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.

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 ).

Tarjan was also elected an ACM Fellow in 1994.

" Along with his work with Tarjan on planar graphs he is also known for the Hopcroft – Karp algorithm for finding matchings in bipartite graphs.

Whereas efficient exact algorithms have been found for the signed sorting by reversals see Shamir, Robert Tarjan | Tarjan, 1997, the problem of sorting by reversals has been proven to be hard even to approximate to within certain constant factor Marek Karpinski | Karpinski, 1999, and also proven to be approximable in polynomial time to within the approximation factor 1. 375 Marek Karpinski | Karpinski, Hannenhalli, 2002.

Fibonacci heaps were developed by Michael L. Fredman and Robert E. Tarjan in 1984 and first published in a scientific journal in 1987.

Many other researchers developed this concept ( A. Seznec, M. Monchiero, D. Tarjan & K. Skadron, V. Desmet, Akkary et al., K. Aasaraai, Michael Black, etc.

Tarjan has designed many efficient algorithms and data structures for solving problems in a wide variety of application areas.

Tarjan is known for his pioneering work on graph theory algorithms and data structures.

Daniel Sleator, Robert Tarjan and William Thurston showed that the rotation distance between any two n-node trees ( for n ≥ 11 ) is at most 2n − 6, and that infinitely many pairs of trees are this far apart.

However, the technique was first formally introduced by Robert Tarjan in his paper Amortized Computational Complexity, which addressed the need for a more useful form of analysis than the common probabilistic methods used.

This can be emulated in practice with the Least Recently Used policy, which is shown to be within a small constant factor of the offline optimal replacement strategy ( Frigo et al., 1999, Sleator and Tarjan, 1985 ).

Sarnak and Tarjan managed to use this idea to reduce the storage space to O ( n ), while maintaining the O ( log n ) query time.

A worst-case linear algorithm for the general case of selecting the kth largest element was published by Blum, Floyd, Pratt, Rivest and Tarjan in their 1973 paper " Time bounds for selection ", sometimes called BFPRT after the last names of the authors.

Along with Blum, Floyd, Rivest, and Tarjan, he described the first worst-case optimal selection algorithm.

The splay tree was invented by Daniel Dominic Sleator and Robert Endre Tarjan in 1985.

Robert Endre Tarjan ( born April 30, 1948 ) is an American computer scientist.

As a child, Tarjan read a lot of science fiction, and wanted to be an astronomer.

While he was in high school, Tarjan got a job, where he worked IBM card punch collators.

Tarjan obtained a Bachelor's degree in mathematics from the California Institute of Technology in 1969.

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.

Tarjan has been teaching at Princeton University since 1985.

Tarjan received the Turing Award jointly with John Hopcroft in 1986.

* Mathematics Genealogy Project entry for Robert Endre Tarjan.

He discovered amortized analysis and he invented many data structures with Robert Tarjan, such as splay trees, link / cut trees, and skew heaps.

A faster randomized minimum spanning tree algorithm based in part on Borůvka's algorithm due to Karger, Klein, and Tarjan runs in expected time.

The lowest common ancestor of two nodes d and e in a rooted tree T is the node g that is an ancestor of both d and e and that has the greatest depth in T. It is named after Robert Tarjan, who discovered the technique in 1979.

He received the Turing Award – the most prestigious award in the field and often recognized as the " Nobel Prize of computing ", – jointly with Robert Tarjan in 1986.

* Enemy ( band ), an American band fronted by guitarist and vocalist Troy Van Leeuwen

George Herman Van Leeuwen was instrumental in securing the land from the federal government and acted as the President of the Board of Directors.

* Van Leeuwen, David.

* Troy Van Leeuwen – rhythm guitars ( 1999 – 2002 )

* Troy Van Leeuwen − guitar ( on " The Package ", " Vanishing " and " Gravity ")

Notable writers include Norman Fairclough, Michał Krzyżanowski, Paul Chilton, Teun A. van Dijk, Ruth Wodak, Ernesto Laclau, Phil Graham, Theo Van Leeuwen, Siegfried Jäger, Christina Schäffner, James Paul Gee, Roger Fowler, Gunther Kress, Mary Talbot, Lilie Chouliaraki, Thomas Huckin, and Bob Hodge.

In 2005, he wrote and recorded music for the video game Jak X: Combat Racing, which also features remixes of Billy's songs by Danny Lohner and Dean Menta, and musicians Josh Freese and Troy Van Leeuwen of Queens of the Stone Age, Atom Willard of Angels And Airwaves, Joey Castillo of Queens of the Stone Age, ex-A Perfect Circle bassist Paz Lenchantin, and Wes Borland of Limp Bizkit, also worked on the Guns N ' Roses album Chinese Democracy, specifically the song " There Was A Time ".

At the same time a parastratotype was selected in the Amsterdam glacial basin in the Amsterdam-Terminal borehole and was the subject of a multidisciplinary investigation ( Van Leeuwen, et al., 2000 ).

* Van Leeuwen, R. J., Beets, D., Bosch, J. H. A., Burger, A. W., Cleveringa, P., van Harten, D., Herngreen, G. F. W., Langereis, C. G., Meijer, T., Pouwer, R., de Wolf, H., 2000.

Guitarist Troy Van Leeuwen, a friend and former bandmate of Scott's, joined Failure around the time of the album's release.

Troy Van Leeuwen first resurfaced in the original lineup of A Perfect Circle, appearing on their debut album, Mer De Noms ( 2000 ), and on the subsequent tour.

During the sessions for APC's second album, Van Leeuwen was extended an invitation to join Queens of the Stone Age, which he accepted ; he does appear on three tracks on the second APC album, Thirteenth Step ( 2003 ), but the included cover of Failure's " The Nurse Who Loved Me " is not one of them.

Also, during this time, Van Leeuwen assembled the band Enemy, a vehicle in which he is the frontman and guitarist ; their debut album, Hooray for Dark Matter, was released in October 2005.

Lenchantin joined Billy Howerdel, Josh Freese, Troy Van Leeuwen, and Maynard James Keenan in the band A Perfect Circle.

* Troy Van Leeuwen performed backing vocals on Heart On as well as guitar and backing vocals on several live performances.

* Digital mastering: Dick Van Leeuwen

In early 2003, A Perfect Circle's official Web site announced that Renholder would be replacing Troy Van Leeuwen as the band's second guitarist.

However recent calculations in the optical V band between 500 — 600 nanometers ( nm ) by Floor Van Leeuwen in 2007 produced a new measurement for both stars, 2. 4107 for Schedar and 2. 3579 for Caph, suggesting that Caph ranks as the brightest in the constellation.

The second section of the video is of Homme, Oliveri, Troy Van Leeuwen and Dave Grohl performing the song against a black background.

Van Leeuwen used " The Banjo Song ", an arrangement of " Oh!

In 2012, in a Dutch episode of the tv-programme Classic Recordings about Shocking Blue's album At home, with a rare interview with guitar player Robbie van Leeuwen and clips of Nirvana's live performance of the song in Paradiso, Amsterdam, Shocking Blue's Klaasje van der Wal was proud of the fact that Novaselic once called him a bass god in a blog, while it was said that Van Leeuwen was pointed to the availability of the Nirvana album during a visit to Hilversum, The Netherlands.

Troy Dean Van Leeuwen ( born January 5, 1970 in Los Angeles, California ) is an American musician and producer.

Van Leeuwen began playing music at young age and started playing guitar at age 13.