Dictionary based methods for information extraction

Details Dictionary based methods for information extraction Dictionary based methods for information extraction

2004-02-24

arxiv.org/abs/cond-mat/0402581v2

Physica A - Vol 342/1-2 pp 294-300 (2004)

Physics

Condensed Matter

Statistical Mechanics

7 pages, Latex, elsart style

Scientific paper

10.1016/j.physa.2004.01.072

In this paper we present a general method for information extraction that exploits the features of data compression techniques. We first define and focus our attention on the so-called "dictionary" of a sequence. Dictionaries are intrinsically interesting and a study of their features can be of great usefulness to investigate the properties of the sequences they have been extracted from (e.g. DNA strings). We then describe a procedure of string comparison between dictionary-created sequences (or "artificial texts") that gives very good results in several contexts. We finally present some results on self-consistent classification problems.

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