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readability metrics of children’s e-books. cpsc 689 digital libraries december 10, 2002 lisa m. smith. accelerated reader. reading curriculum AR books 28,000 K-12 titles AR reading level help students choose books that maximize beneficial level of reading practice AR point value
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readability metrics of children’s e-books cpsc 689 digital libraries december 10, 2002 lisa m. smith
accelerated reader • reading curriculum • AR books • 28,000 K-12 titles • AR reading level • help students choose books that maximize beneficial level of reading practice • AR point value • measure amount of reading practice received by the reader • AR tests • multiple-choice comprehension test • earn AR points based on percentage of correct answers and AR point value children's e-books
AR Reading Level 1986 - May 2000 FKGL June 2000 - present ATOS readabilty formula ave. words/sentence ave. chars/word ave. grade level of words AR Point Value (10 + AR reading level) * (number of words / 100000) Flesch-Kincaid Grade Level DoD standard test Word Spelling and Grammar Tool FKGL formula (L * 0.39) * (N * 11.8) - 15.59 years L = ave.words/sent N = ave. syllables/word Point Value (10 + FKGL reading level) * (number of words / 100000) readability metrics children's e-books
1-15 e-books also on AR list Little Women A Little Princess Alice’s Adventures in Wonder.. Red Badge of Courage, The Oliver Twist Hound of Baskervilles, The Anne’s House of Dreams Men of Iron Uncle Tom’s Cabin Huckleberry Finn Tom Sawyer Connecticut Yankee in King … Around the World in Eighty… Birds’ Christmas Carol, The Rebecca of Sunnybrook Farm 16-25 (10 additional e-books) Tom Swift in the Land of … Marvelous Land of Oz, The The Lost Prince A Christmas Carol Lost World, The Jungle Book, The Polly of the Circus Pollyanna Grows Up Innocents Abroad Island of Dr. Moreau, The children’s e-books children's e-books
implementation ATOS word-frequency corpus 474 million words grade-level vocabulary FKGL Word ? classic e-books writing style slang, shortened words vocabulary not found in dictionary conversion from book to e-book typos extra text in e-book ? illustration titles chapter dividers page separators page numbers fkgl vs. ar level children's e-books
25 e-books e-book file (.html) image of cover (.jpg or .gif) 1 metadata file index.txt 2 sources http://etext.lib.virginia.edu/ebooks/subjects/subjects-young.html http://hamilton.dpsk12.org/ARauthor.html 10 metadata e-book title author year of authorship flesch-kincaid grade level point value AR reading level AR point value image link to e-book link to source children’s e-book collection children's e-books
demonstration • e-book list • http://goober.shsu.edu/~lisas/cpsc689dl/project_dl.html • children’s e-book digital library collection • http://128.194.147.81:1026/gsdl • full-text search • browsing hierarchies • search results • image of physical book • readability metrics • link to e-book • link to source children's e-books