公开(公告)号：US20180089181A1

公开(公告)日：2018-03-29

申请号：US15558635

申请日：2015-03-18

Applicant: NEC Corporation

Inventor： Takashi ONISHI ,  Kosuke YAMAMOTO ,  Masaaki TSUCHIDA ,  Susumu AKAMINE

IPC: G06F17/28 ,  G06F17/30 ,  G06F17/27 ,  G06F17/24

CPC classification number: G06F17/2872 ,  G06F16/00 ,  G06F16/22 ,  G06F16/252 ,  G06F16/93 ,  G06F17/245 ,  G06F17/2775

Abstract: A text visualization system allows a user to ascertain a relationship of viewpoints between categories in clustering of documents including texts of a plurality of categories. Each of a plurality of documents includes texts of each of a plurality of categories. A text and an element text that entails the text among texts included in the plurality of documents are set with respect to each of the categories. A text display displays a plurality of texts of each of one or more categories among the plurality of categories. The text display, in response to receiving a designation of a text of a specific category by a reception unit, extracts, from a plurality of texts of another category, a text that entails an element text of the another category included in a document including an element text that entails the text of the specific category, and displays the extracted text.

公开(公告)号：US20160012034A1

公开(公告)日：2016-01-14

申请号：US14769866

申请日：2014-02-28

Applicant: NEC Corporation

Inventor： Daniel Georg ANDRADE SILVA ,  Kai ISHIKAWA ,  Masaaki TSUCHIDA ,  Takashi ONISHI

IPC: G06F17/27

CPC classification number: G06F17/279 ,  G06F17/2705 ,  G06F17/2785

Abstract: An entailment evaluation device includes: a generation unit which generates first information indicating at least the order of occurrence of events of first and second simple sentences included in the hypothesis text and generates second information indicating at least the order of occurrence of events of third and fourth simple sentences included in a target text, the third simple sentence being related to the first simple sentence, the fourth simple sentence being related to the second simple sentence; a calculation unit which obtains a calculation result by comparing, based on the first and second information, the order of occurrence of events of first and second simple sentences and order of occurrence of events of third and fourth simple sentences; and a determination unit which determines, based on at least the calculation result, whether or not the target text entails the hypothesis text.

Abstract translation: 包含评估装置包括：生成单元，生成指示至少包含在假设文本中的第一和第二简单句子的事件的发生顺序的第一信息，并生成表示至少第三和第四事件的发生顺序的第二信息 包含在目标文本中的简单句子，第三个简单句子与第一个简单句子相关，第四个简单句子与第二个简单句子相关; 计算单元，其通过基于第一和第二信息比较第一和第二简单句子的事件的发生顺序以及第三和第四简单句子的事件的发生顺序来比较获得计算结果; 以及确定单元，其至少基于所述计算结果确定所述目标文本是否涉及所述假设文本。

公开(公告)号：US20160004736A1

公开(公告)日：2016-01-07

申请号：US14770534

申请日：2014-03-05

Applicant: NEC CORPORATION

Inventor： Masaaki TSUCHIDA ,  Kai ISHIKAWA

IPC: G06F17/30

CPC classification number: G06F16/2228 ,  G06F16/2455 ,  G06F16/90

Abstract: A similar data search device includes: an inverted index generating unit which determines size ranges of sets of search targets for each of inverted indexes so that the number of sets of search targets is not smaller than a specified number and generates inverted indexes by dividing the sets of search targets according to the determined size ranges; an unnecessary inverted index identifying unit which determines, based on a size of a set of search conditions and a threshold value specified for a similarity between sets, a condition necessary for the similarity to be no smaller than the threshold value, and identifies, as an inverted index unnecessary for searches, any inverted index other than those inverted indexes containing a set whose minimum size value satisfies the condition; and a data search unit which conducts a search on a non-identified inverted index.

