# References [1] Vovk, V., Gammerman, A. and Shafer, G., 2022. Algorithmic learning in a random world. 2nd edition. Springer [Link](https://link.springer.com/book/10.1007/978-3-031-06649-8) [2] Papadopoulos, H., Proedrou, K., Vovk, V. and Gammerman, A., 2002. Inductive confidence machines for regression. European Conference on Machine Learning, pp. 345-356. [Link](https://link.springer.com/chapter/10.1007/3-540-36755-1_29) [3] Johansson, U., Boström, H., Löfström, T. and Linusson, H., 2014. Regression conformal prediction with random forests. Machine learning, 97(1-2), pp. 155-176. [Link](https://link.springer.com/article/10.1007/s10994-014-5453-0) [4] Boström, H., Linusson, H., Löfström, T. and Johansson, U., 2017. Accelerating difficulty estimation for conformal regression forests. Annals of Mathematics and Artificial Intelligence, 81(1-2), pp.125-144. [Link](https://link.springer.com/article/10.1007/s10472-017-9539-9) [5] Boström, H. and Johansson, U., 2020. Mondrian conformal regressors. In Conformal and Probabilistic Prediction and Applications. PMLR, 128, pp. 114-133. [Link](https://proceedings.mlr.press/v128/bostrom20a.html) [6] Vovk, V., Petej, I., Nouretdinov, I., Manokhin, V. and Gammerman, A., 2020. Computationally efficient versions of conformal predictive distributions. Neurocomputing, 397, pp.292-308. [Link](https://www.aminer.org/pub/5e09aac9df1a9c0c416c9b70/computationally-efficient-versions-of-conformal-predictive-distributions) [7] Boström, H., Johansson, U. and Löfström, T., 2021. Mondrian conformal predictive distributions. In Conformal and Probabilistic Prediction and Applications. PMLR, 152, pp. 24-38. [Link](https://proceedings.mlr.press/v152/bostrom21a.html) [8] Vovk, V., 2022. Universal predictive systems. Pattern Recognition. 126: pp. 108536 [Link](https://dl.acm.org/doi/abs/10.1016/j.patcog.2022.108536)