Natural Language Processing (NLP) has been transformed by Generative AI and large-scale language models (LLMs) such as GPT, LLaMA, and PaLM, which now underpin applications in dialogue systems, question answering, summarization, and translation. Despite their success, critical challenges remain unresolved: model architecture optimization, interpretability, robustness, and computational efficiency. Evolutionary Algorithms (EAs)—with their adaptability, global search capabilities, and problem-agnostic design—are uniquely positioned to complement or surpass gradient-based methods in tackling these issues. The integration of EAs into NLP research represents a timely and necessary response to the limitations of current approaches.
The main objectives of this session are: to explore evolutionary approaches for optimizing architectures and hyperparameters of LLMs and transformer-based models; to address multi-objective trade-offs in NLP (e.g., accuracy vs. efficiency vs. interpretability vs. fairness); to advance evolutionary prompt engineering for generative models, especially in zero-shot and few-shot settings; to leverage EAs in data-centric NLP, including synthetic data generation, augmentation, and adversarial robustness; to promote interpretable and symbolic modeling in NLP through genetic programming and grammatical evolution; and to foster cross-disciplinary exchange between the evolutionary computation and NLP communities.
This session will be among the first to systematically bridge evolutionary computation and generative NLP, addressing pressing challenges such as emergent behavior control, robust evaluation, and uncertainty quantification in LLMs. Unlike prior optimization-focused work, this session emphasizes multi-objective design, interpretability, and data-centric approaches—areas that remain underexplored in mainstream NLP research.
The session aims to inspire novel frameworks and algorithms that expand the applicability of EAs in large-scale NLP systems; provide practical solutions to real-world NLP problems in low-resource, high-stakes, and multilingual settings; enhance responsible AI development by improving interpretability, fairness, and robustness of generative models; and create a sustainable research community at the EC–NLP interface, potentially shaping future collaborations, projects, and applications in academia and industry.
IEEE CEC 2026 has long been a premier venue for showcasing advances in evolutionary computation. With the rise of generative AI, there is an urgent need to investigate how EAs can contribute to NLP, a domain that now defines much of the global AI landscape. This session directly aligns with CEC’s themes of optimization, hybridization, and real-world impact, while opening a new research frontier at the intersection of EC and NLP.
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Dr. Diego Oliva received his B.S. degree in Electronics and Computer Engineering from the Industrial Technical Education Center (CETI) of Guadalajara, Mexico, in 2007, his M.Sc. degree in Electronic Engineering and Computer Sciences from the University of Guadalajara, Mexico, in 2010, and completed his Ph.D. in Informatics at the Complutense University of Madrid in 2015. Currently, he is an associate professor at the University of Guadalajara in Mexico. His current research interests include computer vision, image processing, artificial intelligence, and metaheuristic optimization algorithms.
Dr. Naveen Saini is currently working as an Assistant Professor in the Department of Information Technology, Indian Institute of Information Technology Allahabad, Uttar Pardesh. Prior to this, he was associated with the Department of Computer Science at Indian Institute of Information Technology Lucknow as an Assistant Professor. He has also worked as a researcher at 4IR Applied Research Center and Assistant Professor at Endicott College of International Studies, Woosong University, South Korea. He did his post doctorate from IRIT (Institut De Recherche En Informatique De Toulouse) and earned his PhD from the Department of Computer Science and Engineering at Indian Institute of Technology Patna (IITP), India. His current research interests include Text Analytics, Social Media Analysis, Multimodal Information Processing, Artificial Intelligence, Machine Learning, Multi-objective Optimization, and Evolutionary Algorithms.
Because of the wide scope of NLP, some important topics that fit in the scope of the special session may not be listed above. Therefore, if you are unsure whether your work would fit, we encourage you to get in touch with any organizer. All papers must comply with the basic requirements of WCCI 2026. The review process will comply with the standard review process. Each paper will receive at least three reviews from experts in the field. As per our knowledge, there is no previous special session held anywhere as most of the NLP community focuses on using deep learning-based methods.