CSBAM-MobileNet: a lightweight attention-enhanced deep learning model for student attentiveness classification Sajja Radharani, Venkatramaphanikumar Sistla, Venkata Krishna Kishore Kolli Engineering Science and Technology an International Journal, 2026 Emotions significantly influence behaviour and decision-making, making the assessment of student attentiveness a critical factor in optimizing learning outcomes. This paper introduces a vision-based deep learning framework designed to evaluate student attentiveness through facial expression analysis. Leveraging a Customized lightweight MobileNet architecture enhanced with Channel and Spatial Attention Mechanisms (CSBAM), the model efficiently captures subtle facial cues relevant to attentiveness, such as eye closure, gaze direction, and mouth movements. A custom classroom expression dataset was curated for training, enabling the model to achieve a high accuracy of 91.2%. On more challenging subsets exhibiting varied lighting, occlusion, and head pose variations, the model maintained robust performance with 84.2% accuracy. Evaluation across multiple public benchmark datasets further demonstrated the model’s adaptability, achieving accuracies of 92.5% on DAiSEE, 89.6% on RAF-DB, and 87.4% on FER-2013.This framework offers real-time insights into student engagement, providing a foundation for adaptive and personalized teaching strategies. Future research aims to integrate additional behavioural and physiological cues, such as body posture and voice features, to enable a more comprehensive and multi-modal assessment of student attentiveness. The proposed approach holds promise for enhancing educational interventions and fostering active learning environments.
Enhancing SER Transferability With a Gated Transformer Encoder and Hybrid Loss: A Domain Adaptation Framework Syed Shareefunnisa, Venkata Krishna Kishore Kolli IEEE Access, 2026 Most Speech Emotion Recognition (SER) systems do not generalize well across datasets and languages due to domain shift and restricted labeled data. To address these challenges, this work introduces the Domain Adaptation Training framework to enhance the transferability of SER models across heterogeneous speech corpora. The framework leverages XLS-R pre-trained acoustic embeddings and introduces three encoder variants: Gated Transformer Encoder(GTE), Sequential Context Encoder(SCE), and Conformer Adapter Encoder(CAE), to learn domain-invariant and emotion-discriminative features. First, a hybrid multi-objective loss is formulated based on combining Cross-Entropy, Mix-up, Contrastive, Domain-Adversarial, Pseudo-Label, and Entropy losses. This unified loss optimises inter-domain alignment, intra-class compactness, and emotion separability, enabling robust performance even under severe domain mismatches or with limited supervision. Extensive experiments have been carried out on RAVDESS → EMO-DB, IEMOCAP → EMO-DB, EMO-DB → Hindi, and RAVDESS → Hindi under supervised, semi-supervised, and unsupervised settings. In all these cases, the proposed DAT framework has performed better than the baseline models, as measured by accuracy and F1-score. Overall, the results indicate that multi objective domain adaptation significantly enhances both cross-corpus and cross-lingual SER, providing a more robust and transferable solution for real-world applications.
Message from Convener Proceedings 2025 2nd International Conference on Networks and Soft Computing Icnsoc 2025, 2025 It is a great honor to welcome you all to the 2nd International Conference on Networks and Soft Computing. I am truly privileged to address this distinguished gathering of scholars, innovators, and thought leaders committed to advancing the frontiers of technology.
Dynamic Aspect Filtering and Relevance Ranking for Enhanced Aspect-Based Sentiment Analysis V Vamsi Krishna T, K.V. Krishna Kishore 2025 17th IEEE International Conference on Computational Intelligence and Communication Networks Cicn 2025, 2025 Aspect-based sentiment analysis aims to identify the sentiment directed toward a specific aspect within a sentence. Transformer-based approaches provide strong contextual representation but often struggle to eliminate irrelevant tokens, emphasize sentiment-critical aspects, and capture inter-aspect dependencies effectively. To address these limitations, this paper introduces the Aspect Relevance Sentiment Analysis (ARSA) framework, which incorporates five innovative components. These include ACE-RoBERTa for dynamic context encoding based on aspect relevance, Dynamic Aspect Filtering to remove noise and unnecessary words, Aspect Relevance Ranking to highlight key influential aspects, and Multi-Aspect Attention Graphs to capture relationships among aspects. Experiments conducted using the SemEval 2014 benchmark datasets for Laptop and Restaurant domains demonstrate that the proposed model, which focuses on aspect relevance and minimizes noisy information, achieves a substantial improvement in overall precision.
