用超图建模语义关系,提升通信中隐含信息的理解准确率。
Implicit Semantic-Aware Communication Based on Hypergraph Reasoning

- 通过超图捕捉多实体间的高阶关联,超越传统图的成对关系建模。
- 在信道受损时仍保持语义推理能力,隐式理解准确率提升36.6%。
- 适合需要鲁棒语义通信的场景,如智能交互、无线感知系统。
语义感知通信作为下一代通信系统的变革范式,将目标从传输比特符号转向可靠恢复与理解信息的语义含义。已有研究证明,将源消息的语义内容表示为基于图的结构可显著提升通信效率和接收端语义推断的准确性。然而,现有方法通常采用仅捕捉成对关系的图结构,忽视了现实场景中普遍存在的高阶隐含关联,如群体互动、多主体关联和复杂上下文关系。这一局限降低了语义表达能力,使语义推断易受模糊性和性能下降影响,尤其在噪声或信道损坏条件下。为此,本文提出一种新型基于超图的隐式语义推理框架HISR,利用超图表示语义知识实体间的复杂多体关系。在HISR中,实体及其关联的高阶关系被映射到针对不同关系上下文定制的语义子空间中。该设计不仅解耦多样化的语义交互,缓解传统图嵌入方法中常见的过平滑问题,还支持在部分信息丢失时实现鲁棒的语义推断。数值结果表明,所提HISR在隐式语义理解准确率上相比最先进基准最高提升36.6%。
原文摘要 · Abstract (English)
Semantic-aware communication has emerged as a transformative paradigm for next-generation communication systems, shifting the fundamental goal from transmitting bit-level symbols to reliably recovering and understanding the semantic meaning of information. Previous studies have demonstrated that representing the semantic content of source messages as graph-based structures can significantly improve communication efficiency and the accuracy of semantic inference at the receiver. However, existing solutions typically employ graphs that capture only pairwise relationships, thereby neglecting higher-order implicit correlations commonly observed in real-world scenarios, such as group interactions, multi-entity associations, and complex relational contexts. This limitation reduces semantic expressiveness and makes semantic inference susceptible to ambiguity and performance degradation, particularly under noisy or corrupted channel conditions. To address these issues, this paper proposes a novel hypergraph-based implicit semantic reasoning framework, HISR, which leverages hypergraphs to represent complex multi-entity relationships among semantic knowledge entities. In HISR, entities and their associated higher-order relations are mapped into dedicated semantic subspaces tailored to distinct relational contexts. This design not only disentangles diverse semantic interactions to mitigate the over-smoothing effects commonly found in traditional graph embedding methods but also enables robust semantic inference even when partial information loss occurs during transmission. Numerical results show that the proposed HISR achieves up to a 36.6% improvement in implicit semantic interpretation accuracy over the state-of-the-art benchmarks.
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