Vijayalakshmi

@srmist.edu.in

Assistant Professor(Sr.G)
SRMIST

RESEARCH INTERESTS

IOT, Image Processing, WSN, Network Security
20

Scopus Publications

280

Scholar Citations

6

Scholar h-index

4

Scholar i10-index

Scopus Publications

  • IoT cloud integration with EfficientNet-B7 for real-time pest monitoring and leaf-based classification
    Sabapathi Shanmugam, Vijayalakshmi Natarajan
    International Journal of Reconfigurable and Embedded Systems, 2026
    The increasing prevalence of pest infestations poses a significant threat to global agricultural productivity, often resulting in substantial yield losses and economic damage. To address this challenge, this paper proposes an intelligent, cloud-enabled pest detection and classification framework leveraging state-of-the-art deep learning techniques. The proposed system integrates YOLOv8 for rapid and accurate pest detection with EfficientNet-B7 for fine-grained species-level classification. The framework is trained and evaluated using the Pestopia dataset, which contains annotated images representing diverse pest species. To enhance data diversity, robustness, and model generalization, data augmentation techniques such as center cropping and horizontal flipping are applied during preprocessing. YOLOv8 is employed to detect and localize pest instances within images, while EfficientNet-B7 extracts high-level discriminative features from detected regions to enable precise species identification. Furthermore, the system incorporates cloud-based real-time monitoring through Adafruit IO, enabling scalable, remote access to pest information for timely decision-making. The performance of the proposed framework is evaluated using standard metrics, including accuracy, precision, recall, and F1-score, achieving values of 97.8%, 98.9%, 98.4%, and 98.9%, respectively. The experimental results demonstrate the effectiveness and reliability of the proposed approach for real-time pest management. The cloud-integrated architecture facilitates proactive pest control strategies, supporting smarter, data-driven agricultural practices, and improved crop protection.
  • A weighted ensemble model combining ARIMA, LSTM, and GBM for robust time series prediction
    A. Vignesh, N. Vijayalakshmi
    Scientific and Technical Journal of Information Technologies Mechanics and Optics, 2025
    Time series forecasting has been used in research and applications in a number of domains such as environmental forecasting, healthcare, finance, supply chain management, and energy consumption. Accurate prediction of future values is necessary for strategic planning operational efficiency and well-informed decision-making regarding time-dependent variables. A hybrid time series forecasting architecture is proposed that combines the strengths of machine learning and statistical models, in particular Gradient Boosting Machines (GBM), Auto-Regressive Integrated Moving Average (ARIMA), and Long Short-Term Memory (LSTM) networks. While LSTM networks and GBM are able to capture complex dependencies and nonlinear patterns, the ARIMA model captures the linear components within the time series. The hybrid model exploits ARIMA interpretability, LSTM temporal memory ability, and GBM ensemble learning efficiency by integrating these three models. Comprehensive experiments conducted on benchmark data sets have shown that the accuracy and reliability of predictions of the proposed hybridization significantly exceeds both individual models and traditional baseline models. The results show that for a variety of real-world applications, hybrid architectures can deliver reliable and accurate time series predictions.
  • Intelligent Solar Panel Monitoring Using Machine Learning and Cloud-Based Predictive Analytics
    J Dhilipan
    Journal of Applied Data Sciences, 2025
  • Early Detection of Brain Tumors Using SOLOv3 Algorithm for Enhanced Diagnostic Accuracy
    Sindhu S, Vijayalakshmi N
    Informatica Slovenia, 2025
    The brain tumor is various types occur in the human brain sometime it affects the human quality of life. The deep learning algorithms gives the better detection of the tumor cell with highly positive result in the earlier stage. In the previous work, the customized Segmenting Objects by Locations Vector 3(SOLOv3) algorithm has been approached, this approach gives the better result compared with the previous algorithms. In the medical field the radiographic images are plays the vital role for identifying the disease from the human body at the same time helps to give the proper treatment on time for avoiding the death ratio. There are many automatic image reorganization techniques were developed in deep learning algorithms. Since the proposed idea is to classify the images based on the plasma level and also detect the levels of infection specified as stage1 to stage 5. To use the Magnetic Resonance Images (MRI) for identifying the tissues which present the human organ with the neoplasm type and size. This kind of information’s are helpful to treat the patient on time and also reduce the death rate due this late treatment or detection of the which level the person may affected. The aim of the proposed article is to develop the customized SOLOv3 algorithm