All articles starting with S
44,216 articles
Stable Audio
Stable Audio is a family of text-to-music and text-to-audio generative models from Stability AI, first released in September 2023 and named a TIME Best Invention of 2023.
Stable belt
Stable belt: a wide, regimentally coloured cloth belt worn with British and Commonwealth barrack or working dress. Originated with Victorian cavalry stable work from the surcingle; striped in regimental tie colours, twin-strap buckle, largely private purchase.
Stable Block (30 Yards South of Wherwell Priory)
Grade I listed mid-13th-century abbey building, probably Wherwell Abbey's refectory, in Wherwell, Hampshire; list entry 1093391, first listed 1984, likely built under Abbess Euphemia.
Stable Cascade
Stable Cascade is a text-to-image diffusion model released by Stability AI in research preview in 2024, built on the Würstchen architecture and organized as three models.
Stable Diffusion
Stable Diffusion is a family of open-weight text-to-image diffusion models developed by Stability AI, first publicly released in August 2022 and since expanded through versions 1.5, 2.x, XL, and 3.5.
Stable Diffusion 1.5
Stable Diffusion 1.5 is an open-weight text-to-image diffusion model released in October 2022, small enough to run on consumer GPUs and the foundation of the open fine-tuning ecosystem.
Stable Diffusion 3
Stable Diffusion 3 is a family of text-to-image models released by Stability AI in 2024, using a Multimodal Diffusion Transformer architecture that replaced the U-Net of earlier versions.
Stable Diffusion XL
Stable Diffusion XL (SDXL) is an open-weight, diffusion-based text-to-image model released by Stability AI on July 26, 2023, with a 2.6-billion-parameter UNet and native 1024×1024 generation.
Stable distribution
The stable distribution, or Lévy alpha-stable distribution, is a probability distribution whose shape is preserved under addition; it includes the normal, Cauchy, and Lévy distributions as closed-form cases.
Stable group
A stable group is a group definable in a model of a stable first-order theory; examples include abelian groups, algebraic groups over algebraically closed fields, and free groups.
Stable isotope analysis
Stable isotope analysis (SIA) measures heavy-to-light isotope ratios of elements such as carbon, nitrogen, and hydrogen to trace where materials come from and how energy moves through ecosystems.
Stable isotope labeling
Stable isotope labeling incorporates non-radioactive heavy isotopes such as ²H, ¹³C, and ¹⁵N into biomolecules, cells, or organisms to trace metabolic pathways and fluxes by mass spectrometry or NMR.
Stable isotope labeling by amino acids in cell culture
Stable isotope labeling by amino acids in cell culture (SILAC) is a metabolic labeling method for quantitative proteomics, reported by Shao-En Ong and colleagues in 2002.
Stable Lévy process
Stable Lévy process is a continuous-time Lévy process characterized by $\alpha$-stable increments for $0 < \alpha \leq 2$. It generalizes Brownian motion and exhibits power-law-tailed increments.
Stable manifold theorem
The stable manifold theorem, also known as the Hadamard–Perron theorem, states that orbits near a hyperbolic equilibrium that approach it form a smooth manifold tangent to the stable eigenspace.
Stable matching problem
The stable matching problem, also called the stable marriage problem, asks how to pair two sets of participants so no two would both prefer each other over their assigned partners.
Stable matrix
A stable matrix, also called a Hurwitz matrix, is a square matrix whose eigenvalues all have strictly negative real parts, meaning a continuous linear system governed by it decays to zero.
Stable rank
Stable rank, or topological stable rank, is a numerical invariant of a C-algebra, introduced by Marc Rieffel in 1983 as the first noncommutative generalization of covering dimension.
Stable Ronaldo
Stable Ronaldo (Rani Netz, born 2003) is an American Twitch streamer and former Fortnite pro; 2019 FNCS champion, viral 'Payphone' clip, FaZe Clan member 2022-2025, CORE co-founder 2026.
Stable Signature
Stable Signature is a watermarking method introduced at ICCV 2023 by Inria and Meta FAIR researchers that embeds an invisible signature in a diffusion model's decoder.
Stable theory
A stable theory is a complete first-order theory that forbids the combinatorial pattern called the order property, a tameness condition central to Shelah's classification program in model theory.
Stable Video Diffusion
Stable Video Diffusion is an open-weights image-to-video model released by Stability AI in November 2023, which animates a still image into short clips up to about four seconds.
Stable-Baselines3
Stable-Baselines3 (SB3) is an open-source Python library providing reliable implementations of deep reinforcement learning algorithms such as PPO, SAC, and DQN, built on PyTorch and published in 2021.
Stable-isotope probing
Stable-isotope probing (SIP) is a microbial ecology technique that identifies which organisms in a community metabolize a labeled substrate by tracking isotope incorporation into DNA, RNA, or proteins.
Stablecoin
A stablecoin is a cryptocurrency token designed to maintain a stable value, often pegged to one US dollar, backed by fiat money, crypto, commodities, or algorithms.
Stableford
Stableford, a golf scoring format invented by Dr Frank Barney Gorton Stableford (1898, Wales; popularized at Wallasey 1932), awards points per hole against net par: bogey 1, par 2, birdie 3, eagle 4; highest total wins, bad holes score zero.
StableLM (model family)
StableLM is a family of open-weight large language models released by Stability AI beginning in April 2023, progressing from 3B and 7B Alpha models to the Stable LM 2 series in 2024 before going dormant.
Stabling
Stabling: keeping livestock in stables, barns, byres, stalls, or pens, permanently or seasonally, instead of or alongside pasture. Covers its history from antiquity, housing types for cattle, horses, and pigs, and welfare and environmental management.
Stabroek block
The Stabroek block is a 26,806 km² deepwater petroleum concession off Guyana operated by ExxonMobil, holding an estimated 11 billion barrels and producing since December 2019.
Stacey (singer)
Stacey, born Lindtsey Stacey Aubrey Sevilleja in 2003, is a Filipino singer and rapper who joined BINI, the P-pop girl group that performed at Coachella in 2026.