... furtheranalysis. The user can customize vocabulary dif-ficulty predictions by selecting the desired gradeor theme. Then, the text is analyzed and, in afew seconds, it returns the results of the ... classification and c)analysis ofreading difficulty. Search results and analyses arereturned within a few seconds to a maximum of aminute or two depending on the speed of the con-nection. Read-X ... component to the Read-X architecture, which is designed to pre-dict unknown vocabulary given the reader’s ed-ucational background or familiarity with one (ormore) of the basic themes. The...