Glossary Terms

Agentic AI

AI systems that can plan and take a sequence of actions towards a defined goal, within assigned permissions and controls. Business use requires clear limits, monitoring, escalation routes and human accountability.

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Algorithms

Defined procedures used to process information or solve a problem. An algorithm’s usefulness depends on its purpose, inputs and assumptions; the existence of an algorithm does not establish that its output is reliable.

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Analytics

The systematic examination of data to understand performance, patterns or possible causes. Use analytics to support a specific business question, checking data quality and separating evidence from assumptions.

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Anomaly Detection

Methods for identifying observations that differ from an expected pattern. An unusual result is a signal to investigate, rather than automatic proof of an error, fraud or a business opportunity.

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Attention Mechanism

A machine learning mechanism that weights relationships between elements of an input when producing an output. Attention can improve information processing, but its weights do not by themselves explain a model’s reasoning.

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Autoencoder

A neural network trained to reconstruct its input through a compressed internal representation. It can support tasks such as feature learning or anomaly detection, with performance assessed against the intended application.

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Backpropagation

A method for calculating how a neural network’s parameters contribute to its error during training. Those gradients are used by an optimisation method to adjust parameters; useful training still depends on data and evaluation.

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Bag of Words

A text representation based on the presence or frequency of words, usually without preserving their order. It can support simple classification or retrieval tasks but loses much of the text’s context.

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Batch Size

The number of training examples processed together before an update to a model’s parameters. The choice affects memory use and training behaviour and should be tested for the specific model and environment.

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