Why Plagiarism Is Wrong

The explosion in the information and technology of our modern life and its consequences in a lot of fields makes a revolution in the getting of data with easier way, especially with the web; which is a great situation for spread of knowledge to everyone, but also added the cases of fraud and theft of information.

As survey of 43,000 high school students conducted in 2010 by the Josephson Institute[50] found that:" 59% admitted to cheating within the past year, with 34% doing it twice or more". A study by Bowers, as cited in McCabe et al.[17] in 1964 found that 75% of college students cheated. This case leads to kill the work hard and creation especially from the students mind.

According to Oxford dictionary[36], plagiarism is " the practice of taking someone

However, this kind of recognition demands an intense memory on all articles, book and any other types of writings which have been read. Another requirement is that the process of reading should have occurred recently. Otherwise, it would be forgotten.

With the amazing improvement on the computer network and the vast amount of source documents available in the Web, the task of recognizing plagiarism is getting beyond the reach of any human cognition. To make it worse, proving a work as an act of plagiarism demands evidence of source documents. This situation gives rise to a need of an automatic plagiarism detection, which motivated us to study this approach.

Plagiarism is very often done smartly, for example by paraphrasing or obfuscating the texts so that only a small part of document are found similar. The detection of plagiarism can be done as extrinsic which compare a suspicious document against a collection of references, whereas intrinsic which do not need any resources just the suspicious document because it is based in chunking the original document and study its style writing variation. Intrinsic case is more difficult when extrinsic is the most