with DESNET201 for improved image segmentation and classification. The real time images were taken from the prescribed reputed Neurological diagnosis center in Chennai. Totally 18759 images were collected under all four categories of tumor and non tumor. Which included 13257 images are tumor images under the category of glioma, meningioma and pituitary and remains comes under non tumor category. The implemented model is to customize the final layer of the neural network form with four different classes will give the better result as 91% in the training set and scored 89% as in the phase of test. This improved model that could combine the SOLOv3 and Desnet201 with customized layer classes for extracting the features used to classify the tumor cells with their different types. The tumor may have more than 150 types of tissues, but gradually these four kinds of classes are very dangerous about to increase the death and spreadable to other body organ. These techniques also able to detect the improved automation for the tumor in Indian children and adults.
  • AI-Powered Enhanced Student Performance Detection Using Deep Optimal Feature Engineering with LSTM Gated Hyper Capsuled Generative Adversarial Neural Network
    Nisha Raveendran, N Vijayalakshmi
    2025 International Conference on Information Implementation and Innovation in Technology I2itcon 2025, 2025
    This paper introduces an AI method to detect student performance enhancements by implementing Deep Optimal Feature Engineering through LSTM Gated Hyper Capsuled Generative Adversarial Neural Network (LSTM-HCGAN). A research dataset about 2392 high school students incorporates demographic, academic, and behavioural measurement variables. Z-score Min-Max normalization acts as a preprocessing technique to normalize features while standardizing important metrics to achieve better model performance. Two methods support the feature engineering procedure: Student Concert Behavior Impact Margin Rate (SCBIR) and Spider Swarm Optimization Feature Selection (SSOFS) which help find the most important features to predict academic results. Predictive modeling occurs through LSTM-HCGAN which allocates Long Short-Term Memory (LSTM) networks to handle sequence modeling alongside Generative Adversarial Networks (GAN) to generate hyperfeatures. The proposed model outperforms other models by delivering an accuracy rate of 92% with a precision of 0.90 and recall of 0.88 and F1-score measurement of 0.91. These performance metrics surpass those of SVM (accuracy: 85%), Random Forest (accuracy: 87%) and Linear Regression (accuracy: 80%). Research data confirm that LSTM-HCGAN demonstrates excellent ability to forecast student academic outcomes which makes it valuable for educational predictive tasks.
  • Advancing Health Diagnostics: AI-Powered CVD-REF Framework for Precise and Early Risk Assessment
    Vishnu Priyan S, Vijayalakshmi N, Suresh G, Rajesh K
    Journal of Machine and Computing, 2025
    Deprivation of Critical Care systems are a major cause of fatality worldwide, highlighting it’s need for saving human lives. This study proposes a novel hybrid ensemble model, which integrates Random Forests, Gradient Boosting Machines (GBM), and Neural Networks to enhance the predictive accuracy diagnostics. The methodology combines data pre-processing, feature selection, and ensemble learning, ensuring robust and reliable predictions. Comprehensive data pre-processing includes K-Nearest Neighbours (KNN) imputation for missing values, Z-Score normalization for scaling, and Polynomial Feature Generation for non-linear feature interactions. Feature selection performed using Recursive Feature Elimination (RFE) and Mutual Information relevant variable retention. The proposed model produces 98.55% accuracy, very surpassing nine baseline models, that includes XGBoost, Random Forests, and Neural Networks. Additional metrics such as precision (97.80%), recall (98.12%), F1-Score (98.00%), and ROC-AUC (99.12%) further validate the model's robustness. This framework not only demonstrates superior accuracy but also ensures computational efficiency, making it viable for deployment in real-world healthcare settings.
  • Deep Reinforcement Learning Based Secure Transmission for UAV-Assisted Mobile Edge Computing
    N. Vijayalakshmi, Sagar Gulati, B. Ben Sujin, B. Madhav Rao, K. Kiran Kumar
    International Journal of Interactive Mobile Technologies, 2024
    The increasing computational demand for real-time mobile applications has led to the development of mobile edge computing (MEC), with support from unmanned aerial vehicles (UAVs), as a promising paradigm for constructing high-throughput line-of-sight links for ground users and pushing computational resources to network edges. Users can reduce processing latency and the load on their local computers by delegating tasks to the UAV in its role as an edge server. The coverage capacity of a single UAV is, however, very limited. Moreover, it will be easy to intercept the data that is transferred to the unmanned aerial vehicle. Thus, for UAV-assisted mobile edge computing, we proposed a transmission technique based on multi-agent deep reinforcement learning in this study. The recommended approach to maximize UAV deployment first applies the particle swarm optimization algorithm. Then, deep reinforcement learning is utilized to optimize the secure offloading to maximize the system utility and minimize the quantity of information eavesdropping, taking into consideration different user task types with diverse preferences for processing time and residual energy of computing equipment. The results of the simulation demonstrate that, in comparison to the single-agent strategy and the benchmark, the multi-agent approach can optimize offloading more successfully and produce higher system utility.
