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Peter Fitzhugh Brown
Peter Fitzhugh Brown (born February 2, 1955) is the CEO of the American hedge fund Renaissance Technologies. Personal life and education Brown is a son of Henry B. R. Brown, who invented the world's first money market fund, the Reserve Fund. Brown's great-grandfather was United States federal judge Addison Brown, who was also a botanist and a founder of the New York Botanical Garden. He is also a descendent of Virginia statesman Richard Henry Lee, whose June 1776 resolution led to the United States Declaration of Independence. Brown graduated from Harvard University with a B.A. in mathematics. He later earned a Ph.D. in computer science from Carnegie Mellon University. He married Margaret Hamburg on May 23, 1992, who would later serve as the head of the FDA under the Obama Administration. Together they have two children. Their family foundation, Quetzal Trust, has over $380 million in assets as of 2020. Career After graduating from Harvard, Brown joined a team at Exxon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renaissance Technologies
Renaissance Technologies LLC, also known as RenTech or RenTec, is an American hedge fund based in East Setauket, New York, on Long Island, which specializes in systematic trading using quantitative models derived from mathematical and statistical analysis. Their signature Medallion fund is famed for the best record in investing history. Renaissance was founded in 1982 by James Simons, a mathematician who formerly worked as a code breaker during the Cold War. In 1988, the firm established its most profitable portfolio, the Medallion Fund, which used an improved and expanded form of Leonard Baum's mathematical models, improved by algebraist James Ax, to explore correlations from which they could profit. Elwyn Berlekamp was instrumental in evolving trading to shorter-dated, pure systems driven decision-making. The hedge fund was named Medallion in honor of the math awards that Simons and Ax had won. Renaissance's flagship Medallion fund, which is run mostly for fund employees, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frederick Jelinek
Frederick Jelinek (18 November 1932 – 14 September 2010) was a Czech-American researcher in information theory, automatic speech recognition, and natural language processing. He is well known for his oft-quoted statement, "Every time I fire a linguist, the performance of the speech recognizer goes up". Jelinek was born in Czechoslovakia before World War II and emigrated with his family to the United States in the early years of the communist regime. He studied engineering at the Massachusetts Institute of Technology and taught for 10 years at Cornell University before accepting a job at IBM Research. In 1961, he married Czech screenwriter Milena Jelinek. At IBM, his team advanced approaches to computer speech recognition and machine translation. After IBM, he went to head the Center for Language and Speech Processing at Johns Hopkins University for 17 years, where he was still working on the day he died. Personal life Jelinek was born on November 18, 1932, as Bedřich Jelí ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White's Ferry
White's Ferry was the last remaining cable ferry service that carried cars, bicycles, and pedestrians across the Potomac River between Loudoun County, Virginia and Montgomery County, Maryland. The location offered fishing services and water recreation including canoeing. It transported approximately 600 customers daily until closing in 2020. History Early settlers recognized that the relatively still waters of the Potomac River at the location would provide an ideal location for a ferry. One of the earliest mentions of the ferry appeared in an act of the Maryland General Assembly passed on December 27, 1791 (Liber JG. No. 1, folio 447): A road map published in the Maryland Land Records for Montgomery County in 1795 (Liber F-6, folio 195) showed a side road near Seneca Bridge coming off the main road between Georgetown and the mouth of the Monocacy River labeled "Road to Conrad Mire's ferry." Another early mention of the ferry appeared in the book: "The life and advent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potomac River
The Potomac River () drains the Mid-Atlantic United States, flowing from the Potomac Highlands into Chesapeake Bay. It is long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map. Retrieved August 15, 2011 with a drainage area of 14,700 square miles (38,000 km2), and is the fourth-largest river along the East Coast of the United States and the 21st-largest in the United States. Over 5 million people live within its watershed. The river forms part of the borders between Maryland and Washington, D.C. on the left descending bank and between West Virginia and Virginia on the right descending bank. Except for a small portion of its headwaters in West Virginia, the North Branch Potomac River is considered part of Maryland to the low-water mark on the opposite bank. The South Branch Potomac River lies completely within the state of West Virginia except for its headwaters, which lie in Virginia. Course The Potomac River runs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loudoun County, Virginia
Loudoun County () is in the northern part of the Commonwealth of Virginia in the United States. In 2020, the census returned a population of 420,959, making it Virginia's third-most populous county. Loudoun County's seat is Leesburg. Loudoun County is part of the Washington–Arlington–Alexandria, DC–VA–MD–WV Metropolitan Statistical Area. As of 2020, Loudoun County had a median household income of $147,111. Since 2008, the county has been ranked first in the U.S. in median household income among jurisdictions with a population of 65,000 or more. Between 1952 and 2008, Loudoun was a Republican-leaning county. However, this has changed in recent years with Democrats winning Loudoun in all statewide campaigns after 2014 and Democrats holding a two-thirds majority on the county Board of Supervisors, reflective of an ongoing realignment of affluent and college-educated voters towards the party. __TOC__ History Loudoun County was established in 1757 from Fairfax Count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Laufer
