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37 results on '"Dhiman, Abhishek"'

1. FastAST: Accelerating Audio Spectrogram Transformer via Token Merging and Cross-Model Knowledge Distillation

Author

Behera, Swarup Ranjan, Dhiman, Abhishek, Gowda, Karthik, and Narayani, Aalekhya Satya

Subjects
Computer Science - Sound, Computer Science - Artificial Intelligence, Computer Science - Machine Learning, Computer Science - Multimedia, Electrical Engineering and Systems Science - Audio and Speech Processing, 68T10
Abstract

Audio classification models, particularly the Audio Spectrogram Transformer (AST), play a crucial role in efficient audio analysis. However, optimizing their efficiency without compromising accuracy remains a challenge. In this paper, we introduce FastAST, a framework that integrates Token Merging (ToMe) into the AST framework. FastAST enhances inference speed without requiring extensive retraining by merging similar tokens in audio spectrograms. Furthermore, during training, FastAST brings about significant speed improvements. The experiments indicate that FastAST can increase audio classification throughput with minimal impact on accuracy. To mitigate the accuracy impact, we integrate Cross-Model Knowledge Distillation (CMKD) into the FastAST framework. Integrating ToMe and CMKD into AST results in improved accuracy compared to AST while maintaining faster inference speeds. FastAST represents a step towards real-time, resource-efficient audio analysis., Comment: Accepted to Interspeech 2024

Published
2024

5. Application of Deep Learning on Skin Cancer Prediction

Author

Dhiman, Abhishek, Chauhan, Naveen, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Jain, Sarika, editor, Groppe, Sven, editor, and Mihindukulasooriya, Nandana, editor

Published
2023
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6. Bi-RNN and Bi-LSTM Based Text Classification for Amazon Reviews

Author

Kashid, Shamal, Kumar, Krishan, Saini, Parul, Dhiman, Abhishek, Negi, Alok, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Troiano, Luigi, editor, Vaccaro, Alfredo, editor, Kesswani, Nishtha, editor, Díaz Rodriguez, Irene, editor, Brigui, Imene, editor, and Pastor-Escuredo, David, editor

Published
2023
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9. A Statistical Study for Optimizing the Challenges in Vaccine Supply Chain During Critical Times Using DEMATEL Method

Author

Suri, Mukul, Srivastav, Priyam, Dhiman, Abhishek, Shuaib, M., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, di Mare, Francesca, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, Singari, Ranganath M., editor, Kankar, Pavan Kumar, editor, and Moona, Girija, editor

Published
2022
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10. Time Series Forecasting for Electricity Consumption Using ML and DL Algorithms

Author

Kumar, Neeraj, Mishra, Sumit, Baweja, Tanmay, Dubey, Ashutosh, Dhiman, Abhishek, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Suhag, Sathans, editor, Mahanta, Chitralekha, editor, and Mishra, Sukumar, editor

Published
2022
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12. Comparative Analysis of the Payback Period for Different Types of Solar Energy Systems Used in India

Author

Dhiman, Abhishek, Sachdeva, Gulshan, Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Patnaik, Amar, editor, Kozeschnik, Ernst, editor, and Kukshal, Vikas, editor

Published
2021
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14. Nearest Neighbour Search Method for 3D Data Mapping of CFD Data : Steady State Thermal Analysis

Author

Dhiman, Abhishek and Dhiman, Abhishek

Abstract

The advancements in computation power and the development of high-fidelity Multiphysics tools have resulted in the generation of large volumes of datasets during immense simulations. This Master’s thesis work aims to investigate the effectiveness of data mapping of the simulation results from finer meshes (large datasets) onto a coarser mesh using the nearest point method to reduce the simulation time forMultiphysics analysis such as Conjugate Heat Transfer (CHT). The data mapping process utilizes the nearest point method, which employs the nearest neighbour search algorithms. ABAQUS and subroutine files with FORmulaTRANslation (FORTRAN) implementation of the nearest neighbour search methods are used for the data mapping. Although various search algorithms are available in the literature, we narrowed them down to the Bin (Discretise function in MATLAB)and Octree Approach, which are then compared against the Brute Force and the explicit subroutine file creation using MATLAB code. The FORTRAN implementation of these algorithms is achieved through subroutine files and is supported by the User Defined Data Structure (UDDS) to hold the data subsets and corresponding information. The four algorithms are implemented and the performance is evaluated using metrics such as Total Central Processing Unit (CPU) time, Wall Clocktime, Compilation & Pre-Run time, and the average time of the subroutine execution(nearest point method). Additionally, for benchmarking, a Hollow Cylinder is utilized as Case1 and a complex geometric model of an Exhaust Valve as Case2 for validation and qualitative analysis of mapping results. The results indicate a significant improvement in the simulation time achieved with the new methodologies compared to the existing ones. Further analysis of Case1 assisted in the identification of parameters that influence the performance. The qualitative and quantitative analysis of Heat Transfer Coefficient ((HTC) and reference Fluid Temperature (SINK) contour

Published
2024

16. Energy and Exergy Analysis of a Pressurized Solar Cooking System Based on a Parabolic Dish Collector

Author

Dhiman, Abhishek and Sachdeva, Gulshan

Subjects
heat transfer fluid, Ceramics and Composites, exergy and energy, Management, Monitoring, Policy and Law, Solar cooking, parabolic dish collector, conical receiver, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials
Abstract

