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Duolingo
Duolingo, Inc. is an American educational technology company that produces learning Mobile app, apps and provides Language assessment, language certification. Duolingo offers courses on 43 languages, ranging from English language, English, French language, French, and Spanish language, Spanish to less commonly studied languages such as Welsh language, Welsh, Irish language, Irish, and Navajo language, Navajo, and even constructed languages such as Klingon language, Klingon. It also offers courses on music, mathematics, math, and chess. The learning method incorporates Gamification of learning, gamification to motivate users with points, rewards and interactive lessons featuring spaced repetition. The app promotes short, daily lessons for consistent-phased practice. Duolingo also offers the Duolingo English Test, an online language assessment, and Duolingo ABC, a literacy app designed for children. The company follows a freemium model, with optional premium services like Super D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Duolingo English Test
The Duolingo English Test (DET) is a standardized test of the English language designed to be internet-based rather than paper-based. DET is an Computerized adaptive testing, adaptive test that uses an algorithm to adapt the difficulty of the test to the test-taker. It was developed by Duolingo in 2014 as Test Center and grew in popularity and acceptance at universities during the COVID-19 pandemic. The test is used by around 5,500 university admissions offices, including some programs at Harvard University, Harvard, Stanford University, Stanford, Massachusetts Institute of Technology, MIT, and Yale University, Yale. Republic of Ireland, Ireland accepts the test as part of its student visa program. Some universities in the United Kingdom, such as the London School of Economics, Imperial College London, Kingston University, the University of Southampton, and Middlesex University, also accept the Duolingo English Test. Others, such as Oxford University, Cambridge University and Lan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Severin Hacker
Severin Hacker (born July 6, 1984) is a Swiss-American computer scientist who is the co-founder and CTO of Duolingo, the world's most popular language-learning platform. Biography Hacker was born and raised in Zug and studied at ETH Zurich. In a 2020 interview, Hacker specified that gaming played a large role in his interest in computer science: "What originally drew me to computers was video games and the desire to build your own games and understand how those games are built. I was somewhat obsessed." He moved to Pittsburgh to study at Carnegie Mellon University where he co-founded Duolingo with Luis von Ahn in 2009. He received his BS in computer science from ETH Zurich in 2006 and his Ph.D. in computer science from Carnegie Mellon University Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania, United States. The institution was established in 1900 by Andrew Carnegie as the Carnegie Technical Schools. In 1912, it became the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Luis Von Ahn
Luis von Ahn (; born 19 August 1978) is a Guatemalan-American entrepreneur and software developer. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo. For these projects and others, von Ahn is known as one of the pioneers of crowdsourcing. von Ahn was a professor in the Computer Science Department at Carnegie Mellon University. Early life and education Luis von Ahn was born and raised in Guatemala City. He is of German descent. His mother was one of the first women in Guatemala to complete medical school. She gave birth to von Ahn at age 42, and raised him as a single mother. He attended the American School of Guatemala, a private English-language school in Guatemala City, an experience he cites as a great privilege. When von Ahn was eight years old, his mother bought him a Commodore 64 computer, beginning his fascination with technology and computer science. When he applied to colleges in the United State ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittsburgh, Pennsylvania
Pittsburgh ( ) is a city in Allegheny County, Pennsylvania, United States, and its county seat. It is the List of municipalities in Pennsylvania#Municipalities, second-most populous city in Pennsylvania (after Philadelphia) and the List of United States cities by population, 67th-most populous city in the U.S., with a population of 302,971 as of the 2020 United States census, 2020 census. The city is located in Western Pennsylvania, southwestern Pennsylvania at the confluence of the Allegheny River and Monongahela River, which combine to form the Ohio River. It anchors the Greater Pittsburgh, Pittsburgh metropolitan area, which had a population of 2.457 million residents and is the largest metro area in both the Ohio Valley and Appalachia, the Pennsylvania metropolitan areas, second-largest in Pennsylvania, and the List of metropolitan statistical areas, 26th-largest in the U.S. Pittsburgh is the principal city of the greater Pittsburgh–New Castle–Weirton combined statistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Language
Italian (, , or , ) is a Romance language of the Indo-European language family. It evolved from the colloquial Latin of the Roman Empire. Italian is the least divergent language from Latin, together with Sardinian language, Sardinian. It is spoken by about 68 million people, including 64 million native speakers as of 2024. Italian is an official language in Languages of Italy, Italy, Languages of San Marino, San Marino, Languages of Switzerland, Switzerland (Ticino and the Grisons), and Languages of Vatican City, Vatican City; it has official Minority language, minority status in Minority languages of Croatia, Croatia, Slovene Istria, Romania, Bosnia and Herzegovina, and the municipalities of Santa Teresa, Espírito Santo, Santa Tereza, Encantado, Rio Grande do Sul, Encantado, and Venda Nova do Imigrante in Languages of Brazil#Language co-officialization, Brazil. Italian is also spoken by large Italian diaspora, immigrant and expatriate communities in the Americas and Austral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Language
is the principal language of the Japonic languages, Japonic language family spoken by the Japanese people. It has around 123 million speakers, primarily in Japan, the only country where it is the national language, and within the Japanese diaspora worldwide. The Japonic family also includes the Ryukyuan languages and the variously classified Hachijō language. There have been many Classification of the Japonic languages, attempts to group the Japonic languages with other families such as Ainu languages, Ainu, Austronesian languages, Austronesian, Koreanic languages, Koreanic, and the now discredited Altaic languages, Altaic, but none of these proposals have gained any widespread acceptance. Little is known of the language's prehistory, or when it first appeared in Japan. Chinese documents from the 3rd century AD recorded a few Japanese words, but substantial Old Japanese texts did not appear until the 8th century. From the Heian period (794–1185), extensive waves of Sino-Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hindi
