1 Introduction
The rapid development of Internet application has greatly increased the information available on the
Internet, causing it difficult to carry out the first step towards E-commerce - ECommerce information retrieval.
Based on WordNet, Ray Richardson proposed the knowledge-based information retrieval method[2] by calculating the semantic distance between concepts, while the distance could be used to compute the similarity between the inquiring conditions and web pages.
Though the precision and recall rates on information retrieval are not so idealistic, this method has
provided a direction for semantic information retrieval.