reduce file size.

Generative AI

Computational Creativity

Computational creativity is the use of computer algorithms and artificial intelligence to simulate or enhance human creative processes in art, music, writing, and problem-solving.

AI Fundamentals

Computational Intelligence

Computational Intelligence is a branch of artificial intelligence that involves using nature-inspired algorithms to solve complex real-world problems.

Other

Computational Thinking

Computational thinking is a problem-solving approach that involves breaking down complex problems into manageable parts and designing step-by-step solutions using concepts from computer science.

Computer Vision

Computer Vision

Computer vision is a field of artificial intelligence that enables machines to interpret, analyze, and understand visual information from images and videos.

Other

Computer Vision API

Computer Vision API is a cloud-based service that enables applications to analyze and interpret visual content such as images and videos using artificial intelligence.

Machine Learning

Concept Drift

Concept drift is the phenomenon where the statistical properties of a target variable change over time in unforeseen ways.

Other

Concept Extraction

Concept Extraction is the process of identifying and retrieving key ideas or topics from unstructured text data.

Machine Learning

Conditional Random Field

A Conditional Random Field (CRF) is a statistical modeling method used for structured prediction in machine learning, particularly for sequences and labeling tasks.

Machine Learning

Confidence Interval

A confidence interval is a range of values used to estimate the true value of a population parameter, expressed with a certain level of confidence.

Other

Confidence Score

Confidence Score is a numerical value that indicates the level of certainty or reliability in a specific data point, prediction, or decision.

MLOps & Infrastructure

Confidential Computing

Confidential Computing is a technology that protects data in use by performing computation within a secure, isolated environment called a trusted execution environment (TEE).

Deep Learning & Neural Networks

Conformer

A Conformer is a type of neural network architecture designed to efficiently process sequential data, combining convolutional and transformer layers.

Machine Learning

Confounding Variable

A confounding variable is an external influence in a study or experiment that can distort the results and suggest a false association between the studied variables.

Machine Learning

Confusion Matrix

A Confusion Matrix is a table used to evaluate the performance of a classification algorithm by summarizing correct and incorrect predictions.

AI Fundamentals

Connectionism

Connectionism is a theoretical framework for understanding cognitive processes through the use of artificial neural networks.

Generative AI

Constitutional AI

Constitutional AI is a framework for aligning artificial intelligence systems with ethical principles and societal values through predefined guidelines.

About the TiorAI AI Glossary

The TiorAI AI Glossary is a free reference of 3,885 artificial intelligence terms, each defined in plain English. Every entry opens with a one-sentence definition that stands on its own, then explains where the term is actually used and how it sits next to the ideas around it. There is nothing to sign up for and nothing to download: each definition has its own page and its own URL, so a term you needed once can be linked to and found again.

Three ways to find a term

They combine, and none of them cancels the others. The A to Z strip narrows the index to a single initial, with the # key collecting the entries that begin with a digit or a symbol and that no letter would reach. The category filter cuts the glossary to one of sixteen subject areas, among them Machine Learning, Deep Learning and Neural Networks, Natural Language Processing, Computer Vision, Generative AI, Reinforcement Learning, AI Agents and Systems, MLOps and Infrastructure, Data and Analytics, and AI Ethics. The search field matches names and definitions, so a concept you can only half-name still surfaces. Every combination has its own URL, which means a narrowed view can be bookmarked or sent to a colleague.

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What the definitions cover

The vocabulary of modern AI, at the three depths people arrive needing. The fundamentals a first week runs into — model, parameter, training, inference, overfitting. The architecture behind current systems — transformers, attention, embeddings, diffusion, retrieval-augmented generation. And the operational and governance language that turns up in a procurement review or a policy document — fine-tuning, hallucination, alignment, model drift, bias. Terms are defined as they are used in practice rather than as they appear in a paper abstract.

Definitions that answer first

Each entry leads with the answer. The opening sentence says what the term means without assuming the rest of the page, which is what makes an entry useful to someone who arrived from a search with exactly one question. The explanation underneath is for the reader who wants more than that: what the idea is commonly confused with, what it looks like in practice, and which neighbouring terms are worth reading next. The card in the index above shows the opening of that definition, so you can tell from the results whether an entry is the one you want.

Where the glossary fits

A glossary answers what something means; it is not the place that tells you what to do about it. Where a concept has products behind it, the AI tools directory is where they are listed, and where it has a working instruction behind it, the prompt library is where that lives. Entries link out to those when the link earns its place, and the glossary stays what a glossary is — the definitions, ordered so they can be browsed, and written so a single one can be read on its own.

Using this glossary

How is the glossary ordered?

Alphabetically by term name, which is the order a reference work is browsed in and the order every page of this archive has always used. The sort menu can switch it to reverse alphabetical, or to recently added and recently updated if you want to see what has changed.

What does the letter strip do?

It narrows the index to terms whose name begins with that character, and it keeps whatever else you have set — a category filter, a search, a sort — so you can move between letters without starting again. The # entry collects the terms that begin with a digit or a symbol, which no letter would reach.

Why do some terms have no specific category?

Entries that span several areas, or that predate the current category set, sit under “Other”. It holds a large share of the glossary, so the filter is most useful for narrowing to a named topic rather than for excluding one.

What is in a glossary entry?

A short definition in plain language, then a longer explanation of where the term is used and how it relates to neighbouring concepts. The card above shows the opening of that definition; the entry itself also links to related terms and, where relevant, to the AI tools that implement the idea.

How do I search the glossary?

The field at the top matches term names and definitions, so a concept you can only half-name will usually surface. Search combines with the category filter and the letter strip, and every combination has its own URL, so a narrowed view can be bookmarked or shared.