Computer Science, Computer Science Applications, Information Systems, Artificial Intelligence
53
Scopus Publications
616
Scholar Citations
14
Scholar h-index
18
Scholar i10-index
Scopus Publications
Energy and makespan optimised task mapping in fog enabled IoT application: a hybrid approach Niva Tripathy, Sampa Sahoo, Norah Saleh Alghamdi, Wattana Viriyasitavat, Gaurav Dhiman Scientific Reports, 2026 The Internet of Things (IoT) points to billions of connected devices that share data through the Internet. However, the increasing volume of data generated by IoT devices makes remote cloud data centers inefficient for delay-sensitive applications. In this regard, fog computing, which brings computation closer to the data source, plays a significant role in addressing the above issue. However, resource constraints in fog computing demand an effective task-scheduling technique to handle the enormous volume of data. Many researchers have proposed a variety of heuristic and meta-heuristic approaches for effective scheduling; however, there is still scope for improvement. In this paper, we propose EMAPSO (energy makespan-aware PSO). The simultaneous minimization of makespan and energy is presented as a bi-objective optimization problem. The approach also considered the load-balancing factor while assigning a task to a VM in a fog/cloud environment. The proposed algorithm, EMAPSO, is compared to standard PSO, Modified PSO (MPSO), Bird swarm optimization (BSO), and the Bee Life Algorithm (BLA). The experimental results show that the proposed method outperforms the compared algorithms in terms of resource utilization, makespan, and energy consumption.
Z-Secure: Chaos-Enhanced Facial Biometric Key Generation for Secure Image Encryption with Anti-Spoofing Protection and Multi-Modal Liveness Detection Subhashis Ghosh, Ipsita Giri, Shubhjeet Khan, Gourishankar Mohapatra, Sampa Sahoo Proceedings of the 4th IEEE International Conference on Interdisciplinary Approaches in Technology and Management for Social Innovation Iatmsi 2026, 2026 Image encryption systems increasingly rely on biometric authentication for security, yet face critical vulnerabilities in key generation, template storage, and spoofing attacks. This paper presents Z-Secure, a novel framework that leverages facial biometric features enhanced with Lorenz attractor chaos theory for robust image encryption. The system extracts 128-dimensional facial encodings using deep convolutional neural networks and applies chaos-based transformations to generate cryptographic keys through PBKDF2 derivation. A multi-modal liveness detection mechanism using MediaPipe Face Mesh with 468 landmarks prevents presentation attacks through eye aspect ratio analysis, head pose estimation, and texture variance measurement. Implementing AES-256-(Cipher Block Chaining))encryption within a zero-knowledge architecture, the system achieves 99.61% NPCR and 33.46% UACI for encrypted images, indicating excellent cryptographic quality. Experimental results demonstrate 47.6% entropy improvement over traditional biometric systems, 96.2% liveness detection accuracy against spoofing attacks, and complete image encryption/decryption within 721ms. The framework provides irreversible template protection, cross-session unlinkability, and user-controlled key revocability, making it suitable for privacy-preserving image security applications.
An efficient camouflaged image segmentation with modified UNet and attention techniques Isha Padhy, Prabhat Dansena, Sampa Sahoo, Rahul Priyadarshi Scientific Reports, 2025 Camouflaged object segmentation (COS) is a challenging task in computer vision where the objective is to recognize and precisely separate objects that blend in with their environment. Traditional models, including the standard UNet architecture, struggle with this task due to ambiguous object boundaries, texture similarity between object and background, and over-segmentation or under-segmentation caused by redundant skip connections. CAMO-UNet addresses these issues by including residual blocks which improve feature learning by easing the gradient flow and enabling deeper architectures. The attention mechanism focuses on 'what' is important, 'where' important features are located in the spatial domain and captures long-range dependencies across the image. The Depth-aware triangular cyclic learning rate (CLR) dynamically adjusts learning rates at different network depths to enhance training efficiency. CAMO-UNet achieved 93.8% accuracy on benchmark datasets and outperformed state-of-the-art models like SINet, BGNet, PFNet, etc., in metrics including S-measure, F-measure, MAE, and accuracy.
