关键词: 网络资源标识, 关系概念, 激活扩散, 关系概念标识模型（RCAM）

Abstract: In the Web environment, resources have rich contents, various forms, different description standards as well as discrete organizational structures. Problems, such as the lack of semantics and domain knowledge and artificial workload, limit them in the personalized resource recommendation and the obtaining application. This paper, based on the relationship between the concept of activated diffusion and the thought of layered resource semantic identification, establishes the relational concept annotation model (RCAM）. RCAM simulates human memory activation spreading process and considers memory enhancement and forgetting mechanism to achieve the more dynamic and personalized related organizations of Web resources. RCAM regards the concept of a relationship as semantic elements, and the fragment relationship concept set as the semantic scheme. With the flexible identification granul-arity and relatively completed sematic logic, RCAM provides new research ideas to Web education resource identification. Experiment shows that RCAM can provide more background knowledge, adapt to dynamic resource organization with different learning scenarios and learning personality, and it aims at the open Web resources. As a result, RCAM has better universality and extensibility.

Key words: Web resources annotation, relational concept, activation and spreading, relational concept annotation model (RCAM)