Recommendation

Has Potential

Link

http://jhave.org/learner/graphs/Dijkstra/dijkstra.php

Delivery Method

Java Web Start

License

CreativeCommons

Language

English

Author

Richard Teviotdale; Tom Naps

Institution

University of Wisconsin - Oshkosh

Project

JHAVÉ

RelationshipToProject

PartOfProject

Works

Yes

Description

Visualization of Djikstra's single-source shortest paths algorithm. Includes dynamically highlighted pseudo code. Associated HTML page contains an algorithm description, pseudo code, and example trace, and discussion of efficiency analysis.

Evaluation

The AV is set up as a series of "slides" in one pane, and pseudocode in the adjacent pane. As the user steps through the "slides", the associated pseudocode is highlighted. Occasional questions pop up for the user to answer. In addition to coloration for the graph as the algorithm progresses, there is an array showing the algorithm's currently computed shortest path for each node.

ActivityLevel

Step Control; Questions; Canned Data

GoodFor

Self Study; Lab Exercise

Screenshots

Videos

References

HowToUse

Clicking on the link above will take you to a login page for Jhave. If you do not want to create an account at jhave.org, use anonymous@anonymous.com as your user name and anonymous as your password when you are asked to login. You will then be taken to the Jhave page for Dijkstra's algorithm. Most of this is a tutorial on how it works. At the bottom are links to the AV itself (you can do it with a built-in quiz system on or off). The first time you try to run any Jhave exercise, you will have to download the Jhave webstart application. This should happen automatically when you click the link. (You might need to install Java WebStart if it is not on your machine.) Once you download the Jhave application, the AV should start automatically. You can then step through the AV by repeatedly clicking the right arrow button. Occasionally, you will be given a multiple-choice or short-answer question to answer.

First Visited

2008-07-08

Last Visited

2008-07-10

Last Updated

2008-07-01

Topic

SingleSourceShortestPaths

Community

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