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1,872 results on '"Singh, Anupam"'

255. Alteration in pattern reversal visual evoked potential in pediatric population with amblyopia and spherical refractive errors

Author

Agrawal, Ajai, Puthalath, Athul, Mittal, Sanjeev, Mittal, Sunita, Singh, Yogesh, and Singh, Anupam

Subjects
Complications and side effects, Research, Pediatric research, Childhood vision disorders -- Complications and side effects, Visual evoked potentials -- Research, Amblyopia -- Complications and side effects, Refractive errors -- Complications and side effects, Vision disorders in children -- Complications and side effects, Eye -- Refractive errors, Visual evoked response -- Research
Published
2022

258. Burden of ocular morbidities and color blindness among school-attending children in a foothill town of Uttarakhand State

Author

Mittal, Sanjeev, Mittal, Sunita, Saraswat, Neeraj, Kishore, Surekha, Agrawal, Ajai, Singh, Anupam, Samanta, Ramanuj, and Bahurupi, Yogesh

Subjects
Uttarakhand, India -- Health aspects, Statistics, Risk factors, Health aspects, Pediatric research, Color blindness -- Statistics -- Risk factors, Elementary school students -- Statistics -- Health aspects, Childhood vision disorders -- Statistics -- Risk factors, City children -- Statistics -- Health aspects, Vision disorders in children -- Statistics -- Risk factors
Published
2022

262. EEG‐based biometric authentication system using convolutional neural network for military applications.

Author

Vadher, Himanshu, Patel, Pal, Nair, Anuja, Vyas, Tarjni, Desai, Shivani, Gohil, Lata, Tanwar, Sudeep, Garg, Deepak, and Singh, Anupam

Subjects
CONVOLUTIONAL neural networks, BIOMETRIC identification, INDEPENDENT component analysis, SIGNAL processing, ARCHAEOLOGY methodology
Abstract

In this technological era, as the need for security arises, the use of biometrics is increasing in authentication systems as a secure and convenient method of human identification and verification. Electroencephalogram (EEG) signals have gained significant attention among the various biometric modalities available because of their unique and unforgeable characteristics. In this study, we have proposed an EEG‐based multi‐subject and multi‐task biometric authentication system for the military applications that address the challenges associated with multi‐task variation in EEG signals. The proposed work considers the use of respective EEG signals for the access of artillery, entrance to highly confidential places for the military and so forth by authenticated personnel only. We have used a multi‐subject, multi‐session, and multi‐task (M3CV$$ {M}^3 CV $$) dataset. The dataset was partially preprocessed with basic signal processing techniques such as bad channel repairing, independent component analysis for artifact removal, downsampling to 250 Hz, and an audio filter of 0.01–200 Hz for signal improvisation. This partially preprocessed dataset was further processed and was used in our deep learning model (DL) architectures. For EEG‐based biometric authentication, convolutional neural network (CNN) outperforms many of the state‐of‐the‐art DL architectures with a validation accuracy of approximately 99.86%, training accuracy of 98.49% and precision, recall and F1‐score with values of 99.91% that makes this EEG‐based approach for authentication more reliable. The DL models were also compared based on training and inference time, where CNN used the most training time but took the least time to predict the output. We compared the performance of the CNN model for three preprocessing techniques by feeding mel spectrograms, chromagrams and mel frequency cepstral coefficients, out of which mel spectrograms provided better results. This proposed architecture proves to be robust and efficient for military applications. [ABSTRACT FROM AUTHOR]

Published
2024
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263. Neutrosophic Automata and Reverse Neutrosophic Automata.

