Patents by Inventor Canasai KRUENGKRAI
Canasai KRUENGKRAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11861307Abstract: A request paraphrasing system 120 allowing a dialogue system to flexibly address to requests in various different manners of expression includes: a pre-processing unit 130 converting a user input 56 to a word vector sequence; and a neural paraphrasing model 94 trained in advance by machine learning to receive the word vector sequence as an input and paraphrasing a request represented by the word vector sequence to a request having a higher probability of obtaining an answer from a question-answering device 122 than the request before paraphrasing. As pre-processing, whether the user input 56 is a request or not may be determined and it may be paraphrased only when it is determined to be a request. Further, a classification model 98 may classify the input request to determine to which request class it belongs, and the classification may be input as one feature to neural paraphrasing model 94.Type: GrantFiled: March 5, 2019Date of Patent: January 2, 2024Assignee: National Institute of Information and Communications TechnologyInventors: Yoshihiko Asao, Ryu Iida, Canasai Kruengkrai, Noriyuki Abe, Kanako Onishi, Kentaro Torisawa, Yutaka Kidawara
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Patent number: 11256658Abstract: A causality recognizing apparatus includes a candidate vector generating unit configured to receive a causality candidate for generating a candidate vector representing a word sequence forming the candidate; a context vector generating unit generating a context vector representing a context in which noun-phrases of cause and effect parts of the causality candidate appear; a binary pattern vector generating unit, an answer vector generating unit and a related passage vector generating unit, generating a word vector representing background knowledge for determining whether or not there is causality between the noun-phrase included in the cause part and the noun-phrase included in the effect part; and a multicolumn convolutional neural network learned in advance to receive these word vectors and to determine whether or not the causality candidate has causality.Type: GrantFiled: September 28, 2017Date of Patent: February 22, 2022Assignee: NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGYInventors: Canasai Kruengkrai, Chikara Hashimoto, Kentaro Torisawa, Julien Kloetzer, Jonghoon Oh, Masahiro Tanaka
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Patent number: 11176328Abstract: A question answering device includes: a general word vector converter converting a question and an answer to semantic vectors in accordance with general context; a general sentence level CNN 214, in response to similarities of semantic vectors between words in question and answer and to strength of causality between the words, for weighting each semantic vector to calculate sentence level representations of the question and the answer; a general passage level CNN 218, in response to similarity between sentence level representations of question and answer, and to strength of relation of vectors in the sentence level representations viewed from causality, for weighting the sentence level representation to calculate a passage level representation for the question and answer passage; and a classifier determining whether or not an answer is a correct answer, based on the similarities between outputs from CNNs 214 and 218.Type: GrantFiled: June 14, 2018Date of Patent: November 16, 2021Assignee: National Institute of Information and Communications TechnologyInventors: Jonghoon Oh, Kentaro Torisawa, Canasai Kruengkrai, Ryu Iida, Julien Kloetzer
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Publication number: 20210326675Abstract: A memory for a question-answering device that reduces influence of noise on answer generation and is capable of generating highly accurate answers includes: a memory configured to normalize vector expressions of answers included in a set of answers extracted from a prescribed background knowledge source for each of a plurality of mutually different questions and to store the results as normalized vectors; and a key-value memory access unit responsive to application of a question vector derived from a question for accessing the memory and for updating the question vector by using a degree of relatedness between the question vector and the plurality of questions and using the normalized vectors corresponding to respective ones of the plurality of questions.Type: ApplicationFiled: June 18, 2019Publication date: October 21, 2021Inventors: Jonghoon OH, Kentaro TORISAWA, Canasai KRUENGKRAI, Julien KLOETZER, Ryu IIDA, Ryo ISHIDA, Yoshihiko ASAO
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Publication number: 20210286948Abstract: A causality recognizing apparatus includes a candidate vector generating unit configured to receive a causality candidate for generating a candidate vector representing a word sequence forming the candidate; a context vector generating unit generating a context vector representing a context in which noun-phrases of cause and effect parts of the causality candidate appear; a binary pattern vector generating unit, an answer vector generating unit and a related passage vector generating unit, generating a word vector representing background knowledge for determining whether or not there is causality between the noun-phrase included in the cause part and the noun-phrase included in the effect part; and a multicolumn convolutional neural network learned in advance to receive these word vectors and to determine whether or not the causality candidate has causality.Type: ApplicationFiled: September 28, 2017Publication date: September 16, 2021Inventors: Canasai KRUENGKRAI, Chikara HASHIMOTO, Kentaro TORISAWA, Julien KLOETZER, Jonghoon OH, Masahiro TANAKA
