text classification is an important research field in information retrieval and text mining. the main task in text classification is to assign text documents in predefined categories based on documents’ contents and labeled-training samples. since word detection is a difficult and time consuming task in persian language, bayesian text classifier is an appropriate approach to deal with different...

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...

Many periodicals and books today systematically present a highly biased and misleading picture of IslamD Amongst other things, it is often alleged that Islam is intolerant towards people of other faithsD The truth is that, amongst the religions of the world, Islam is unique as regards the high degree of tolerance which, throughout history, it has shown towards non-Muslim religions, in particula...

This thesis aims at filling this gap. We use experimental and quasi-experimental data and rely on both program evaluation and structural approaches. The thesis is organized in 5 chapters. After introduction in Chapter 1, Chapter 2 uses a quasi-experimental data to assess the impacts of meal and deworming programs taken on isolation. We study the impact of these programs on school performances m...

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the reader as one of the three angles of literary criticism triangle besides its two other angles i.e. the writer and literary work is considered as one of the effective factors in studying a  literary work in critical circles. some critics call him consumer on the one hand and producer on the other hand because of his interpretations and perceptions. accordingly, literary works are divided int...

cospectrality of two graphs measures the differences between the ordered spectrum of these graphs in various ways. actually,the origin of this concept came back to richard brualdi's problems that are proposed in cite{braldi}:let $g_n$ and $g'_n$ be two nonisomorphic simple graphs on $n$ vertices with spectra$$lambda_1 geq lambda_2 geq cdots geq lambda_n ;;;text{and};;; lambda'_1 geq lambda'_2 g...