Title	Towards Security Challenges to Internet-of-Things: Big Data, Networks, and Applications
Author	Shurug Alseady, Abdullah Baz, Tahani Alsubait, Louai Alarabi, Hosam Alhakami
Citation	Vol. 20  No. 11  pp. 131-141
Keywords	Internet of Things; Security Challenges; Big Data; Networks.

Title	Enhancing security of Urdu language websites through Urdu CAPTCHA
Author	Imtiaz Ahmed Dahar, Fizza Abbas Alvi, and Ubaidullah Rajput
Citation	Vol. 20  No. 11  pp. 142-152
Keywords	Urdu, CAPTCHA, security, efficiency.

Title	Detecting Spammers in Social Networks
Author	Eman A. Altameem and Mehmet Sabih Aksoy
Citation	Vol. 20  No. 11  pp. 153-158
Keywords	Online Social Networks, Spam Detection, Machine Learning, Twitter.

Title	Exploration in Algorithm Engineering: Modeling Algorithms
Author	Sabah Al-Fedaghi
Citation	Vol. 20  No. 11  pp. 159-171
Keywords	Algorithm, conceptual model, diagrammatic representation, Turing machine, finite state machine