SemShareKV: Efficient KVCache Sharing for Semantically Similar Prompts via Token-Level LSH Matching

arXiv — cs.CLThursday, December 18, 2025 at 5:00:00 AM
  • A new framework named SemShareKV has been proposed to enhance the efficiency of key-value (KV) cache sharing in large language models (LLMs) by utilizing token-level locality-sensitive hashing (LSH) matching. This approach addresses the limitations of existing methods that focus on exact token matches, particularly in scenarios involving semantically similar prompts that differ lexically, such as in multi-document summarization and conversational agents.
  • The introduction of SemShareKV is significant as it aims to reduce the memory footprint during inference, which has become a critical bottleneck for LLMs as they scale. By improving KV cache reuse, this framework could lead to faster inference times and better performance in applications that require handling multiple similar prompts, thereby enhancing user experience and operational efficiency.
  • This development aligns with ongoing efforts in the AI community to optimize LLMs, including advancements in low-bit quantization and hierarchical token management. As the demand for more efficient and capable language models grows, strategies like SemShareKV could play a pivotal role in addressing memory and computational challenges, fostering innovation in natural language processing and related fields.
— via World Pulse Now AI Editorial System

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