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389 results on '"Sharma, Arpit"'

2. Successful management of recalcitrant fungal keratitis with topical caspofungin

Author

Goel, Siddhi, Sharma, Arpit, and Sinha, Rajesh

Subjects
caspofungin, recalcitrant fungal keratitis, echinocandins, fungal corneal ulcer, corneal ulcer healing, Ophthalmology, RE1-994
Abstract

Objective: To report a case of recalcitrant fungal keratitis successfully managed with topical caspofungin acetate in North India.Methods: Case report and literature review.Results: An 18-year-old male patient presented with complaints of redness, watering, pain and diminution of vision in the right eye and was referred to our centre as a case of corneal ulcer. The patient was examined and found to have a near total epithelial defect, with corneal infiltrates approximately 8x8 mm. A provisional diagnosis of polymicrobial keratitis was made based on corneal scraping suggestive of and confocal scan revealing fungal hyphae. The patient failed to respond to topical voriconazole 1%, natamycin 5% and moxifloxacin hydrochloride 0.5% with oral voriconazole. In view of the poor response to these drugs, the patient was subsequently administered topical caspofungin 0.5% in place of natamycin and continued on topical and oral voriconazole, in addition to topical moxifloxacin and cycloplegics, which finally led to healing with minimal scarring. The patient attained a best corrected visual acuity (BCVA) of 6/12.Conclusion: Topical caspofungin may be used as a useful and effective alternative in cases of recalcitrant fungal keratitis. It may result in healing with minimal scarring.

Published
2022
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4. Probabilistic Model Checking of Temporal Interaction Dynamics in the Supreme Court

Author

Das, Susmoy and Sharma, Arpit

Subjects
Computer Science - Logic in Computer Science
Abstract

The Supreme Court plays an extremely critical role in ensuring adherence to the rule of law and in strengthening the democracy. Due to this reason, modeling and analysis of small group interactions in the courtroom setting is an important task as it can help in understanding court decision-making. We apply probabilistic model checking for the modeling and analysis of temporal interaction dynamics in the context of the Supreme Court of the United States. We have used the transcripts of the oral arguments of cases from the Supreme Court for constructing a discrete-time Markov reward model (DTMRM). Next, we formulate interesting queries over interaction by using probabilistic computation tree logic (PCTL) and PCTL with rewards and verify them using a probabilistic symbolic model checker (PRISM). Our experimental results show that probabilistic model checking is very effective in identifying trends, hidden patterns, and how justices behave during the trials. These results not only provide valuable feedback to the justices but may also be used by the advocates and law students for finding better ways to present their arguments in the court., Comment: 20 pages, 1 figure, 11 tables, accepted at the 11th International Symposium DATAMOD 2023: FROM DATA TO MODELS AND BACK

Published
2023

6. Li iontronics in single-crystalline T-Nb2O5 thin films with vertical ionic transport channels.

Author

Han, Hyeon, Jacquet, Quentin, Jiang, Zhen, Sayed, Farheen, Jeon, Jae-Chun, Sharma, Arpit, Schankler, Aaron, Kakekhani, Arvin, Meyerheim, Holger, Park, Jucheol, Nam, Sang, Simonelli, Laura, Rappe, Andrew, Grey, Clare, Parkin, Stuart, and Griffith, Kent

Abstract

The niobium oxide polymorph T-Nb2O5 has been extensively investigated in its bulk form especially for applications in fast-charging batteries and electrochemical (pseudo)capacitors. Its crystal structure, which has two-dimensional (2D) layers with very low steric hindrance, allows for fast Li-ion migration. However, since its discovery in 1941, the growth of single-crystalline thin films and its electronic applications have not yet been realized, probably due to its large orthorhombic unit cell along with the existence of many polymorphs. Here we demonstrate the epitaxial growth of single-crystalline T-Nb2O5 thin films, critically with the ionic transport channels oriented perpendicular to the films surface. These vertical 2D channels enable fast Li-ion migration, which we show gives rise to a colossal insulator-metal transition, where the resistivity drops by 11 orders of magnitude due to the population of the initially empty Nb 4d0 states by electrons. Moreover, we reveal multiple unexplored phase transitions with distinct crystal and electronic structures over a wide range of Li-ion concentrations by comprehensive in situ experiments and theoretical calculations, which allow for the reversible and repeatable manipulation of these phases and their distinct electronic properties. This work paves the way for the exploration of novel thin films with ionic channels and their potential applications.

