LongShortTermMemorynetworks,usuallycalled“LSTMs”,wereintroducedbyHochreiterandSchmiduber.Thesehavewidelybeenusedforspeechrecognition,languagemodeling,sentimentanalysisandtextprediction.BeforegoingdeepintoLSTM,weshouldbrstunderstandtheneedofLSTMwhichcanbeexplainedbythedrawbackofpract