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1. 发明申请

US20050022115A1 Visual and interactive wrapper generation, automated information extraction from web pages, and translation into xml 失效
标题翻译：视觉和交互式包装生成，从网页自动提取信息，并翻译成xml
公开(公告)号：US20050022115A1
公开(公告)日：2005-01-27
申请号：US10479039
申请日：2002-05-28
申请人： Roberts Baumgartner , Sergio I'Lesca , Georg Gottlob , Marcus Herzoo
发明人： Roberts Baumgartner , Sergio I'Lesca , Georg Gottlob , Marcus Herzoo
IPC分类号： G06F15/00 , G06F17/30
CPC分类号： G06F17/30911 , G06F17/30867
摘要： A method and a system for information extraction from Web pages formatted with markup languages such as HTML [8]. A method and system for interactively and visually describing information patterns of interest based on visualized sample Web pages [5,6,16-29]. A method and data structure for representing and storing these patterns [1]. A method and system for extracting information corresponding to a set of previously defined patterns from Web pages [2], and a method for transforming the extracted data into XML is described. Each pattern is defined via the (interactive) specification of one or more filters. Two or more filters for the same pattern contribute disjunctively to the pattern definition [3], that is, an actual pattern describes the set of all targets specified by any of its filters. A method and for extracting relevant elements from Web pages by interpreting and executing a previously defined wrapper program of the above form on an input Web page [9-14] and producing as output the extracted elements represented in a suitable data structure. A method and system for automatically translating said output into XML format by exploiting the hierarchical structure of the patterns and by using pattern names as XML tags is described.
摘要翻译：一种使用HTML等标记语言格式化的网页进行信息提取的方法和系统[8]。基于可视化样本网页的交互式和视觉描述感兴趣信息模式的方法和系统[5,6,16-29]。一种用于表示和存储这些模式的方法和数据结构[1]。描述了一种从Web页面提取与一组先前定义的模式相关的信息的方法和系统，以及一种将所提取的数据变换为XML的方法。每个模式通过一个或多个过滤器的（交互式）规范定义。相同模式的两个或更多个过滤器对模式定义[3]有分歧，即实际模式描述了其任何过滤器指定的所有目标集。一种用于通过在输入网页上解释并执行上述形式的先前定义的包装程序来从网页中提取相关元素的方法，并且以合适的数据结构的形式产生提取的元素作为输出。描述了通过利用模式的层次结构以及通过使用模式名作为XML标签将所述输出自动地翻译成XML格式的方法和系统。

2. 发明授权

US07581170B2 Visual and interactive wrapper generation, automated information extraction from Web pages, and translation into XML 失效
标题翻译：视觉和交互式包装器生成，从Web页面自动提取信息，并翻译成XML
公开(公告)号：US07581170B2
公开(公告)日：2009-08-25
申请号：US10479039
申请日：2002-05-28
申请人： Robert Baumgartner , Sergio I'Lesca , Georg Gottlob , Marcus Herzoo
发明人： Robert Baumgartner , Sergio I'Lesca , Georg Gottlob , Marcus Herzoo
IPC分类号： G06N3/00
CPC分类号： G06F17/30911 , G06F17/30867
摘要： A method and a system for information extraction from Web pages formatted with markup languages such as HTML [8]. A method and system for interactively and visually describing information patterns of interest based on visualized sample Web pages [5,6,16-29]. A method and data structure for representing and storing these patterns [1]. A method and system for extracting information corresponding to a set of previously defined patterns from Web pages [2], and a method for transforming the extracted data into XML is described. Each pattern is defined via the (interactive) specification of one or more filters. Two or more filters for the same pattern contribute disjunctively to the pattern definition [3], that is, an actual pattern describes the set of all targets specified by any of its filters. A method and for extracting relevant elements from Web pages by interpreting and executing a previously defined wrapper program of the above form on an input Web page [9-14] and producing as output the extracted elements represented in a suitable data structure. A method and system for automatically translating said output into XML format by exploiting the hierarchical structure of the patterns and by using pattern names as XML tags is described.
摘要翻译：一种使用HTML等标记语言格式化的网页进行信息提取的方法和系统[8]。基于可视化样本网页的交互式和视觉描述感兴趣信息模式的方法和系统[5,6,16-29]。一种用于表示和存储这些模式的方法和数据结构[1]。描述了一种从Web页面提取与一组先前定义的模式相关的信息的方法和系统，以及一种将所提取的数据变换为XML的方法。每个模式通过一个或多个过滤器的（交互式）规范定义。相同模式的两个或更多个过滤器对模式定义[3]有分歧，即实际模式描述了其任何过滤器指定的所有目标集。一种用于通过在输入网页上解释并执行上述形式的先前定义的包装程序来从网页中提取相关元素的方法，并且以合适的数据结构的形式产生提取的元素作为输出。描述了通过利用模式的层次结构以及通过使用模式名作为XML标签将所述输出自动地翻译成XML格式的方法和系统。

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