PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

On Authorship Attribution via Markov Chains and Sequence Kernels
Conrad Sanderson and Simon Guenter
In: 18th International Conference on Pattern Recognition (ICPR), 20-24 Aug 2006, Hong Kong.

Abstract

We investigate the use of recently proposed character and word sequence kernels for the task of authorship attribution and compare their performance with two probabilistic approaches based on Markov chains of characters and words. Several configurations of the sequence kernels are studied using a relatively large dataset, where each author covered several topics. Utilising Moffat smoothing, the two probabilistic approaches obtain similar performance, which in turn is comparable to that of character sequence kernels and is better than that of word sequence kernels. The results further suggest that when using a realistic setup that takes into account the case of texts which are not written by any hypothesised authors, about 5000 reference words are required to obtain good discrimination performance.

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EPrint Type:Conference or Workshop Item (Oral)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Learning/Statistics & Optimisation
Natural Language Processing
ID Code:2225
Deposited By:Conrad Sanderson
Deposited On:05 October 2006