Jyrki Kivinen, Manfred K. Warmuth. Relative Loss Bounds for Multidimensional Regression Problems. In Michael I. Jordan, Michael J. Kearns, Sara A. Solla, editors, Advances in Neural Information Processing Systems 10, [NIPS Conference, Denver, Colorado, USA, 1997]. pages 287-293, The MIT Press, 1997.
Abstract is missing.