Web源与内容聚合:RSS/Atom的扩展、生成、发布、发现与共享  

Web Feeds and Content Syndication:The Extension, Generation, Publication, Discovery and Sharing of RSS/Atom

作　　者：窦平安[1] 靖继鹏[1] 

机构地区：[1]吉林大学管理学院,吉林长春130022

出　　处：《情报科学》2009年第6期857-863,873,共8页Information Science

摘　　要：RSS/Atom源是基于XML的语意网内容,能够被客户端解析程序用做数据源。微格式是嵌入到网页中的语意网微内容。Web源包括RSS/Atom源和微格式源。RSS/Atom的标准化带来了众多软件和网站的广泛应用。扩展的RSS/Atom可用于专业领域。聚合供源与聚合消费器之间,采用"服务器/客户机"模式和标准的HTTP通讯。网站可以根据现有网页或者网站数据库生成RSS/Atom源,也可以考虑将多个外部RSS/Atom源聚合成新的RSS/Atom源。列表RSS/Atom源同时支持对客户端缓存的更新与删除操作。面向浏览器用户通报网站发布的RSS/Atom源,首选自动发现方式。微软提出的SSE协议,用于松散协作的两个网站之间交叉订阅对方的RSS/Atom源,服务于新条目和更新条目的双向、延时同步。RSS/Atom feeds are XML-based contents in semantic Web and can be used as data sources by client-side parser. Microformats are semantic micorcontents embedded in HTML. Web feeds include RSS/Atom feeds and microformat feeds. RSS/Atom standardization leads to widely adoption by various applications and Web sites. Extensions for RSS/Atom are used in specific domains. The S/C mode and HTYP protocol are implemented between syndication providers and syndication consumers. RSS/Atom feeds as a list enable updating and deleting client-side cache. Aotudiscovery is the best choice for Web sites informing their visitors about their RSS/Atom feeds. The Microsoft SSE specification is used for two sites mutually subscribing to the RSS/Atom feeds of their counterparts, enabling the bi-directional, asynchronous synchronization of new and changed items.

关 键 词：Web源 RSS/Atom 内容聚合 协议扩展 信息共享 

分 类 号：G350[文化科学—情报学]