Steganography is the ability to hide secret information in a cover-media such as sound, pictures and text. A new approach is proposed to hide a secret into Arabic text cover media using "Kashida", an Arabic extension character. The proposed approach is an attempt to maximize the use of "Kashida" to hide more information in Arabic text cover-media. To approach this, some algorithms have been des...

In this paper, we will focus on the development, implementation, and evolution of a discourse model which is used to computationally instantiate a discourse structure in individual texts. This discourse model was developed for use in a Text Structuring module that recognizes discourse-level structure within a large-scale information retrieval system, DR-LINK (Liddy Myaeng, 1993). The Text Struc...

Clustering is a useful method that categorizes a large quantity of unordered text documents into a small number of meaningful and coherent collections, thereby providing a basis for instinctive and informative navigation and browsing mechanisms. Different type of distance functions and similarity measures have been used for clustering, such as squared, cosine similarity, Euclidean distance and ...