Feature Engineering

Process of transforming raw data into features that better expose patterns to learning algorithms.

Fine‑Tuning

Adapting a pre‑trained model on task‑specific data, often with smaller learning rates and adapters.

Full Node

Node that fully validates blocks and transactions and stores the complete blockchain state or history.

Frugal Finality

Design goal of achieving rapid, energy‑efficient finality with minimal validator overhead.

Front‑Running

Reordering or inserting transactions to profit from observed pending orders; a core MEV category.

Flashbots

Research and tooling ecosystem around MEV mitigation and private transaction relays for Ethereum.

Flash‑Swap

Mechanism allowing tokens to be withdrawn before payment in AMMs, enabling arbitrage within one transaction.

Flash Loan

Uncollateralized on‑chain loan that must be repaid within a single transaction, else it reverts.