---
title: "Glossary"
description: "I coined Machine Relations in 2024. The other terms here are ones I use in the essays, with the research page that keeps the maintained definition."
canonical: "https://jaxonparrott.com/glossary"
---

# Glossary

I coined Machine Relations in 2024. The other terms here are ones I use in the essays, with the research page that keeps the maintained definition.

## Machine Relations

Machine Relations (MR) is the discipline of earning AI citations and recommendations for a brand by making that brand legible, retrievable, and credible inside AI-driven discovery. I coined it in 2024.

[Essay](https://jaxonparrott.com/blog/why-i-coined-machine-relations) · [Machine Relations glossary](https://machinerelations.ai/glossary/machine-relations)

## Share of citation

Share of citation is whether credible sources about a brand are among the sources an answer cites when a buyer asks about the category. It is the measure I use in place of share of voice.

[Essay](https://jaxonparrott.com/blog/why-i-measure-share-of-citation) · [Share of citation on Machine Relations](https://machinerelations.ai/glossary/share-of-citation)

## Sentiment delta

Sentiment delta is the gap between how a company describes itself and how an AI answer describes it. I read it across the question, the retrieved sources, the public record, and the generated answer, not as one score.

[Essay](https://jaxonparrott.com/blog/sentiment-delta-four-layers-ai-search-brand-2026) · [What is sentiment delta](https://machinerelations.ai/research/what-is-sentiment-delta-brand-ai-search)

[Machine Relations](https://jaxonparrott.com/machine-relations) · [Press](https://jaxonparrott.com/press)