Abstract translation: 类似的数据搜索装置包括：反向索引生成单元，其确定每个反向索引的搜索目标集合的大小范围，使得搜索目标的集合的数量不小于指定的数量，并且通过将集合 的搜索目标根据确定的大小范围; 不必要的反转索引识别单元，其基于搜索条件的集合的大小和为集合之间的相似性指定的阈值，确定相似度不小于阈值的条件，并将其识别为 搜索所需的倒排索引，除了包含最小尺寸值满足条件的集合的反转索引以外的任何反向索引; 以及数据搜索单元，其对未识别的反向索引进行搜索。

公开(公告)号：US20170255611A1

公开(公告)日：2017-09-07

申请号：US15506293

申请日：2015-08-20

Applicant: NEC Corporation

Inventor： Shumpei KUBOSAWA ,  Masaaki TSUCHIDA ,  Kai ISHIKAWA

IPC: G06F17/27

CPC classification number: G06F17/2785 ,  G06F17/2705 ,  G06F17/2755

Abstract: A text processing system that is able to appropriately determine textual entailment between sentences with high coverage is provided. The text processing system is configured to execute: processing of extracting a common substructure that is a partial structure of a same type, the partial structure being common to a first sentence and a second sentence and, based on the a structure representing the first sentence and a structure representing the second sentence; processing of extracting at least one of a feature amount representing a dependency relationship between the at least one common substructure in the first and second sentences and a feature amount representing a dependency relationship between the common substructure in the first and second sentences and a substructure different from the common substructure; and processing of determining an entailment relationship between the first sentence and the second sentence by using the extracted feature amount.

公开(公告)号：US20150356152A1

公开(公告)日：2015-12-10

申请号：US14759264

申请日：2014-01-10

Applicant: NEC CORPORATION

Inventor： Masaaki TSUCHIDA ,  Kai ISHIKAWA ,  Takashi ONISHI

IPC: G06F17/30

CPC classification number: G06F16/2465 ,  G06F16/24578 ,  G06F16/248 ,  G06F16/285 ,  G06F17/2211

Abstract: A text mining device includes: an analysis unit which acquires, from data including text and one or more attributes including an attribute name and an attribute value and associated with the text, the attributes as analysis viewpoints, analyzes the data using the respective analysis viewpoints to obtain an analysis result from each analysis viewpoint, and generates result vectors of the respective analysis viewpoints; a similarity acquisition unit which acquires a vector similarity between the result vectors of the plural analysis viewpoints; and a recommendation unit which extracts and output a combination of the analysis viewpoints as a recommendation candidate on basis of the vector similarity.

Abstract translation: 一种文本挖掘装置包括：分析单元，从包括文本的数据和包括属性名称和属性值的一个或多个属性并与文本相关联的数据获取作为分析视点的属性，使用各自的分析视点分析数据 从每个分析视点获得分析结果，并生成各个分析视点的结果向量; 相似度获取单元，其获取所述多个分析视点的结果矢量之间的向量相似度; 以及推荐单元，其基于矢量相似度提取并输出分析视点的组合作为推荐候选。

公开(公告)号：US20170330108A1

公开(公告)日：2017-11-16

申请号：US15529330

申请日：2015-11-16

Applicant: NEC Corporation

Inventor： Masaaki TSUCHIDA ,  Kentarou SASAKI

IPC: G06N99/00 ,  G06F17/30

CPC classification number: G06N20/00 ,  G06F16/00 ,  G06F16/285

Abstract: A classification model with a high precision ratio at a high recall ratio is learned. A classification model learning system (100) includes a learning data storage unit (110) and a learning unit (130). The learning data storage unit (110) stores pieces of learning data each of which has been classified as a positive example or a negative example. The learning unit (130) learns, by using the pieces of learning data, a classification model in such a way that a precision ratio of classification by the classification model is made larger under a constraint of a minimum value of a recall ratio of classification by the classification model.