Comparative Analysis of Geographical Distance Methods: Haversine, Spherical Law of Cosines, Vincenty, Karney, and Great Elliptic Distance Tanishq Vats, Satyam Kumar, Ujjwal Kumar Sinha, Sampa Sahoo 2025 IEEE 4th World Conference on Applied Intelligence and Computing Aic 2025, 2025 Accurate geodesic distance calculations are essential for navigation, geospatial services, and edge computing. This study compares five methods—Haversine, Spherical Law of Cosines, Vincenty, Karney, and Great Elliptic Distance—on accuracy, computational time, and memory usage using 10,000 random coordinate pairs. Vincenty and Karney achieved zero error but required higher computation times (5.54 s and 4.11s), while Haversine and Cosine were fastest (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{0}. \mathbf{3 s}$</tex>) with minor errors (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\tilde{\mathbf{0}}. 16 \%$</tex> MAPE). Great Elliptic offered balanced performance (<tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mathbf{0}. \mathbf{1 8} \boldsymbol{\%}$</tex> MAPE). The findings reveal trade-offs between precision and efficiency, guiding the selection of methods for edge server deployment.
U-Net: A Binary Segmentation Architecture for Building Localization in Structural Health Monitoring using the xBD Dataset Sakshi Suwarna, Sampa Sahoo, Tanisha, Sanchali Srivastava, Khushi Raj Das, Surendra Kumar Panda 3rd International Conference on Microwave Optical and Communication Engineering Icmoce 2025, 2025 Structural Health Monitoring (SHM) is essential in disaster scenarios, providing critical support for building localization, accurate damage assessment, and effective classification of damage severity. SHM refers to the process of monitoring and tracking the condition of engineering structures over a period of time to detect damages, deterioration or potential failures. Localization in such scenarios aids in identifying the buildings and generating ground truth. Traditional techniques of damage assessment are often manual and increases the labor cost due to onsite inspection. This paper aims to propose a methodology based on image segmentation which includes UNet, a Deep Neural Network(DNN) based architecture with a ResNet-50 encoder and custom decoder. It is used to detect and localize buildings from the predicted masks and classify them as Building Detected(1) and No Building(0) based on the probability scores. The proposed approach has achieved a test accuracy of 0.9727 and an Intersection over Union (IoU) score of 0.6289 and a Dice Coefficient score of 0.7721 on all 11 disaster types present in the xBD dataset. The proposed model is further compared with other segmentation architectures like Fully Convolutional Networks (FCNs) and Attention U-Net based on IoU and Dice Coefficient scores. The proposed model shows better performance as compared to the existing models.
A learning automata based edge resource allocation approach for IoT-enabled smart cities Sampa Sahoo, Kshira Sagar Sahoo, Bibhudatta Sahoo, Amir H. Gandomi Digital Communications and Networks, 2024 The development of the Internet of Things (IoT) technology leading to a new era of smart applications such as smart transportation, buildings, and smart homes. Moreover, these applications act as the building blocks of IoT-enabled smart cities. The high volume and high velocity of data generated by various smart city applications are sent to flexible and efficient cloud computing resources for processing. However, there is a high computation latency due to the presence of a remote cloud server. Edge computing, which brings the computation close to the data source is introduced to overcome this problem. In an IoT-enabled smart city environment, one of the main concerns is to consume the least amount of energy while executing tasks that satisfy the delay constraint. An efficient resource allocation at the edge is helpful to address this issue. In this paper, an energy and delay minimization problem in a smart city environment is formulated as a bi-objective edge resource allocation problem. First, we presented a three-layer network architecture for IoT-enabled smart cities. Then, we designed a learning automata-based edge resource allocation approach considering the three-layer network architecture to solve the said bi-objective minimization problem. Learning Automata (LA) is a reinforcement-based adaptive decision-maker that helps to find the best task and edge resource mapping. An extensive set of simulations is performed to demonstrate the applicability and effectiveness of the LA-based approach in the IoT-enabled smart city environment.
