Hi Dhruv, Welcome to Mahout. We do have some code for HMM. I would suggest that you spend some time reading the code, previous discussions on mahout mailing list and of course the Mahout wiki. There could be lots of feature that could be added to the HMM Implementation we have today. Maybe you can think of something interesting?
Robin On Mon, Feb 14, 2011 at 11:43 PM, Dhruv Kumar <[email protected]> wrote: > Hi, > > I'm a graduate student at the University of Massachusetts Amherst in the > Electrical and Computer Engineering Department. This semester, I'm involved > with two semester long course projects (1) Bioinformatics and (2) Online > Social Networks. Although having different application domains, both > courses > have common underlying themes--the problem of managing peta-scale data, > and, > using machine learning for sequence alignment/parameter inference > (Bioinformatics), or, designing better recommender systems (Online Social > Networks). > > Having applied Markov Decision Process (MDP) to the area of CPU Power > Management in the past, I think that modeling recommender systems as a > sequential decision problem is a very interesting application of MDP [1]. > Hidden Markov Models are commonly used in Gene Prediction/Sequence > Alignment > and can also be applied to Protein Structure determination problems. > > It is clear to me that Mahout has tremendous potential for application to > diverse range of problems in the near future which involve Markov Models. > However, the support for HMMs/MDPs is marginal (non-existent?) at the > moment > in Mahout. > > I would like to help in the development of Mahout and extend the framework, > enabling it to handle HMM and or MDP. As I will be extending Mahout for the > projects, I was wondering if there is any chance that my work could be used > as a proposal to apply for the Google Summer of Code 2011 and build on the > three months of development here at UMass. > > Any guidance in this regard is much appreciated. > > Thank you. > > Dhruv Kumar > Electrical and Computer Engineering > University of Massachusetts Amherst > Amherst MA 01002 > USA. > > > [1] G. Shani et al. "An MDP-based recommender system." Journal of Machine > Learning Research 2005. >