The greenhouse gas emission in atmosphere has been increasing day by day and cooking is one of the primary reasons for this due to the burning of fossile fuels. In the current research article, the thermal performance of solar pressurize cooker has been investigated experimentally. It is an indirect type of cooker setup in which a pressurized cooker and solar collector are placed apart. Heat transfer fluid is used to transmit heat from a conical receiver to a cooking pot. The cooking potential of the cooker is observed by cooking different edible food at different cooking loads. The cooking is done by circulating heat transfer fluid. Also, energy and exergy analysis have been done for the pressurized cooking used for heating 2 liter of water. The water in cooking pot took 65 minutes to reach the temperature of 100℃. The maximum energy and exergy efficiency values are found to be 32.62% and 22.11%, respectively, whereas, the average energy and exergy efficiency are determined to be 10.58% and 7.08%, respectively. The temperature of heat transfer fluid reached upto 170℃, and the maximum temperature in cooking pot achieved to 151℃. It is observed that cooking system can cook different kinds of edible foods of different cooking load. The system is able to cook at medium temperatures for almost six hours. The system has been successfully tested with a maximum cooking load of 3 litres. The system is long-lasting and requires minimal maintenance.

Published
2022
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19. Energy and Exergy Analysis of a Pressurized Solar Cooking System Based on a Parabolic Dish Collector

Author

Dhiman, Abhishek, Sachdeva, Gulshan, Dhiman, Abhishek, and Sachdeva, Gulshan

Abstract

The greenhouse gas emission in atmosphere has been increasing day by day and cooking is one of the primary reasons for this due to the burning of fossile fuels. In the current research article, the thermal performance of solar pressurize cooker has been investigated experimentally. It is an indirect type of cooker setup in which a pressurized cooker and solar collector are placed apart. Heat transfer fluid is used to transmit heat from a conical receiver to a cooking pot. The cooking potential of the cooker is observed by cooking different edible food at different cooking loads. The cooking is done by circulating heat transfer fluid. Also, energy and exergy analysis have been done for the pressurized cooking used for heating 2 liter of water. The water in cooking pot took 65 minutes to reach the temperature of 100℃. The maximum energy and exergy efficiency values are found to be 32.62% and 22.11%, respectively, whereas, the average energy and exergy efficiency are determined to be 10.58% and 7.08%, respectively. The temperature of heat transfer fluid reached upto 170℃, and the maximum temperature in cooking pot achieved to 151℃. It is observed that cooking system can cook different kinds of edible foods of different cooking load. The system is able to cook at medium temperatures for almost six hours. The system has been successfully tested with a maximum cooking load of 3 litres. The system is long-lasting and requires minimal maintenance.

Published
2023

27. Experimental investigation of an indirect‐type solar cooker for indoor cooking based on a parabolic dish collector.

Author

Dhiman, Abhishek and Sachdeva, Gulshan

Subjects
*PARABOLIC reflectors, *HEAT transfer fluids, *GEAR pumps, *BLACK gram, *THERMAL efficiency, *COOKING
Abstract

In the present research article, an indirect type solar cooking system has been developed for indoor cooking. In the proposed cooking system, a cooking pot has been placed at a distance of 5 m from the parabolic dish collector, and the heat has been transmitted from the collector to the cooking pot by means of heat transfer fluid. A gear pump of 40 W and insulated pipes have been used to circulate the fluid. A number of experiments have been performed to analyze the performance of the cooking system. During the investigation, the system achieved the temperature of the heat transfer fluid up to 175°C. The time taken for cooking the rice and the black grams has been observed 21 and 68min, respectively. The average thermal efficiency of the proposed system for the entire day has been achieved at 13.11%. [ABSTRACT FROM AUTHOR]

Published
2023
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35. Slow release of ciprofloxacin from β- cyclodextrin containing drug delivery system through network formation and supramolecular interactions.

Author

Singh, Baljit, Dhiman, Abhishek, Rajneesh, null, and Kumar, Ajay

Subjects
*CIPROFLOXACIN, *DRUG delivery systems, *CYCLODEXTRINS, *MOLECULAR interactions, *CONTROLLED release drugs, *NUCLEAR magnetic resonance
Abstract

Supramolecular cyclodextrin (CD) hydrogels have occupied an important position in developing the materials for biomedical application. In the present work an attempt has been made to improve the release profile of ciprofloxacin by designing the β- cyclodextrin containing drug delivery system through network formation and supramolecular interactions. The polymer network has been formed by sterculia gum comprising of glucuronic acid and galacturonic acid and carbopol. The polymers have been characterization by cryo-SEMs, FTIR and 13 C solid state (NMR) and swelling studies. This article also discusses drug release, blood compatibility, mucoadhesion, gel strength and antioxidant properties of the polymers. The release of drug from β-CD containing hydrogels was slower and less as compared to the hydrogels without β-CD. Release of drugs from drug loaded hydrogels occurred through non-Fickian diffusion mechanism and release profile best fitted in Korsmeyer-Peppas model. These hydrogels have been found as haemocompatible, mucoadhesive, and antioxidant in nature. Mucoadhesive nature can further provide the site specific nature to drug delivery system in GIT. [ABSTRACT FROM AUTHOR]

Published
2016
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