Improved Adaptive Instance Normalization for StarGANv2-VC Dharmalingam Anandhakumar, K. V. Krishna Kishore Proceedings of 2025 2nd International Conference on Cognitive Robotics and Intelligent Systems Icc Robins 2025, 2025 Voice Conversion (VC) systems modify vocal style while preserving linguistic information. Their relevance has grown as communication technologies have been more widely used. Deep Learning (DL) models based on Generative Adversarial Networks (GANs) have recently made great strides in VC. Among the numerous GAN models, the StarGANv2-VC includes adversarial source classifier loss and perceptual loss for VC. It uses single set of generators and discriminators to execute VCs across multiple speakers. It incorporates feature statistics with Adaptive Instance Normalization (AdaIN), which effectively modifies the content input's mean and variance to align with the style input. On the other hand, AdaIN applies normalization to the mean and variance of all feature maps separately, which could potentially remove information regarding the relative sizes of features. In view of the above, this work proposes an Improved StarGANv2-VC (IStarGANv2-VC) model, which modifies the AdaIN to perform normalization and modulation to remove artifacts and enhance speech quality. These two operations are only performed on the standard variance alone, whereas the mean is not required. This MAdaIN improves data efficiency in models by normalizing and modifying convolutional weights rather than feature maps, hence reducing information loss. MAdaIN uses speech embedding collected from target speaker data to generate affine variables directly controlling convolutional weights. Thus, this technique helps maintain essential elements while improving VC performance, specifically converted speech quality and similarity. Finally, test results using various benchmark corpora prove that the IStarGANv2-VC achieves higher efficiency and quality of converted speech, especially based on Root Mean Square Error (RMSE), Mel Cepstral Distortion (MCD), Mean Opinion Score (MOS), Word Error Rate (WER), Character Error Rate (CER), and voice similarity score.
A Cascaded Ensemble Framework Using BERT and Graph Features for Emotion Detection From English Poetry Praveen K. Kazipeta, Venkatrama Phani Kumar Sistla, Venkata Krishna Kishore Kolli IEEE Access, 2025 Researchers have developed complex deep-learning models to extract emotions from poetry, opting for these over lightweight models. However, this approach requires a high volume of resources, which can be a significant limitation. Moreover, they often suffer from overfitting, making them less effective in real-time scenarios. This work introduces a novel cascaded ensemble framework that combines the strengths of BERT and Graph features (CP Net). The framework is designed in a tiered approach, classifying the majority of emotions in poetry, thereby reducing the need to invoke more complex models later on. This strategic arrangement enables efficient resource allocation and minimizes the usage of complex models. The basic model may not classify all so that a later model will classify residual unclassified emotions in the poetry. While the basic models in the first phase classify the majority of emotions in poetry, the remaining unclassified emotions are then passed on to the subsequent stages of the model, where more complex models can further process and classify them. This work performs feature fusion only in case of failed input samples. The performance of the proposed model is evaluated and compared against four baseline models using word embedding models, including Glove and Fast Text. The proposed CP Net model demonstrated exceptional performance, surpassing all other models by achieving an impressive 95% accuracy on the CAPEMO dataset and an outstanding 98% accuracy on the BAPEMO dataset. CP Net achieved state-of-the-art results with a minimum computational time of 0.274 to 0.332 milliseconds, outperforming other models.
