Delta Prime?

John F. Burrows has proposed Delta, a simple new measure of textual difference, as a tool for authorship attribution, and has shown that it has great potential, especially in attribution problems where the possible authors are numerous and difficult to limit by traditional methods. In tests on prose, Delta has performed nearly as well as for Burrows’s verse texts. A series of further tests using automated methods, however, shows that two modified methods of calculating Delta and three alternatives to or transformations of Delta produce results that are even more accurate. Four of these five new measures produce much better results than Delta both on a very diverse group of 104 novels and on a group of forty-four smaller contemporary literary critical texts. Although further testing is needed, Delta and its modifications should prove valuable and effective tools for authorship attribution. LitLin 19_4 477-495 fqh035 FIN 20/10/04 9:03 am Page 477

[1]  Gary Saul Morson,et al.  Sideshadowing and Tempics. , 1998 .

[2]  Laurence Lerner,et al.  Peace Studies: A Proposal , 1995 .

[3]  Dorrit Cohn,et al.  Optics and Power in the Novel , 1995 .

[4]  John Burrows,et al.  Questions of Authorship: Attribution and Beyond A Lecture Delivered on the Occasion of the Roberto Busa Award ACH-ALLC 2001, New York , 2003, Comput. Humanit..

[5]  Tzachi Zamir,et al.  Upon One Bank and Shoal of Time: Literature, Nihilism, and Moral Philosophy , 2000 .

[6]  Jerry Aline Flieger,et al.  Postmodern Perspective: The Paranoid Eye , 1997 .

[7]  Glenn Willmott.  Canadian Ressentiment , 2001 .

[8]  Charles Altieri,et al.  Taking Lyrics Literally: Teaching Poetry in a Prose Culture , 2001 .

[9]  Denis Donoghue,et al.  Teaching Literature: The Force of Form , 1999 .

[10]  Hans Ulrich Gumbrecht,et al.  Epiphany of Form: On the Beauty of Team Sports , 1999 .

[11]  Deborah Knight,et al.  Women, Subjectivity, and the Rhetoric of Anti-Humanism in Feminist Film Theory , 1995 .

[12]  Miele Steele,et al.  Metatheory and the Subject of Democracy in the Work of Ralph Ellison , 1996 .

[13]  Geoffrey H. Hartman.  On Traumatic Knowledge and Literary Studies , 1995 .

[14]  David F. Hult,et al.  Words and Deeds: Jean de Meun's Romance of the Rose and the Hermeneutics of Censorship , 1997 .

[15]  Jim O'Loughlin,et al.  Articulating Uncle Tom's Cabin , 2000 .

[16]  Charles D. Tarlton,et al.  Fortuna and the Landscape of Action in Machiavelli's Prince , 1999 .

[17]  Jerome McGann.  Herbert Horne's Diversi Colores (1891): Incarnating the Religion of Beauty , 2003 .

[18]  Eric Gans.  "Staging as an Anthropological Category" , 2000 .

[19]  Brian Stock,et al.  Reading, Writing, and the Self: Petrarch and His Forerunners , 1995 .

[20]  S. Stanbury,et al.  Regimes of the Visual in Premodern England: Gaze, Body, and Chaucer's Clerk's Tale , 1997 .

[21]  Laurence Lerner,et al.  Poet versus Abstract Noun: An Agon , 1998 .

[22]  Amy M. Hollywood.  On the Materiality of Air: Janet Kauffman's Bodyfictions , 1996 .

[23]  Jonathan Ree.  Subjectivity in the Twentieth Century , 1995 .

[24]  Denis Donoghue,et al.  Orality, Literacy, and Their Discontents , 1996 .

[25]  Jerome McGann,et al.  Visible and Invisible Books: Hermetic Images in N-Dimensional Space , 2001, Lit. Linguistic Comput..

[26]  Gary Saul Morson,et al.  Contingency and Freedom, Prosaics and Process. , 1998 .

[27]  Charles D. Tarlton.  "the Word for the Deed": Hobbes's Two Versions of Leviathan , 1996 .

[28]  David Sidorsky,et al.  The Historical Novel as the Denial of History: From "Nestor" via the "Vico Road" to the Commodius Vicus of Recirculation , 2001 .

[29]  Winfried Fluck,et al.  "The American Romance" and the Changing Functions of the Imaginary , 1996 .

[30]  Julie Choi,et al.  Feminine Authority? Common Sense and the Question of Voice in the Novel , 1996 .

[31]  Frans De Bruyn,et al.  The Classical Silva and the Generic Development of Scientific Writing in Seventeenth-Century England , 2001 .

[32]  John Burrows,et al.  'Delta': a Measure of Stylistic Difference and a Guide to Likely Authorship , 2002, Lit. Linguistic Comput..

[33]  Hans Ulrich Gumbrecht,et al.  The Future of Literary Studies? , 1995 .

[34]  J. Rée,et al.  The Translation of Philosophy , 2001 .

[35]  Robert G. Culbertson,et al.  Embodied Memory, Transcendence, and Telling: Recounting Trauma, Re-establishing the Self , 1995 .

[36]  Winfried Fluck,et al.  The Search for Distance: Negation and Negativity in Wolfgang Iser's Literary Theory , 2000 .

[37]  Caryl Emerson.  Pushkin, Literary Criticism, and Creativity in Closed Places , 1998 .

[38]  Charles Altieri,et al.  Article: Poetics as "Untruth": Revising Modern Claims for Literary Truths , 1998 .

[39]  Martha Craven Nussbaum.  The Window: Knowledge of Other Minds in Virginia Woolf's To The Lighthouse , 1995 .

[40]  Eric Gans,et al.  The Last Word in Lyric: Mallarme's Silent Siren , 1999 .

[41]  Jonathan Arac.  Postmodernism and Postmodernity in China: An Agenda for Inquiry , 1997 .

[42]  Larry Wolff,et al.  "The Boys are Pickpockets, and the Girl is a Prostitute": Gender and Juvenile Criminality in Early Victorian England from Oliver Twist to London Labour , 1996 .

[43]  Martha Craven Nussbaum.  Political Objectivity , 2001 .

[44]  Brian Stock,et al.  Ethical Values and the Literary Imagination in the Later Ancient World , 1998 .

[45]  Caryl Emerson,et al.  Keeping the Self Intact During the Culture Wars: A Centennial Essay for Mikhail Bakhtin , 1996 .

[46]  Jonathan Arac,et al.  Why Does No One Care about the Aesthetic Value of Huckleberry Finn ? , 1999 .