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Email is an important service to exchange information for Internet users, this important use of email made it the target of various disturbances, such as spam attacks, most of the time it’s generated by advertising (Clayton 2003). Short Message Service (SMS) like emails are also the target of spam attacks, so it is necessary to make emails and messages safe from spams (Karami and Zhou 2014). This...
In the last decade, several algorithms have been proposed to solve the problem of community detection in complex networks. Many of them are based on swarm intelligence and evolutionary algorithms. Most of these algorithms use the modularity density as a fitness function to maximize. However, these algorithms attempt to find the best solution without taking into consideration the structure of the network...
Knowledge extraction from genomic data is important activity for the biologist. In order to extract the underlying biological knowledge, we based on the generic framework of Knowledge extraction from data. In this paper, we transformed DNA sequences into texts, the texts are indexed by TF-IDF and n-grams approach. Secondly, we grouped the similar DNA sequences by clustering; we applied bio-inspired...
Recently, a novel form of web services had seen the light under the name of Cloud Computing which presents the dematerialisation of software, systems and infrastructures. However, in a world where digital information is everywhere, finding the desired information has become a crucial problem. In other hand, the users of cloud services starting asking about their privacy protection, particularly when...
With the growing observed success of big data use, many challenges appeared. Timeless, scalability and privacy are the main problems that researchers attempt to figure out. Privacy preserving is now a highly active domain of research, many works and concepts had seen the light within this theme. One of these concepts is the de-identification techniques. De-identification is a specific area that consists...
One of the biggest impediments that prevent the evolution of big data is the privacy of users. Many advanced researches are done within this topic and a lot of concepts had seen the light. One is a cryptographic concept known as homomorphic encryption which allows the application of operations on ciphered data without need to decipher it. However, from the cryptographic aspect, the homomorphic encryption...
One of the most modern problems that computer science try to resolve is the plagiarism, in this article we present a new approach for automatic plagiarism detection in world of mail service. Our system is based on the n-gram character for the representation of the texts and tfidf as weighting to calculate the importance of term in the corpus, we use also a combination between the machine learning...
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