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St. Thomas Cathedral Basilica, Chennai
St. Thomas Cathedral Basilica, commonly called San Thome Basilica, is a Roman Catholic cathedral in the Santhome neighborhood of Chennai, India, built over the traditional tomb of the Apostle Thomas.
St. Thomas Church, Leipzig
St. Thomas Church (Thomaskirche) is a Lutheran church in Leipzig, Germany, where Johann Sebastian Bach worked as Thomaskantor from 1723 until his death in 1750.
St. Vitus Cathedral
St. Vitus Cathedral, also known as Katedrála svatého Víta, is the largest church in the Czech Republic, standing within Prague Castle as the coronation and burial site of Czech kings.
St1
St1 is a Finnish energy company, founded in 1997, operating across Finland, Sweden, Norway, and the United Kingdom in oil products, biogas, sustainable aviation fuel, and renewable diesel.
Staatliches Hofbräuhaus in München
Staatliches Hofbräuhaus in München, or Hofbräu München, is a brewery in Munich owned by the Bavarian state, founded in 1589 and opened to the public in 1828.
Stability AI
Stability AI is a London-founded artificial intelligence company, established in 2019 by Emad Mostaque and best known for releasing the Stable Diffusion image-generation model in 2022.
Stability AI leadership crisis of 2024
The Stability AI leadership crisis of 2024 was the financial strain and investor pressure that ended with founder Emad Mostaque resigning as CEO in March 2024.
Stability AI rescue and restructuring
The Stability AI rescue and restructuring was a June 2024 bailout led by Sean Parker that installed Prem Akkaraju as CEO and forgave about $100 million of debt.
Stability lobe diagram
A stability lobe diagram is a machining chart whose lobed curves separate chatter-free cutting from unstable chatter by spindle speed and depth of cut, guiding machinists to speeds that maximize material removal.
Stability of the Lagrange points
The stability of the Lagrange points: triangular points L4 and L5 are stable below Routh's mass-ratio threshold, while collinear L1, L2, and L3 are always unstable.
Stabilizer (aeronautics)
A stabilizer in aeronautics is a fixed tail surface of a fixed-wing aircraft: the horizontal stabilizer gives pitch stability, and the vertical fin gives yaw stability.
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 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 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 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.
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.
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.
Stack (abstract data type)
A stack, also called a push-down store, is an abstract data type where only the most recently added item may be removed, following last-in, first-out order.
Stack algorithm (sequential detection)
The stack algorithm, also called the Zigangirov–Jelinek (ZJ) algorithm, is a sequential decoding method that keeps explored paths in a metric-sorted stack; it was introduced by Zigangirov in 1966 and independently by Jelinek in 1969.
Stack effect
Stack effect, also known as chimney effect or natural draught, is the movement of air through buildings driven by temperature-based density differences between indoor and outdoor air.
Stack Exchange
Stack Exchange is a network of question-and-answer websites, started in 2008, where users ask questions, answer them, and earn reputation and badges; its largest site is Stack Overflow.
Stack overflow
A stack overflow is a runtime fault where a program's call stack exceeds its allocated memory, typically crashing the program, most often caused by unbounded recursion.
Stack Overflow
Stack Overflow, the largest site in the Stack Exchange network, is a programming question-and-answer website launched in 2008 and acquired by Prosus in 2021 for about $1.8 billion.
Stack trace
A stack trace, also called a backtrace or traceback, is a report of the active function-call chain in a program, showing function names, source files, and line numbers.
Stack ventilation
Stack ventilation, sometimes called buoyancy ventilation or the stack effect, is a passive ventilation method in which rising warm air pulls fresh outdoor air in through low-level openings.