check a character is punctuation or not @param c @return 'N' if not punctuation

@param singleTerm @param keySet @return

Normalises the plural forms @param termDoc @return {@link TaggedTermsContainer}

Normalizing the new line spaces in input text @param text @return

A set of post tag process taken place here @param termDoc @return {@link TermDocument}

remove apostrophes @param term @param wordLength @return term without apostrophes

Remove Date like patterns from the extracted set @param filterdTerms @return

Remove duplicate single words which already in another multi word keyword @param filteredTerms @return

remove stopwords remove apostrophes @param filteredTerms @return term with no stopwords and punctuation that we don't want

removing all unwanted characters @param term @return term without multi-spaces

set extracted terms @param extractedTerms

set final filtered terms @param filteredTerms

set normalized test @param normalizedText

Set terms @param terms

Tokenizing the text using regex @param text @return

Verify that noun at sentence start is truly proper. @param termDoc @return {@link TaggedTermsContainer}

Default configuration singleStrenght =3 and noLimit = 2 @param singleStrenght @param noLimit

get final filteres terms @return