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All articles starting with H

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HHL algorithm

The HHL algorithm, also called the Harrow-Hassidim-Lloyd algorithm, is a 2009 quantum algorithm that solves sparse linear systems exponentially faster than classical methods, outputting a quantum state.

Hi (film)

Hi (Hi :) is a 2026 Tamil romantic comedy-drama, the directorial debut of Vishnu Edavan, starring Kavin as Mayilsamy and Nayanthara as Devayani. Released 28 August 2026, U/A certified, streaming on ZEE5 from 25 September 2026 in four languages.

Hi Bio

HI-Bio (Human Immunology Biosciences, Inc.) was an American clinical-stage biotechnology company founded in 2021 that developed therapies for immune-mediated diseases and was acquired by Biogen in 2024.

Hi Bye, Mama!

Hi Bye, Mama! (하이바이, 마마!) is a 2020 tvN Korean drama, 16 episodes, starring Kim Tae-hee as a mother dead five years who returns for 49 days to reclaim her place with her remarried husband and daughter; directed by Yoo Je-won, written by Kwon Hye-joo, streamed on Netflix.

Hi Hi Puffy AmiYumi (パフィー・アミユミ)

Hi Hi Puffy AmiYumi (ハイ！ハイ！パフィー・アミユミ) is a Cartoon Network animated series (2004–2006, 39 episodes) based on the Japanese pop duo PUFFY, starring cartoon versions of Ami Onuki and Yumi Yoshimura with manager Kaz.

Hï Ibiza

Hï Ibiza is a nightclub in Playa d'en Bossa, Ibiza, opened in 2017 on the former Space Ibiza site and run by Yann Pissenem's The Night League.

Hi Infidelity

Hi Infidelity is REO Speedwagon's ninth studio album (Epic, November 21, 1980), a Diamond-certified No. 1 Billboard album featuring "Keep On Loving You" and "Take It on the Run," the band's commercial breakthrough.

HI intensity mapping

HI intensity mapping is a radio astronomy technique that maps the large-scale distribution of matter by measuring integrated redshifted 21-cm emission from neutral hydrogen, without resolving individual galaxies.

Hi Nanna

Hi Nanna (హాయ్ నాన్న, "Hi Dad"), also known as Nani 30, is a 2023 Telugu romantic family drama directed by debutant Shouryuv, starring Nani, Mrunal Thakur, and Kiara Khanna, released 7 December 2023 and streaming on Netflix.

Hi Score Girl (ハイスコアガール)

Hi Score Girl (ハイスコアガール) is Rensuke Oshikiri's Square Enix manga (2010-2018, 10 volumes) about 1990s arcade gaming, suspended by an SNK Playmore copyright suit (2014-2015) and adapted into a Netflix anime by J.C. Staff.

Hi Umi Village

Hi Umi Village (嗨海莊園聚落) was a reservation-only seaside tent-picnic park in Mituo District, Kaohsiung, Taiwan, with seven wooden tents, moai decor, and sea views; it opened 15 August 2020 and closed in June 2021.

Hi-5 (Australian TV series)

Hi-5 is an Australian preschool educational TV series created by Helena Harris and Posie Graeme-Evans, premiering on the Nine Network in April 1999. Five presenters teach through song, dance, and themed segments; it spawned US, Latin American, Philippine, and Indonesian versions and Hi-5 House.

Hi-C

Hi-C is a Coca-Cola-owned American non-carbonated fruit juice drink brand, first marketed 1948 and the first vitamin C-fortified fruit drink; known for juice boxes and McDonald's Orange Lavaburst, removed 2017, returned 2021.

Hi-C (rapper, born 1973)

Hi-C (Crawford Wilkerson, born 1973), also Crawf Dog, is a Louisiana-born, Compton-raised West Coast rapper known for Skanless (1991), the single I'm Not Your Puppet, DJ Quik collaborations, and CB4; distinct from the younger Hi-C born 1998.

Hi-Chew (ハイチュウ)

Hi-Chew (ハイチュウ, HI-CHEW) is Morinaga Seika's soft gelatin-based fruit chew, launched 1975 from 1913 Milk Caramel technology, sold in 30+ countries, 233 Japanese flavors, US production since 2013.

