1. Aharon, M., Elad, M., Bruckstein, A.: K-svd: an algorithm for designing overcomplete dictionaries for sparse representation. IEEE Trans. Signal Process. 54(11), 4311–4322 (2006)
2. Altimiras, J.: Understanding autonomic sympathovagal balance from short-term heart rate variations. Are we analyzing noise? Comp. Biochem. Physiol. A: Mol. Integr. Physiol. 124, 447–460 (1999)
3. Blum, A., Mitchell, T.: Combining labeled and unlabeled data with co-training. In: COLT: Proceedings of the Workshop on Computational Learning Theory. Morgan Kaufmann Publishers (1998)
4. Brox, T., Bruhn, A., Papenberg, N., Weickert, J.: High accuracy optical flow estimation based on a theory for warping. In: Pajdla, T., Matas, J.G. (eds.) ECCV 2004, Part IV. LNCS, vol. 3024, pp. 25–36. Springer, Heidelberg (2004)
5. Burkhardt, F., Paeschke, A., Rolfes, M., Sendlmeier, W.F., Weiss, B.: A database of german emotional speech. In: INTERSPEECH’05, pp. 1517–1520 (2005)