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1
Robert Tarjan: Search Tree Mysteries
Robert Tarjan: Search Tree Mysteries
::2012/08/24::
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2
An Algorithmic View of the Universe
An Algorithmic View of the Universe
::2013/01/23::
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3
Tarjan sadekeppi - Salman saappaat
Tarjan sadekeppi - Salman saappaat
::2013/10/16::
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4
TARJAN.mp4
TARJAN.mp4
::2011/05/16::
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5
7.9 - Path Compression Tarjan
7.9 - Path Compression Tarjan's Analysis 2 - Advanced Union-Find - [DSA 2] By Tim Roughgarden
::2013/09/30::
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6
Tarján: meg kell mutatnunk, hogy civilek nélkül nincs demokrácia
Tarján: meg kell mutatnunk, hogy civilek nélkül nincs demokrácia
::2013/06/27::
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7
TT nyar tarjan dora
TT nyar tarjan dora
::2012/08/02::
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8
TT nyar tarjan dora
TT nyar tarjan dora
::2012/08/24::
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9
tarjan
tarjan
::2014/02/13::
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10
05. Tarján Pál - Let It Be
05. Tarján Pál - Let It Be
::2012/10/18::
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11
Houson and Zach Interview Tarjan
Houson and Zach Interview Tarjan
::2011/11/02::
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12
Tarjan
Tarjan
::2014/03/01::
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13
rishabh tarjan
rishabh tarjan
::2012/06/25::
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14
tarjan
tarjan
::2012/08/05::
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15
tarjan
tarjan
::2012/03/28::
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16
10.7 - Computing Strong Components: Algorithm - Graph Search - [DSA 1] By Tim Roughgarden
10.7 - Computing Strong Components: Algorithm - Graph Search - [DSA 1] By Tim Roughgarden
::2013/09/28::
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17
Dancs Annamari és Tarján Pál - Egy a szívem . egy a párom operett lemez egyveleg
Dancs Annamari és Tarján Pál - Egy a szívem . egy a párom operett lemez egyveleg
::2011/06/05::
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18
Juan Tarjan - Me & the Devil Blues
Juan Tarjan - Me & the Devil Blues
::2011/06/17::
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19
Szent György Napok 2009 - Dancs Annamari és Tarján Pál
Szent György Napok 2009 - Dancs Annamari és Tarján Pál
::2009/04/28::
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20
C felnőtt Jive S.tarján 2013
C felnőtt Jive S.tarján 2013
::2013/09/27::
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21
Dancs Annamari es Tarjan Pal Keposszeallitas
Dancs Annamari es Tarjan Pal Keposszeallitas
::2008/07/20::
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22
Tarján-patak Zagyvapálfalván,Salgótarjánban
Tarján-patak Zagyvapálfalván,Salgótarjánban
::2011/09/10::
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23
Graph Toolkit, Software Development Project (Hasselt University)
Graph Toolkit, Software Development Project (Hasselt University)
::2011/06/14::
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24
Juan Tarjan, Alambre Gonzalez, Poncharelo y Cachin - Love Struck Baby
Juan Tarjan, Alambre Gonzalez, Poncharelo y Cachin - Love Struck Baby
::2009/08/21::
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25
Andromeda Hip-hop Táncstúdió 2009 Tarján
Andromeda Hip-hop Táncstúdió 2009 Tarján
::2009/07/09::
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26
Columbarium Burial Site of Armen Charles Tarjan
Columbarium Burial Site of Armen Charles Tarjan
::2010/04/22::
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27
Some quotes from Robert Harper
Some quotes from Robert Harper
::2013/04/19::
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28
Robert Kahn: A Systems Approach to Managing Distributed Information
Robert Kahn: A Systems Approach to Managing Distributed Information
::2012/08/24::
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29
PageRank, Strongly Connected Components
PageRank, Strongly Connected Components
::2014/04/07::
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30
Gárdos Péter: Uramisten / Peter Gardos: The Philadelphia Attraction (1984)
Gárdos Péter: Uramisten / Peter Gardos: The Philadelphia Attraction (1984)
::2013/01/17::
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31
COVERSHOW -The Fashion Musical, Belvarosi theatre, 2006