Cloud computing for a secure smart city beyond 5G Manoj Kumar Patra, Sampa Sahoo, Bibhudatta Sahoo, Ashok Kumar Turuk Secure and Intelligent Iot Enabled Smart Cities, 2024 As the evolution of technology ushers in an era beyond 5G, integrating cloud computing into the landscape of smart cities becomes paramount. This chapter delves into the foundational concept of cloud computing and elucidates its pivotal role in shaping the future of secure and connected smart cities. With its on-demand services, scalability, and cost-effectiveness, cloud computing emerges as a key enabler for handling the intricate demands of urban environments. The chapter begins by defining cloud computing and providing an overview of its essential characteristics. It then pivots to the dynamic context of smart cities, where an intricate web of internet of things (IoT) devices, sensors, and urban systems generate copious amounts of data. Cloud computing offers a robust solution for storing, processing, and analyzing this data, empowering smart cities with real-time insights and informed decision-making capabilities. This chapter explores the synergy between cloud computing and 5G networks, emphasizing the importance of high-speed connectivity and low latency in the smart city paradigm. The integration of edge computing further enriches the smart city infrastructure, enabling rapid local processing and reducing latency for time-sensitive applications. Security, a paramount concern in smart city environments, is addressed as the chapter delves into the challenges and solutions provided by cloud computing. The role of cloud platforms in safeguarding citizen data, managing cyber-physical threats, and ensuring compliance with regulatory frameworks is thoroughly examined. This chapter also explores emerging trends, such as the integration of artificial intelligence and blockchain technologies, offering a glimpse into the future of cloud computing in the smart city landscape. In conclusion, this chapter not only defines the synergy between cloud computing and smart cities but also provides a comprehensive understanding of how cloud computing, in the context of 5G and beyond, is instrumental in fostering secure, connected, and resilient urban environments.
Energy efficient routing in software defined networking by efficient traffic rule monitoring techniques Journal of Advanced Research in Dynamical and Control Systems, 2018
Deadline-constraint services in cloud with heterogeneous servers Sampa Sahoo, Sambit Kumar Mishra, Bibhudatta Sahoo, Deepak Puthal, Mohammad S. Obaidat IEEE Cits 2017 2017 International Conference on Computer Information and Telecommunication Systems, 2017
Execution of real time task on cloud environment Sampa Sahoo, Syed Nawaz, Sambit Kumar Mishra, Bibhudatta Sahoo 12th IEEE International Conference Electronics Energy Environment Communication Computer Control E3 C3 Indicon 2015, 2016
Improving energy consumption in cloud Sambit Kumar Mishra, Reenu Deswal, Sampa Sahoo, Bibhudatta Sahoo 12th IEEE International Conference Electronics Energy Environment Communication Computer Control E3 C3 Indicon 2015, 2016
Energy and makespan optimised task mapping in fog enabled IoT application: a hybrid approach N Tripathy, S Sahoo, NS Alghamdi, W Viriyasitavat, G Dhiman Scientific Reports , 2026 2026 Citations: 2
An efficient task offloading approach to reduce energy consumption in fog architecture N Tripathy, S Sahoo, SC Nayak, CC Lee Computers and Electrical Engineering 128, 110648 , 2025 2025 Citations: 5
Camouflaged object detection using hybrid-deep learning model I Padhy, VKR CH, P Kanungo, S Sahoo Multimedia Tools and Applications 84 (26), 31771-31791 , 2025 2025 Citations: 4
