【摘要】 针对多媒体资源在网上的分布特点,采用链接类型过滤、网页内容过滤、链接内容过滤三层过滤和临时页面存储、目标页面存储、中间链接存储、更新存储四层存储机制,设计并实现了一个对包含多媒体资源(音频、视频和Flash动画)的网页进行搜集的主题蜘蛛.实验结果显示,该主题蜘蛛能有效提高查准率.更多还原

【Abstract】 According to the distributed characteristics of multimedia resources,employing the way of three-filter that is link type filter, page content filter,link content filter and four-store that is temporary page store,targeted-page store,middle link store,update store,a focused-spider which is applied to collect the Web pages that contain the multimedia resources(including audio,video and Flash),is designed and implemented.The experiment results show that this focused-spider can raise the precision ratio greatly.更多还原