LLM Knowledge Update refers to methods for modifying the factual or procedural knowledge encoded in a large language model after initial training, without requiring full retraining. Approaches include model editing, adapter-based memory systems, and retrieval-augmented mechanisms that selectively unlearn outdated information and incorporate new knowledge. Research challenges include managing conflicts between old and new knowledge, maintaining general model utility, and scaling updates across complex, unstructured knowledge in lifelong learning settings.
NEC Laboratories America heads to ACL 2026 in San Diego, California, July 2–7, to present accepted papers spanning knowledge updating and memory control in large language models, task-aware cultural alignment, uncertainty-aware reasoning, and adaptive chain-of-thought optimization, representing some of the most active frontiers in NLP and AI research today.
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NEC Laboratories America, Inc. (NEC Labs) is the US-based center for NEC Corporation’s global network of corporate research laboratories. Our diverse research groups collaborate with industry, academia and governments to provide disruptive solutions to complex problems. A leader in the integration of IT and network technologies with more than 100 years of expertise, NEC provides a combination of products and solutions that cross-utilize the company’s experience and global resources to meet the complex and ever-changing needs of its customers.