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788 results on '"Kumar, Divya"'

2. An ensemble of data-driven weather prediction models for operational sub-seasonal forecasting

Author

Weyn, Jonathan A., Kumar, Divya, Berman, Jeremy, Kazmi, Najeeb, Klocek, Sylwester, Luferenko, Pete, and Thambiratnam, Kit

Subjects
Physics - Atmospheric and Oceanic Physics, Computer Science - Machine Learning
Abstract

We present an operations-ready multi-model ensemble weather forecasting system which uses hybrid data-driven weather prediction models coupled with the European Centre for Medium-range Weather Forecasts (ECMWF) ocean model to predict global weather at 1-degree resolution for 4 weeks of lead time. For predictions of 2-meter temperature, our ensemble on average outperforms the raw ECMWF extended-range ensemble by 4-17%, depending on the lead time. However, after applying statistical bias corrections, the ECMWF ensemble is about 3% better at 4 weeks. For other surface parameters, our ensemble is also within a few percentage points of ECMWF's ensemble. We demonstrate that it is possible to achieve near-state-of-the-art subseasonal-to-seasonal forecasts using a multi-model ensembling approach with data-driven weather prediction models.

Published
2024

4. DeepSpeed4Science Initiative: Enabling Large-Scale Scientific Discovery through Sophisticated AI System Technologies

Author

Song, Shuaiwen Leon, Kruft, Bonnie, Zhang, Minjia, Li, Conglong, Chen, Shiyang, Zhang, Chengming, Tanaka, Masahiro, Wu, Xiaoxia, Rasley, Jeff, Awan, Ammar Ahmad, Holmes, Connor, Cai, Martin, Ghanem, Adam, Zhou, Zhongzhu, He, Yuxiong, Luferenko, Pete, Kumar, Divya, Weyn, Jonathan, Zhang, Ruixiong, Klocek, Sylwester, Vragov, Volodymyr, AlQuraishi, Mohammed, Ahdritz, Gustaf, Floristean, Christina, Negri, Cristina, Kotamarthi, Rao, Vishwanath, Venkatram, Ramanathan, Arvind, Foreman, Sam, Hippe, Kyle, Arcomano, Troy, Maulik, Romit, Zvyagin, Maxim, Brace, Alexander, Zhang, Bin, Bohorquez, Cindy Orozco, Clyde, Austin, Kale, Bharat, Perez-Rivera, Danilo, Ma, Heng, Mann, Carla M., Irvin, Michael, Pauloski, J. Gregory, Ward, Logan, Hayot, Valerie, Emani, Murali, Xie, Zhen, Lin, Diangen, Shukla, Maulik, Foster, Ian, Davis, James J., Papka, Michael E., Brettin, Thomas, Balaprakash, Prasanna, Tourassi, Gina, Gounley, John, Hanson, Heidi, Potok, Thomas E, Pasini, Massimiliano Lupo, Evans, Kate, Lu, Dan, Lunga, Dalton, Yin, Junqi, Dash, Sajal, Wang, Feiyi, Shankar, Mallikarjun, Lyngaas, Isaac, Wang, Xiao, Cong, Guojing, Zhang, Pei, Fan, Ming, Liu, Siyan, Hoisie, Adolfy, Yoo, Shinjae, Ren, Yihui, Tang, William, Felker, Kyle, Svyatkovskiy, Alexey, Liu, Hang, Aji, Ashwin, Dalton, Angela, Schulte, Michael, Schulz, Karl, Deng, Yuntian, Nie, Weili, Romero, Josh, Dallago, Christian, Vahdat, Arash, Xiao, Chaowei, Gibbs, Thomas, Anandkumar, Anima, and Stevens, Rick

Subjects
Computer Science - Artificial Intelligence, Computer Science - Machine Learning
Abstract

In the upcoming decade, deep learning may revolutionize the natural sciences, enhancing our capacity to model and predict natural occurrences. This could herald a new era of scientific exploration, bringing significant advancements across sectors from drug development to renewable energy. To answer this call, we present DeepSpeed4Science initiative (deepspeed4science.ai) which aims to build unique capabilities through AI system technology innovations to help domain experts to unlock today's biggest science mysteries. By leveraging DeepSpeed's current technology pillars (training, inference and compression) as base technology enablers, DeepSpeed4Science will create a new set of AI system technologies tailored for accelerating scientific discoveries by addressing their unique complexity beyond the common technical approaches used for accelerating generic large language models (LLMs). In this paper, we showcase the early progress we made with DeepSpeed4Science in addressing two of the critical system challenges in structural biology research.

