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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
CACM August 2014 Feature Video Efficient Maximum Flow Algorithms
CACM August 2014 Feature Video Efficient Maximum Flow Algorithms
::2014/08/07::
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4
7.8 - Path Compression Tarjan
7.8 - Path Compression Tarjan's Analysis 1 - Advanced Union-Find - [DSA 2] By Tim Roughgarden
::2013/09/30::
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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
Tarjan
Tarjan
::2014/03/01::
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11
05. Tarján Pál - Let It Be
05. Tarján Pál - Let It Be
::2012/10/18::
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12
tarjan
tarjan
::2012/08/04::
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13
rishabh tarjan
rishabh tarjan
::2012/06/25::
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14
Rambo Tarján Balázs közjátéka Csopak Tihany Balaton 2014 Fiat 125p
Rambo Tarján Balázs közjátéka Csopak Tihany Balaton 2014 Fiat 125p
::2014/07/27::
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15
tarjan
tarjan
::2012/03/28::
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16
Zenés ébresztő Tarján 2012. máj. 1.
Zenés ébresztő Tarján 2012. máj. 1.
::2012/05/06::
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17
Houson and Zach Interview Tarjan
Houson and Zach Interview Tarjan
::2011/11/02::
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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
GRE Computer Science Question 41
GRE Computer Science Question 41
::2012/04/03::
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21
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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22
C felnőtt Jive S.tarján 2013
C felnőtt Jive S.tarján 2013
::2013/09/27::
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23
2010.08.15 - Tarján (Hradištska kapela)
2010.08.15 - Tarján (Hradištska kapela)
::2010/08/17::
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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
HHVM Open Source Update - Hack Dev Day
HHVM Open Source Update - Hack Dev Day
::2014/04/09::
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28
Some quotes from Robert Harper
Some quotes from Robert Harper
::2013/04/19::
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29
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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30
Topic 14 F DFS Applications TS SCC
Topic 14 F DFS Applications TS SCC
::2013/10/24::
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31
Robert with Zach and Maike
Robert with Zach and Maike
::2013/06/18::
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32
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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33
Emily
Emily's Robert E.(Latest Version)
::2011/08/13::
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34
COVERSHOW -The Fashion Musical, Belvarosi theatre, 2006
COVERSHOW -The Fashion Musical, Belvarosi theatre, 2006
::2010/09/13::
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35
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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36
2011. Karácsonyi edzés Stephen Robert Nagy vezetésével
2011. Karácsonyi edzés Stephen Robert Nagy vezetésével
::2012/04/08::
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37
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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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
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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41
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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42
Michael Goodson
Michael Goodson
::2013/02/19::
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43
Dancs Annamari & Dj Robert Georgescu   National Tv
Dancs Annamari & Dj Robert Georgescu National Tv
::2009/05/04::
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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
Hegyek Királya futóverseny
Hegyek Királya futóverseny
::2012/05/05::
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46
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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47
Nu Skin EMEA Convention 2012
Nu Skin EMEA Convention 2012
::2012/11/10::
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48
Scott on what he liked best in college
Scott on what he liked best in college
::2014/04/11::
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49
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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Das Kinderzimmer der Dynastie Rouge I
Das Kinderzimmer der Dynastie Rouge I
::2014/06/11::
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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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