---
title: "Negative log-likelihood mathematical notation"
description: "Negative log-likelihood is a recurring research-paper notation family. Turns a model probability into a minimization loss that grows sharply when the…"
canonical_url: "https://fanout.sh/labs/math-decoder/symbol/negative-log-likelihood"
md_url: "https://fanout.sh/labs/math-decoder/symbol/negative-log-likelihood.md"
last_updated: "2026-08-09"
access: "public"
---

# Negative log-likelihood mathematical notation

Negative log-likelihood is a recurring research-paper notation family. Turns a model probability into a minimization loss that grows sharply when the…

## Public overview

Negative log-likelihood is a recurring research-paper notation family. Turns a model probability into a minimization loss that grows sharply when the model assigns little probability to observed data.

Negative log-likelihood: Turns a model probability into a minimization loss that grows sharply when the model assigns little probability to observed data. Example: Penalize the model for assigning low probability to observed outcomes.

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