Text ( visual ) : unmediated A computational theory of writing systems / Richard Sproat. -- : pbk. -- Cambridge, UK : Cambridge University Press , 2006, c2000. -- xviii, 236 p. : ill. ; 23 cm. -- (Studies in natural language processing). -- "First published 2000. This digitally printed first paperback version 2006"--T.p. verso. -- ISBN 9780521034227 ; (BB05025393) ; https://ci.nii.ac.jp/ncid/BB05025393 Author Heading(s): Sproat, Richard William. -- Classification(s): LCC : P211.4 ; DC21 : 411/.0285. -- Subject Heading(s): LCSH : Written communication -- Data processing