Hi,
I am in my 3rd year of PhD in NLP (working on SA) and I am well versed with Machine Learning. I have already managed to implement an ensemble of classifiers for SA viz. A rule Based Classifier, and Statistical classifiers using Naive Bayes, SVMs (Multikernel and Multiclass) and Maximum Entropy techniques. I have taken Movie Review and Twitter datasets for training, tuning and testing my algorithms. The feature I have taken are N-gram features (word,stems and lemmas), Sentiment flips, Scores from SentiWordnet and several other linguistic features (Like presence of certain kind of adjectives) etc. The whole framework has been implemented using Python, NLTK and Scikit-learn. The accuracies reported are in the order of 80%-90% (can be improved). The framework is capable enough to take data from domains other than Movie reviews and twitters.
I can re-implement the systems in JAVA if you want. I do not need more than 60 days for this work and I am confident about that.
Finally, I am new to FL and my profile is not complete because I do not want to waste my time going through FL exams. But,I feel I have the appropriate experience/knowledge for this job. Please revert if you feel so.
Best,Abhijit