Published
2023

8. A Review on Artificial Intelligence Techniques for Multilingual SMS Spam Detection

Author

Ramanujam, E., Shankar, K., Sharma, Arpit, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, 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, 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, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, 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, Tan, Kay Chen, Series Editor, Malhotra, Ruchika, editor, Sumalatha, L., editor, Yassin, S. M. Warusia, editor, Patgiri, Ripon, editor, and Muppalaneni, Naresh Babu, editor

Published
2024
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11. Li iontronics in single-crystalline T-Nb2O5 thin films with vertical ionic transport channels

Author

Han, Hyeon, Jacquet, Quentin, Jiang, Zhen, Sayed, Farheen N., Sharma, Arpit, Schankler, Aaron M., Kakekhani, Arvin, Meyerheim, Holger L., Jeon, Jae-Chun, Park, Jucheol, Nam, Sang Yeol, Griffith, Kent J., Simonelli, Laura, Rappe, Andrew M., Grey, Clare P., and Parkin, Stuart S. P.

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Applied Physics
Abstract

The niobium oxide polymorph T-Nb2O5 has been extensively investigated in its bulk form especially for applications in fast-charging batteries and electrochemical (pseudo)capacitors. Its crystal structure that has two-dimensional (2D) layers with very low steric hindrance allows for fast Li-ion migration. However, since its discovery in 1941, the growth of single-crystalline thin films and its electronic applications have not yet been realized, likely due to its large orthorhombic unit cell along with the existence of many polymorphs. Here we demonstrate the epitaxial growth of single-crystalline T-Nb2O5 thin films, critically with the ionic transport channels oriented perpendicular to the film's surface. These vertical 2D channels enable fast Li-ion migration which we show gives rise to a colossal insulator-metal transition where the resistivity drops by eleven orders of magnitude due to the population of the initially empty Nb 4d0 states by electrons. Moreover, we reveal multiple unexplored phase transitions with distinct crystal and electronic structures over a wide range of Li-ion concentrations by comprehensive in situ experiments and theoretical calculations, that allow for the reversible and repeatable manipulation of these phases and their distinct electronic properties. This work paves the way to the exploration of novel thin films with ionic channels and their potential applications.

Published
2022
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15. Retraining DistilBERT for a Voice Shopping Assistant by Using Universal Dependencies

Author

Jayarao, Pratik and Sharma, Arpit

Subjects
Computer Science - Artificial Intelligence, Computer Science - Computation and Language
Abstract

In this work, we retrained the distilled BERT language model for Walmart's voice shopping assistant on retail domain-specific data. We also injected universal syntactic dependencies to improve the performance of the model further. The Natural Language Understanding (NLU) components of the voice assistants available today are heavily dependent on language models for various tasks. The generic language models such as BERT and RoBERTa are useful for domain-independent assistants but have limitations when they cater to a specific domain. For example, in the shopping domain, the token 'horizon' means a brand instead of its literal meaning. Generic models are not able to capture such subtleties. So, in this work, we retrained a distilled version of the BERT language model on retail domain-specific data for Walmart's voice shopping assistant. We also included universal dependency-based features in the retraining process further to improve the performance of the model on downstream tasks. We evaluated the performance of the retrained language model on four downstream tasks, including intent-entity detection, sentiment analysis, voice title shortening and proactive intent suggestion. We observed an increase in the performance of all the downstream tasks of up to 1.31% on average., Comment: Published in the Proceedings of The Fourth Workshop on Reasoning and Learning for Human-Machine Dialogues at the Thirty-Fifth AAAI Conference on Artificial Intelligence (AAAI-21)

Published
2021

17. Face Detection-Based Border Security System Using Haar-Cascade and LBPH Algorithm

Author

Sharma, Arpit, Jayapandian, N., 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, Saraswat, Mukesh, editor, Chowdhury, Chandreyee, editor, Kumar Mandal, Chintan, editor, and Gandomi, Amir H., editor

Published
2023
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21. Using Answer Set Programming for Commonsense Reasoning in the Winograd Schema Challenge

Author

Sharma, Arpit

Subjects
Computer Science - Artificial Intelligence, Computer Science - Computation and Language
Abstract

The Winograd Schema Challenge (WSC) is a natural language understanding task proposed as an alternative to the Turing test in 2011. In this work we attempt to solve WSC problems by reasoning with additional knowledge. By using an approach built on top of graph-subgraph isomorphism encoded using Answer Set Programming (ASP) we were able to handle 240 out of 291 WSC problems. The ASP encoding allows us to add additional constraints in an elaboration tolerant manner. In the process we present a graph based representation of WSC problems as well as relevant commonsense knowledge. This paper is under consideration for acceptance in TPLP., Comment: Paper presented at the 35th International Conference on Logic Programming (ICLP 2019), Las Cruces, New Mexico, USA, 20-25 September 2019, 16 pages