公开(公告)号：US20170154035A1

公开(公告)日：2017-06-01

申请号：US15327614

申请日：2015-06-26

Applicant: NEC Corporation

Inventor： Takashi ONISHI ,  Masaaki TSUCHIDA ,  Kosuke YAMAMOTO ,  Hironori MIZUGUCHI ,  Kai ISHIKAWA

IPC: G06F17/27 ,  G06F17/30 ,  G06F17/21

CPC classification number: G06F17/2775 ,  G06F16/334 ,  G06F16/355 ,  G06F16/358 ,  G06F17/21 ,  G06F17/2229 ,  G06F17/2785

Abstract: Provided is a text processing system which, when an attribute corresponding to one tabulation axis is set, is capable of generating a text group which will produce non-obvious tabulation results when cross-tabulation is performed using that attribute. At the time of input of respective attribute values of an attribute which corresponds to a tabulation axis in cross tabulation and a document associated with any one of the attribute values of the attribute, text extraction means 71 extracts portion not including the attribute value of the attribute from each text obtained by dividing the document into predetermined units. Group generation means 72 performs entailment recognition between texts on the extracted texts and groups texts having an entailment relation.

公开(公告)号：US20160224654A1

公开(公告)日：2016-08-04

申请号：US14915797

申请日：2014-09-17

Applicant: NEC CORPORATION

Inventor： Masaaki TSUCHIDA ,  Kai ISHIKAWA ,  Takashi ONISHI

IPC: G06F17/30 ,  G06N99/00

CPC classification number: G06F16/285 ,  G06F16/35 ,  G06F16/93 ,  G06N20/00

Abstract: A classification dictionary generation apparatus includes: a lower threshold storage unit that stores lower threshold information that determines a lower threshold of dimensional values of a classification dictionary for classifying a category of a document; and a control unit that generates the classification dictionary based on learning data whose category is known, wherein the control unit generates, based on the lower threshold information stored in the lower threshold storage unit, the classification dictionary in which all of the dimensional values are equal to or larger than the lower threshold.

Abstract translation: 分类词典生成装置包括：下阈值存储单元，其存储下位阈值信息，所述下阈值信息确定用于对文档的类别进行分类的分类词典的下限阈值; 以及控制单元，其基于类别已知的学习数据生成分类词典，其中，所述控制单元基于存储在所述下阈值存储单元中的下阈值信息，生成其中所有维值相等的分类词典 达到或大于下阈值。

公开(公告)号：US20180081966A1

公开(公告)日：2018-03-22

申请号：US15558354

申请日：2015-03-18

Applicant: NEC CORPORATION

Inventor： Takashi ONISHI ,  Kosuke YAMAMOTO ,  Susumu AKAMINE ,  Takao KAWAI ,  Masaaki TSUCHIDA

IPC: G06F17/30

CPC classification number: G06F16/34 ,  G06F16/00 ,  G06F16/353

Abstract: A text visualization system which allows a user to efficiently ascertain a result of clustering of texts is provided. A clustering system (1) includes a representative text display unit (51), a reception unit (55), and an element text display unit (52). The clustering system (1) is accessibly connected to a storage that stores a plurality of texts and information indicating a representative text and an element text that entails the representative text among the plurality of texts. The representative text display unit (51) displays a plurality of representative texts. The reception unit (55) receives a designation of a specific representative text among the plurality of representative texts. The element text display unit (52) extracts, in response to receiving the designation of the specific representative text, an element text that entails the designated specific representative text from the plurality of texts, and displays the extracted element text.

公开(公告)号：US20170220585A1

公开(公告)日：2017-08-03

申请号：US15328199

申请日：2015-07-21

Applicant: NEC Corporation

Inventor： Kosuke YAMAMOTO ,  Takashi ONISHI ,  Masaaki TSUCHIDA ,  Hironori MIZUGUCHI

IPC: G06F17/30

CPC classification number: G06F16/355

Abstract: A similar sentence set generation unit 81 groups sentences representing a same concept or event from a set of analysis target sentences, to generate a similar sentence set. A similar sentence set extraction unit 82 extracts, using one or more specific sentence extractors each capable of extracting a specific sentence belonging to a specific classification from the set of analysis target sentences, one or more sentences not extracted by any of the specific sentence extractors from among the sentences belonging to the similar sentence set, as an exclusion similar sentence set.