COVERSHOW -The Fashion Musical, Belvarosi theatre, 2006
::2010/09/13::
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32
Iskolai praktikák - diákoknak
Iskolai praktikák - diákoknak
::2012/02/21::
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33
Emily
Emily's Robert E.(Latest Version)
::2011/08/14::
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34
Robert E. Lee All Class Mini-Reunion Floore
Robert E. Lee All Class Mini-Reunion Floore's Country Store
::2012/05/06::
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35
2011. Karácsonyi edzés Stephen Robert Nagy vezetésével
2011. Karácsonyi edzés Stephen Robert Nagy vezetésével
::2012/04/08::
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36
HALLOWEEN MUSICAL MADNESS - The musical revue (Incl. The Rocky Horror Show), 2008
HALLOWEEN MUSICAL MADNESS - The musical revue (Incl. The Rocky Horror Show), 2008
::2010/09/13::
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37
The Faculty (3/11) Movie CLIP - Hostile Takeover (1998) HD
The Faculty (3/11) Movie CLIP - Hostile Takeover (1998) HD
::2011/10/26::
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38
Hegyek KirályaTarján, 2013
Hegyek KirályaTarján, 2013
::2013/05/21::
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39
ANNAMARI DANCS feat. DJ ROBERT GEORGESCU - CALLATIS 2009 - LIVE YOUR LIFE (CONCERT) - part. 2
ANNAMARI DANCS feat. DJ ROBERT GEORGESCU - CALLATIS 2009 - LIVE YOUR LIFE (CONCERT) - part. 2
::2009/10/10::
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40
Michael Goodson
Michael Goodson
::2013/02/20::
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41
Dancs Annamari & Dj Robert Georgescu   National Tv
Dancs Annamari & Dj Robert Georgescu National Tv
::2009/05/04::
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42
Show in fata studioului Kiss cu Annamari Dancs si Robert Turcescu
Show in fata studioului Kiss cu Annamari Dancs si Robert Turcescu
::2009/08/12::
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43
Hegyek Királya futóverseny
Hegyek Királya futóverseny
::2012/05/05::
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44
Annamari Dancs ft. Dj. Robert Georgescu - Live your life ( Christmas Version)
Annamari Dancs ft. Dj. Robert Georgescu - Live your life ( Christmas Version)
::2009/12/23::
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45
Bleeding Love ~ Changing Hues (Robert Sunga, Amos, Jessica) Edz Solis, Asher Cacho
Bleeding Love ~ Changing Hues (Robert Sunga, Amos, Jessica) Edz Solis, Asher Cacho
::2009/09/28::
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46
Scott on what he liked best in college
Scott on what he liked best in college
::2014/04/11::
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47
Mányi Sramli
Mányi Sramli
::2013/02/19::
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48
Scott on why he wanted to go to college
Scott on why he wanted to go to college
::2014/04/11::
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49
HHVM Open Source Update - Hack Dev Day
HHVM Open Source Update - Hack Dev Day
::2014/04/10::
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50
How Can Your Business Help Students Develop Marketable Job Skills
How Can Your Business Help Students Develop Marketable Job Skills
::2014/01/27::
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From Wikipedia, the free encyclopedia
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Robert Endre Tarjan
Bob Tarjan.jpg
Born (1948-04-30) April 30, 1948 (age 66)
Pomona, California
Fields Computer Science
Institutions Cornell
Berkeley
Stanford University
New York University
Princeton University
Hewlett-Packard
Alma mater Caltech,
Stanford
Thesis An Efficient Planarity Algorithm (1972)
Known for Algorithms and data structures
Notable awards Turing Award
Nevanlinna Prize (1982)
Paris Kanellakis Award (1999)

Robert Endre Tarjan (born April 30, 1948) is an American mathematician. He is the discoverer of several graph algorithms, including Tarjan's off-line least 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 is also a Senior Fellow at Hewlett-Packard.[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 card punch 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 CS 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.

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

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:

Notes[edit]

  1. ^ "HP Fellows: Robert Endre Tarjan". Hewlett-Packard. Retrieved 2008-01-09. 
  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. ^ http://media.caltech.edu/press_releases/13332

References[edit]

External links[edit]

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