Henry B. Laufer (born 1945) is an American hedge fund manager, investor, mathematician, and philanthropist. He served as the Vice President of Research at Renaissance Technologies. Early life Henry B. Laufer was born to a Jewish family in 1945. He received his PhD from Princeton University in 1965, studying with Robert Gunning. Career Laufer joined the mathematics department at the State University of New York at Stony Brook as a faculty member in 1971. His research focused on complex variables and algebraic topology. He left Stony Brook in 1992 to join Renaissance Technologies. In 2015, a conference was held for his 70th anniversary at Tsinghua University in China. Laufer co-founded the Medallion Fund with Jim Simons in 1988. Laufer served as chief scientist and vice president of research at Renaissance Technologies, its parent company. He now serves on its board of directors. Laufer earned US$125,000,000 in 2008, during the financial crisis of 2007–2008. The following year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Magerman
David Mitchell Magerman (born 1968) is an American computer scientist and philanthropist. He spent 22 years working for an investment management company and hedge fund, Renaissance Technologies. Early life and education Magerman was born to Melvin and Sheila Magerman. His father owned All-City Taxi in Miami, Florida, and his mother was a secretary for a group of accounting firms in Tamarac. Magerman received his Ph.D. degree from Stanford University in computer science. He also received his B.S. from the University of Pennsylvania. Career Magerman spent two decades working for James Simons’s New York-based investment management company Renaissance Technologies, where he developed trading algorithms. In 2017, Magerman publicly opposed the views of his boss, Robert Mercer, concerning politics and race issues in America. Mercer, the co-CEO of Renaissance Technology, suspended Magerman without pay and later made the suspension permanent. That same year Magerman filed a federal law ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garry Kasparov
Garry Kimovich Kasparov (born 13 April 1963) is a Russian chess grandmaster, former World Chess Champion, writer, political activist and commentator. His peak rating of 2851, achieved in 1999, was the highest recorded until being surpassed by Magnus Carlsen in 2013. From 1984 until his retirement in 2005, Kasparov was ranked world No. 1 for a record 255 months overall for his career, the most in history. Kasparov also holds records for the most consecutive professional tournament victories (15) and Chess Oscars (11). Kasparov became the youngest ever undisputed World Chess Champion in 1985 at age 22 by defeating then-champion Anatoly Karpov. He held the official FIDE world title until 1993, when a dispute with FIDE led him to set up a rival organization, the Professional Chess Association. In 1997 he became the first world champion to lose a match to a computer under standard time controls when he lost to the IBM supercomputer Deep Blue in a highly publicized match. He co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deep Blue (chess Computer)
Deep Blue was a chess-playing expert system run on a unique purpose-built IBM supercomputer. It was the first computer to win a game, and the first to win a match, against a reigning world champion under regular time controls. Development began in 1985 at Carnegie Mellon University under the name ChipTest. It then moved to IBM, where it was first renamed Deep Thought, then again in 1989 to Deep Blue. It first played world champion Garry Kasparov in a six-game match in 1996, where it lost four games to two. It was upgraded in 1997 and in a six-game re-match, it defeated Kasparov by winning three games and drawing one. Deep Blue's victory is considered a milestone in the history of artificial intelligence and has been the subject of several books and films. History While a doctoral student at Carnegie Mellon University, Feng-hsiung Hsu began development of a chess-playing supercomputer under the name ChipTest. The machine won the North American Computer Chess Champ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abe Peled
Abe Peled ( he, אייב פלד) is an American and Israeli businessman. Biography Abraham (Abe) Peled was born in Romania. He graduated from the Technion with BSc, and MSc in 1967 and 1971 respectively, both degrees in electrical engineering. He did his graduate work at Princeton University in the US on Digital Signal Processing and got his PhD in 1974. From 1967 to 1971 Peled was a technical officer in the Israeli Army Signal Corps. From 1974 to 1993 Peled worked for IBM's Research Division in the United States, initially as a research scientist and later in research management, his last position was vice president for systems and software, with management responsibility for all worldwide research and advanced development activities in the IBM Research Division. In December 1991 he was featured in the cover story of the NY Times Sunday business section for his innovative internal start-up on the Power Visualization System. From 1993 to 1995 Peled served as senior vice pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leonard E
Leonard or ''Leo'' is a common English masculine given name and a surname. The given name and surname originate from the Old High German ''Leonhard'' containing the prefix ''levon'' ("lion") from the Greek Λέων ("lion") through the Latin '' Leo,'' and the suffix ''hardu'' ("brave" or "hardy"). The name has come to mean "lion strength", "lion-strong", or "lion-hearted". Leonard was the name of a Saint in the Middle Ages period, known as the patron saint of prisoners. Leonard is also an Irish origin surname, from the Gaelic ''O'Leannain'' also found as O'Leonard, but often was anglicised to just Leonard, consisting of the prefix ''O'' ("descendant of") and the suffix ''Leannan'' ("lover"). The oldest public records of the surname appear in 1272 in Huntingdonshire, England, and in 1479 in Ulm, Germany. Variations The name has variants in other languages: * Leen, Leendert, Lenard (Dutch) * Lehnertz, Lehnert (Luxembourgish) * Len (English) * :hu:Lénárd (Hungarian) * Len ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jim Simons (mathematician)
James Harris Simons (; born 25 April 1938) is an American mathematician, billionaire hedge fund manager, and philanthropist. He is the founder of Renaissance Technologies, a quantitative hedge fund based in East Setauket, New York. He and his fund are known to be quantitative investors, using mathematical models and algorithms to make investment gains from market inefficiencies. Due to the long-term aggregate investment returns of Renaissance and its Medallion Fund, Simons is described as the "greatest investor on Wall Street," and more specifically "the most successful hedge fund manager of all time." As reported by ''Bloomberg Billionaires Index'', Simons' net worth is estimated to be $25.2 billion, making him the 66th-richest person in the world. Simons is known for his studies on pattern recognition. He developed the Chern–Simons form (with Shiing-Shen Chern), and contributed to the development of string theory by providing a theoretical framework to combine geometry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
