A symbolic approach for content-based information filtering.

Byron L. D. Bezerra Francisco de A. T. de Carvalho A symbolic approach for content-based information filtering. 45-52 2004 92 Inf. Process. Lett. 1 http://dx.doi.org/10.1016/j.ipl.2004.06.003 db/journals/ipl/ipl92.html#BezerraC04