Title	Performance Enhancement through Reduced Complexity Channel Estimation Algorithm for 4G OFDM Systems
Author	C. Padmaja and Dr. B. L. Malleswari
Citation	Vol. 17  No. 4  pp. 140-143
Keywords	OSTBC, Bit error rate, Spectral Efficiency, Moment generating function.

Title	Automated Flower Species Detection and Recognition from Digital Images
Author	Aalaa Albadarneh and Ashraf Ahmad
Citation	Vol. 17  No. 4  pp. 144-151
Keywords	Automated, Detection, Recognition, Digital Image processing.

Title	A New method of the decision-makers’ needs treatment
Author	Outfarouin Ahmad, Abdali Abdelmouna?m and Zahid Noureddine
Citation	Vol. 17  No. 4  pp. 152-159
Keywords	Decisional information systems, decision-maker needs, decision-maker requirements engineering, treatment process, business intelligence.

Title	An Effective Deep Autoencoder Approach for Online Smartphone-Based Human Activity Recognition
Author	Bandar Almaslukh, Jalal AlMuhtadi, and Abdelmonim Artoli
Citation	Vol. 17  No. 4  pp. 160-165
Keywords	Deep Learning, Stacked Autoencoder, Human Activity Recognition, Machine Learning.