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Chandran S.S.,Karpagam University | Murugappan S.,Tamilnadu Open University
International Journal of Applied Engineering Research | Year: 2014

In recent days the number of email users and social networking site users has been increasing rapidly. It has even become mandatory in the life of people especially younger generation. This is eventually due to the enormous growth of technology. But the spammers also grow up along with the growth of technology. Online social sites have become a communication tool for past few years. But In the wrong hands, networking sites are also effective tools for executing spam campaigns. Sites like Twitter and Facebook are prone to spam in various means like tweets, links, images etc. The spammers also generate boot spam messages i.e. bulk spam messages. Several techniques have been developed to stop or prevent spammers from attacking. As the technique become newer and different, the spammers also implement newer ways of attacking. This paper aims to eliminate three different kinds of spam generated from URL’s, content and image features and they are classified using three different classifiers to evaluate the performance. © Research India Publications.


Raja R.,Madurai Kamaraj University | Sivasubramaniyan A.,Madurai Kamaraj University | Murugan D.,Madurai Kamaraj University | Subbaiah N.,Madurai Kamaraj University | And 6 more authors.
Research on Chemical Intermediates | Year: 2016

Abstract: A water mediated microwave assisted synthesis of 1,2,3-triazolyl-pyridine hybrids have been accomplished via one-pot, three-component eco-friendly protocol in excellent yield. Additionally, the synthesis was achieved efficiently via environmental friendly microwave assisted solvent-free methodology. All the synthesized hybrids were screened against four human bacterial pathogens Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae and Salmonella typhi. Interestingly, one of the hybrids (4a) is more potent than Streptomycin (standard drug) and some of the hybrids are of equal or moderate activity. Graphical Abstract: A water mediated microwave assisted synthesis of 1,2,3-triazolyl-pyridine hybrids have been accomplished via one-pot, three-component eco-friendly protocol in excellent yield. All the synthesized hybrids were screened against four human bacterial pathogens.[Figure not available: see fulltext.] © 2016 Springer Science+Business Media Dordrecht


Abirami S.,Anna University | Vikraman R.,Anna University | Murugappan S.,Tamilnadu Open University
Advances in Intelligent Systems and Computing | Year: 2016

Data de-duplication is the process of finding duplicates and eliminating it from the storage environment. There are various levels where the data de-duplication can be performed, such as file level, where the entire file as a whole is considered for the purpose of duplicate detection. Second is chunk level, where the file is split into small units called chunks and those chunks are used for the duplicate detection. Third is byte level, where the comparisons take byte-level comparison. The fingerprint of the chunks is the main parameter for the duplicate detection. These fingerprints are placed inside the chunk index. As the chunk index size increases, the chunk index needs to be placed in the disk. Searching for the fingerprint in the chunk index placed in the disk will consume a lot of time which will lead to a problem known as chunk lookup disk bottleneck problem. This paper eliminates that problem to some extent by placing a bloom filter in the cache as a probabilistic summary of all the fingerprints in the chunk index placed in the disk. This paper uses the backup data sets obtained from the university labs. The performance is measured with respect to the data de-duplication ratio. © Springer India 2016.


Karthick S.,Anna University | Abirami S.,Anna University | Murugappan S.,Tamilnadu open University | Sivarathinabala M.,Anna University | Baskaran R.,Anna University
Advances in Intelligent Systems and Computing | Year: 2015

In recent decades, there has been a huge growth in the amount of multimedia content stored in networked repositories. Many video hosting websites exists in today’s scenario such as youtube, metacafe and google video etc., where people are uploading and downloading their videos. At present, indexing and categorization of these videos is a tiresome job. Either the system asks the user to suggest tags for the videos which they upload or people are employed to tag the video manually. Manual tagging has been done based on the views of users, search terms, etc. In order to eliminate this problem, this paper proposes a model that automatically categorizes the videos based on their genres. The main aim of this work was to categorize the videos broadly on major domains such as sports, music and news using temporal, textural, motion, and color features. In sports, the videos have been classified further into cricket and football. The hierarchical SVM has been used for automatic training and selection of the genre of the video. A total of 350 videos from various Web sites have been used for training the classification system. This system achieves an overall average detection ratio up to 98% while maintaining very low false detection rate of 2%. © Springer India 2015.


Sumathi D.,Tamilnadu Open University
ICDLE 2010 - 2010 4th International Conference on Distance Learning and Education, Proceedings | Year: 2010

E-learning offers tremendous opportunities for acquiring knowledge and skills that are as good as offered in the traditional in the traditional classrooms. The effectiveness of e-learning depends upon the development of pedagogy gives according to the e-learning strategies. E-learning has not yet conquered the hearts of learners and still in an infancy stage. Here we create a good e-learning environment? Is it true that e-learning indicates a paradigm shift in higher education the instructional approach a notion of getting information across over a fixed period of time is the pedagogical approach that most of us have experienced through our days at school. This paper explore the history of the development of pedagogies for e-learning and will suggest direction for future exploration and development and explore the pedagogic challenges exist in elearning and suggest direction for future exploration and development. © 2010 IEEE.


Sivasubramaniyan A.,Madurai Kamaraj University | Murugan D.,Madurai Kamaraj University | Raja R.,Madurai Kamaraj University | Murugan S.,Madurai Kamaraj University | And 2 more authors.
Synthetic Communications | Year: 2015

An efficient synthesis of N-acyl/N-substituted acyl pyrazolines and their triazole hybrids have been accomplished via acylation of pyrazolines and pyrazoline-triazole hybrids with carboxylic acids and/or substituted carboxylic acids in the absence of activating agents/catalysts. In the present study, a mechanism envisaging the in situ generation of a new transient acylating intermediate has been proposed to explain the acylation. © 2015 Taylor and Francis Group, LLC.


Maithili,Tamilnadu Open University | Murugappan S.,Tamilnadu Open University
International Journal of Applied Engineering Research | Year: 2014

In recent days, the number of email users and social networking site users has been increasing rapidly. It has even become mandatory in the life of people especially for younger generation. This is eventually due to the enormous growth of technology. But the spammers also grow up along with the growth of the technology. Several new techniques have been researched in literatures and introduced to stop or prevent spammers from attacking. As the technique become newer and different, the spammers also implement newer ways of attacking. In this paper, we present a review of efficient and different methods developed for detecting spammers and spam content. © Research India Publications.

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