  • Tools to create synthetic data for brain images
    S. Sindhu, N. Vijayalakshmi
    Applications of Synthetic High Dimensional Data, 2024
    In the areas of neuroscience, medical imaging, and machine learning, the creation of synthetic data for brain scans has become a key approach. This chapter explores the concept and significance of synthetic data generation for brain images. In tasks like brain picture segmentation, disease detection, and image analysis, machine learning models perform better when using synthetic data as a catalyst for data augmentation. A wide range of methods and resources including MRI simulators, 3D modeling software, deep learning frameworks, and medical imaging software are used to create synthetic brain images. To guarantee the validity and applicability of synthetic data, however, ethical issues, data representativeness, and transparency in the generation process continue to be essential factors. Synthetic brain data are becoming more useful and realistic as technology develops, and this has the potential to completely change the fields of neuroscience and medical imaging.
  • THE ELEVATION OF EFFICACY IDENTIFYING PITUITARY TISSUE ABNORMALITIES WITHIN BRAIN IMAGES BY EMPLOYING MEMORY CONTRAST LEARNING TECHNIQUES
    Journal of Applied Mathematics and Informatics, 2024
  • Time Series Modeling and Forecasting Using Autoregressive Integrated Moving Average and Seasonal Autoregressive Integrated Moving Average Models
    Vignesh Arumugam, Vijayalakshmi Natarajan
    Instrumentation Mesure Metrologie, 2023
    Time series analysis is pivotal in discerning temporospatial data patterns and facilitating precise forecasts. This study scrutinizes the cardinal challenges associated with time series modeling, namely stationarity, parsimony, and overfitting, focusing on the application of Autoregressive Integrated Moving Average (ARIMA) and Seasonal Autoregressive Integrated Moving Average (SARIMA) models. An examination of six datasets reveals that these models adeptly encapsulate underlying data trends, enabling reliable predictions and yielding insightful conclusions. Relative to baseline methods, the proposed models demonstrate superior performance, as indicated by five evaluation metrics: Mean Squared Error (MSE), Frantic, Root Mean Squared Error (RMSE), Mean Absolute Percentage Error (MAPE), and Theil's U-statistics. The most parsimonious ARIMA or SARIMA model was selected for each dataset, with the resultant forecast summary graphically demonstrating the proximity between original and predicted observations. This study aims to contribute to the discourse on the validity and applicability of ARIMA and SARIMA models in time series analysis and forecasting.
  • Impact of machine learning algorithms in decision-making with serious games in the education and healthcare sectors
    R. Sivasankari, S. Sindhu, J. Dhilipan, N. Vijayalakshmi
    Handbook of Research on Decision Making Capabilities Improvement with Serious Games, 2023
  • DETECTION AND CLASSIFICATION OF PEST IN CROPS USING SINGLE SHOT MULTI-BOX DETECTOR
    Journal of the Balkan Tribological Association, 2023
  • ACCIDENT PREVENTION AND DRIVER SAFETY USING IOT AND MACHINE LEARNING
    Journal of the Balkan Tribological Association, 2023
  • Performance and efficiency of different types of solar cell material – A review
    J. Dhilipan, N. Vijayalakshmi, D.B. Shanmugam, R. Jai Ganesh, S. Kodeeswaran, S. Muralidharan
    Materials Today Proceedings, 2022
  • Internet of Thing-Based Monitoring Systems and Their Applications
    N. Vijayalakshmi, S. Sindhu, J. Dhilipan
    Smart Computing and Self Adaptive Systems, 2021
  • Automatic vehicle number recognition system using character segmentation and morphological algorithm
    N. Vijayalakshmi, S. Sindhu, S. Suriya
    Proceedings of 2020 IEEE International Conference on Advances and Developments in Electrical and Electronics Engineering Icadee 2020, 2020
  • Network monitoring system using ping methodology and GUI
    J. Dhillipan, N. Vijayalakshmi, S. Suriya
    Intelligent Systems Reference Library, 2019
  • A spam classification framework using orthogonal local preserving projection and multi-objective deep neural network classifier
    N Vijayalakshmi, P Vivekanandan
    Journal of Computational and Theoretical Nanoscience, 2016
  • Extended internet security with restricted client side scripts(rcss) from phishing attacks for qos improvement
    International Journal of Applied Engineering Research, 2014
  • An overview of route discovery mechanisms of multicast routing protocols for MANETs
    International Journal of Engineering and Technology, 2013