Biogas Production Using Flexible Biodigester to Foster Sustainable Livelihood Improvement in Rural Households † Charles David, Venkata Krishna Kishore Kolli, Karpagaraj Anbalagan Engineering Proceedings, 2025 With the global emphasis on sustainable growth and development, the depletion of natural energy reserves due to reliance on fossil fuels and non-renewable sources remains a critical concern. Despite strides in transitioning to electrical mobility, rural and agricultural communities depend heavily on liquefied petroleum gas and firewood for cooking, lacking viable, sustainable alternatives. This study focuses on community-led efforts to advance biogas adoption, providing an eco-friendly and reliable energy alternative for rural and farming households. By designing and developing balloon-type anaerobic biodigesters, this initiative provides a robust, cost-effective, and scalable method to convert farm waste into biogas for household cooking. This approach reduces reliance on traditional fuels, mitigating deforestation and improving air quality, and generates organic biofertilizer as a byproduct, enhancing agricultural productivity through organic farming. The study focuses on optimizing critical parameters, including the input feed rate, gas production patterns, holding time, biodigester health, gas quality, and liquid manure yield. Statistical tools, such as descriptive analysis, regression analysis, and ANOVA, were employed to validate and predict biogas output data based on experimental and industrial-scale data. Artificial neural networks (ANNs) were also utilized to model and predict outputs, inspired by the information processing mechanisms of biological neural systems. A comprehensive database was developed from experimental and literary data to enhance model accuracy. The results demonstrate significant improvements in cooking practices, health outcomes, economic stability, and solid waste management among beneficiaries. The integration of statistical analysis and ANN modeling validated the biodigester system’s effectiveness and scalability. This research highlights the potential to harness renewable energy to address socio-economic challenges in rural areas, paving the way for a sustainable, equitable future by fostering environmentally conscious practices, clean energy access, and enhanced agricultural productivity.
Context-Aware Automated Essay Scoring with MLM-Pretrained T5 Transformer Chavva Ravi Kishore Reddy, Venkata Krishna Kishore K, Arjun Kireeti Tulasi, Manideep Maturi, Abhiram Nagam Proceedings of the 6th International Conference on Inventive Research in Computing Applications Icirca 2025, 2025
Performance Evaluation of Various Deep Learning Models for Sign Language Recognition Vanipenta Sai Ganesh Reddy, Bollimuntha AnkammaRao, Chilakapati Manvitha, Kurapati Priyanka, Venkatrama Phani Kumar Sistla, Venkata Krishna Kishore Kolli Esic 2025 5th International Conference on Emerging Systems and Intelligent Computing Proceedings, 2025
A Novel Deep Learning Model for Machine Fault Diagnosis K Geethika, V Sowmya, K Ravi Kiran, K Neelaveni, Venkatrama Phani Kumar, Venkata Krishna Kishore Kolli 2025 International Conference on Pervasive Computational Technologies Icpct 2025, 2025
Bi-GRU and Glove Based Aspect-Level Movie Recommendation Achanta Haritha, Kalagara Joshanth, Venkatrama Phani Kumar Sistla, Vangipurapu Veera Brahma Chaitanya, Chilukuri Vijay Rami Reddy, Venkata Krishna Kishore Kolli IEEE International Conference on Computational Communication and Information Technology Icccit 2025, 2025
An Experimental Study on Prediction of Lung Cancer from CT Scan Images Abhishek Mandala, Venkata Seetha Ramanjaneyulu Kurapati, Siva Rama Krishna Musunuri, J V S Choudhari Mutthina, Venkatrama Phani Kumar Sistla, Venkata Krishna Kishore Kolli International Conference on Intelligent Systems and Computational Networks Iciscn 2025, 2025