Published
2023

6. Neuromorphic Computing and AI-Enhanced Modeling of Time Series Counts for Real-Life Data Analysis

Author

Shukla, Rishi Prakash, Kumar, Divya, 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, Abraham, Ajith, editor, Bajaj, Anu, editor, Hanne, Thomas, editor, Siarry, Patrick, editor, and Ma, Kun, editor

Published
2024
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7. Bridging the Mind-Machine Gap: Harnessing AI and ML for EEG Signal Processing and Brainwave Decoding

Author

Shukla, Rishi Prakash, Kumar, Divya, 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, Abraham, Ajith, editor, Bajaj, Anu, editor, and Hanne, Thomas, editor

Published
2024
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13. FCMI: Feature Correlation based Missing Data Imputation

Author

Mishra, Prateek, Mani, Kumar Divya, Johri, Prashant, and Arya, Dikhsa

Subjects
Computer Science - Machine Learning, Computer Science - Artificial Intelligence
Abstract

Processed data are insightful, and crude data are obtuse. A serious threat to data reliability is missing values. Such data leads to inaccurate analysis and wrong predictions. We propose an efficient technique to impute the missing value in the dataset based on correlation called FCMI (Feature Correlation based Missing Data Imputation). We have considered the correlation of the attributes of the dataset, and that is our central idea. Our proposed algorithm picks the highly correlated attributes of the dataset and uses these attributes to build a regression model whose parameters are optimized such that the correlation of the dataset is maintained. Experiments conducted on both classification and regression datasets show that the proposed imputation technique outperforms existing imputation algorithms.

Published
2021

15. 'I Was Confused … and Still Am' Barriers Impacting the Help-Seeking Pathway for an Autism Diagnosis in Urban North India: A Mixed Methods Study

Author

Bhavnani, Supriya, Lockwood Estrin, Georgia, Arora, Rashi, Kumar, Divya, Kakra, Minal, Vajaratkar, Vivek, Juneja, Monica, Gulati, Sheffali, Patel, Vikram, Green, Jonathan, and Divan, Gauri

Abstract

Timely recognition of autism in children is integral to improve developmental outcomes. This study used mixed-methods (84 case-registers and 20 in-depth interviews with caregivers of children with a diagnosis of autism) to explore the extent to which the nature of parental concerns and prior knowledge of developmental disorders impact the time between symptom recognition and autism diagnosis, and the contextual family, societal and health-system related factors that impede the autism help-seeking pathway. Lack of awareness of age-appropriate child developmental milestones, apparent amongst the community and health professionals, contributed to a 1.5-year delay between parental concerns and autism diagnosis. Recommendations to shorten this help-seeking pathway include harnessing the potential of non-specialist workers to increase awareness and enable developmental monitoring of young children through scalable tools.

Published
2022
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18. A Blockchain Point of View of Supply Chain Problems in India

Author

Amitesh, Kumar, Divya, 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, Chong, Peter Han Joo, editor, Kalam, Akhtar, editor, Pascoal, Antonio, editor, and Bera, Manas Kumar, editor

Published
2022
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21. Video-Based Depression Detection Using Support Vector Machine (SVM)

Author

Yadav, Nishu, Singh, Astha, Kumar, Divya, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Mukhopadhyay, Somnath, editor, Sarkar, Sunita, editor, Dutta, Paramartha, editor, Mandal, Jyotsna Kumar, editor, and Roy, Sudipta, editor

Published
2022
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25. 'I was Confused ... and Still am' Barriers Impacting the Help-Seeking Pathway for an Autism Diagnosis in Urban North India: A Mixed Methods Study

