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    • 54. 发明授权
    • System and method for providing default hierarchical training for social indexing
    • 为社会索引提供默认分级培训的系统和方法
    • US08356044B2
    • 2013-01-15
    • US12360825
    • 2009-01-27
    • Mark J. StefikSanjay Mittal
    • Mark J. StefikSanjay Mittal
    • G06F17/30
    • G06Q10/10
    • A system and method for providing default hierarchical training for social indexing is provided. Articles of digital information for social indexing are maintained. A hierarchically-structured tree of topics is specified. Each topic includes a label that includes one or more words. Constraints inherent in the literal structure of the topic tree are identified. For each topic in the topic tree, a topic model that includes at least one term derived from the words in at least one of the labels is created. The topic models for the topic tree are evaluated against the constraints. Those of the topic models, which best satisfy the constraints are identified.
    • 提供了一种用于为社会索引提供默认分级培训的系统和方法。 保持社会索引数字信息文章。 指定了一个分层结构的主题树。 每个主题都包含一个包含一个或多个单词的标签。 确定主题树的文字结构固有的约束。 对于主题树中的每个主题,创建一个包含至少一个从至少一个标签中的单词导出的一个术语的主题模型。 主题树的主题模型将根据约束进行评估。 确定最符合约束条件的主题模型。
    • 59. 发明申请
    • System And Method For Providing Default Hierarchical Training For Social Indexing
    • 为社会索引提供默认分层培训的系统和方法
    • US20100191773A1
    • 2010-07-29
    • US12360825
    • 2009-01-27
    • Mark J. StefikSanjay Mittal
    • Mark J. StefikSanjay Mittal
    • G06F17/30
    • G06Q10/10
    • A system and method for providing default hierarchical training for social indexing is provided. Articles of digital information for social indexing are maintained. A hierarchically-structured tree of topics is specified. Each topic includes a label that includes one or more words. Constraints inherent in the literal structure of the topic tree are identified. For each topic in the topic tree, a topic model that includes at least one term derived from the words in at least one of the labels is created. The topic models for the topic tree are evaluated against the constraints. Those of the topic models, which best satisfy the constraints are identified.
    • 提供了一种用于为社会索引提供默认分级培训的系统和方法。 保持社会索引数字信息文章。 指定了一个分层结构的主题树。 每个主题都包含一个包含一个或多个单词的标签。 确定主题树的文字结构固有的约束。 对于主题树中的每个主题,创建一个包含至少一个从至少一个标签中的单词导出的一个术语的主题模型。 主题树的主题模型将根据约束进行评估。 确定最符合约束条件的主题模型。
    • 60. 发明申请
    • System And Method For Providing A Topic-Directed Search
    • 提供主题搜索的系统和方法
    • US20100057716A1
    • 2010-03-04
    • US12354681
    • 2009-01-15
    • Mark J. StefikLichan HongStuart K. CardPeter L. Pirolli
    • Mark J. StefikLichan HongStuart K. CardPeter L. Pirolli
    • G06F7/06G06F17/30
    • G06F17/3071
    • A system and method for providing a topic-directed search is provided, which advantageously harnesses user-provided topical indexes and an ability to characterize indexes according to how articles fall under their topical organizations. A corpus of articles and an index that includes topics from the articles is maintained. For each topic, a coarse-grained topic model is built, which includes the characteristic words included in the articles relating to the topic and scores assigned to the characteristic words. A search query is executed against the index. The topics that match the search terms are chosen by their scores. The topics that match the coarse-grained topic models and the articles corresponding to the search query are presented. In contrast to conventional search engines, search results are organized according to topic and search results can be offered across multiple indexes, where part of returned results are selected from most-relevant indexes with their most-relevant topics.
    • 提供了一种用于提供主题定向搜索的系统和方法,其有利地利用用户提供的主题索引和根据文章属于其主题组织的方式来表征索引的能力。 维护文章的语料库和包含文章主题的索引。 对于每个主题,构建了一个粗粒度主题模型,其中包括与主题相关的文章中包含的特征词以及分配给特征词的分数。 针对索引执行搜索查询。 与搜索词匹配的主题由他们的分数来选择。 介绍了与粗粒度主题模型匹配的主题以及与搜索查询相对应的文章。 与常规搜索引擎相比,搜索结果根据主题进行组织,搜索结果可以跨多个索引提供,其中返回结果的一部分从与其最相关的主题的最相关的索引中选择。