1. Department of Computer Science & Engineering University of Calcutta Bidhannagar Kolkata West Bengal India
2. Present address Mandira Roy, Department of Computer Science & Engineering University of Calcutta Bidhannagar Kolkata West Bengal 700106 India
3. Indian Institute of Information Technology Vadodara (IIIT‐V) Gandhinagar Gujarat India
4. Department of Environmental Sciences, Informatics and Statistics Ca' Foscari University Via Torino Venice Italy
5. A.K.C School of Information Technology University of Calcutta Bidhannagar Kolkata West Bengal India