The Ad Agency AI Dictionary

Common AI terms beginning with P, defined for advertising professionals.

P

Find the Flux+Form AI glossary & dictionary to help you make sense of common AI terms. Below you can find an AI Glossary & Dictionary for “P”.

19 Terms in section P Updated May 2026

Padding

Adding extra pixels or values around data, particularly images, to preserve dimensions during convolution operations.

Parameter

A variable internal to a model whose value is learned during training.

Partial Derivative

The derivative of a multivariable function with respect to one variable while holding others constant; used in gradient computation.

Perceptron

A simple type of neural network that makes binary classifications based on a weighted sum of inputs.

Performance Metric

A measure such as accuracy, AUC or ROAS used to evaluate how well a model or campaign performs.

Personalization

Customizing content, products or experiences to individual users using AI‑driven insights.

Pipeline

A series of data processing steps that transform raw data into features, feed it into a model and output predictions.

Policy

In reinforcement learning, a strategy that specifies the action a model should take in each state.

Pool

In convolutional networks, the operation that down‑samples feature maps by summarizing nearby values.

Position Embedding

Adding positional information to token embeddings so that models can understand order in sequences.

Predictive Analytics

Using statistical techniques and machine learning to forecast future outcomes such as purchase intent or churn.

Pre‑Processing

Preparing data before modelling, including cleaning, scaling and encoding.

Pre‑Training

Initializing a model by training it on a large general dataset before fine‑tuning on a specific task.

Probabilistic Model

A model that incorporates randomness and uncertainty into its predictions, providing distributions rather than point estimates.

Programmatic Advertising

Automated buying and selling of digital advertising inventory in real time via software platforms.

Prompt Engineering

Crafting prompts to elicit desired outputs from generative models; small changes can significantly influence responses.

Propensity Modeling

Predicting the likelihood of a particular customer action, such as buying a product, using historical data and machine learning.

Pruning

Reducing the size of neural networks by removing unimportant weights or connections to improve efficiency.

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