Author

Bhavnani, Supriya, Lockwood Estrin, Georgia, Arora, Rashi, Kumar, Divya, Kakra, Minal, Vajaratkar, Vivek, and Juneja, Monica

Subjects
Pervasive developmental disorders -- Diagnosis -- Care and treatment -- Demographic aspects, Help-seeking behavior -- Forecasts and trends -- Demographic aspects, Market trend/market analysis, Health
Abstract

Timely recognition of autism in children is integral to improve developmental outcomes. This study used mixed-methods (84 case-registers and 20 in-depth interviews with caregivers of children with a diagnosis of autism) to explore the extent to which the nature of parental concerns and prior knowledge of developmental disorders impact the time between symptom recognition and autism diagnosis, and the contextual family, societal and health-system related factors that impede the autism help-seeking pathway. Lack of awareness of age-appropriate child developmental milestones, apparent amongst the community and health professionals, contributed to a 1.5-year delay between parental concerns and autism diagnosis. Recommendations to shorten this help-seeking pathway include harnessing the potential of non-specialist workers to increase awareness and enable developmental monitoring of young children through scalable tools., Author(s): Supriya Bhavnani [sup.1] [sup.2] , Georgia Lockwood Estrin [sup.3] , Rashi Arora [sup.1] , Divya Kumar [sup.1] , Minal Kakra [sup.1] , Vivek Vajaratkar [sup.4] , Monica Juneja [sup.5] [...]

Published
2022
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27. Dissecting microRNA-regulated networks in hepatocellular carcinoma cell subtypes with different mutational profiles: Evidence from in vitro and in silico studies

Author

Karunakara, Shreyas Hulusemane, primary, Bhat, Vijayalakshmi, additional, Moorthy, Manju, additional, Ramaswamy, Gopalakrishna, additional, Kabekkodu, Shama Prasada, additional, SannappaGowda, Nirmala Gollarahalli, additional, Shiragannavar, Varsha Dilip, additional, Kumar, Divya Prasanna, additional, Prashant, Akila, additional, Vishwanath, Prashant M, additional, and Santhekadur, Prasanna Kumar, additional

Published
2024
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37. Gauging Stress Among Indian Engineering Students

Author

Singh, Astha, Kumar, Divya, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Dutta, Paramartha, editor, Mandal, Jyotsna K., editor, and Mukhopadhyay, Somnath, editor

Published
2021
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38. Split Behavior of Supervised Machine Learning Algorithms for Phishing URL Detection

Author

Purbay, Madhurendra, Kumar, Divya, 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, 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, Zhang, Junjie James, Series Editor, Harvey, David, editor, Kar, Haranath, editor, Verma, Shekhar, editor, and Bhadauria, Vijaya, editor

Published
2021
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44. Clinical and Mechanistic Findings from MOTIF Trial: A Phase 2 Study Using Food Allergen Oral Immunotherapy for Cashew or Shrimp Allergy

Author

Fernandes, Andrea, primary, Cao, Shu, additional, Parsons, Ella, additional, Bogetic, Dinara, additional, Kumar, Divya, additional, Rogers, Jessica, additional, Ghoshal, Debjani, additional, Thompson, Julia, additional, Lyu, Shu-Chen, additional, Dunham, Diane, additional, Do, Evan, additional, Maysel-Auslender, Sofia, additional, Liu, Taryn, additional, Sharma, Reyna, additional, Chin, Andrew, additional, Long, Andrew, additional, Gupta, Sheena, additional, Martinez, Kristine, additional, Manohar, Monali, additional, Desai, Manisha, additional, Maecker, Holden, additional, Nadeau, Kari, additional, Chinthrajah, Sharon, additional, and Sindher, Sayantani, additional

Published
2024
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47. Detection and Classification of Road Signs Using HOG-SVM Method

Author

Dubey, Anant Ram, Shukla, Nidhi, Kumar, Divya, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Elçi, Atilla, editor, Sa, Pankaj Kumar, editor, Modi, Chirag N., editor, Olague, Gustavo, editor, Sahoo, Manmath N., editor, and Bakshi, Sambit, editor

Published
2020
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