Who was known for being a convicted murder and entrepreneur, but also known for inventing what's known as the dancing tree in computer science?
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Dancing tree In computer science, a dancing tree is a tree data structure similar to B+ trees. It was invented by Hans Reiser, for use by the Reiser4 file system. As opposed to self-balancing binary search trees that attempt to keep their nodes balanced at all times, dancing trees only balance their nodes when flushing data to a disk (either because of memory constraints or because a transaction has completed).
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Hans Reiser Hans Thomas Reiser (born December 19, 1963) is an American convicted murderer, computer programmer, and entrepreneur. He is the creator of the ReiserFS computer file system, which is contained within the Linux kernel, as well as its attempted successor, Reiser4. In 2004, he founded Namesys, a corporation meant to coordinate the development of both file systems.
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Ira Einhorn Ira Samuel Einhorn (born May 15, 1940), known as "the Unicorn Killer", is an American environmental activist convicted of murdering his ex-girlfriend Holly Maddux. On September 9, 1977, Maddux disappeared following a trip to collect her things from the apartment she and Einhorn had shared in Philadelphia. Eighteen months later, police found Maddux's partially mummified body in a trunk in his closet. It had been packed with Styrofoam pellets, air fresheners, and newspapers.
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Larry Eyler Larry Eyler (December 21, 1952 – March 6, 1994) was an American serial killer convicted and sentenced to death in Illinois for the 1984 murder and dismemberment of 15-year-old Daniel Bridges.
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Clark Olofsson Clark Oderth Olofsson (later known as Daniel Demuynck), (born 1 February 1947) in Trollhättan, Sweden, is a Swedish criminal now living in Belgium. He has received sentences for attempted murder, assault, robbery, and dealing narcotics and has spent more than half of his life in correctional institutions in Sweden. Olofsson has been called Sweden's first "pop-gangster".
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Wendell Brown Wendell Brown is an American computer scientist, entrepreneur and inventor best known for his innovations in Telecommunications and Internet Technology, Cybersecurity, Smartphone app development, and the Internet of Things. Brown has founded multiple notable technology companies including Teleo, LiveOps and eVoice.
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Robert S. Barton Robert Stanley "Bob" Barton (February 13, 1925 – January 28, 2009) was recognized as the chief architect of the Burroughs B5000 and other computers such as the B1700, and a co-inventor of dataflow. Barton's thinking has been broadly influential. As one example, Barton influenced the systems and higher-level computer language thinking of Alan Kay who went on to further develop object-oriented programming, co-design Smalltalk, and develop concepts key to modern GUI systems built into the Macintosh and later Microsoft Windows.
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Judas Tree Judas Tree is a common name for a flowering tree, "Cercis siliquastrum" from which Judas Iscariot is reputed to have hanged himself
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Patrick Naughton Patrick Naughton (born in 1965) is an American software developer, known as one of the creators of the Java programming language and later a high-profile sex offender.
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Peter J. Denning Peter James Denning (born January 6, 1942) is an American computer scientist and writer. He is best known for pioneering work in virtual memory, especially for inventing the working-set model for program behavior, which addressed thrashing in operating systems and became the reference standard for all memory management policies. He is also known for his works on principles of operating systems, operational analysis of queueing network systems, design and implementation of CSNET, the ACM digital library, codifying the great principles of computing, and most recently for the book "The Innovator's Way", on innovation as a set of learnable practices.
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Graham's number Graham's number is an enormous number that arises as an upper bound on the answer of a problem in the mathematical field of Ramsey theory. It is named after mathematician Ronald Graham, who used the number as a simplified explanation of the upper bounds of the problem he was working on in conversations with popular science writer Martin Gardner. Gardner later described the number in "Scientific American" in 1977, introducing it to the general public. At the time of its introduction, it was the largest specific positive integer ever to have been used in a published mathematical proof. The number was published in the 1980 "Guinness Book of World Records", adding to its popular interest. Other specific integers (such as TREE(3)) known to be far larger than Graham's number have since appeared in many serious mathematical proofs, for example in connection with Harvey Friedman's various finite forms of Kruskal's theorem. Additionally, smaller upper bounds on the Ramsey theory problem from which Graham's number derived have since been proven to be valid.
