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Cloud seeding in the United Arab Emirates
Cloud seeding in the United Arab Emirates is a national weather-modification program run by the National Centre of Meteorology, which has flown salt-based seeding aircraft since 2002.
Cloud Software Group
Cloud Software Group is a privately held American enterprise software holding company formed in September 2022 through the Citrix take-private by Vista Equity Partners and Evergreen Coast Capital.
Cloud storage
Cloud storage, also called storage as a service or STaaS, is a model of computer data storage in which data is kept on provider-managed servers and reached over a network.
Cloud Village, Inc.
Cloud Village, Inc. is a Cayman Islands holding company, majority owned by NetEase, that operates NetEase Cloud Music (网易云音乐), a leading Chinese online music platform.
CloudBees, Inc.
CloudBees, Inc. is an American software company founded in 2010 selling enterprise continuous integration and delivery tooling built around Jenkins, plus release orchestration and test intelligence products.
CloudCompare
CloudCompare is a free, open-source program for editing, processing, and comparing 3D point clouds and triangular meshes, created in 2003 during Daniel Girardeau-Montaut's PhD research with Télécom ParisTech and EDF.
Cloudera
Cloudera is an American enterprise data software company founded in 2008 as the first commercializer of Apache Hadoop; based in San Jose, California, it went private in 2021.
CloudEvents
CloudEvents is a CNCF-graduated, vendor-neutral specification for describing event data with common attributes (id, source, specversion, type) and bindings (HTTP, Kafka, AMQP, MQTT, NATS), version 1.0 since 2019, graduated January 2024.
Cloudflare
Cloudflare, Inc. is an American cloud-services company founded in 2009, providing content delivery, DDoS mitigation, web application firewalls, and DNS from a global anycast network.
Cloudflare Radar
Cloudflare Radar is a web platform and API that tracks global Internet traffic, attacks, outages, and technology trends using data from Cloudflare's network and 1.1.1.1 DNS resolver.
Cloudflare Workers
Cloudflare Workers is a serverless platform from Cloudflare that runs customer-written JavaScript, TypeScript, and Python code on its global content delivery network, generally available since 2018.
Cloudsky (云天畅想)
Cloudsky (云天畅想) is a Chinese edge AI computing infrastructure company founded in 2020 that deploys GPU compute at edge nodes close to users over 5G networks.
CloudWalk
CloudWalk Technology Co., Ltd. is a Guangzhou-based artificial intelligence company founded in 2015, known for facial recognition software and counted among China's four "AI dragons".
Clough Williams-Ellis
Sir Bertram Clough Williams-Ellis (1883–1978) was a Welsh architect, author, and conservation campaigner known chiefly for creating Portmeirion, the Italianate holiday village in North Wales.
Clover Network
Clover Network is an American payments technology company whose Android-based point-of-sale platform serves about 700,000 businesses. It was acquired by First Data in 2012 and is owned by Fiserv.
Cloverleaf interchange
A cloverleaf interchange is a grade-separated highway interchange in which left turns use loop ramps in all four quadrants, first built in Woodbridge, New Jersey, in 1929.
CLP Group
CLP Group, founded in Hong Kong in 1901 as China Light & Power, is one of Asia-Pacific's largest investor-owned power businesses, operating across Hong Kong, Mainland China, Australia, and India.
Club (weapon)
A club, also called an impact weapon or cudgel, is a short rigid stick wielded as a striking weapon, one of the oldest in human history.
Clubhouse (app)
Clubhouse is an audio-only social media app where users join live voice conversations in rooms as speakers or listeners. It was created by Paul Davison and Rohan Seth in 2020 and reached a $4 billion valuation.
Cluely
Cluely is an American AI startup founded in 2025 by Roy Lee and Neel Shanmugam, offering an on-screen assistant that listens to meetings and takes notes.
Cluster 2 Oil and Gas Field
Cluster 2 is a group of oil and gas fields in the Krishna-Godavari basin off India's east coast, developed by ONGC, which started production in January 2024.
Cluster analysis
Cluster analysis, also known as data clustering, is an unsupervised data mining task that groups unlabeled observations so similar ones share a cluster, using methods such as k-means and DBSCAN.
Cluster II
Cluster II is the European Space Agency's four-spacecraft mission, launched in July and August 2000, that flies in tetrahedral formation through Earth's magnetosphere to study the solar wind.
Cluster munition
A cluster munition, also called a cluster bomb, is a weapon that scatters explosive submunitions over a wide area, many of which fail to detonate and harm civilians for decades.
Cluster picking
Cluster picking is a warehouse fulfillment method where a picker collects items for several customer orders in one trip, sorting each into its own container.
Clustered federated learning
Clustered federated learning is a distributed machine learning approach that groups clients with similar data distributions into clusters and trains a separate model for each cluster instead of one global model.
Clustering Algorithms
Clustering algorithms are computational techniques that group unlabeled data so items in the same cluster are more alike each other than items elsewhere, the main tool of unsupervised learning.
Clustering coefficient
The clustering coefficient is a network science measure of how densely a node's neighbors are connected to each other, computed as the fraction of triangles that exist.
Clutch
A clutch is a mechanical device that connects or disconnects a driving shaft from a driven shaft, as in a car, where it transmits engine power to the gearbox.
Clutch derailleur
A clutch derailleur is a bicycle rear derailleur whose cage pivot carries a friction mechanism, most often a roller clutch, that stabilizes the chain, reducing chain slap and dropped chains on rough ground.