How Efficient Are Neural Networks and AI Applications? A Review of Advanced Applications and Emerging Trends
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30-40Abstract
The exponential growth of neural networks and artificial intelligence (AI) has revolutionized diverse fields, including healthcare, finance, natural language processing, and autonomous systems. These technologies have redefined the boundaries of what is possible, enabling solutions to complex problems across multiple domains. This review critically examines the efficiency of neural networks and AI applications in advanced settings, with a focus on computational performance, scalability, energy consumption, and ethical implications. By evaluating state-of-the-art architectures and application-specific implementations, the study identifies pressing challenges, including environmental sustainability and data privacy, alongside opportunities for improvement. Furthermore, it highlights emerging trends such as Green AI, federated learning, and neurosymbolic AI that are shaping the future of the field. This comprehensive analysis aims to provide actionable insights for researchers and practitioners seeking to optimize AI systems for greater effectiveness and impact. This review uses a structured literature review approach to examine approximately 50 sources, including journal articles, conference papers, preprints, and selected technical reports published up to 2026. The scope is limited to efficiency-oriented neural network and AI applications in healthcare, autonomous systems, natural language processing, finance, and environmental/climate science. The main contribution is a cross-domain comparison of algorithms, efficiency metrics, deployment settings, and open research gaps. The review finds that no single technique is universally efficient: CNNs and vision transformers remain strong for perception tasks, transformer and retrieval-augmented models dominate language applications, graph neural networks and reinforcement learning support relational and decision-making tasks, and compression, federated learning, edge deployment, and hardware acceleration are increasingly required to control latency, energy consumption, and scalability costs.
References
- Lai, V., et al. Towards a science of human-AI decision making: An overview of design space in empirical human-subject studies. in Proceedings of the 2023 ACM Conference on Fairness, Accountability, and Transparency. 2023.
- Tan, M. and Q. Le. Efficientnet: Rethinking model scaling for convolutional neural networks. in International conference on machine learning. 2019. PMLR.
- Bi, K., et al., Accurate medium-range global weather forecasting with 3D neural networks. Nature, 2023. 619(7970): p. 533-538.
- Lewis, M., Bart: Denoising sequence-to-sequence pre-training for natural language generation, translation, and comprehension. arXiv preprint arXiv:1910.13461, 2019.
- Schwartz, R., et al., Green ai. Communications of the ACM, 2020. 63(12): p. 54-63.
- Zhang, H., et al. Theoretically principled trade-off between robustness and accuracy. in International conference on machine learning. 2019. PMLR.
- Defferrard, M., X. Bresson, and P. Vandergheynst, Convolutional neural networks on graphs with fast localized spectral filtering. Advances in neural information processing systems, 2016. 29.
- Pascanu, R., On the difficulty of training recurrent neural networks. arXiv preprint arXiv:1211.5063, 2013.
- Sun, D., et al. Pwc-net: Cnns for optical flow using pyramid, warping, and cost volume. in Proceedings of the IEEE conference on computer vision and pattern recognition. 2018.
- Mnih, V., Asynchronous Methods for Deep Reinforcement Learning. arXiv preprint arXiv:1602.01783, 2016.
- Jang, E., et al. Bc-z: Zero-shot task generalization with robotic imitation learning. in Conference on Robot Learning. 2022. PMLR.
- Qin, H., et al., Review of autonomous path planning algorithms for mobile robots. Drones, 2023. 7(3): p. 211.
- Tampouratzis, N. and I. Papaefstathiou, A novel, simulator for heterogeneous cloud systems that incorporate custom hardware accelerators. IEEE Transactions on Multi-Scale Computing Systems, 2018. 4(4): p. 565-576.
- Kazemnejad, A., et al., The impact of positional encoding on length generalization in transformers. Advances in Neural Information Processing Systems, 2024. 36.
- Chiu, Y.-C., et al., A CMOS-integrated spintronic compute-in-memory macro for secure AI edge devices. Nature Electronics, 2023. 6(7): p. 534-543.
- Gerum, C., et al., Hardware accelerator and neural network co-optimization for ultra-low-power audio processing devices. arXiv preprint arXiv:2209.03807, 2022.
- Dogaru, R., A.-D. Mirică, and I. Dogaru. XNL-CNN: An improved version of the NL-CNN model, for running with TPU accelerators and large image datasets. in 2023 8th International Symposium on Electrical and Electronics Engineering (ISEEE). 2023. IEEE.
- Ainslie, J., et al., Gqa: Training generalized multi-query transformer models from multi-head checkpoints. arXiv preprint arXiv:2305.13245, 2023.
- Haarnoja, T., et al. Soft actor-critic: Off-policy maximum entropy deep reinforcement learning with a stochastic actor. in International conference on machine learning. 2018. PMLR.
- Chen, Y., R. Calabrese, and B. Martin-Barragan, Interpretable machine learning for imbalanced credit scoring datasets. European Journal of Operational Research, 2024. 312(1): p. 357-372.
- Mishra, S., Exploring the impact of AI-based cyber security financial sector management. Applied Sciences, 2023. 13(10): p. 5875.
- Xu, K., et al., How powerful are graph neural networks? arXiv preprint arXiv:1810.00826, 2018.
- Sharma, A., et al., Artificial intelligence and internet of things oriented sustainable precision farming: Towards modern agriculture. Open Life Sciences, 2023. 18(1): p. 20220713.
- Howard, A., et al., MobileNets: Efficient Convolutional Neural Networks for Mobile Vision Applications. sl, sn. arXiv preprint arXiv:1704.04861, 2017.
