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Average Value Notation (yˉ\bar{y})

In mathematical notation, a bar placed over a variable, such as yˉ\bar{y}, typically represents the average or mean value of that variable. This notation can be applied to scalars or vectors. For instance, yˉ\bar{\mathbf{y}} denotes a mean vector, where the bold font indicates it is a vector. A subscript, as in yˉk\bar{\mathbf{y}}_k, is used to index a specific average value or vector within a set or sequence.

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Updated 2025-10-07

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Ch.4 Alignment - Foundations of Large Language Models

Foundations of Large Language Models

Foundations of Large Language Models Course

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