RECENT SCHOLAR PUBLICATIONS

  • A Multi-Layered Framework for Adaptive and Optimized Real-Time Data Processing in Edge-Fog IoT Environments
    GSP Ghantasala, I Ioannou, T Kolla, P Vidyullatha, N Vijayalakshmi, ...
    IEEE Internet of Things Journal , 2026
    2026
  • Early Diagnosis of Skin Cancer Through IoT Devices and Deep Convolutional Neural Networks
    T Kolla, GSP Ghantasala, N Vijayalakshmi
    2025 1st International Conference on Advancement in Futuristic Technologies … , 2025
    2025
  • Early Detection of Brain Tumors Using SOLOv3 Algorithm for Enhanced Diagnostic Accuracy
    S Sindhu, N Vijayalakshmi
    Informatica 49 (27) , 2025
    2025
  • Pattern Discovery in Genomic Sequences Using Advanced Data Mining Algorithms
    GGS Pradeep, T Kolla, N Vijayalakshmi, U Ananthanagu, ...
    World Conference on Information Systems for Business Management, 440-449 , 2025
    2025
  • Fuzzy-Neural Hybrid Models for Early Detection of Neurodegenerative Disorders Using Multimodal Medical Data and Temporal Pattern Analysis
    GGS Pradeep, T Kolla, R Rajesh Sharma, A Sungheetha, ...
    World Conference on Information Systems for Business Management, 174-183 , 2025
    2025
  • Optimizing Feature Selection for Medical Diagnosis Systems Using Differential Evolution
    GGS Pradeep, T Kolla, N Vijayalakshmi, R Sharma R
    World Conference on Information Systems for Business Management, 213-222 , 2025
    2025
  • Temporal Pattern Recognition in IoT Sensor Streams Using Spatio-Temporal Reasoning
    GGS Pradeep, T Kolla, RR Sharma, A Sungheetha, N Vijayalakshmi, ...
    World Conference on Information Systems for Business Management, 390-399 , 2025
    2025
  • Adaptive Ambient Intelligence: Machine Learning Models for Context Prediction in Ubiquitous Systems
    GGS Pradeep, T Kolla, RS R, A Sungheetha, N Vijayalakshmi, ...
    World Conference on Information Systems for Business Management, 256-265 , 2025
    2025
  • RNN-based Prediction and Risk Classifcation for Improving Endometrial Cancer Diagnosis using Clinical and Imaging Data
    GSP Ghantasala, K Thrilok, P Vidyullatha, N Vijayalakshmi, R Sharma, ...
    2025 5th International Conference on Soft Computing for Security … , 2025
    2025
  • Surgical Strategies in Primary Fallopian Tube Cancer: A Gynecologic Oncology Perspective
    T Kolla, GSP Ghantasala, P Vidyullatha, R Sharma, N Vijayalakshmi, ...
    2025 5th International Conference on Soft Computing for Security … , 2025
    2025
