F

F1 Score

The harmonic mean of precision and recall, providing a single score that balances both metrics.

ai

Facial Recognition

A biometric technology capable of identifying or verifying a person from a digital image or a video frame by comparing facial features.

ai

Factory Pattern

A creational design pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.

dev

Fact Table

The central table in a star schema of a data warehouse that stores quantitative information for analysis.

ai

Faking

A test double that has a working implementation but takes a shortcut that makes it unsuitable for production.

dev

Farcaster

A decentralized social network protocol designed to be sufficiently decentralized, allowing users to control their identity and data.

web

Fastify

A highly efficient and low-overhead web framework for Node.js, focused on providing the best developer experience with the least overhead.

web

Faucet

A service that dispenses small amounts of free cryptocurrency, typically for use on a testnet.

web

Fault Tolerance

The property that enables a system to continue operating properly in the event of the failure of one or more of its components.

dev

Feature Engineering

The process of using domain knowledge to extract or create new features from raw data that help machine learning algorithms perform better.

ai

Feature Extraction

The process of transforming raw data into a set of features that can be processed while still accurately and completely describing the original data set.

ai

Feature Flags

A software development technique that allows developers to turn features on or off at runtime without deploying new code.

dev

Feature Scaling

A method used to normalize the range of independent variables or features of data.

ai

Feature Selection

The process of selecting a subset of relevant features (variables, predictors) for use in model construction.

ai

Feature Store

A centralized repository that stores and manages processed features for machine learning, ensuring consistency between training and inference.

ai

Federated Learning

A machine learning technique that trains an algorithm across multiple decentralized devices or servers holding local data samples, without exchanging them.

ai

Fediverse

An ensemble of federated servers that are used for web publishing and file hosting, but which can communicate with each other as a single social network.

web

Fetch API

A modern interface for fetching resources (including across the network) in a more powerful and flexible way than XMLHttpRequest.

web

Few-shot Learning(FSL)

A machine learning task where the model is trained to recognize new classes using only a very small number of examples (typically 2-5).

ai

Fiber Optics

A technology that uses glass or plastic threads (fibers) to transmit data as pulses of light.

network

FIDO2(FIDO2)

An open standard for unphishable authentication, developed by the FIDO Alliance.

security

Field-Programmable Gate Array(FPGA)

An integrated circuit designed to be configured by a customer or a designer after manufacturing.

hardware

Filecoin(FIL)

A decentralized storage network that turns cloud storage into an algorithmic market, allowing users to rent out their spare storage space.

web

Fine-tuning

The process of taking a pre-trained model and further training it on a smaller, specific dataset to adapt it for a particular task or domain.

ai

FinFET

A type of non-planar, 3D transistor used in modern integrated circuits to reduce leakage and improve performance.

hardware

FinOps

A cloud financial management discipline that enables organizations to get maximum business value from cloud spending.

cloud

Firewall

A network security system that monitors and controls incoming and outgoing network traffic.

security

FireWire

A high-speed serial bus interface for personal computers and digital audio/video, also known as IEEE 1394.

hardware

Firmware Security

The practice of protecting the low-level software that controls a device's hardware from unauthorized access and modification.

security

First Contentful Paint(FCP)

A metric that measures the time from when the page starts loading to when any part of the page's content is rendered on the screen.

web

First Input Delay(FID)

A Core Web Vital that measures the time from when a user first interacts with a page to the time when the browser is actually able to begin processing event handlers in response to that interaction.

web

First Meaningful Paint(FMP)

A performance metric that measures when the primary content of a page is visible to the user.

web

Flannel

A simple and easy-to-configure L3 network fabric designed for Kubernetes.

cloud

Flash Loan

A type of uncollateralized loan in DeFi that must be borrowed and repaid within the same transaction.

web

Flexbox

A one-dimensional layout method for arranging items in rows or columns, providing high flexibility for distributing space and aligning items.

web

Flow Control

A technique that allows a receiver to control the rate at which a sender transmits data, preventing the receiver from being overwhelmed.

network

FluxCD

A set of continuous and progressive delivery solutions for Kubernetes that are open and extensible.

cloud

Fog Computing

A decentralized computing infrastructure in which data, compute, storage, and applications are distributed in the most logical, efficient place between the data source and the cloud.

network

FOMO(FOMO)

The anxiety that an investor feels when they worry they will miss a profitable opportunity.

web

Forecasting

The process of making predictions of the future based on past and present data and most commonly by analysis of trends.

ai

Form Factor

The physical size, shape, and layout of a hardware component, such as a motherboard or power supply.

hardware

Foundation

A family of responsive frontend frameworks that make it easy to design beautiful responsive websites, apps, and emails.

web

Foundation Model

A large-scale AI model trained on a vast amount of data that can be adapted to a wide range of downstream tasks.

ai

FPU(FPU)

Floating Point Unit; a specialized part of a processor designed to perform calculations on non-integer numbers (floating-point numbers).

hardware

Fragmentation (Networking)

The process of breaking an IP packet into smaller pieces so that they can pass through a link with a smaller MTU.

network

Front-running

The practice of placing a transaction in the queue before a known pending transaction to profit from it.

web

FUD(FUD)

A strategy used to influence perception by spreading negative or misleading information.

web

Full Node

A computer that stores a complete copy of the blockchain and independently verifies every transaction and block according to the network's rules.

web

Functional Programming(FP)

A programming paradigm where programs are constructed by applying and composing functions, avoiding shared state and mutable data.

dev

Fuzzy Logic

A form of many-valued logic in which the truth values of variables may be any real number between 0 and 1, rather than just true or false.

ai