Talk:Kosaraju's algorithm

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Confusion

"Aho, Hopcroft and Ullman credit it to an unpublished paper from 1978 by S. Rao Kosaraju" -- but Aho, Hopcroft and Ullman, as referenced in the article, was (apparently) published in 1974... — Matt Crypto 09:24, 16 February 2009 (UTC)[reply]

As far as I know, Kosaraju's algorithm first appeared in print in M. Sharir, "A strong-connectivity algorithm and its application in data flow analysis", Computer and Mathematics with Applications, vol 7 nr 1, pp. 67--72, 1981. Snudehygel (talk) 22:23, 8 May 2009 (UTC)[reply]

The source of confusion appears to be the following statement in Cormen et al. algoritms book (I have the 1990 edition of CLRS at hand). The chapter notes on "Elementary Graph Algorithms" says:

"The algorithm [...] is adapted from Aho, Hopcroft and Ullman [5], who credit it to S.R. Kosaraju and M. Sharir."

In the references section of CLRS, we find the following entry:

[4] Alfred V. Aho, John E. Hopcroft, and Jeffrey D. Ullman. The Design and Analysis of Computer Algorithms. Addison-Wesley 1974.

[5] Alfred V. Aho, John E. Hopcroft, and Jeffrey D. Ullman. Data Structures and Algorithms. Addison-Wesley, 1983.

I would suggest that someone goes to a library and checks what is actually stated in reference [5]. (Sigh. I suppose that errors which cannot be verified with the aid of an internet search engine will actually never be fixed on wikipedia.) 134.176.28.77 (talk) 13:08, 10 August 2009 (UTC)[reply]