Experimental Study of Various Deep Learning Models in Handwritten Character Recognition Prudhvi Chanakya Nalluri, Siva Rama Sandilya Ponnekanti, Navya Annapureddy, Mupparaju Vijaya Lakshmi, Venkatrama Phani Kumar Sistla, Venkata Krishna Kishore Kolli 2025 5th International Conference on Advances in Electrical Computing Communication and Sustainable Technologies Icaect 2025, 2025
Prediction of Food Wastage using XG Boost K. Sruthi Chowdary, L. Krishna Praneetha, S. Holika, D. Bindhu Priya, S Venkatrama Phani Kumar, K Venkata Krishna Kishore Proceedings 2024 8th International Conference on Inventive Systems and Control Icisc 2024, 2024
A Light Gradient Boosted Model for Network Intrusion Detection Vyshnavi Manduru, Tharun Gopi Reddy Kasireddy, Karthik Manchina, Vijay Shanmuk Davuluri, Venkatrama Phani Kumar S, Venkata Krishna Kishore K International Conference on Smart Systems for Electrical Electronics Communication and Computer Engineering Icsseec 2024 Proceedings, 2024
An Efficient Seq2Seq model to predict Question and Answer response system Pujitha Nerella, DivyaSri Pittu, Sandhya Undrakonda, Sasidhar Chennamsetty, Venkatrama Phani Kumar S, Venkata Krishna Kishore K 2nd IEEE International Conference on Advances in Information Technology Icait 2024 Proceedings, 2024
A Novel Machine Learning Model for Sarcasm Detection on Facebook Comments Soumya Puvvada, Kusuma, Mastan Valli Shaik, Karthik Galla, S Venkatrama Phani Kumar, K Venkata Krishna Kishore Proceedings of the 3rd International Conference on Applied Artificial Intelligence and Computing Icaaic 2024, 2024
An Experimental Study on Prediction of Revenue and Customer Segmentation Bhavya Sai Mikkilineni, Uuhasri Madala, Renu Sree Bonthagorla, Yashmitha Priya Parikala, S Venkatrama Phani Kumar, Venkata Krishna KishoreK Proceedings 2024 8th International Conference on Inventive Systems and Control Icisc 2024, 2024
Sentiment Analysis Using CEmo-LSTM to Reveal the Emotions from Tweets Annam Jayasri, Shaik Rafiya Nasreen, Atchuta Kavya, Sayyad Karimun, Venkatrama Phani Kumar S, Venkata Krishna Kishore K 2nd IEEE International Conference on Data Science and Network Security Icdsns 2024, 2024
An Experimental Study on Prediction of Video Ads Engagement Tanuja Ch, Sai Sevitha V, Veera Manikanta V, Prabhath Chowdary G, Venkatarama Phanikumar S, Venkata Krishna Kishore K 2nd IEEE International Conference on Advances in Information Technology Icait 2024 Proceedings, 2024
Analyzing factors influencing the research progression of faculty in STEM based universities International Journal of Advanced Science and Technology, 2020
M5P model tree in predicting student performance : A case study S. Chaitanya Kumar, E. Deepak Chowdary, S. Venkatramaphanikumar, K.V. Krishna Kishore 2016 IEEE International Conference on Recent Trends in Electronics Information and Communication Technology Rteict 2016 Proceedings, 2017
POETIC-NET: an augmented contextual feature representation via graph centrality relation for emotion recognition of English poetry PK Kazipeta, VPK Sistla, VKK Kolli Evolving Systems 17 (2), 64 , 2026 2026
CSBAM-MobileNet: a lightweight attention-enhanced deep learning model for student attentiveness classification S Radharani, V Sistla, VKK Kolli Engineering Science and Technology, an International Journal 77, 102326 , 2026 2026
Enhancing SER Transferability with a Gated Transformer Encoder and Hybrid Loss: A Domain Adaptation Framework S Shareefunnisa, VKK Kolli IEEE Access , 2026 2026
HEViT: A Hybrid Efficient Vision Transformer for Student Attentiveness Detection in Classroom Environments S Radharani, V Sistla, VKK Kolli 2026 IEEE Conference on Computer Applications (ICCA), 1-8 , 2026 2026
