文档集内容空间的导航

Navigation of the content space of a document set

Abstract

按内容寻址用于在内容空间的文档之间正向、反向和以循环方式导航。为了使能反向导航,为新版本创建描述符文件,它不仅包含新版本的消息摘要,而且包含较旧版本的消息摘要。为描述符文件创建消息摘要。用户反向导航以描述符文档的消息摘要开始。为了使能正向导航,映射表将较旧文档的消息摘要映射成新版本的消息摘要。高级描述符文件包含原始文档的消息摘要和映射表的消息摘要。高级描述符文件的消息摘要返回给用户。用户正向导航以高级描述符文件消息摘要开始。为了使能循环导航,映射表将第二文档的消息摘要映射成包含第一文档消息摘要的第二文档版本的消息摘要。组合这些方法以允许遍历复杂内容空间的导航。
Content-based addressing is used to navigate forward, backward and in a circular fashion through documents in a content space. To enable backward navigation, a descriptor file is created for a new version that contains not only a message digest for the new version, but also a message digest of the older document. A message digest is created for the descriptor file. A user navigates backward starting with the message digest of the descriptor file. To enable forward navigation, a mapping table maps a message digest of an older document into the message digest of the new version. A high-level descriptor file contains the message digest of the original document and the message digest of the mapping table. The message digest of the high-level descriptor file is returned to the user. A user navigates forward starting with the high-level descriptor file message digest. To enable circular navigation, a mapping table maps a message digest of a second document into a message digest of a versionof the second document containing a message digest of a first document. The techniques are combined to allow navigation through a complex content space.

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Patent Citations (2)

    Publication numberPublication dateAssigneeTitle
    CN-1073277-AJune 16, 1993国际商业机器公司Method and system for creating and maintaining multiple document version in a data processing system
    EP-1087309-A2March 28, 2001Canon Kabushiki KaishaVerfahren und System zum Adressieren von audio-visuellen Inhaltsstücken

NO-Patent Citations (1)

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