Common AI Terms Beginning with K | Flux+Form AI Dictionary -

Kalman Filter

An algorithm that estimates the state of a system from noisy observations, used in tracking and forecasting.

Kernel Method

A class of algorithms that implicitly map data into high‑dimensional spaces to perform linear classification or regression.

Kernel Trick

A mathematical technique that allows algorithms to operate in high‑dimensional spaces without explicit computation.

K‑Fold Cross Validation

A method for evaluating model performance by splitting the data into k parts and training/testing k times.

K‑Means Clustering

An algorithm that partitions data into k clusters by minimizing the distance between points and cluster centroids.

K‑Nearest Neighbors

A simple, instance‑based algorithm that classifies new points based on the majority class of their nearest neighbours.

Key Performance Indicator or KPI

A quantifiable measure used to evaluate the success of an organization or activity, such as cost per acquisition or return on ad spend.

Knowledge Base

A centralized repository of structured information used to support reasoning, answering questions and training models.

Knowledge Distillation

Transferring knowledge from a large model to a smaller model by training the smaller model to replicate the larger model’s outputs.

Knowledge Graph

A graph‑based representation of entities and their relationships, enabling structured reasoning and improved recommendations.

Kullback–Leibler Divergence

A measure of how one probability distribution diverges from another, often used to measure model performance.

KV Cache Quantization

A memory-saving technique that stores an AI’s running attention cache at lower precision, enabling longer conversations and faster responses for a small accuracy tradeoff.

The Ad Agency AI Dictionary