Question: 10.7 Bipartite ranking. Suppose that we use a binary classi er for ranking in the bipartite setting. Prove that if the error of the binary

10.7 Bipartite ranking. Suppose that we use a binary classier for ranking in the bipartite setting. Prove that if the error of the binary classier is , then that of the ranking it induces is also at most . Show that the converse does not hold.

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