Comparative Analysis of Geographical Distance Methods: Haversine, Spherical Law of Cosines, Vincenty, Karney, and Great Elliptic Distance T Vats, S Kumar, UK Sinha, S Sahoo 2025 IEEE 4th World Conference on Applied Intelligence and Computing (AIC … , 2025 2025 Citations: 1
An efficient camouflaged image segmentation with modified UNet and attention techniques I Padhy, P Dansena, S Sahoo, R Priyadarshi Scientific Reports 15 (1), 21086 , 2025 2025 Citations: 2
U-Net: A Binary Segmentation Architecture for Building Localization in Structural Health Monitoring using the xBD Dataset S Suwarna, S Sahoo, S Srivastava, KR Das, SK Panda 2025 International Conference on Microwave, Optical, and Communication … , 2025 2025 Citations: 1
A learning automata based edge resource allocation approach for IoT-enabled smart cities S Sahoo, KS Sahoo, B Sahoo, AH Gandomi Digital Communications and Networks 10 (5), 1258-1266 , 2024 2024 Citations: 11
Fake News Detection Using Passive Aggressive Classifier (PAC) & Neural Network: A Hybrid Approach OP Mohanta, G Swain, K Ashutosh, A Padhy, S Sahoo 2024 IEEE International Conference on Smart Power Control and Renewable … , 2024 2024
Cloud computing for a secure smart city beyond 5G MK Patra, S Sahoo, B Sahoo, AK Turuk Secure and Intelligent IoT-Enabled Smart Cities, 91-116 , 2024 2024 Citations: 6
Energy Aware Task Scheduling in IoT Based Fog Environment N Tripathy, S Sahoo, SC Nayak 2023 OITS International Conference on Information Technology (OCIT), 886-891 , 2023 2023
Energy Aware Effective Task Offloading Mechanism in Fog Computing N Tripathy, S Sahoo International Conference on Computing, Communication and Learning, 272-284 , 2023 2023 Citations: 3
Multiclass classification of camouflage images using combined wld and lpq feature set using a ann classifier I Padhy, P Kanungo, S Sahoo International Conference on Advances in Signal Processing And Communication … , 2023 2023 Citations: 1
A YCBCR model based shadow detection and removal approach on camouflaged images I Padhy, P Kanungo, S Sahoo 2022 OITS International Conference on Information Technology (OCIT), 574-579 , 2022 2022 Citations: 3
Modeling Internet of Things-Based Solution for Evading Congestion and Blockage in Waterways M Rao, NK Kamila, S Sahoo, KV Kumar Biologically Inspired Techniques in Many Criteria Decision Making … , 2022 2022
Queuing Theory-Based Analysis of Berth Allocation and Management in Paradip Port for Container Ships M Rao, NK Kamila, KV Kumar, D Mishra, S Sahoo Electronic Systems and Intelligent Computing: Proceedings of ESIC 2021, 433-440 , 2022 2022 Citations: 1
Design of An Authentication Scheme for Cloud-Based IoT Applications S Sahoo, S Swagatika Sahoo, B Sahoo, A Kumar Turuk IETE Technical Review 39 (2), 343-356 , 2022 2022 Citations: 4
Cloud-Edge Centric Service Provisioning in Smart City Using Internet of Things MK Patra, S Sahoo, B Sahoo, AK Turuk Advances in Parallel & Distributed Processing, and Applications: Proceedings … , 2021 2021 Citations: 4
An auction based edge resource allocation mechanism for IoT-enabled smart cities S Sahoo, KS Sahoo, B Sahoo, AH Gandomi 2020 IEEE Symposium Series on Computational Intelligence (SSCI), 1280-1286 , 2020 2020 Citations: 16
Energy-efficient service allocation techniques in cloud: A survey SK Mishra, S Sahoo, B Sahoo, SK Jena IETE Technical Review 37 (4), 339-352 , 2020 2020 Citations: 29
Modified Grey Wolf Optimization (GWO) based Accident Deterrence in Internet of Things (IoT) enabled Mining Industry D Majhi, M Rao, S Sahoo, SP Dash, DP Mohapatra 2020 International Conference on Computer Science, Engineering and … , 2020 2020 Citations: 7
MOST CITED SCHOLAR PUBLICATIONS
Toward secure software-defined networks against distributed denial of service attack: KS Sahoo et al. KS Sahoo, SK Panda, S Sahoo, B Sahoo, R Dash The Journal of Supercomputing 75 (8), 4829-4874 , 2019 2019 Citations: 83