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Patent number: 11113335Abstract: A dialogue system includes a response utterance selecting unit generating a response utterance original sentence to an input utterance; an input utterance emotion estimating unit estimating emotion of the input utterance by calculating input utterance emotion scores indicating degree of matching between the emotion represented by the input utterance and a plurality of emotions; and a response utterance modifying unit for calculating response utterance emotion scores of a response utterance original sentence as emotion scores for each of the plurality of emotions, modifying the response utterance original sentence by a method of modification determined by the values of input utterance emotion score and the response utterance emotion score, and thereby generating and outputting a response utterance.Type: GrantFiled: March 15, 2018Date of Patent: September 7, 2021Assignee: National Institute of Information and Communications TechnologyInventors: Noriyuki Abe, Kanako Onishi, Kentaro Torisawa, Canasai Kruengkrai, Yutaka Kidawara
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Patent number: 11106714Abstract: A summary generating apparatus includes a text storage device storing text with information indicating a portion to be focused on; word vector converters vectorizing each word of the text and adding an element indicating whether the word is focused on or not to the vector and thereby converting the text to a word vector sequence; an LSTM implemented by a neural network performing sequence-to-sequence type conversion, pre-trained by machine learning to output, in response to each of the word vectors of the word vector sequence input in a prescribed order, a summary of the text consisting of the words represented by the word sequence; and input units inputting each of the word vectors of the word vector sequence in the prescribed order to the neural network.Type: GrantFiled: May 7, 2018Date of Patent: August 31, 2021Assignee: National Institute of Information and Communications TechnologyInventors: Ryu Iida, Kentaro Torisawa, Jonghoon Oh, Canasai Kruengkrai, Yoshihiko Asao, Noriyuki Abe, Junta Mizuno, Julien Kloetzer
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Patent number: 10936664Abstract: A dialogue system includes: a question generating unit receiving an input sentence from a user and generating a question using an expression included in the input sentence, by using a dependency relation; an answer obtaining unit inputting the question generated by the question generating unit to a question-answering system and obtaining an answer to the question from question-answering system; and an utterance generating unit for generating an output sentence to the input sentence, based on the answer obtained by the answer obtaining unit.Type: GrantFiled: July 26, 2017Date of Patent: March 2, 2021Assignee: National Institute of Information and Communications TechnologyInventors: Noriyuki Abe, Kanako Onishi, Kentaro Torisawa, Canasai Kruengkrai, Jonghoon Oh, Ryu Iida, Yutaka Kidawara
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Publication number: 20210034817Abstract: A request paraphrasing system 120 allowing a dialogue system to flexibly address to requests in various different manners of expression includes: a pre-processing unit 130 converting a user input 56 to a word vector sequence; and a neural paraphrasing model 94 trained in advance by machine learning to receive the word vector sequence as an input and paraphrasing a request represented by the word vector sequence to a request having a higher probability of obtaining an answer from a question-answering device 122 than the request before paraphrasing. As pre-processing, whether the user input 56 is a request or not may be determined and it may be paraphrased only when it is determined to be a request. Further, a classification model 98 may classify the input request to determine to which request class it belongs, and the classification may be input as one feature to neural paraphrasing model 94.Type: ApplicationFiled: March 5, 2019Publication date: February 4, 2021Inventors: Yoshihiko ASAO, Ryu IIDA, Canasai KRUENGKRAI, Noriyuki ABE, Kanako ONISHI, Kentaro TORISAWA, Yutaka KIDAWARA
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Publication number: 20200233908Abstract: A dialogue system includes a response utterance selecting unit generating a response utterance original sentence to an input utterance; an input utterance emotion estimating unit estimating emotion of the input utterance by calculating input utterance emotion scores indicating degree of matching between the emotion represented by the input utterance and a plurality of emotions; and a response utterance modifying unit for calculating response utterance emotion scores of a response utterance original sentence as emotion scores for each of the plurality of emotions, modifying the response utterance original sentence by a method of modification determined by the values of input utterance emotion score and the response utterance emotion score, and thereby generating and outputting a response utterance.Type: ApplicationFiled: March 15, 2018Publication date: July 23, 2020Inventors: Noriyuki ABE, Kanako ONISHI, Kentaro TORISAWA, Canasai KRUENGKRAI, Yutaka KIDAWARA
