MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202631044658 A) filed by Jis University, Kolkata, West Bengal, on April 7, for 'real-time writing style authentication system for impersonation detection in online examinations.'

Inventor(s) include Mr. Indranil Sarkar; Ananjan Maiti; Mr. Sourish Mitra; Dr. Sandip Roy; Dr. Rajesh Bose; Smarta Das; and Shrabani Sutradhar.

The application for the patent was published on April 17, under issue no. 16/2026.

According to the abstract released by the Intellectual Property India: "Real-Time Writing Style Authentication System for Impersonation Detection in Online Examinations" The present invention is a computer-implemented method for real-time authentication of a candidate during an online examination, the method comprising collecting a plurality of writing samples from a candidate to generate a baseline writing profile; preprocessing the writing samples using natural language processing techniques including tokenization, normalization, and removal of stop words;extracting linguistic and stylistic features including vocabulary usage, sentence structure, punctuation patterns, and syntactic variations;training one or more machine learning models comprising recurrent neural architectures including Long Short-Term Memory (LSTM), Recurrent Neural Networks (RNN), and Gated Recurrent Units (GRU) to generate a candidate-specific writing signature;receiving real-time textual input from the candidate during the examination;preprocessing and extracting features from the real-time textual input;comparing the extracted features of the real-time textual input with the baseline writing profile using the trained machine learning model; computing a similarity score representing deviation between the real-time textual input and the baseline writing profile; and generating an impersonation alert when the similarity score deviates beyond a predefined threshold, wherein the authentication is performed without the use of biometric sensors or video-based monitoring."

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