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Talk:Submodular set function

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This is an old revision of this page, as edited by Anonash (talk | contribs) at 05:54, 10 February 2012. The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Why would a submodular function be necessarily a subadditive function? I believe it requires nonnegativity. Peleg (talk) 15:16, 17 December 2011 (UTC)[reply]

Agreed. Somehow this point skipped my mind, since most submodular functions considered are nonnegative. But I have edited it to reflect this. Anonash (talk) 05:54, 10 February 2012 (UTC)[reply]
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