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Kenton Clarke Kenton J. Clarke (born November 7, 1951) is an American entrepreneur and musician. He graduated from Norwalk State Technical College in 1972 and the University of New Haven in 1979. He is the founder of Computer Consulting Associates International and Omnikal.
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Stanley Williams Stanley Tookie Williams III (December 29, 1953 – December 13, 2005) was an American gang member and convicted murderer, who co-founded the West Side Crips, a street gang which has its roots in South Central Los Angeles in 1969. In 1979, he was convicted of murdering four people— a 7-Eleven employee, and in a separate occasion, an elderly Taiwanese couple and their daughter — and sentenced to death.
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Paul Graham (computer programmer) Paul Graham ( ; born 13 November 1964) is an English born computer scientist, entrepreneur, venture capitalist, author, and blogger. He is best known for his work on Lisp, his former startup Viaweb (later renamed "Yahoo! Store"), co-founding the influential startup accelerator and seed capital firm Y Combinator, his blog, and Hacker News. He is the author of several programming books, such as: "On Lisp" (1993), "ANSI Common Lisp" (1995), and "Hackers & Painters" (2004). Technology journalist Steven Levy has described Graham as a 'hacker philosopher'.
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David Meirhofer David G. Meirhofer (June 8, 1949 – September 29, 1974) was an American serial killer who committed four murders in rural Montana between 1967 and 1974 — three of them children. At the time, the Federal Bureau of Investigation was developing a new method of tracking killers called offender profiling, and Meirhofer was the first serial killer to be investigated using the technique. Offender profiling is a method used to learn clues about the characteristics of an unknown killer from evidence at the scene of the crime and establish their behavioural patterns before they reach the height of their criminality.
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Claude Bloodgood Claude Frizzel Bloodgood (born Klaus Frizzel Bluttgutt III; July 14, 1937 – August 4, 2001) was a controversial American chess player. As a young man, he got into trouble with the law and was arrested several times. He was sentenced to death in 1970 after having been convicted of murdering his mother, although this sentence was later commuted to life in prison. While in prison, he remained a very active chess player, playing a large number of correspondence games and rated games with other inmates. Over time, he achieved a very high ranking in the United States Chess Federation (USCF) by playing in a closed pool, which the federation alleges was due to rating manipulation. He died in prison in 2001.
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Martin Farach-Colton Martin Farach-Colton is an American computer scientist, known for his work in streaming algorithms, suffix tree construction, pattern matching in compressed data, cache-oblivious algorithms, and lowest common ancestor data structures. He is a professor of computer science at Rutgers University, and a co-founder of storage technology startup company Tokutek.
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PQ tree A PQ tree is a tree-based data structure that represents a family of permutations on a set of elements, discovered and named by Kellogg S. Booth and George S. Lueker in 1976. It is a rooted, labeled tree, in which each element is represented by one of the leaf nodes, and each non-leaf node is labelled P or Q. A P node has at least two children, and a Q node has at least three children.
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Charles Babbage Charles Babbage {'1': ", '2': ", '3': ", '4': "} ( ; 26 December 1791 – 18 October 1871) was an English polymath. A mathematician, philosopher, inventor and mechanical engineer, Babbage originated the concept of a digital programmable computer.
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Kenneth Biros Kenneth Biros (June 24, 1958 – December 8, 2009) was an American convicted murderer who was sentenced to death and executed for the aggravated murder, attempted rape, aggravated robbery and felonious sexual penetration of a young woman. Biros was the first condemned person to be executed by lethal injection in the United States with the use of a single drug, setting a Guinness World Record.
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Tim Scully Robert "Tim" Scully (born August 27, 1944) is best known in the psychedelic underground for his work in the production of LSD from 1966 to 1969, for which he was indicted in 1973 and convicted in 1974. His best known product, dubbed "Orange Sunshine", was considered the standard for quality LSD in 1969. He was featured in the documentary "The Sunshine Makers".
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Samuel Genensky Samuel M. Genensky (26 July 1927 in New Bedford, Massachusetts – 26 June 2009 in Santa Monica, California) was an American computer scientist, best known as an inventor for devices to assist sight-impaired persons. He was also well known for his advocacy on behalf of the blind.