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An Algorithmic View of the Universe
An Algorithmic View of the Universe
Published: 2013/01/23
Channel: Association for Computing Machinery (ACM)
DIKU Talk:
DIKU Talk: 'Simple Algorithms Whose Analysis Isn't' by Robert Tarjan
Published: 2015/04/22
Channel: DIKU - Datalogisk Institut, Københavns Universitet
Interview with Robert Tarjan at DIKU
Interview with Robert Tarjan at DIKU
Published: 2015/04/22
Channel: DIKU - Datalogisk Institut, Københavns Universitet
Robert Tarjan: Search Tree Mysteries
Robert Tarjan: Search Tree Mysteries
Published: 2012/08/24
Channel: princetonacademics
4th HLF - Lecture: Robert Tarjan
4th HLF - Lecture: Robert Tarjan
Published: 2016/09/23
Channel: Heidelberg Laureate Forum
The Heidelberg Laureate Forum Foundation presents the HLF Portraits: Bob Tarjan
The Heidelberg Laureate Forum Foundation presents the HLF Portraits: Bob Tarjan
Published: 2017/10/06
Channel: Heidelberg Laureate Forum
Rice CS Colloquium: Robert Tarjan, 09/30/2016
Rice CS Colloquium: Robert Tarjan, 09/30/2016
Published: 2016/10/01
Channel: Rice CS GSA
Tarjan
Tarjan's Toposort Algorithm - Graph Theory 14
Published: 2016/03/07
Channel: 0612 TV w/ NERDfirst
Chess.com Isle of Man International: Round 3 | Tarjan Upsets Kramnik!
Chess.com Isle of Man International: Round 3 | Tarjan Upsets Kramnik!
Published: 2017/09/30
Channel: Chess.com
Tarjan
Tarjan
Published: 2016/12/27
Channel: varam
An Algorithmic View of the Universe
An Algorithmic View of the Universe
Published: 2016/11/19
Channel: Christine Mclaughlin
James Tarjan vs Vladimir Kramnik Isle of Man Open (2017)
James Tarjan vs Vladimir Kramnik Isle of Man Open (2017)
Published: 2017/09/26
Channel: Chess Amateur
Sagar tarjan
Sagar tarjan
Published: 2016/02/08
Channel: kaushal Kumar
THE LEGEND OF TARZAN - Official Trailer 2
THE LEGEND OF TARZAN - Official Trailer 2
Published: 2016/03/17
Channel: Warner Bros. Pictures
Fibonacci Heap - An efficient priority Queue data structure (Introduction)
Fibonacci Heap - An efficient priority Queue data structure (Introduction)
Published: 2017/02/11
Channel: StudyKorner
Janet Ginnings Training with Tee Tarjan at MighteeFit Health Studios
Janet Ginnings Training with Tee Tarjan at MighteeFit Health Studios
Published: 2010/02/13
Channel: jghairandbeauty
Some quotes from Robert Harper
Some quotes from Robert Harper
Published: 2013/04/19
Channel: thedeemon
Gym of tarjan
Gym of tarjan
Published: 2016/11/07
Channel: Ajay Singh
rishabh tarjan
rishabh tarjan
Published: 2012/06/25
Channel: Rishabh Kumar
Puentes de un Grafo: Algoritmo de Tarjan
Puentes de un Grafo: Algoritmo de Tarjan
Published: 2016/10/29
Channel: Tutorías con Ingenio Universidad Nacional
tarjan mjc
tarjan mjc
Published: 2012/08/21
Channel: Ajay Agroiya
Hong Hong city  time-lapse  by Tarjan Rai  ( sankhuwa sabha )
Hong Hong city time-lapse by Tarjan Rai ( sankhuwa sabha )
Published: 2016/06/01
Channel: RAI TARJAN
CACM August 2014 Feature Video Efficient Maximum Flow Algorithms
CACM August 2014 Feature Video Efficient Maximum Flow Algorithms
Published: 2014/08/07
Channel: Association for Computing Machinery (ACM)
MOV 2405
MOV 2405
Published: 2016/10/07
Channel: Robert Tarjan
tarjan
tarjan
Published: 2013/08/18
Channel: Sona Paul
LEGEND OF TARZAN Kritik Review & Trailer Deutsch German (2016)
LEGEND OF TARZAN Kritik Review & Trailer Deutsch German (2016)
Published: 2016/07/20
Channel: Robert Hofmann
Strongly Connected Components Tutorial
Strongly Connected Components Tutorial
Published: 2015/04/01
Channel: Michael Mroczka
Tarjan Alogrithm parte 1
Tarjan Alogrithm parte 1
Published: 2015/01/20
Channel: jorgerodriguezc
Tarjan My GSD
Tarjan My GSD
Published: 2017/07/18
Channel: DHIRAJ AND TARJAN
A New Approach to Incremental Cycle Detection and Related Problems By Prof. Manoj Gupta
A New Approach to Incremental Cycle Detection and Related Problems By Prof. Manoj Gupta
Published: 2017/01/31
Channel: IIT Gandhinagar
Tarján: meg kell mutatnunk, hogy civilek nélkül nincs demokrácia
Tarján: meg kell mutatnunk, hogy civilek nélkül nincs demokrácia
Published: 2013/06/27
Channel: ATVzrt
Etyek-Bicske-Csabdi-Tarján kerékpárút drónfelvétel
Etyek-Bicske-Csabdi-Tarján kerékpárút drónfelvétel
Published: 2017/10/28
Channel: Zoltán Tessely
Puentes de un Grafo: Árbol de Expansión
Puentes de un Grafo: Árbol de Expansión
Published: 2016/10/29
Channel: Tutorías con Ingenio Universidad Nacional
Alice Tarjan & Elfenfeuer Win Adult Amateur Grand Prix Championship at #USDressageFinals
Alice Tarjan & Elfenfeuer Win Adult Amateur Grand Prix Championship at #USDressageFinals
Published: 2014/11/08
Channel: US Equestrian
[Wikipedia] Jeff Westbrook
[Wikipedia] Jeff Westbrook
Published: 2017/11/28
Channel: WikiTubia
Mi már leszoktunk róla
Mi már leszoktunk róla
Published: 2016/01/30
Channel: Various Artists - Topic
tarján
tarján
Published: 2007/06/02
Channel: VeroMhun
Graph Theory - Strongly Connected Components - Tarjan - 1 (Arabic)
Graph Theory - Strongly Connected Components - Tarjan - 1 (Arabic)
Published: 2016/05/22
Channel: Arabic Competitive Programming
TT nyar tarjan dora
TT nyar tarjan dora
Published: 2012/08/24
Channel: DIVATKREÁTOR
Rob Schapire on Multiclass Boosting
Rob Schapire on Multiclass Boosting
Published: 2012/04/11
Channel: The University of Chicago
005 Tarjan implementation
005 Tarjan implementation
Published: 2015/11/11
Channel: Townman Alex
Fibonacci heap
Fibonacci heap
Published: 2015/10/25
Channel: Audiopedia
1932 COME ON, TARZAN - Ken Maynard, Merna Kennedy - Full movie
1932 COME ON, TARZAN - Ken Maynard, Merna Kennedy - Full movie
Published: 2017/12/13
Channel: captainbijou.com
2017.06.13. Tarján Acél Futam
2017.06.13. Tarján Acél Futam
Published: 2017/06/13
Channel: Salgótarjáni Városi Televízió
Tatabánya - Tarján - Tata || Suzuki GSX 650F
Tatabánya - Tarján - Tata || Suzuki GSX 650F
Published: 2016/06/21
Channel: motovideo.tv
Szent György Napok 2009 - Dancs Annamari és Tarján Pál
Szent György Napok 2009 - Dancs Annamari és Tarján Pál
Published: 2009/04/28
Channel: sztgyorgynapok2009
Tarjan
Tarjan's Algorithm Finding Bridges in less than 6 MINUTES!
Published: 2016/03/04
Channel: Alex A
The Legend of Tarzan Official Teaser Trailer #1 (2016) - Alexander Skarsgård, Margot Robbie Movie HD
The Legend of Tarzan Official Teaser Trailer #1 (2016) - Alexander Skarsgård, Margot Robbie Movie HD
Published: 2015/12/10
Channel: Movieclips Trailers
Graph Theory - Strongly Connected Components - Tarjan - 2 (Arabic)
Graph Theory - Strongly Connected Components - Tarjan - 2 (Arabic)
Published: 2016/05/28
Channel: Arabic Competitive Programming
Le Belier-KK Ajka – Tarján SE 23-15(9-9)
Le Belier-KK Ajka – Tarján SE 23-15(9-9)
Published: 2016/04/21
Channel: Ajkai Szó
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WIKIPEDIA ARTICLE

