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Topic: Dijkstra


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In the News (Sun 20 Dec 09)

  
  E.W.Dijkstra Archive: Home page
In addition, Dijkstra was intensely interested in teaching, and in the relationships between academic computing science and the software industry.
An interview with Dijkstra (Spanish translation here) was conducted in 1985 by Rogier F. van Vlissingen, who has also written a personal reflection on "Dijkstra's sense of what computer science and programming are and what they aren't".
Dijkstra's death in August 2002 was marked by many obituaries and memorials, including the Computer Sciences department's memorial celebration.
www.cs.utexas.edu /users/EWD   (753 words)

  
 Jorrit Dijkstra
Jorrit Dijkstra (alto sax, lyricon), Greg Kelley (trumpet), Ernst Karel (analog synth), Eric Rosenthal (percussion), + Onda: Ken Ueno (voice), Hillary Zipper (violin), Tim Feeney (percussion)
Nov 30: Skycap Festival, Lily Pad Cambridge MA Jorrit Dijkstra (alto sax, lyricon), Ted Reichman (accordion), Eric Rosenthal (percussion)
Jorrit Dijkstra (alto sax, lyricon), James Falzone (clarinet), Jeb Bishop (trombone), Fred Lonberg-Holm (cello), Jason Roebke (bass), Frank Rosaly (drums)
www.jorritdijkstra.com   (195 words)

  
 Tate Modern | Past Exhibitions | Cruel and Tender
Dijkstra concentrates on single portraits, and usually works in series, looking at groups such as adolescents, clubbers, and soldiers.
Dijkstra draws a parallel between the two groups of photographs.
Both bullfighters and mothers are pictured after an exhausting and potentially life-threatening experience, relating to society’s deepest-held ideas of masculinity and femininity.
www.tate.org.uk /modern/exhibitions/cruelandtender/dijkstra.htm   (164 words)

  
 Dijkstra Algorithm - The Code Project - C++ / MFC
I used an ActiveX control (that it is actually the Dijkstra solver) and a container application that use the functions.
Djikstra's algorithm (named after its discover, E.W. Dijkstra) solves the problem of finding the shortest path from a point in a graph (the source) to a destination.
Dijkstra's algorithm keeps two sets of vertices: S the set of vertices whose shortest paths from the source have already been determined and V-S the remaining vertices.
www.codeproject.com /cpp/GcDijkstra.asp   (741 words)

  
  Atze / Web Home
Atze Dijkstra, Gerrit van den Geest, Bastiaan Heeren and Doaitse Swierstra, submitted to ICFP 2007.
Atze Dijkstra, Jeroen Fokker and Doaitse Swierstra, submitted to ICFP 2007.
Atze Dijkstra and Doaitse Swierstra, rejected by POPL 2006.
www.computerscience.nl /wiki/Atze/WebHome   (230 words)

  
 ACM: Fellows Award / E. W. Dijkstra
Dijkstra was known to be a fan of ALGOL 60, and worked on the team that implemented the first compiler for that language.
Dijkstra objected that the resulting proofs are long and cumbersome, and that the proof gives no insight as to how the program was developed.
Dijkstra was known for his forthright opinions on programming, and for his habit of carefully composing manuscripts with his fountain pen.
awards.acm.org /citation.cfm?id=4860551&srt=all&aw=140&ao=AMTURING   (602 words)

  
 Dijkstra's algorithm (Inform 7) - LiteratePrograms
Dijkstra's algorithm is a graph algorithm that simultaneously finds the shortest path from a single vertex in a weighted graph to all other vertices in the graph, called the single-source shortest path problem.
To initialize Dijkstra's algorithm from (n - a node): clear the state; now n is examined; change the total distance of n to 0.
To continue Dijkstra's algorithm: let n be the nearest examined node; now n is found; repeat with m running through the nodes contacting n begin; examine m from n; end repeat.
en.literateprograms.org /Dijkstra's_algorithm_(Inform_7)   (1166 words)