Enhancing plant leaf disease classification through self-attention super-resolution GAN and dual attention model V Sasikala, V Sistla, DC Edara, VKK Kolli The Visual Computer 42 (1), 71 , 2026 2026 Citations: 2
FedViT: A Privacy-Aware Federated Vision Transformer for Diabetic Retinopathy Detection AMSS Chandra, DK Salluri, V Sistla, VKK Kolli Iranian Journal of Science and Technology, Transactions of Electrical … , 2025 2025
SE-TStarGANv2-VC: A Non-Parallel Dual Domain Transformer Based Framework for Style and Emotion Pair Voice Conversion A Dharmalingam, VKK Kolli 2025 IEEE 1st International Conference on Recent Trends in Computing and … , 2025 2025
A Synergistic Stacked Ensemble Deep Learning Model for Predicting Diabetic Retinopathy Severity DK Salluri, MSSC Atthuluri, V Sistla, VKK Kolli IEEE Access 13, 202454-202466 , 2025 2025 Citations: 2
TStarGANv2-VC: Non-parallel Multi-domain Transformer Based StarGANv2 Voice Conversion A Dharmalingam, VKK Kolli Circuits, Systems, and Signal Processing, 1-31 , 2025 2025 Citations: 1
Context-Aware Automated Essay Scoring with MLM-Pretrained T5 Transformer CRK Reddy, AK Tulasi, M Maturi, A Nagam 2025 6th International Conference on Inventive Research in Computing … , 2025 2025 Citations: 1
Improved Adaptive Instance Normalization for StarGANv2-VC D Anandhakumar, KVK Kishore 2025 Second International Conference on Cognitive Robotics and Intelligent … , 2025 2025
Biogas Production Using Flexible Biodigester to Foster Sustainable Livelihood Improvement in Rural Households C David, VKK Kolli, K Anbalagan Engineering Proceedings 95 (1), 3 , 2025 2025
Models to Predict Percentage of Being COVID-19 Cases on Chest X-Ray and COVID Radiography Images S Kamepalli, VKK Kolli Soft Computing and Signal Processing: Proceedings of 7th ICSCSP 2024, Volume … , 2025 2025
A Cascaded Ensemble Framework Using BERT and Graph Features for Emotion Detection From English Poetry PK Kazipeta, VP kumar Sistla, VKK Kolli IEEE Access , 2025 2025 Citations: 2
Image Enhancement and De-blurring using ResNet-101 K Gunduboina, MN Haq, C Sasidhar, K Prudhvi, VPK Sistla, VKK Kolli 2025 International Conference on Emerging Systems and Intelligent Computing … , 2025 2025
Performance Evaluation of Various Deep Learning Models for Sign Language Recognition VSG Reddy, B AnkammaRao, C Manvitha, K Priyanka, VPK Sistla, ... 2025 International Conference on Emerging Systems and Intelligent Computing … , 2025 2025 Citations: 2
An Improved Inception V3 Deep learning model for Cardiovascular Disease Prediction LL Sowjanya, K Kowshya, MS Roshini, B Krishna, VKK Kolli 2025 International Conference on Emerging Systems and Intelligent Computing … , 2025 2025 Citations: 1
A Novel Transfer Learning-based Efficient-Net for Visual Image Tracking SS Puligadda, G Karthik, U Polina, S Subbarao, VPK Sistla, VKK Kolli 2025 International Conference on Pervasive Computational Technologies (ICPCT … , 2025 2025 Citations: 1
Automated Kidney Anomaly Detection Using Deep Learning and Explainable AI Techniques BSS Reddy, NL Prathyusha, DV Karthik, K Vishnukanth, VPK Sistla, ... 2025 International Conference on Pervasive Computational Technologies (ICPCT … , 2025 2025 Citations: 1
A Novel Deep Learning Model for Machine Fault Diagnosis K Geethika, V Sowmya, KR Kiran, K Neelaveni, VP Kumar, VKK Kolli 2025 International Conference on Pervasive Computational Technologies (ICPCT … , 2025 2025
MOST CITED SCHOLAR PUBLICATIONS
Transfer learning-based deep ensemble neural network for plant leaf disease detection S Vallabhajosyula, V Sistla, VKK Kolli Journal of Plant Diseases and Protection 129 (3), 545-558 , 2022 2022 Citations: 300
