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1. 发明授权

US10853429B2 Identifying domain-specific accounts 有权
公开(公告)号：US10853429B2
公开(公告)日：2020-12-01
申请号：US15710660
申请日：2017-09-20
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F16/9535 , G06F16/2457 , G06Q50/00 , G06F16/901 , G06F16/248 , H04L29/08 , H04W4/08
摘要： A method of identifying domain-specific accounts is provided. A method may include identifying a plurality of candidate accounts based on a plurality of seed accounts. The method may further include identifying a subset of candidate accounts of the plurality of candidate accounts based on one more account statistics. Further, the method may include clustering each candidate account of the subset of candidate accounts into either a non-domain-specific cluster or a domain-specific cluster based on a plurality of account statistics. The method may also include updating, at least one of the plurality of candidate accounts and the plurality of seed accounts based on at least one of the non-domain-specific cluster and the domain-specific cluster.

2. 发明授权

US10140880B2 Ranking of segments of learning materials 有权
公开(公告)号：US10140880B2
公开(公告)日：2018-11-27
申请号：US14796872
申请日：2015-07-10
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G09B5/02 , G09B7/00
摘要： A method of automated ranking of segments of learning materials includes calculating a window similarity between first-window content of a first window in a learning material and second-window content of a second window in the learning material. The method may also include in response to the window similarity between the first-window content of the first window and the second-window content of the second window meeting a similarity threshold, generating a first segment that includes at least the first-window content and the second-window content. The method may include calculating a first-segment consistency measurement for the first segment based on a first-segment similarity between the first-segment content in the first segment and a knowledge point. The method may also include ranking the first segment with respect to one or more of the following: a second segment in the learning material and a third segment in a different learning material, wherein the ranking of the first segment is based on one or more of the following: a quality measurement, a learning material type of the learning material, a length of the first segment, and the first-segment consistency measurement of the first segment.

3. 发明授权

US09892194B2 Topic identification in lecture videos 有权
公开(公告)号：US09892194B2
公开(公告)日：2018-02-13
申请号：US14245725
申请日：2014-04-04
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/30
CPC分类号： G06F17/30796 , G06F17/30011 , G06F17/30038 , G06F17/3082 , G06F17/30864 , G06F17/30867
摘要： A method of identifying topics in lecture videos may include receiving lecture video metadata, learning courses metadata, and a lecture video transcript (transcript). The transcript may include transcribed text of a lecture video (video). The method may include discovering candidate learning courses related to the video based on a measured similarity between the video metadata and the learning courses metadata. The method may include extracting key phrases from learning materials of the candidate learning courses. The method may also include assigning weights to the extracted key phrases based on a position of the extracted key phrases and a frequency with which the extracted key phrases appear, and the discovered candidate learning course in which the key phrases appear. The method may include apportioning the video into topic-specific portions based on topic segments generated in the transcript, the presence of the extracted key phrases therein, and the assigned weights.

4. 发明申请

US20170212948A1 COLLECTING AND ORGANIZING ONLINE RESOURCES 审中-公开
公开(公告)号：US20170212948A1
公开(公告)日：2017-07-27
申请号：US15003306
申请日：2016-01-21
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/30
CPC分类号： G06F16/285 , G06F16/24575 , G06F16/24578 , G06F16/437 , G06F16/93
摘要： A method of collecting and organizing online resources may include selecting an item from an electronic document. The method may include extracting data related to the item from the electronic document. The method may include identifying whether a first list that includes the item is associated with the electronic document. The method may include refining the first list in response to an identification of the first list. The method may include generating a second list that includes the item in response to a failure to identify the first list. The method may include verifying that the first list is consistent with a user interest. The method may include saving the first list to an electronic data storage device when the first list is consistent with the user interest. The method may include selecting a second item when the first list is inconsistent with the user interest.

5. 发明授权

US09454612B2 Item selection in curation learning 有权
标题翻译：策划学习中的项目选择
公开(公告)号：US09454612B2
公开(公告)日：2016-09-27
申请号：US14013113
申请日：2013-08-29
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/30
CPC分类号： G06F17/30867
摘要： A method of ranking candidate curation items includes receiving a query. The method also includes extracting items from multiple curations. The method also includes calculating, based on the query, a content similarity measurement for each of the extracted items. The method also includes extracting, from each of the extracted items, multiple curation-specific features. The method also includes calculating one or more curation-specific measurements for each of the extracted items based on the extracted curation-specific features, the one or more curation-specific measurements being different than the content similarity measurement. The method also includes ranking each of the extracted items based on both the content similarity measurement and the one or more curation-specific measurements to generate multiple curation item results.
摘要翻译：排名候选策展项目的方法包括接收查询。该方法还包括从多个策略中提取项目。该方法还包括基于查询来计算每个提取的项目的内容相似性度量。该方法还包括从每个提取的项目提取多个策展特定的特征。该方法还包括基于提取的特定于特征的特征来计算针对每个提取的项目的一个或多个策展特定测量，所述一个或多个策展特定测量不同于内容相似度测量。该方法还包括基于内容相似性测量和一个或多个策展特定测量来对每个提取的项目进行排序以产生多个策展项目结果。