  • AI-Powered Enhanced Student Performance Detection Using Deep Optimal Feature Engineering with LSTM Gated Hyper Capsuled Generative Adversarial Neural Network
    N Raveendran, N Vijayalakshmi
    2025 International Conference on Information, Implementation, and Innovation … , 2025
    2025
  • Intelligent Solar Panel Monitoring Using Machine Learning and Cloud-Based Predictive Analytics
    J Dhilipan, N Vijayalakshmi, DB Shanmugam, SS Maidin, WL Shing
    Journal of Applied Data Sciences 6 (3), 1599-1610 , 2025
    2025
    Citations: 3
  • Artificial Intelligence and Human-Centered in Linguistic Analysis: Self-Regulated Learning and Development
    R N., Vijayalakshmi, N. , R., Saravanan, R. , R., Jayalakshmi, R. , R., Rekha
    Journal of Information Systems Engineering and Management, 10 (11), 361-370 , 2025
    2025
  • A weighted ensemble model combining ARIMA, LSTM, and GBM for robust time series prediction
    A Vignesh, N Vijayalakshmi
    Научно-технический вестник информационных технологий, механики и оптики 25 … , 2025
    2025
    Citations: 1
  • Prediction of electricity consumption using an innovative deep energy predictor model for enhanced accuracy and efficiency
    C Ragupathi, S Dhanasekaran, N Vijayalakshmi, AO Salau
    Energy Reports 12, 5320-5337 , 2024
    2024
    Citations: 31
  • Adaptive Vehicle Control System for Improved Safety With Image Processing
    N Vijayalakshmi, L Priya, S Ramaraj, M Nanjundan, SK Palanisamy, ...
    2024 IEEE 5th International Conference on Electro-Computing Technologies for … , 2024
    2024
  • Review on Student Performance Evaluation System for E-Learning
    N Raveendran, N Vijayalakshmi
    Human Machine Interaction in the Digital Era, 161-170 , 2024
    2024
  • Design and Development of a Shamrock Leaf-Shaped Fractal Antenna with Integrated Filtering for WLAN/WiMAX Applications
    SK Palanisamy, N Sathishkumar, T Nivethitha, N Vijayalakshmi, ...
    University of Bahrain , 2024
    2024
  • Deep Reinforcement Learning Based Secure Transmission for UAV-Assisted Mobile Edge Computing
    KKK N. Vijayalakshmi1, Sagar Gulati, B. Ben Sujin, B. Madhav Rao
    International journal of Interactive Mobile Technologies 18 (17), 154-169 , 2024
    2024
    Citations: 3
  • The elevation of efficacy identifying pituitary tissue abnormalities within brain images by employing memory contrast learning techniques
    S Sindhu, N Vijayalakshmi
    Journal of applied mathematics & informatics, 931-943 , 2024
    2024
    Citations: 1

