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    • 4. 发明申请
    • FRAMEWORK FOR DOCUMENT KNOWLEDGE EXTRACTION
    • 文件知识提取框架
    • US20130246435A1
    • 2013-09-19
    • US13419690
    • 2012-03-14
    • Jun YanLei JiEdward W. WildYi LiNing LiuZheng Chen
    • Jun YanLei JiEdward W. WildYi LiNing LiuZheng Chen
    • G06F17/30
    • G06F16/355
    • A knowledge extraction framework may iteratively enrich an ontology that is used to classify structured knowledge obtained from web pages based on structured knowledge previously acquired from other web pages. The framework may enable a user to define the ontology for extracting structured knowledge from a plurality of web pages. The framework applies the ontology using a supervised extraction algorithm to extract seed information from a set of web pages. The framework further applies an unsupervised extraction algorithm to extract the structured knowledge from an additional set of web pages. The framework subsequently maps the structured knowledge to the ontology based on the seed information to enrich the ontology.
    • 知识提取框架可以迭代地丰富用于基于先前从其他网页获取的结构化知识对从网页获得的结构化知识进行分类的本体。 框架可以使用户能够定义用于从多个网页提取结构化知识的本体。 该框架使用监督提取算法应用本体,从一组网页中提取种子信息。 该框架进一步应用无监督提取算法从一组额外的网页提取结构化知识。 该框架随后基于种子信息将结构化知识映射到本体,以丰富本体。
    • 8. 发明申请
    • Efficient retrieval algorithm by query term discrimination
    • 通过查询词辨别的有效检索算法
    • US20080288483A1
    • 2008-11-20
    • US11804627
    • 2007-05-18
    • Chenxi LinLei JiHuajun ZengBenyu ZhangZheng ChenJian Wang
    • Chenxi LinLei JiHuajun ZengBenyu ZhangZheng ChenJian Wang
    • G06F17/30
    • G06F17/30675
    • Described is an efficient retrieval mechanism that quickly locates documents (e.g., corresponding to online advertisements) based on query term discrimination. A topmost subset (e.g., two) of search terms is selected according to their ranked importance, e.g., as ranked by inverted document frequency. The topmost terms are then used to narrow the number of rows of an inverted query index that are searched to find document identifiers and associated scores, such as computed offline by a BM25 algorithm. For example, for each document identifier of each important term, a fast search within each of the narrowed subset of rows (that also contain that document identifier) may be performed by comparing document identifiers to jump a pointer within each other row, followed by a binary search to locate a particular document. The scores of the set of particular documents may then be used to rank their relative importance for returning as results.
    • 描述了一种有效的检索机制,其基于查询词辨别快速定位文档(例如,对应于在线广告)。 根据其排序的重要性来选择搜索项的最顶层子集(例如,两个),例如按照倒排的文档频率排序。 然后使用最上面的术语来缩小被搜索以查找文档标识符和相关分数的反向查询索引的行数,例如通过BM25算法离线计算。 例如,对于每个重要术语的每个文档标识符,可以通过比较文档标识符来跳过每个其他行中的指针,然后是一个指针,来执行每个狭窄的行子集(也包含该文档标识符)的快速搜索 二进制搜索查找特定文档。 然后可以使用该组特定文件的分数来排列其作为结果返回的相对重要性。
    • 9. 发明授权
    • Transfer of learning for query classification
    • 转移学习查询分类
    • US08719192B2
    • 2014-05-06
    • US13081391
    • 2011-04-06
    • Lei JiJun YanNing LiuZheng Chen
    • Lei JiJun YanNing LiuZheng Chen
    • G06N5/02G06F17/30
    • G06N99/005
    • Transfer of learning trains a new domain for the classification of search queries according to different tasks, as well as the generation of a corresponding domain-specific query classifier that may be used to classify the search queries according to the different tasks in the new domain. The transfer of learning may include preparing a new domain to receive classification knowledge from one or more source domains by populating the new domain with preliminary query patterns extracted for a search engine log. The transfer of learning may further include preparing the classification knowledge in each source domain for transfer to the new domain. The classification knowledge in each source domain may then be transferred to the new domain.
    • 学习的转移为根据不同任务对搜索查询进行分类的新领域提供了新的领域,以及生成可用于根据新域中的不同任务对搜索查询进行分类的相应的域特定查询分类器。 学习的转移可能包括准备一个新的域,以通过用搜索引擎日志提取的初步查询模式填充新域来从一个或多个源域接收分类知识。 学习的转移还可以包括准备每个源域中的分类知识以转移到新的域。 然后可以将每个源域中的分类知识转移到新域。
    • 10. 发明授权
    • Related links recommendation
    • 相关链接推荐
    • US08412726B2
    • 2013-04-02
    • US12793047
    • 2010-06-03
    • Jun YanNing LiuZheng ChenLei JiJiulong WangXiao Liang
    • Jun YanNing LiuZheng ChenLei JiJiulong WangXiao Liang
    • G06F17/30
    • G06F17/30867
    • The related links recommendation technique described herein employs combined collaborative filtering to recommend related web pages to users. The technique creates multiple collaborative filters which are combined in order to create a combined collaborative filter to recommend web pages similar to a given web page to a user. One query-based collaborative filter is created by using query search clicks (e.g., user input device selection actions on search results returned in response to a search query). Another user-behavior-based collaborative filter is created by using query search clicks and user clicks while browsing websites (e.g., user input device selection actions while a user is browsing websites). Lastly, another content-based collaborative filter based on similar content of web pages is created by finding web pages with similar content.
    • 本文描述的相关链接推荐技术采用组合协同过滤来向用户推荐相关网页。 该技术创建了多个协作过滤器,这些过滤器被组合以便创建组合的协同过滤器以向用户推荐类似于给定网页的网页。 通过使用查询搜索点击创建一个基于查询的协作过滤器(例如,响应于搜索查询返回的搜索结果上的用户输入设备选择动作)。 通过在浏览网站时使用查询搜索点击和用户点击创建另一个基于用户行为的协作过滤器(例如,用户浏览网站时的用户输入设备选择动作)。 最后,通过查找具有相似内容的网页来创建基于类似内容的网页的另一基于内容的协作过滤器。