- Mishra, R., H.P. Gupta, and T. Dutta. Noise-resilient federated learning: Suppressing noisy labels in the local datasets of participants. in IEEE INFOCOM 2022-IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS). 2022. IEEE.
- Han, S., H. Mao, and W.J. Dally, Deep compression: Compressing deep neural networks with pruning, trained quantization and huffman coding. arXiv preprint arXiv:1510.00149, 2015.
- Bakhshali, A., et al., Neural network architectures for optical channel nonlinear compensation in digital subcarrier multiplexing systems. Optics Express, 2023. 31(16): p. 26418-26434.
- Landes, S.J., S.A. McBain, and G.M. Curran, Reprint of: an introduction to effectiveness-implementation hybrid designs. Psychiatry research, 2020. 283: p. 112630.
- Lin, B. and R. Ma, How does digital finance influence green technology innovation in China? Evidence from the financing constraints perspective. Journal of environmental management, 2022. 320: p. 115833.
- Zhang, M., et al. An end-to-end deep learning architecture for graph classification. in Proceedings of the AAAI conference on artificial intelligence. 2018.
- Wang, C., et al., Neural codec language models are zero-shot text to speech synthesizers. arXiv preprint arXiv:2301.02111, 2023.
- Li, P., B. Wang, and L. Zhang. Virtual fully-connected layer: Training a large-scale face recognition dataset with limited computational resources. in Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition. 2021.
- Gupta, I., et al., Secure data storage and sharing techniques for data protection in cloud environments: A systematic review, analysis, and future directions. IEEE Access, 2022. 10: p. 71247-71277.
- Demaine, E.D., et al. Energy-efficient algorithms. in Proceedings of the 2016 ACM Conference on Innovations in Theoretical Computer Science. 2016.
- Chernysheva, M., S. Yushakova, and Y.F. Maydanik, Copper–water loop heat pipes for energy-efficient cooling systems of supercomputers. Energy, 2014. 69: p. 534-542.
- Li, Z., Z. Huang, and Y. Su, New media environment, environmental regulation and corporate green technology innovation: Evidence from China. Energy Economics, 2023. 119: p. 106545.
- Mao, Y., et al., A survey on mobile edge computing: The communication perspective. IEEE communications surveys & tutorials, 2017. 19(4): p. 2322-2358.
- Jiang, M., et al., Federated dynamic graph neural networks with secure aggregation for video-based distributed surveillance. ACM Transactions on Intelligent Systems and Technology (TIST), 2022. 13(4): p. 1-23.
- Gaete, M.I., et al., Remote and asynchronous training network: from a SAGES grant to an eight-country remote laparoscopic simulation training program. Surgical Endoscopy, 2023. 37(2): p. 1458-1465.
- Kosaian, J. and K. Rashmi. Arithmetic-intensity-guided fault tolerance for neural network inference on GPUs. in Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis. 2021.
- Zou, A., et al., Representation engineering: A top-down approach to ai transparency. arXiv preprint arXiv:2310.01405, 2023.
- Hammouri, S., Systemic Economic Harm in Occupied Palestine and the Social Connections Model. The Palestine Yearbook of International Law, 2021. 22(1): p. 112-140.
- Graham, R., The ethical dimensions of Google autocomplete. Big Data & Society, 2023. 10(1): p. 20539517231156518.
- Zhang, L., M.A. Anjum, and Y. Wang, The impact of trust-building mechanisms on purchase intention towards metaverse shopping: the moderating role of age. International Journal of Human–Computer Interaction, 2024. 40(12): p. 3185-3203.
- Li, T., et al., Federated learning: Challenges, methods, and future directions. IEEE signal processing magazine, 2020. 37(3): p. 50-60.
- Gaur, M. and A. Sheth, Building trustworthy NeuroSymbolic AI Systems: Consistency, reliability, explainability, and safety. AI Magazine, 2024. 45(1): p. 139-155.
- Chandran, R., S.R. Kumar, and N. Gayathri, Genetic algorithm-based tabu search for optimal energy-aware allocation of data center resources. Soft Computing, 2020. 24(21): p. 16705-16718.
- Alola, A.A., O. Özkan, and O. Usman, Role of non-renewable energy efficiency and renewable energy in driving environmental sustainability in India: evidence from the load capacity factor hypothesis. Energies, 2023. 16(6): p. 2847.
- Wang, L. and J. Shao, Digital economy, entrepreneurship and energy efficiency. Energy, 2023. 269: p. 126801.
- Carmon, Y., et al., Unlabeled data improves adversarial robustness. Advances in neural information processing systems, 2019. 32.
- Mienye, E., & Swart, T. Deep Learning in Finance: A Survey of Applications and Challenges. Data, 2024, 5(4), 101.
- Gao, H., et al. A Survey for Foundation Models in Autonomous Driving. arXiv preprint arXiv:2402.01105, 2024.
- Liu, D., et al. A survey of model compression techniques: past, present, and future directions. Frontiers in Robotics and AI, 2025.
- Reza, M. H., et al. A comprehensive review of convolutional neural networks. Neural Computing and Applications, 2026.
- Song, P., et al. Trustworthy requirements for foundation models: A review. Engineering Applications of Artificial Intelligence, 2026.
- Li, X., et al. Open challenges and opportunities in federated foundation models for biomedical AI. BioData Mining, 2025.
- Zhou, Longsheng, and Yu Shen. "Prune-Quantize-Distill: An Ordered Pipeline for Efficient Neural Network Compression." arXiv preprint arXiv:2604.04988 (2026).
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