MOST CITED SCHOLAR PUBLICATIONS

  • Prediction of Students Performance using Machine learning
    SS N.Vijayalakshmi,J.Dhilipan
    IOP Conf. Series: Materials Science and Engineering, 1-8 , 2021
    2021
    Citations: 72
  • Performance and efficiency of different types of solar cell material–A review
    J Dhilipan, N Vijayalakshmi, DB Shanmugam, RJ Ganesh, ...
    Materials Today: Proceedings 66, 1295-1302 , 2022
    2022
    Citations: 64
  • Time Series Modeling and Forecasting Using Autoregressive Integrated Moving Average and Seasonal Autoregressive Integrated Moving Average Models.
    VN Vignesh A
    Instrumentation Mesure Metrologie 22 (4), 161-168 , 2023
    2023
    Citations: 46
  • Prediction of electricity consumption using an innovative deep energy predictor model for enhanced accuracy and efficiency
    C Ragupathi, S Dhanasekaran, N Vijayalakshmi, AO Salau
    Energy Reports 12, 5320-5337 , 2024
    2024
    Citations: 31
  • Vehicle tracking and locking system based on gsm and gps
    N Vijayalakshmi, R Shrinithi, V Sanjana, T Sowmiya
    2021 7th International Conference on Advanced Computing and Communication … , 2021
    2021
    Citations: 9
  • Network monitoring system using ping methodology and GUI
    J Dhillipan, N Vijayalakshmi, S Suriya
    Recent Trends and Advances in Artificial Intelligence and Internet of Things … , 2019
    2019
    Citations: 7
  • A Novel IoT Based Power Monitoring System
    JSD S.Suriya, Agusthiyar R ,N.Vijayalakshmi
    IOP Conf. Series: Materials Science and Engineering, 1-7 , 2021
    2021
    Citations: 6
  • Automatic vehicle number recognition system using character segmentation and morphological algorithm
    N Vijayalakshmi, S Sindhu, S Suriya
    2020 IEEE International Conference on Advances and Developments in … , 2020
    2020
    Citations: 5
  • Automotive authentication using IoT
    N Vijayalakshmi, S Kiruthiga, AP Hariprasath, K Arunachalam, DR KK
    2020 6th International Conference on Advanced Computing and Communication … , 2020
    2020
    Citations: 5
  • A Secure Wild Animals Alert System for Preventing the Farming Land using IoT
    DBS Dr.J.Dhillipan,Dr.N.Vijayalakshmi,S.Suriya
    International Journal of Recent Technology and Engineering 8 (5), 5585-5587 , 2020
    2020
    Citations: 5
  • Intelligent Solar Panel Monitoring Using Machine Learning and Cloud-Based Predictive Analytics
    J Dhilipan, N Vijayalakshmi, DB Shanmugam, SS Maidin, WL Shing
    Journal of Applied Data Sciences 6 (3), 1599-1610 , 2025
    2025
    Citations: 3
  • Deep Reinforcement Learning Based Secure Transmission for UAV-Assisted Mobile Edge Computing
    KKK N. Vijayalakshmi1, Sagar Gulati, B. Ben Sujin, B. Madhav Rao
    International journal of Interactive Mobile Technologies 18 (17), 154-169 , 2024
    2024
    Citations: 3
  • Approaches to Teaching Programming: a comprehensive review and analysis
    DB Shanmugam, N Vijayalakshmi, N Revathi
    Research in Multidisciplinary Subjects (Volume-2), 53 , 2023
    2023
    Citations: 3
  • An optimal low power digital controller for portable solar applications
    N Vijayalakshmi, P Maruthupandi
    Journal of Renewable and Sustainable Energy 10 (5) , 2018
    2018
    Citations: 3
  • Low energy adaptive clustering hierarchy--redundancy aware protocol (LEACH-RA)
    E Sivajothi, N Vijayalakshmi, A Swaminathan, P Vivekanandan
    Advances in Natural and Applied Sciences 9 (13), 1-7 , 2015
    2015
    Citations: 3
  • An Overview of Route Discovery Mechanisum of Multicast Routing Protocols for MANETs
    N Sivajothi, E, Vivekanandan, P & Vijayalakshmi
    International Journal of Engineering and Technology , 2013
    2013
    Citations: 3
  • Efficiency and Limitations of Secure Protocol in E-mail Services
    ES N.Vijayalakshmi, P.Vivekanandan
    International Journal of Engineering Sciences & Research Technology, 539-544 , 2012
    2012
    Citations: 3
  • Tools to Create Synthetic Data for Brain Images
    S Sindhu, N Vijayalakshmi
    Applications of Synthetic High Dimensional Data, 179-208 , 2024
    2024
    Citations: 2
  • Internet of Thing-Based Monitoring Systems and Their Applications
    N Vijayalakshmi, S Sindhu, J Dhilipan
    Smart Computing and Self-Adaptive Systems, 133-152 , 2021
    2021
    Citations: 2
  • A weighted ensemble model combining ARIMA, LSTM, and GBM for robust time series prediction
    A Vignesh, N Vijayalakshmi
    Научно-технический вестник информационных технологий, механики и оптики 25 … , 2025
    2025
    Citations: 1