Hi-de-Hi!

Hi-de-Hi! is a British BBC sitcom by Jimmy Perry and David Croft (1980–1988), set at the fictional Maplins holiday camp in Crimpton-on-Sea in 1959–60, starring Paul Shane, Ruth Madoc and Su Pollard, inspired by Perry's Butlin's Redcoat years and winning the 1984 BAFTA for Best Comedy Series.

Hi-Fi

Hi-Fi (Хай-Фай) is a Russian pop group formed in 1998 by producer Erik Chanturia and composer Pavel Esenin, best known for the hits «Не дано» and «Глупые люди».

Hi-Fi murders

Hi-Fi murders: April 22, 1974 torture-murders during a robbery at the Hi-Fi Shop, Ogden, Utah; airmen Dale Pierre Selby and William Andrews executed (1987, 1992) after Utah's longest death-row appeals; Keith Roberts convicted of robbery only.

Hi-Fi Rush

Hi-Fi Rush is a rhythm action game by Tango Gameworks, shadow-dropped January 25, 2023 on Xbox Series X|S and PC. Protagonist Chai battles Vandelay Technologies, timing attacks to a rock soundtrack; Metacritic 87; studio later acquired by Krafton in 2024.

Hi-Fi Set

Hi-Fi Set (ハイ・ファイ・セット) was a Japanese vocal trio formed in 1974 by former Akai Tori members, known for three-part harmony and the 1976 hit "Feeling".

Hi-Fi Un!corn (ハイファイユニコーン)

Hi-Fi Un!corn is a five-member Korean-Japanese boy band under FNC Entertainment, formed through the Japan-Korea audition show THE IDOL BAND: BOY'S BATTLE and debuted in 2023.

Hi-Five

Hi-Five is an American R&B quintet from Waco, Texas, formed in 1989 and known for the 1991 number one hit "I Like the Way (The Kissing Game)."

Hi-Five (하이파이브) (2025 film)

Hi-Five (하이파이브) is a 2025 South Korean comic action film written and directed by Kang Hyoung-chul, in which five strangers who receive organs from one donor gain superpowers and fight a cult leader.

Hi-hat

Hi-hat (also hihat, high-hat): a pair of cymbals on a foot-pedal stand central to drum kits, producing closed "chick" and open "wash" sounds. Invented around 1930 from low boy and snowshoe pedal predecessors.

Hi-NRG

Hi-NRG (also HINRG, Electro Boogie): fast electronic disco subgenre from the late 1970s–early 1980s UK and US gay club scenes, 120–140 BPM, octave basslines, drum machines; precursor to house, techno, Eurobeat, and Stock Aitken Waterman pop.

Hi-Rez Studios

Hi-Rez Studios: independent game developer and publisher founded 2005 by Erez Goren and Todd Harris in Alpharetta, Georgia; maker of Smite, Paladins, Rogue Company, and Smite 2 (Unreal Engine 5), restructured as Hi-Rez Ventures with repeated layoffs since 2023.

Hi-Standard

Hi-Standard (ハイスタンダード) is a Japanese punk rock and melodic hardcore band formed in Tokyo in 1991, known for English-language lyrics and its self-run AIR JAM festival.

Hi, How Are You

Hi, How Are You (The Unfinished Album) is Daniel Johnston's 1983 self-released lo-fi cassette, recorded in San Marcos, Texas, with the Jeremiah the Innocent frog cover Kurt Cobain wore in 1992.

Hi, Mom (你好，李焕英) (2021 film)

Hi, Mom (你好，李焕英), also known as Hi, Mom 2021, is a Chinese comedy-drama directed by and starring Jia Ling, adapted from her 2016 sketch; it grossed 5.413 billion yuan, about US$822 million worldwide, making her China's top-grossing female director, with Sony acquiring English remake rights in 2023.

Hi! School: Love On

Hi! School: Love On (하이스쿨 - 러브온) is a 2014 KBS2 Korean fantasy romance drama, 20 episodes, starring Kim Sae-ron as an angel turned human, with Nam Woo-hyun and Lee Sung-yeol of Infinite.