added two method to get documents by name and id in a more easier way
method signature changed in util
mispelingcorrection
mispelingcorrection
added negation param to choose what type negation use
added a param to choose between complement and inversion to handle inversions
refactor and left only adv-adv-adj trigrams due to the others type did not have scientific bases
Method refactoring to choose use or not trigrams
Creation of a method stats of documents collection and some 'util' methods to help with average and standard deviation
created the selection module with classes to define a scenario of experiment and a class the selects ngrams based on this scenario. One of methods of util was refactored based on this creation
ngras matrix turned to a dict and created funcion in transformation that transforms the ngrams dict to polarities dict
tripadvisor exporter refatored based on creation of selection module