On the placement of controllers for designing a wide area software defined networks KS Sahoo, S Sahoo, A Sarkar, B Sahoo, R Dash TENCON 2017-2017 IEEE Region 10 Conference, 3123-3128 , 2017 2017 Citations: 52
A learning automata-based scheduling for deadline sensitive task in the cloud S Sahoo, B Sahoo, AK Turuk IEEE Transactions on Services Computing 14 (6), 1662-1674 , 2019 2019 Citations: 49
Execution of real time task on cloud environment S Sahoo, S Nawaz, SK Mishra, B Sahoo 2015 Annual IEEE India Conference (INDICON), 1-5 , 2015 2015 Citations: 36
NAVIGATION OF AUTONOMOUS MOBILE ROBOT USING DIFFERENT ACTIVATION FUNCTIONS OF WAVELET NEURAL NETWORK P K PANIGRAHI ,S SAHOO International conference on convergence of Technology-2014 , 2014 2014 Citations: 34
Energy-efficient service allocation techniques in cloud: A survey SK Mishra, S Sahoo, B Sahoo, SK Jena IETE Technical Review 37 (4), 339-352 , 2020 2020 Citations: 29
Software defined network: the next generation internet technology KS Sahoo, SK Mishra, S Sahoo, B Sahoo Modern Education and Computer Science Press , 2017 2017 Citations: 29
Allocation of energy-efficient task in cloud using DVFS SK Mishra, MA Khan, S Sahoo, B Sahoo International Journal of Computational Science and Engineering 18 (2), 154-163 , 2019 2019 Citations: 25
Game theoretic approach for real-time task scheduling in cloud computing environment MK Patra, S Sahoo, B Sahoo, AK Turuk 2019 International Conference on Information Technology (ICIT), 454-459 , 2019 2019 Citations: 23
Improving energy consumption in cloud SK Mishra, R Deswal, S Sahoo, B Sahoo 2015 Annual IEEE India Conference (INDICON), 1-6 , 2015 2015 Citations: 22
Improving energy usage in cloud computing using DVFS SK Mishra, PP Parida, S Sahoo, B Sahoo, SK Jena Progress in Advanced Computing and Intelligent Engineering: Proceedings of … , 2018 2018 Citations: 20
Metaheuristic techniques for controller placement in Software-Defined networks S Mohanty, P Priyadarshini, S Sahoo, B Sahoo, S Sethi TENCON 2019-2019 IEEE Region 10 Conference (TENCON), 897-902 , 2019 2019 Citations: 17
An auction based edge resource allocation mechanism for IoT-enabled smart cities S Sahoo, KS Sahoo, B Sahoo, AH Gandomi 2020 IEEE Symposium Series on Computational Intelligence (SSCI), 1280-1286 , 2020 2020 Citations: 16
An energy-efficient scheduling framework for cloud using learning automata S Sahoo, B Sahoo, AK Turuk 2018 9th International Conference on Computing, Communication and Networking … , 2018 2018 Citations: 16
A learning automata-based DDoS attack defense mechanism in software defined networks KS Sahoo, M Tiwary, S Sahoo, R Nambiar, B Sahoo, R Dash Proceedings of the 24th annual international conference on mobile computing … , 2018 2018 Citations: 14
A lightweight authentication scheme for cloud-centric IoT applications S Sahoo, SS Sahoo, P Maiti, B Sahoo, AK Turuk 2019 6th International Conference on Signal Processing and Integrated … , 2019 2019 Citations: 13
A learning automata based edge resource allocation approach for IoT-enabled smart cities S Sahoo, KS Sahoo, B Sahoo, AH Gandomi Digital Communications and Networks 10 (5), 1258-1266 , 2024 2024 Citations: 11
Real time task execution in cloud using mapreduce framework S Sahoo, B Sahoo, AK Turuk, SK Mishra Resource management and efficiency in cloud computing environments, 190-209 , 2017 2017 Citations: 10
Analyzing controller placement in software defined networks KS Sahoo, S Sahoo, SK Mishra, S Mohanty, B Sahoo International Journal of Computer Applications 975, 8887 , 2016 2016 Citations: 8
Modified Grey Wolf Optimization (GWO) based Accident Deterrence in Internet of Things (IoT) enabled Mining Industry D Majhi, M Rao, S Sahoo, SP Dash, DP Mohapatra 2020 International Conference on Computer Science, Engineering and … , 2020 2020 Citations: 7