  
 Jorrit Dijkstra
Dijkstra's attachment to the Lyricon may be one of his few concessions to the overt wackiness of the Dutch scene, but those craving a dose of Amsterdam anarchy can attend Monday night's Zeitgeist performance with the hyperkinetic Blonk, which will incorporate both the Lyricon and electronics.
Dijkstra, though, is equally at home in the world of the avant-garde, as evidenced by his solo album, “30 micro-stems.” Unlike so many solo horn albums, which elevate virtuosity over musicality, “micro-stems” is a pleasure to hear.
Dijkstra is also familiar with the extended technique of his instrument, which he employs only in the service of his compositional goals and never as an end in itself.
www.jorritdijkstra.com /recensiesjdsolo.html   (5097 words)

  
 Edgser W. Djkstra
Edsger Wybe Dijkstra was born in Rotterdam, Netherlands in 1930.
Dijkstra continued to work at the Mathematical Centre until he accepted a job as a research fellow for Burroughs Corporation, in the United States, in the early 1970s.
Dijkstra is often written as Dykstra, 'ij' is a combination of letters in the Dutch language sounding like the 'i' in 'dike'.
www.thocp.net /biographies/dijkstra_edsger.htm   (881 words)

  
 FOCUS: Rineke Dijkstra - Art Institute of Chicago - Absolutearts.com
Dijkstras images of adolescent bathers - which she began photographing on beaches in the United States and Eastern Europe in 1992 - have received considerable critical acclaim.
Dijkstras color photographic portraits of children and adolescents - alone and in small groups - are characterized by a remarkable formal classicism, psychological depth, and conceptual rigor.
FOCUS: Rineke Dijkstra was organized by The Art Institute of Chicago and is supported by the HGIS-Culture fund of the Dutch Ministries for Foreign Affairs and Education, Culture, and Science, The Netherland-America Foundation, and ING Barings.
www.absolutearts.com /artsnews/2001/04/11/28374.html   (645 words)

  
 Computer science pioneer Dijkstra dies | CNET News.com
Dijkstra was on the committee that created Algol, the first block-structured programming language and one that introduced many ideas behind Pascal, Basic and C. His practical skills, especially in discerning and coding algorithms, were also remarkable--he wrote the first Algol 60 compiler.
Dijkstra and his wife also enjoyed exploring U.S. state and national parks in their Volkswagen camper van, called the Touring Machine.
Dijkstra was the 1972 recipient of the Association for Computing Machinery's Turing Award, often viewed as the Nobel Prize for computing.
news.com.com /2100-1001-949023.html   (525 words)

  
 LtU Classic Archives
Dijkstra is justly famous for work on algorithms (especially graph algorithms), concurrency and synchronization (including distributed algorithms), and operating systems.
Dijkstra was not interested only in algorithms in the abstract, and gave a lot of attention to the construction of working software.
Dijkstra remarked: 'We use the name "parameters" for all the information that is presented to the subroutine when it is called in by the main program; function arguments, if any, are therefore parameters.
lambda-the-ultimate.org /classic/message3978.html   (626 words)

  
 Dijkstra
To appreciate the role that Dijkstra's Algorithm plays in the analysis and solution of shortest path problems and where it fits into the OR/MS curriculum, it is instructive and constructive to distinguish between the various types of algorithms available for the solution of this important generic problem.
We note in passing that the reason that Dijkstra's Algorithm is regarded as a Greedy method lies in the rule it deploys, (15), to select the next city to be processed: the next city to be processed is the one that is nearest to city 1 among all cities that are yet to be processed.
The similarities between the two problems and the respective algorithms proposed by Dijkstra for their solution and especially Dijkstra's explicit reference to Kruskal's Algorithm (Kruskal [1956]) strongly suggest that Dijkstra regarded his proposed algorithm for the shortest path problem as a modification of Kruskal's Algorithm for the minimum spanning tree problem.
www.ifors.ms.unimelb.edu.au /tutorial/dijkstra_new/index.html   (12048 words)

  
 Dijkstra's Algorithm Animated
Dijkstra's Algorithm solves the single-source shortest path problem in weighted graphs.
Here we show it running on a planar graph whose edge weights are proportional to the distance between the vertices in the drawing -- thus the weight of an edge is equal to its visible length.
Dijkstra's algorithm starts from a source node, and in each iteration adds another vertex to the shortest-path spanning tree.
www.cs.sunysb.edu /~skiena/combinatorica/animations/dijkstra.html   (162 words)

