Peer-reviewed publications:
Zhu, R., and Kosorok, M. R. (2012). Recursively Imputed Survival Trees. Journal of the American Statistical Association 107:331-340.
Zhu, R., Zeng, D., and Kosorok, M. R. (2012). Reinforcement Learning Trees. Submitted to The Annals of Statistics. [pdf]
Holdsworth La, E., Zhu, R., Hassmiller Lich, K., Ellis, A. R., Swartz, M., Kosorok, M. R., Morrissey, J. P. (2013). The impact of a state psychiatric hospital waitlist policy on length of stay and time to readmission. submitted to Psychiatric Services.
Software:
Temporary R-code: Example & ReadMe RIST
R Package: will be integrated with RLT
R package for Reinforcement Learning Trees (RLT, require R3.0+): Windows binary: RLT_1.0.zip; Package source: RLT_1.0.tar.gz
You can find this simple document which explains all the parameters, and this example file.
I'm still working on this, and there are a lot to be done. If you have any question or want to provide any feedback, please send me email.