Solving Java.lang.NoClassDefFoundError in Maven

Most developers find this error when they run executables in the terminal. Commonly these types of errors don't occur in Integrated Development Environments (IDE). NoClassDefFoundError in Java comes when Java Virtual Machine is not able to find a particular class at runtime which was available during compile time.

Converting HTK Binary MFCC values in to ASCII MFCC

HTK is a Open Source Toolkit for Hidden Markov models developed by Cambridge university . mostly people use this tool kit for speech recognition and speech synthesis purposes.

Testing Open NLP Name Entity Recognizer model using java

First you have to train a NER model to test or you can directly download existing models from this link
Please refer my previous blog post on training a model.

Training Name Entity Recognizer model using Open NLP

Name Entity Recognizer means it extract some Name Entities like ( Person , Location , Traffic Level ) tags from sentences automatically. 
First you have to download Open NLP