From Wikipedia, the free encyclopedia
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Robert Endre Tarjan
Bob Tarjan.jpg
Born (1948-04-30) April 30, 1948 (age 69)
Pomona, California
Alma mater Caltech
Stanford
Known for Algorithms and data structures
Awards Nevanlinna Prize (1982)
Turing Award (1986)
Paris Kanellakis Award (1999)
Scientific career
Fields Computer Science
Institutions Cornell
Berkeley
Stanford University
New York University
Princeton University
Hewlett-Packard
Microsoft
Intertrust
Thesis An Efficient Planarity Algorithm (1972)

Robert Endre Tarjan (born April 30, 1948) is an American computer scientist and mathematician. He is the discoverer of several graph algorithms, including Tarjan's off-line lowest common ancestors algorithm, and co-inventor of both splay trees and Fibonacci heaps. Tarjan is currently the James S. McDonnell Distinguished University Professor of Computer Science at Princeton University, and the Chief Scientist at Intertrust Technologies Corporation.[1]

Early life and education[edit]

He was born in Pomona, California. His father was a child psychiatrist specializing in mental retardation, and ran a state hospital.[2] As a child, Tarjan read a lot of science fiction, and wanted to be an astronomer. He became interested in mathematics after reading Martin Gardner's mathematical games column in Scientific American. He became seriously interested in math in the eighth grade, thanks to a "very stimulating" teacher.[3]