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Publication number: 20200183983Abstract: A dialogue system includes: a question generating unit receiving an input sentence from a user and generating a question using an expression included in the input sentence, by using a dependency relation; an answer obtaining unit inputting the question generated by the question generating unit to a question-answering system and obtaining an answer to the question from question-answering system; and an utterance generating unit for generating an output sentence to the input sentence, based on the answer obtained by the answer obtaining unit.Type: ApplicationFiled: July 26, 2017Publication date: June 11, 2020Inventors: Noriyuki ABE, Kanako ONISHI, Kentaro TORISAWA, Canasai KRUENGKRAI, Jonghoon OH, Ryu IIDA, Yutaka KIDAWARA
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Publication number: 20200159755Abstract: A summary generating apparatus includes; a text storage device storing text with information indicating a portion to be focused on; word vector converters vectorizing each word of the text and adding an element indicating whether the word is focused on or not to the vector and thereby converting the text to a word vector sequence; an LSTM implemented by a neural network performing sequence-to-sequence type conversion, pre-trained by machine learning to output, in response to each of the word vectors of the word vector sequence input in a prescribed order, a summary of the text consisting of the words represented by the word sequence; and input units inputting each of the word vectors of the word vector sequence in the prescribed order to the neural network.Type: ApplicationFiled: May 7, 2018Publication date: May 21, 2020Inventors: Ryu IIDA, Kentaro TORISAWA, Jonghoon OH, Canasai KRUENGKRAI, Yoshihiko ASAO, Noriyuki ABE, Junta MIZUNO, Julien KLOETZER
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Publication number: 20200134263Abstract: A question answering device includes: a general word vector converter converting a question and an answer to semantic vectors in accordance with general context; a general sentence level CNN 214, in response to similarities of semantic vectors between words in question and answer and to strength of causality between the words, for weighting each semantic vector to calculate sentence level representations of the question and the answer; a general passage level CNN 218, in response to similarity between sentence level representations of question and answer, and to strength of relation of vectors in the sentence level representations viewed from causality, for weighting the sentence level representation to calculate a passage level representation for the question and answer passage; and a classifier determining whether or not an answer is a correct answer, based on the similarities between outputs from CNNs 214 and 218.Type: ApplicationFiled: June 14, 2018Publication date: April 30, 2020Inventors: Jonghoon OH, Kentaro TORISAWA, Canasai KRUENGKRAI, Ryu IIDA, Julien KLOETZER
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Publication number: 20200034722Abstract: A question-answering system includes a storage unit storing expressions representing causality; an answer receiving unit receiving a question and answer passages each including an answer candidate to the question; a causality expression extracting unit extracting a causality expression from each of the answer passages; a relevant causality expression extracting unit selecting, for a combination of the question and an answer passage, an expression most relevant to the combination, from the storage unit; and a neural network receiving the question, the answer passages, semantic relation expressions related to the answer passages, and one of the relevant expressions for the combination of the question and the answer passages, and selecting an answer to the question from the answer passages.Type: ApplicationFiled: October 2, 2017Publication date: January 30, 2020Inventors: Jonghoon OH, Kentaro TORISAWA, Canasai KRUENGKRAI, Ryu IIDA, Julien KLOETZER
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Publication number: 20190188257Abstract: A context analysis apparatus includes an analysis control unit for detecting a predicate of which subject is omitted and antecedent candidates thereof, and an anaphora/ellipsis analysis unit determining a word to be identified. The anaphora/ellipsis analysis unit includes: word vector generating units generating a plurality of different types of word vectors from sentences for the antecedent candidates; a convolutional neural network receiving as an input a word vector and trained to output a score indicating the probability of each antecedent candidate being the omitted word; and a list storage unit and a identification unit determining a antecedent candidate having the highest score. The word vectors include a plurality of word vectors each extracted at least by using the object of analysis and character sequences of the entire sentences other than the candidates. Similar processing is also possible on other words such as a referring expression.Type: ApplicationFiled: August 30, 2017Publication date: June 20, 2019Inventors: Ryu IIDA, Kentaro TORISAWA, Canasai KRUENGKRAI, Jonghoon OH, Julien KLOETZER