6. 发明授权

US09323810B2 Curation selection for learning 有权
标题翻译：选择学习的选择
公开(公告)号：US09323810B2
公开(公告)日：2016-04-26
申请号：US14013131
申请日：2013-08-29
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/30
CPC分类号： G06F17/3053 , G06F17/30011
摘要： A method of ranking curations includes receiving a query. The method also includes calculating, based on the query, a content similarity measurement for each of multiple curations. The method also includes extracting, from each of the curations, multiple curation-specific features. The method also includes calculating a curation credit measurement for each of the curations based on the extracted curation-specific features. The method also includes ranking each of the curations based on the corresponding content similarity measurement and the corresponding curation credit measurement.
摘要翻译：对策略进行排名的方法包括接收查询。该方法还包括基于查询计算多个策展中的每一个的内容相似性度量。该方法还包括从每个策展提取多个策展特定的特征。该方法还包括基于所提取的针对特定的特征来计算每个策略的策展信用度量。该方法还包括基于相应的内容相似度测量和相应的策展信用度量来对每个策略进行排序。

7. 发明授权

US10902024B2 Collecting and organizing online resources 有权
公开(公告)号：US10902024B2
公开(公告)日：2021-01-26
申请号：US15003306
申请日：2016-01-21
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F16/00 , G06F16/28 , G06F16/93 , G06F16/435 , G06F16/2457
摘要： A method of collecting and organizing online resources may include selecting an item from an electronic document. The method may include extracting data related to the item from the electronic document. The method may include identifying whether a first list that includes the item is associated with the electronic document. The method may include refining the first list in response to an identification of the first list. The method may include generating a second list that includes the item in response to a failure to identify the first list. The method may include verifying that the first list is consistent with a user interest. The method may include saving the first list to an electronic data storage device when the first list is consistent with the user interest. The method may include selecting a second item when the first list is inconsistent with the user interest.

8. 发明授权

US10592737B2 Mathematical formula learner support system 有权
公开(公告)号：US10592737B2
公开(公告)日：2020-03-17
申请号：US15912208
申请日：2018-03-05
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/20 , G06K9/00 , G06F17/21 , G09B19/00 , G09B5/02
摘要： A method to identify information about a mathematical formula may include receiving a mathematical formula included in a first electronic document. The method may also include generating a formatted formula from the mathematical formula. The method may also include finding a returned formula that is similar to or the same as the formatted formula in a plurality of mathematical formulae. The method may also include identifying from at least one other electronic document content that describes the returned formula and includes a derivation of the returned formula.

9. 发明授权

US10146874B2 Refining topic representations 有权
公开(公告)号：US10146874B2
公开(公告)日：2018-12-04
申请号：US14925914
申请日：2015-10-28
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F17/30
摘要： A method to refine topic representations is described. The method may include identifying an original topic representation for a set of electronic documents stored at least temporarily in a non-transitory storage media. The method may include performing, by a processor, an informativeness analysis on the original topic representation. The method may also include performing a topic consistency analysis on the original topic representation. The method may include performing a topic redundancy analysis on the original topic representation in view of a second topic representation. The method may also include generating a refined topic representation based on the informativeness analysis, the consistency analysis and the redundancy analysis.

10. 发明授权

US11625537B2 Analysis of theme coverage of documents 有权
公开(公告)号：US11625537B2
公开(公告)日：2023-04-11
申请号：US16799657
申请日：2020-02-24
申请人： FUJITSU LIMITED
发明人： Jun Wang , Kanji Uchino
IPC分类号： G06F40/30 , G06F40/289 , G06F16/26 , G06N7/00 , G06N20/00
摘要： According to an aspect of an embodiment, operations may include obtaining multiple electronic documents and obtaining a theme text. The method may also include selecting a seed text based on a semantic similarity between the seed text and the theme text. The method may also include changing a seed weight included in a weight vector that is used in identification of topics of the multiple electronic documents. The changed seed weight may bias the identification of topics of the plurality of electronic documents in favor of the seed text as compared to one or more other text strings of the weight vector. The method may also include generating, a representation of a topic model for display to a user, the topic model may be based on the multiple electronic documents and the weight vector.

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