Deep CNN: A Machine Learning Approach for Driver Drowsiness Detection Based on Eye State. VRR Chirra, SR Uyyala, VKK Kolli Rev. d'Intelligence Artif. 33 (6), 461-466 , 2019 2019 Citations: 196
Emotion recognition in speech using MFCC and wavelet features KVK Kishore, PK Satish 2013 3rd IEEE international advance computing conference (IACC), 842-847 , 2013 2013 Citations: 178
Sentiment analysis and text categorization of cancer medical records with LSTM DC Edara, LP Vanukuri, V Sistla, VKK Kolli Journal of Ambient Intelligence and Humanized Computing 14 (5), 5309-5325 , 2023 2023 Citations: 133
Facial Emotion Recognition Using NLPCA and SVM CVR Reddy, US Reddy, K Venkata Krishna Kishore Traitement du Signal 36 (1), 13-21 , 2019 2019 Citations: 69
A novel hierarchical framework for plant leaf disease detection using residual vision transformer S Vallabhajosyula, V Sistla, VKK Kolli Heliyon 10 (9) , 2024 2024 Citations: 66
Virtual facial expression recognition using deep CNN with ensemble learning VRR Chirra, SR Uyyala, VKK Kolli Journal of Ambient Intelligence and Humanized Computing 12 (12), 10581-10599 , 2021 2021 Citations: 59
Multimodal attention-gated cascaded U-Net model for automatic brain tumor detection and segmentation SKR Chinnam, V Sistla, VKK Kolli Biomedical Signal Processing and Control 78, 103907 , 2022 2022 Citations: 51
An automated online proctoring system using attentive-net to assess student mischievous behavior P Tejaswi, venkatarama phanikumar Sistla, K Venkata Krishna Kishore Multimedia Tools and Applications, 1-30 , 2023 2023 Citations: 49
Predictive Model for Network Intrusion Detection System Using Deep Learning V Sstla, VKK Kolli, LK Voggu, R Bhavanam, S Vallabhasoyula 2020 Citations: 39
Performance evaluation of DNN with other machine learning techniques in a cluster using Apache Spark and MLlib ANM JayaLakshmi, KVK Kishore Journal of king saud university-computer and information sciences 34 (1 … , 2022 2022 Citations: 38
Proctor net: An AI framework for suspicious activity detection in online proctored examinations P Tejaswi, S Venkatramaphanikumar, K Venkata Krishna Kishore Measurement 206, 112266 , 2023 2023 Citations: 37
Multi-Feature Fusion based Facial Expression Classification using DLBP and DCT C VenkataRamiReddy, KVK Kishore, D Bhattacharyya, T Kim International Journal of Software Engineering and Its Applications 8 (9), 55-68 , 2014 2014 Citations: 34
M5P model tree in predicting student performance: A case study SC Kumar, ED Chowdary, S Venkatramaphanikumar, KVK Kishore 2016 IEEE International Conference on Recent Trends in Electronics … , 2016 2016 Citations: 33
Prediction of cervical cancer using voting and DNN classifiers K Rayavarapu, KKV Krishna 2018 International Conference on Current Trends towards Converging … , 2018 2018 Citations: 31
Object Detection Using Stacked YOLOv3 SS Padmanabula, RC Puvvada, V Sistla, VKK Kolli Ingénierie des Systèmes d’Information 25 (5), 691-697 , 2020 2020 Citations: 30
A novel face recognition system based on combining eigenfaces with fisher faces using wavelets B Jyostna Devi, N Veeranjaneyulu, KVK Kishore Procedia Computer Science 2, 44-51 , 2010 2010 Citations: 26
Facial Expression classification using Kernel based PCA with fused DCT and GWT features CV Ramireddy, KV Krishna Kishore Computational Intelligence and Computing Research (ICCIC), 2013 IEEE … , 2013 2013 Citations: 24
SVM-PUK Kernel Based MRI-brain Tumor Identification Using Texture and Gabor Wavelets. S Chinnam, VPK Sistla, VKK Kolli Traitement du Signal 36 (2), 185-191 , 2019 2019 Citations: 23
Prognosis of diseases using machine learning algorithms: a survey NMJ Kumari, KKV Krishna 2018 International Conference on Current Trends towards Converging … , 2018 2018 Citations: 23