Published
2019

24. Embeddings Between State and Action Based Probabilistic Logics

Author

Das, Susmoy, Sharma, Arpit, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Tapia Tarifa, Silvia Lizeth, editor, and Proença, José, editor

Published
2022
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25. Brain Tumor Classification via UNET Architecture of CNN Technique

Author

Sharma, Arpit Kumar, Nandal, Amita, Dhaka, Arvind, Bogatinoska, Dijana Capeska, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Joshi, Sandeep, editor, Bairwa, Amit Kumar, editor, Nandal, Amita, editor, Radenkovic, Milena, editor, and Avsar, Cem, editor

Published
2022
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26. An Improved and Efficient YOLOv4 Method for Object Detection in Video Streaming

Author

Hussain, Javid, Prathap, Boppuru Rudra, Sharma, Arpit, 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, Shukla, Samiksha, editor, Gao, Xiao-Zhi, editor, Kureethara, Joseph Varghese, editor, and Mishra, Durgesh, editor

Published
2022
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35. Engineering Novel Amphiphilic Platinum(IV) Complexes to Co-Deliver Cisplatin and Doxorubicin.

Author

Jogadi, Wjdan, Kshetri, Man B., Alqarni, Suha, Sharma, Arpit, Cheline, May, Amin, Md Al, Sheets, Cynthia, Nsoure-Engohang, Angele, and Zheng, Yao-Rong

Subjects
FURNACE atomic absorption spectroscopy, MOLECULAR structure, FLUORESCENCE spectroscopy, CISPLATIN, NUCLEAR DNA, DOXORUBICIN
Abstract

In this study, we report a novel platinum–doxorubicin conjugate that demonstrates superior therapeutic indices to cisplatin, doxorubicin, or their combination, which are commonly used in cancer treatment. This new molecular structure (1) was formed by conjugating an amphiphilic Pt(IV) prodrug of cisplatin with doxorubicin. Due to its amphiphilic nature, the Pt(IV)–doxorubicin conjugate effectively penetrates cell membranes, delivering both cisplatin and doxorubicin payloads intracellularly. The intracellular accumulation of these payloads was assessed using graphite furnace atomic absorption spectrometry and fluorescence imaging. Since the therapeutic effects of cisplatin and doxorubicin stem from their ability to target nuclear DNA, we hypothesized that the amphiphilic Pt(IV)–doxorubicin conjugate (1) would effectively induce nuclear DNA damage toward killing cancer cells. To test this hypothesis, we used flow the cytometric analysis of phosphorylated H2AX (γH2AX), a biomarker of nuclear DNA damage. The Pt(IV)–doxorubicin conjugate (1) markedly induced γH2AX in treated MDA-MB-231 breast cancer cells, showing higher levels than cells treated with either cisplatin or doxorubicin alone. Furthermore, MTT cell viability assays revealed that the enhanced DNA-damaging capability of complex 1 resulted in superior cytotoxicity and selectivity against human cancer cells compared to cisplatin, doxorubicin, or their combination. Overall, the development of this amphiphilic Pt(IV)–doxorubicin conjugate represents a new form of combination therapy with improved therapeutic efficacy. [ABSTRACT FROM AUTHOR]

Published
2024
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36. State Space Minimization Preserving Embeddings for Continuous-Time Markov Chains

Author

Das, Susmoy, Sharma, Arpit, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Ballarini, Paolo, editor, Castel, Hind, editor, Dimitriou, Ioannis, editor, Iacono, Mauro, editor, Phung-Duc, Tuan, editor, and Walraevens, Joris, editor

Published
2021
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39. Signature Forgery Recognition Using CNN

Author

Chaurasia, Amit, Agarwal, Harsh, Vishwakarma, Ankur, Dwivedi, Ashish, Sharma, Arpit, 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, Ranganathan, G., editor, Chen, Joy, editor, and Rocha, Álvaro, editor

Published
2021
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43. Automatic Word Embeddings-Based Glossary Term Extraction from Large-Sized Software Requirements

Author

Mishra, Siba, Sharma, Arpit, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Madhavji, Nazim, editor, Pasquale, Liliana, editor, Ferrari, Alessio, editor, and Gnesi, Stefania, editor

Published
2020
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44. Revisiting Trace Equivalences for Markov Automata

Author

Sharma, Arpit, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Woeginger, Gerhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Arbab, Farhad, editor, and Jongmans, Sung-Shik, editor

Published
2020
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