Author

Ram, Anil Kumar, Singh, Anupam K., and Kumar, Bikky

Subjects
*DEFINITIONS
Abstract

This research is dedicated to exploring the relationships among neutrosophic automata, reverse neutrosophic automata, and double neutrosophic automata. Through the utilization of these three automata, we establish definitions for a neutrosophic subsystem, a reverse neutrosophic subsystem, and a double neutrosophic subsystem, delving into various properties associated with them. Additionally, we aim to introduce the notion of categorical aspects concerning neutrosophic automata and reverse neutrosophic automata, along with their functorial relationship. [ABSTRACT FROM AUTHOR]

Published
2024

270. Surjectivity of word maps on Matrix Algebra

Author

Panja, Saikat, Saini, Prachi, and Singh, Anupam

Subjects
Rings and Algebras (math.RA), FOS: Mathematics, Group Theory (math.GR), Mathematics - Rings and Algebras, 16S50, 11P05, Mathematics - Group Theory
Abstract

Consider the word map on $M_n(\mathbb K)$ given by a polynomial $f(X_1, \ldots, X_m)$ over the field $\mathbb K$. We consider a multilinear map given by product of commutators $f=[X_1,X_2][X_3,X_4]\cdots [X_{m-1},X_m]$ and show that it is surjective on $M_n(\mathbb K)$ if $m\geq 4$. We also explore the image of the diagonal word map given by $f=\delta_1 X_1^{k_1} + \delta_2 X_2^{k_2} + \cdots +\delta_m X_m^{k_m}$ depending on solution of certain equations over $\mathbb K$. In particular, we show that for $m\geq 2$, the diagonal word map is surjective when (a) $\mathbb K= \mathbb C$, (b) $\mathbb K= \mathbb F_q$ for large enough $q$, and (c) $\mathbb K= \mathbb R$ with at least one of the $k_i$ is odd.

Published
2023

272. On the Topological Structure of Rough Soft Sets

Author

Gautam, Vinay, Yadav, Vijay K., Singh, Anupam K., Tiwari, S. P., Goebel, Randy, Series editor, Tanaka, Yuzuru, Series editor, Wahlster, Wolfgang, Series editor, Miao, Duoqian, editor, Pedrycz, Witold, editor, Ślȩzak, Dominik, editor, Peters, Georg, editor, Hu, Qinghua, editor, and Wang, Ruizhi, editor

Published
2014
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275. List of contributors

Author

Ahmad, Sohail, Alma, Mehmet Hakki, Anand, Aparna, Atalar, Mehmet Nuri, Avti, Pramod K., Badar, Muhammad, Baran, Ayse, Baran, Mehmet Firat, Chauhan, Arushi, Chauhan, Deepak S., Dhanka, Mukesh, Dhawan, Radhika, Eftekhari, Aziz, Hashmi, Irum Batool, Indu, Sabapathy, Ipek, Polat, Joshi, Gayatri, Kakhlon, Or, Keskin, Cumali, Khan, Muhammad Hashim, Khatua, Saumyakanti, Kuddushi, Muzammil, Kumar, Payal, Mahato, Shreya, Manikkam, Rajalakshmi, Mishra, Kumudesh, Palakkal, Sarin, Rai, Ashish Kumar, Sangwan, Namrata, Saxena, Nupur, Sharma, Abhinay, Singh, Anupam, Singh, Jitender, Solaimuthu, Balakrishnan, Tewari, Manju, Verma, Ashmit, and Vijayalakshmi, Periyasamy

Published
2025
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276. Fuzzy Preorder, Fuzzy Topology and Fuzzy Transition System

Author

Tiwari, S. P., Singh, Anupam K., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Lodaya, Kamal, editor

Published
2013
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299. Catalytic cascade synthesis of cyanohydrin esters via water/O2-induced cyanide transfer from K3Fe(CN)6.

Author

Singh, Anupam Kumar, Chauhan, Shivani Singh, and Bhadra, Sukalyan

Subjects
*ESTERS, *CYANIDES, *COPPER, *IONS
Abstract

The copper-catalyzed α-oxygenation of aryl benzyl ketones is merged with a unique water/O2-induced release of cyanide ions from K3Fe(CN)6 and a benzil-cyanide reaction. This strategy gives expedient access to cyanohydrin esters starting directly from broadly accessible aryl benzyl ketones. The cyanide release strategy was further integrated with a copper catalyzed oxygenation-decarbonylation sequence to produce cyanohydrin esters from 1,3-diketones. [ABSTRACT FROM AUTHOR]

Published
2023
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