This includes the actual content that is searchable and several pieces of metadata, including a unique resource identifier (URI) in order to uniquely identify the row for later retrieval.
这包括可搜索的实际内容和几部分元数据(包括惟一资源标识符(uri))，以便惟一地识别稍后检索的行。
2
In this paper an identifier (id) watermarking algorithm is proposed, which has the characteristics of error-correct, high redundance and adaptive watermark retrieval.