Deepika Kumar

Dr. Deepika Kumar

orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 June 2021 in International Journal of Cognitive Computing in Engineering
Verified
Journal Article
Open access
SKSaloni Kumari
Saloni Kumari
DKDeepika Kumar
Deepika Kumar
MMMamta Mittal
Mamta Mittal

27 July 2020 in IEEE Access
Verified
Journal Article
Open access
DKDeepika Kumar
Deepika Kumar
NJNikita Jain
Nikita Jain
AKAayush Khurana
Aayush Khurana
SMSweta Mittal
Sweta Mittal
SSSuresh Satapathy
Suresh Satapathy
Jude HemanthJude Hemanth
Jude Hemanth
Leukocytes, produced in the bone marrow, make up around one percent of all blood cells. Uncontrolled growth of these white blood cells leads to the birth of blood cancer. Out of the three different types of cancers, the proposed study provides a robust mechanism for the classification of Acute Lymphoblastic Leukemia (ALL) and Multiple Myeloma (MM) using the SN-AM dataset. Acute lymphoblastic leukemia (ALL) is a type of cancer where the bone marrow forms too many lymphocytes. On the other hand, Multiple myeloma (MM), a different kind of cancer, causes cancer cells to accumulate in the bone marrow rather than releasing them into the bloodstream. Therefore, they crowd out and prevent the production of healthy blood cells. Conventionally, the process was carried out manually by a skilled professional in a considerable amount of time. The proposed model eradicates the probability of errors in the manual process by employing deep learning techniques, namely convolutional neural networks. The model, trained on cells’ images, first pre-processes the images and extracts the best features. This is followed by training the model with the optimized Dense Convolutional neural network framework (termed DCNN here) and finally predicting the type of cancer present in the cells. The model was able to reproduce all the measurements correctly while it recollected the samples exactly 94 times out of 100. The overall accuracy was recorded to be 97.2%, which is better than the conventional machine learning methods like Support Vector Machine (SVMs), Decision Trees, Random Forests, Naive Bayes, etc. This study indicates that the DCNN model’s performance is close to that of the established CNN architectures with far fewer parameters and computation time tested on the retrieved dataset. Thus, the model can be used effectively as a tool for determining the type of cancer in the bone marrow.

1 June 2022 in International Journal of Cognitive Computing in Engineering
Verified
Journal Article
Open access
NRNishant Rai
Nishant Rai
DKDeepika Kumar
Deepika Kumar
NKNaman Kaushik
Naman Kaushik
CRChandan Raj
Chandan Raj
AAAhad Ali
Ahad Ali

15 February 2020 in Sensors
Verified
Journal Article
Open access
PDF file
AMAnsh Mittal
Ansh Mittal
DKDeepika Kumar
Deepika Kumar
MMMamta Mittal
Mamta Mittal
TSTanzila Saba
Tanzila Saba
IAIbrahim Abunadi
Ibrahim Abunadi
Sudipta RoySudipta Roy
Sudipta Roy
An entity’s existence in an image can be depicted by the activity instantiation vector from a group of neurons (called capsule). Recently, multi-layered capsules, called CapsNet, have proven to be state-of-the-art for image classification tasks. This research utilizes the prowess of this algorithm to detect pneumonia from chest X-ray (CXR) images. Here, an entity in the CXR image can help determine if the patient (whose CXR is used) is suffering from pneumonia or not. A simple model of capsules (also known as Simple CapsNet) has provided results comparable to best Deep Learning models that had been used earlier. Subsequently, a combination of convolutions and capsules is used to obtain two models that outperform all models previously proposed. These models—Integration of convolutions with capsules (ICC) and Ensemble of convolutions with capsules (ECC)—detect pneumonia with a test accuracy of 95.33% and 95.90%, respectively. The latter model is studied in detail to obtain a variant called EnCC, where n = 3, 4, 8, 16. Here, the E4CC model works optimally and gives test accuracy of 96.36%. All these models had been trained, validated, and tested on 5857 images from Mendeley.

13 July 2018 in ICST Transactions on Scalable Information Systems
Verified
Journal Article
Open access
PDF file
AAAkshay Aggarwal
Akshay Aggarwal
ACAniruddha Chauhan
Aniruddha Chauhan
DKDeepika Kumar
Deepika Kumar
MMMamta Mittal
Mamta Mittal
SVSharad Verma
Sharad Verma
With the ever-increasing rate of information dissemination and absorption, "Fake News" has become a real menace. People these days often fall prey to fake news that is in line with their perception. Checking the authenticity of news articles manually is a time-consuming and laborious task, thus, giving rise to the requirement for automated computational tools that can provide insights about degree of fake ness for news articles. In this paper, a Natural Language Processing (NLP) based mechanism is proposed to combat this challenge of classifying news articles as either fake or real. Transfer learning on the Bidirectional Encoder Representations from Transformers (BERT) language model has been applied for this task. This paper demonstrates how even with minimal text pre-processing, the fine-tuned BERT model is robust enough to perform significantly well on the downstream task of classification of news articles. In addition, LSTM and Gradient Boosted Tree models have been built to perform the task and comparative results are provided for all three models. Fine-tuned BERT model could achieve an accuracy of 97.021% on NewsFN data and is able to outperform the other two models by approximately eight percent.

11 January 2023 in Electronics
Verified
Journal Article
Open access
PDF file
VGVaibhav Gulati
Vaibhav Gulati
DKDeepika Kumar
Deepika Kumar
DPDaniela E. Popescu
Daniela E. Popescu
Jude HemanthJude Hemanth
Jude Hemanth
The quantity of textual data on the internet is growing exponentially, and it is very tough task to obtain important and relevant information from it. An efficient and effective method is required that provides a concise summary of an article. This can be achieved by the usage of automatic text summarization. In this research, the authors suggested an efficient approach for text summarization where an extractive summary is generated from an article. The methodology was modified by integrating a normalized similarity matrix of both BM25+ and conventional TextRank algorithm, which resulted in the improvised results. A graph is generated by taking the sentences in the article as nodes and edge weights as the similarity score between two sentences. The maximum rank nodes are selected, and the summary is extracted. Empirical evaluation of the proposed methodology was analyzed and compared with baseline methods viz. the conventional TextRank algorithm, term frequency–inverse document frequency (TF–IDF) cosine, longest common consequence (LCS), and BM25+ by taking precision, recall, and F1 score as evaluation criteria. ROUGE-1, ROUGE-2, and ROUGE-L scores were calculated for all the methods. The outcomes demonstrate that the proposed method can efficiently summarize any article irrespective of the category it belongs to.