  
 Memorial Resolution - Edsger Wybe Dijkstra
Dijkstra formulated and solved the Shortest Path problem for a demonstration at the official inauguration of the ARMAC computer in 1956, but —because of the absence of journals dedicated to automatic computing—; did not publish the result until 1959.
Dijkstra appreciated the importance of recursion, and he was probably the first to introduce the notion of a “stack” for translating recursive programs.
Dijkstra was the first to observe that non-determinacy is central in computations that involve asynchronous interacting components; two runs could produce significantly different results.
www.utexas.edu /faculty/council/2002-2003/memorials/Dijkstra/dijkstra.html   (7495 words)

  
 Arjan Dijkstra - School of Applied Geology
Dijkstra, A.H. Barth, M.R. Drury, P.R.D. Mason, & R.L.M. Vissers, 2003.
Diffuse porous melt flow and melt-rock reaction in the mantle lithosphere at a slow-spreading ridge: A structural petrology and LA-ICP-MS study of the Othris Peridotite Massif (Greece).
Dijkstra, A.H. Deformation and melt in natural mantle rocks: The Hilti Massif (Oman) and the Othris Massif (Greece), Ph.D. thesis, Universiteit Utrecht, The Netherlands, 164 pp.
members.westnet.com.au /bhulscher/ArjanDijkstra.htm   (575 words)

  
 Shortest Paths Graph Algorithms > Dijkstra's Algorithm   (Site not responding. Last check: )
The constructor is an implementation of Dijkstra's algorithm that uses a priority queue of vertices (in order of their distance from the source) to compute an SPT.
The name Dijkstra's algorithm is commonly used to refer both to the abstract method of building an SPT by adding vertices in order of their distance from the source and to its implementation as the V
Dijkstra's algorithm gives us another realization of BFS: When all edge weights are 1, it visits vertices in order of the number of edges on the shortest path to the start vertex.
www.informit.com /articles/article.asp?p=169575&seqNum=3   (2558 words)

  
 Dijkstra's Algorithm
Dijkstra's algorithm is perhaps the earliest and also one of the most efficient algorithm for the problem.
Although Dijkstra's algorithm can solve route finding problems alone, but in a complex road network with thousands of roads and cross points it will take a long time to find the shortest path for the algorithm.
The Dijkstra's algorithm can also produce the solutions that are not suitable for human users as the shortest path may use many minor roads as part of the solution.
www.acm.org /conferences/sac/sac2000/Proceed/FinalPapers/DB-05/node3.html   (294 words)

  
 Marian Goodman Gallery: Rineke Dijkstra
Marian Goodman Gallery is delighted to present an exhibition of new work by Dutch artist Rineke Dijkstra.
I am interested in the paradox between identity and uniformity, in the power and the vulnerability of each individual and each group.
Rineke Dijkstra was born in Sittard, The Netherlands, in 1959.
www.artnet.com /ag/fineartthumbnails.asp?gid=460&cid=54564   (372 words)

  
 Classic Book Review: Dahl, Dijkstra, and Hoare: Structured Programming
One snapshot can only portray a tiny bit of their thinking, yet they were clearly grappling with the great issues of the day, and - surprise, surprise - the issues remain.
Dijkstra also discusses 'Program Families', that we more commonly call 'reuse' in software, and 'product-line engineering' otherwise; on understanding programs, that we perhaps tend to call 'maintainability', and other topics to do with program correctness, that we might group under 'formal methods'.
Tony Hoare looks at the need for abstraction and high-level languages, data types and data structuring (which led to today's Objects that group together data and the allowed operations on those data), and the way that the choice of representations influences data manipulation.
i.f.alexander.users.btopenworld.com /reviews/dijkstra.htm   (762 words)

  
 LWN: Edsger W. Dijkstra
Dijkstra was the source of much wisdom in Computer Science, and we are all in his debt.
The competent programmer is fully aware of the strictly lmited size of his own skull; therefore he approaches the programming task in full humility, and among other things he avoids clever tricks like the plague.
As I recall, Dr. Dijkstra gave his lecture near the end of our semester, by which time we had been heavily involved in something resembling a team development evironment for a few months..
lwn.net /Articles/6993   (770 words)