Modern Standard Hindi (, ), commonly referred to as Hindi, is the Standard language, standardised variety of the Hindustani language written in the Devanagari script. It is an official language of India, official language of the Government of India, alongside English language, English, and is the ''lingua franca'' of North India. Hindi is considered a Sanskritisation (linguistics), Sanskritised Register (sociolinguistics), register of Hindustani. Hindustani itself developed from Old Hindi and was spoken in Delhi and neighbouring areas. It incorporated a significant number of Persian language, Persian loanwords. Hindi is an Languages with official status in India, official language in twelve states (Bihar, Gujarat , Mizoram , Maharashtra ,Chhattisgarh, Haryana, Himachal Pradesh, Jharkhand, Madhya Pradesh, Rajasthan, Uttar Pradesh, Uttarakhand), and six Union territory, union territories (Andaman and Nicobar Islands, Delhi, Chandigarh, Dadra and Nagar Haveli and Daman and Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hungarian Language
Hungarian, or Magyar (, ), is an Ugric language of the Uralic language family spoken in Hungary and parts of several neighboring countries. It is the official language of Hungary and one of the 24 official languages of the European Union. Outside Hungary, it is also spoken by Hungarians, Hungarian communities in southern Slovakia, western Ukraine (Zakarpattia Oblast, Transcarpathia), central and western Romania (Transylvania), northern Serbia (Vojvodina), northern Croatia, northeastern Slovenia (Prekmurje), and eastern Austria (Burgenland). It is also spoken by Hungarian diaspora communities worldwide, especially in North America (particularly the Hungarian Americans, United States and Canada) and Israel. With 14 million speakers, it is the Uralic family's most widely spoken language. Classification Hungarian is a member of the Uralic language family. Linguistic connections between Hungarian and other Uralic languages were noticed in the 1670s, and the family's existenc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indonesian Language
Indonesian (; ) is the official language, official and national language of Indonesia. It is a standard language, standardized variety (linguistics), variety of Malay language, Malay, an Austronesian languages, Austronesian language that has been used as a lingua franca in the multilingual Indonesian archipelago for centuries. With over 280 million inhabitants, Indonesia ranks as the list of countries by population, fourth-most populous nation globally. According to the 2020 census, over 97% of Indonesians are fluent in Indonesian, making it the largest language by number of speakers in Southeast Asia and one of the List of languages by total number of speakers, most widely spoken languages in the world.James Neil Sneddon. ''The Indonesian Language: Its History and Role in Modern Society''. UNSW Press, 2004. Indonesian vocabulary has been influenced by various native regional languages such as Javanese language, Javanese, Sundanese language, Sundanese, Minangkabau language, Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Home Page
A home page (or homepage) is the main web page of a website. Usually, the home page is located at the Root directory, root of the website's Domain name, domain or subdomain. For example, if the domain is example.com, the home page is likely located at the URL www.example.com/. The term may also refer to the start page shown in a web browser when the application software, application first opens. Function A home page is the main web page that a visitor will view when they navigate to a website via a search engine, and it may also function as a landing page to attract visitors. In some cases, the home page is a Webserver directory index, site directory, particularly when a website has multiple home pages. Good home Web design, page design is usually a high priority for a website; for example, a news website may curate headlines and first paragraphs of top stories, with hyperlink, links to full articles. According to ''Homepage Usability'', the home page is the "most importan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Korean Language
Korean is the first language, native language for about 81 million people, mostly of Koreans, Korean descent. It is the national language of both South Korea and North Korea. In the south, the language is known as () and in the north, it is known as (). Since the turn of the 21st century, aspects of Korean Wave, Korean popular culture have spread around the world through globalization and Korean Wave, cultural exports. Beyond Korea, the language is recognized as a minority language in parts of China, namely Jilin, and specifically Yanbian Korean Autonomous Prefecture, Yanbian Prefecture, and Changbai Korean Autonomous County, Changbai County. It is also spoken by Sakhalin Koreans in parts of Sakhalin, the Russian island just north of Japan, and by the in parts of Central Asia. The language has a few Extinct language, extinct relatives which—along with the Jeju language (Jejuan) of Jeju Island and Korean itself—form the compact Koreanic language family. Even so, Jejuan and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polish Language
Polish (, , or simply , ) is a West Slavic languages, West Slavic language of the Lechitic languages, Lechitic subgroup, within the Indo-European languages, Indo-European language family, and is written in the Latin script. It is primarily spoken in Poland and serves as the official language of the country, as well as the language of the Polish diaspora around the world. In 2024, there were over 39.7 million Polish native speakers. It ranks as the sixth-most-spoken among languages of the European Union. Polish is subdivided into regional Dialects of Polish, dialects. It maintains strict T–V distinction pronouns, Honorifics (linguistics), honorifics, and various forms of formalities when addressing individuals. The traditional 32-letter Polish alphabet has nine additions (, , , , , , , , ) to the letters of the basic 26-letter Latin alphabet, while removing three (x, q, v). Those three letters are at times included in an extended 35-letter alphabet. The traditional set compri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
