Shamim Ahmed
A.0 GENERAL , A.1 INTRODUCTORY AND SURVEY , B.0 GENERAL , B.1 CONTROL STRUCTURES AND MICROPROGRAMMING , B.2 ARITHMETIC AND LOGIC STRUCTURES , B.4 INPUT/OUTPUT AND DATA COMMUNICATIONS, D.0 GENERAL , D.3 PROGRAMMING LANGUAGES , D.4 OPERATING SYSTEMS , G.0 GENERAL , G.1 NUMERICAL ANALYSIS , H.0 GENERAL , H.1 MODELS AND PRINCIPLES , H.2 DATABASE MANAGEMENT , H.3 INFORMATION STORAGE AND RETRIEVAL , H.4 INFORMATION SYSTEMS APPLICATIONS , H.5 INFORMATION INTERFACES AND PRESENTATION , I.0 GENERAL , I.2 ARTIFICIAL INTELLIGENCE , I.3 COMPUTER GRAPHICS , I.4 IMAGE PROCESSING AND COMPUTER VISION , I.5 PATTERN RECOGNITION , I.7 DOCUMENT AND TEXT PROCESSING , J.0 GENERAL , J.1 ADMINISTRATIVE DATA PROCESSI Artificial Intelligence Computer Communication Networks Database Management Information Storage and Retrieval Image Processing and Computer Vision Pattern Recognition Security Advanced Authentication Protocols Security Computer Networks and Communications

Bio

Shamim Ahmed is a researcher and academic affiliated with Dhaka International University in Dhaka, Bangladesh. He has made contributions to computer science, notably through his work on a Bangla Optical Character Recognition (OCR) system using Back Propagation Neural Networks and an analysis and improvement of WPA2 security. He holds an M.Sc. in Computer Science and an FCPS in Rheumatology from the Bangladesh College of Physicians and Surgeons. Currently, he serves as an Associate Professor in the Department of Rheumatology at Bangabandhu Sheikh Mujib Medical University. With an extensive publication record of 124 works, over 910 citations, an h-index of 17, and an i10-index of 24, he is an active contributor to his fields. He also serves as a reviewer for the Global Journal of Computer Science and Technology and maintains an ORCID profile (0000-0002-0616-5821) and an OpenAlex author ID.

Educational Journey

Bangladesh College of Physicians and Surgeons

FCPS in Rheumatology • Rheumatology

2005

Experience

Associate Professor

1999 - Present • Rheumatology

0 - 0

Editors Role

Reviewer

GJCST

2012 -

Research

The Anatomy of Bangla OCR System for Printed Texts using Back Propagation Neural Network

Article January 1, 1970

This paper is based on Bangla (National Language of Bangladesh) Optical Character Recognition process for printed texts and its steps using Back Propagation Neural Network. Bangla character recognition is very important field of research because Bangla is most popular language in the Indian subcontinent. Pre-processing steps that follows are Image Acquisition, binarization, background removal, noise elimination, skew angle detection and correction, noise removal, line, word and character segmentations. In the post processing steps various features are extracted by applying DCT (Discrete Cosine Transform) from segmented characters. The segmented characters are then fed into a three layer feed forward Back Propagation Neural Network for training. Finally this network is used to recognize printed Bangla scripts.

WPA 2 (Wi-Fi Protected Access 2) Security Enhancement: Analysis & Improvement

Article January 1, 1970

WPA and WPA2 (Wi-Fi Protected Access) is a certification program developed by the Wi-Fi Alliance to indicate compliance with the security protocol created by the WiFi Alliance to secure wireless networks. The Alliance defined the protocol in response to several weaknesses researchers had found in the previous system: Wired Equivalent Privacy (WEP). Many sophisticated authentication and encryption techniques have been embedded into WPA2 but it still facing a lot of challenging situations. In this paper we discuss the benefit of WPA2, its vulnerability & weakness .This paper also present solutions or suggestions which will improve Wi-Fi Protected Access 2 (WPA2) protocol.