While he was in high school, Tarjan got a job, where he worked IBM punch card collators. He first worked with real computers while studying astronomy at the Summer Science Program in 1964.[2]

Tarjan obtained a Bachelor's degree in mathematics from the California Institute of Technology in 1969. At Stanford University, he received his master's degree in computer science in 1971 and a Ph.D. in computer science (with a minor in mathematics) in 1972. At Stanford, he was supervised by Robert Floyd[4] and Donald Knuth,[5] both highly prominent computer scientists, and his Ph.D. dissertation was An Efficient Planarity Algorithm. Tarjan selected computer science as his area of interest because he believed that computer science was a way of doing mathematics that could have a practical impact.[6]

Computer science career[edit]

Tarjan has been teaching at Princeton University since 1985.[6] He has also held academic positions at Cornell University (1972–73), University of California, Berkeley (1973–1975), Stanford University (1974–1980), and New York University (1981–1985). He has also been a fellow of the NEC Research Institute (1989–1997).[7] In April 2013 he joined Microsoft Research Silicon Valley in addition to the position at Princeton. In October 2014 he rejoined Intertrust Technologies as chief scientist.

Tarjan has worked at AT&T Bell Labs (1980–1989), Intertrust Technologies (1997–2001, 2014–present), Compaq (2002) and Hewlett Packard (2006–2013).

Algorithms and data structures[edit]

Tarjan is known for his pioneering work on graph theory algorithms and data structures. Some of his well-known algorithms include Tarjan's off-line least common ancestors algorithm, and Tarjan's strongly connected components algorithm, and he was one of five co-authors of the median of medians linear time selection algorithm. The Hopcroft-Tarjan planarity testing algorithm was the first linear-time algorithm for planarity-testing.[8]

Tarjan has also developed important data structures such as the Fibonacci heap (a heap data structure consisting of a forest of trees), and the splay tree (a self-adjusting binary search tree; co-invented by Tarjan and Daniel Sleator). Another significant contribution was the analysis of the disjoint-set data structure; he was the first to prove the optimal runtime involving the inverse Ackermann function.

Awards[edit]

Tarjan received the Turing Award jointly with John Hopcroft in 1986. The citation for the award states[7] that it was:

For fundamental achievements in the design and analysis of algorithms and data structures.

Tarjan was also elected an ACM Fellow in 1994. The citation for this award states:[9]

For seminal advances in the design and analysis of data structures and algorithms.

Some of the other awards for Tarjan include:

Patents[edit]

Tarjan holds at least 18 U.S. patents.[12] These include:

  • J. Bentley, D. Sleator, and R. E. Tarjan, U. S. Patent 4,796,003, Data Compaction, 1989[13]
  • N. Mishra, R. Schreiber, and R. E. Tarjan, U. S. Patent 7,818,272, Method for discovery of clusters of objects in an arbitrary undirected graph using a difference between a fraction of internal connections and maximum fraction of connections by an outside object, 2010[14]
  • B. Pinkas, S. Haber, R. E. Tarjan, and T. Sander, U. S. Patent 8220036, Establishing a secure channel with a human user, 2012[15]

Notes[edit]

  1. ^ https://www.intertrust.com/newsroom/leadership/#robert-e-tarjan
  2. ^ a b Shasha, Dennis Elliott; Lazere, Cathy A. (1998) [1995]. "Robert E. Tarjan: In Search of Good Structure". Out of Their Minds: The Lives and Discoveries of 15 Great Computer Scientists. Copernicus/Springer. pp. 102–119. ISBN 978-0-387-97992-2. OCLC 32240355. 
  3. ^ "Robert Tarjan: The Art of the Algorithm". Hewlett-Packard. Retrieved 2010-09-05. 
  4. ^ "Robert Endre Tarjan". Mathematics Genealogy Project. Retrieved 2008-01-09. 
  5. ^ Robert, Tarjan. "Curriculum Vitae". 
  6. ^ a b "Robert Endre Tarjan: The art of the algorithm (interview)". Hewlett-Packard. September 2004. Retrieved 2008-01-09. 
  7. ^ a b c d e f Turing award citation, ACM, retrieved 2014-01-19.
  8. ^ Kocay, William; Kreher, Donald L (2005). "Planar Graphs". Graphs, algorithms, and optimization. Boca Raton: Chapman & Hall/CRC. p. 312. ISBN 978-1-58488-396-8. OCLC 56319851. 
  9. ^ http://www.acm.org/awards/fellows_citations_n-z/tarjan.html
  10. ^ Nevanlinna prize winners, International Mathematical Union, retrieved 2014-01-19.
  11. ^ "Archived copy". Archived from the original on 2010-10-10. Retrieved 2010-08-26. 
  12. ^ http://www.cs.princeton.edu/~ret/Vita2012A1.pdf
  13. ^ http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=4,796,003.PN.&OS=PN/4,796,003&RS=PN/4,796,003
  14. ^ http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7,818,272.PN.&OS=PN/7,818,272&RS=PN/7,818,272
  15. ^ http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8220036.PN.&OS=PN/8220036&RS=PN/8220036

References[edit]

External links[edit]

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