  
 About Dijkstra
Dijkstra seemed to believe in the all-mightiness of syntax.
Here I have arrived at the point I am about to make: Dijkstra seem to have held the view that there is a middle ground, where precise syntax of a document can be coupled with enjoyable style.
The quoted documents, written in Dijkstra's clean and neat hand-writing, work out a well known fact: every prime of the form 4k+1 can be uniquely decomposed as the sum of two squares.
www.cs.rutgers.edu /~szegedy/dijkstra.html   (1405 words)

  
 ASPN : Python Cookbook : Dijkstra's algorithm for shortest paths   (Site not responding. Last check: )
Dijkstra's algorithm is only guaranteed to work correctly when all edge lengths are positive.
This code does not verify this property for all edges (only the edges seen before the end vertex is reached), but will correctly compute shortest paths even for some graphs with negative edges, and will raise an exception if it discovers that a negative edge has caused it to make a mistake.
I tested running times on a Pentium 3, and for complete graphs of ~2000 vertices, this modified Dijkstra function is several times slower than Eppstein's function, and for sparse graphs with ~50000 vertices and ~50000*3 edges, the modified Dijkstra function is several times faster than Eppstein's function.
aspn.activestate.com /ASPN/Cookbook/Python/Recipe/119466   (665 words)

  
 Amazon.com: Rineke Dijkstra: Books: Rineke Dijkstra   (Site not responding. Last check: )
With influences as diverse as August Sander and Diane Arbus, Dijkstra's color portraits of youth on the beach, at school, or in the storage closet of a dance club resound with the awkwardness of the subjects' acute self-awareness of budding personality.
Artist Rineke Dijkstra has appropriated the formal qualities of the studio portrait from the early part of this century--taking the convention of the full length, frontal and centrally composed portrait to its logical limits, she is able to penetrate to the core of her subjects.
For Dijkstra's best known series of photographs--an extensive series of beach portraits of teenagers and children taken on beaches all over the world between 1992 and 1996--the artist sought out a certain introversion or unease in her subjects, capturing with rare perfection the human condition of feeling not-at-home in the world.
www.amazon.com /Rineke-Dijkstra/dp/3775710159   (778 words)

  
 Was Dijkstra Obnoxious
Evidence that Dijkstra was widely acknowledged as obnoxious (from http://www.cs.rutgers.edu/~szegedy/dijkstra.html, the first of 298 google hits on "+Edsger +Dijkstra +obnoxious"):
I personally am very curious to know if Dijkstra was as unpleasant in person as he is in prose, and I resent being told that I shouldn't have this curiosity.
I expect that learning about Dijkstra's personal behavior will shed valuable light on something, but I don't know exactly what yet, and I don't think I should be required to know in advance where it will lead.
c2.com /cgi/wiki?WasDijkstraObnoxious   (963 words)

  
 Edsger Dijkstra: RIP | The Register
Dijkstra described how he entered the field, before there was a recognizable field to enter:-
In his love letter to the genius of the Netherlands, Brilliant Orange, David Winner cites the Dutch sculptor Jeroen Henneman explaining the simplicity and elegance of a match-winning Bergkamp pass: "One moment the pitch is crowded and narrow.
Edsger Dijkstra, who devised a single source Shortest Path Algorithm [more][animated applet], would have appreciated that.
www.theregister.co.uk /2002/08/08/edsger_dijkstra_rip   (439 words)

  
 Amazon.com: Rineke Dijkstra: Portraits: Books: Rineke Dijkstra   (Site not responding. Last check: )
Dijkstra often deals with the development of personality as one moves from adolescence to adulthood, or through a life-changing or potentially threatening experience such as childbirth, or a bullfight.
This afternoon I saw an exhibition of 30-40 of Rineke Dijkstra's portraits at the Stedlijk museum in Amsterdam, and I was very affected by it.
Most often it is found in the subtlest of details in Dijkstra's photos, or between the photos as montage effect surfaces while moving through one of her series.
www.amazon.com /Rineke-Dijkstra-Portraits/dp/1933045183   (1095 words)

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