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37results about How to "Correct answer" patented technology

Seat-assisted question-answering method and system fusing semantic classification and knowledge graph

The invention discloses a seat-assisted question-answering method and system fusing semantic classification and a knowledge graph. The method comprises the following steps: S1, collecting and preprocessing corpora; S2, constructing a knowledge graph question and answer library: constructing a data set according to the data preprocessed in the step S1, and establishing the knowledge graph question and answer library by using the constructed triple data set, each triple being composed of a question entity, a question attribute and an answer; S3, constructing an entity recognition model; S4, retrieving the knowledge graph; S5, extracting keywords: performing keyword extraction on the corpus preprocessed in the step S1, and storing an extraction result into a database; S6, clusting k-means problems; and S7, similarity calculation of candidate answers: performing text similarity calculation on the candidate answers obtained in the steps S4 and S6 and the question input by the user to obtain a text answer with the highest similarity value, and outputting the text answer to the user. According to the invention, the wire incoming intention of the user can be accurately identified and corresponding knowledge can be retrieved.
Owner:JIANGSU HONGXIN SYST INTEGRATION

Knowledge mapping technology-based garment customer service intelligent service method and system

The invention discloses a knowledge mapping technology-based garment customer service intelligent service method and system. A knowledge mapping database is built, then first-grade classification is carried out according to user attributes, a second-grade classification is carried out according to garment types and a third-grade classification is carried out according to garment attributes; corresponding data information is arranged under each third-grade classification; semantic parsing is conducted to visitor questions; key word information corresponding to the user attributes, garment types and garment attributes are extracted from the visitor questions; the first-grade classification, the second-grade classification and the third-grade classification corresponding to the knowledge mapping database are matched according to the extracted key word information to achieve data information corresponding to the three grades of classification; and providing corresponding answers to the visitor questions according to the achieved data information. By the use of the knowledge mapping technology-based garment customer service intelligent service method and system, data information required by a visitor can be quickly and accurately achieved, so natural language understanding and parsing capacity during intelligent customer service can be enhanced, question answering accuracy can be increased and visitor satisfaction degree can be improved.
Owner:XIAMEN KUAISHANGTONG TECH CORP LTD

Method for performing multi-mode video question answering by using frame-subtitle self-supervision

The invention belongs to the field of video questions and answers, and particularly relates to a method for performing multi-mode video question answering by using frame-subtitle self-supervision. The method includes the following steps: extracting video frame features, question and answer features, subtitle features and subtitle suggestion features; obtaining frame features with attention and caption features with attention, and obtaining fusion features; calculating and obtaining a time attention score based on the fusion feature; calculating and obtaining the time boundary of the question by using the time attention score; calculating and obtaining answers to the questions by adopting the fusion features and the time attention scores; training a neural network by using the time boundary of the question and the answer of the question; and optimizing network parameters of the neural network, performing video question answering by using the optimal neural network, and delimiting a time boundary. The time boundary related to the problem is generated according to the self-designed time attention score instead of using time annotation with high annotation cost. In addition, more accurate answers are obtained by mining the relation between the subtitles and the corresponding video content.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +3

Text information sentiment analysis method and device, medium and electronic equipment

PendingCN110825849ACorrect answerOvercomes inefficiency in determining sentiment polarityNeural architecturesText database queryingFeature vectorContent determination
The invention provides a text information emotion analysis method, a text information emotion analysis device, a computer readable storage medium and electronic equipment, and relates to the technicalfield of computers. The text information sentiment analysis method comprises the steps of determining a word vector sequence of text information according to a corpus; performing text representationprocessing on the word vector sequence in the positive sequence and the word vector sequence in the reverse sequence to obtain a plurality of first feature vectors; determining a plurality of target feature vectors corresponding to the plurality of first feature vectors according to a nonlinear mapping relationship; determining word emotion polarity corresponding to each target feature vector according to comparison between the plurality of target feature vectors and a preset emotion threshold; and determining the sentiment polarity of the text information according to the word sentiment polarity. According to the text information sentiment analysis method, the problem that the efficiency of determining the sentiment polarity is low can be solved to a certain extent, and then the efficiency of determining the sentiment polarity according to the session content is improved.
Owner:TAIKANG LIFE INSURANCE CO LTD +1

Intelligent question and answer reasoning method and system based on natural language entity relationship

The invention discloses an intelligent question and answer reasoning method and system based on a natural language entity relationship, and belongs to the field of natural language processing. The method the following steps: performing word segmentation and entity word extraction on each statement in a corpus; taking natural statements as edges of entity association to form entity relationships, and summarizing entity connection relationships in the corpus to form a semantic network database based on the natural language entity relationships; designing an intelligent reasoning deep learning model based on a BERT pre-training language model and a graph neural network; inputting an entity connection diagram related to questions submitted by a user into a network for reasoning, and screening the results through a multi-layer perceptron to give a final answer. Herein, the entity relation database is automatically constructed through any given natural language text corpus, entity extraction and labeling through a manual intervention means are avoided, and answers are automatically found and inferred by analyzing complex questions of the user, so that the user is helped to obtain required results more quickly and more accurately.
Owner:HUAZHONG UNIV OF SCI & TECH

Machine reading understanding model based on knowledge graph gain

The invention provides a machine reading understanding model based on knowledge graph gains, which is used for receiving a text data set including text documents and questions and a vocabulary automatically generated according to the text data set and obtaining answers to the questions according to the content of the text documents. The machine reading understanding model comprises a document question arrangement module, a named entity recognition module used for performing named entity recognition processing on the text data set; an ERNIE context language module; an external knowledge base which comprises a WordNet knowledge base and a ConceptNet knowledge base and is used for receiving the vocabulary and correspondingly generating a WordNet knowledge feature vector and a ConceptNet knowledge feature vector; a knowledge matching and connecting layer which is used for connecting corresponding word vectors with WordNet knowledge feature vectors and ConceptNet knowledge feature vectors for entities which are successfully matched in text documents and questions; an attention calculation unit which is used for performing bidirectional attention operation and self-attention operation on the vectors correspondingly to obtain answers; and a result generation unit which is used for receiving and judging the output answer.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

A method for multimodal video question answering using frame-subtitle self-supervision

The invention belongs to the field of video question and answer, and in particular relates to a method for multi-modal video question and answer using frame-subtitle self-supervision. It includes the following steps: extracting video frame features, question and answer features, subtitle features, and subtitle suggestion features; obtaining frame features with attention and subtitle features with attention, and obtaining fusion features; calculating temporal attention scores based on fusion features; using temporal attention The time boundary of the question is calculated by the score calculation; the answer to the question is calculated by using the fusion feature and time attention score; the neural network is trained by using the time boundary of the question and the question answer; the network parameters of the neural network are optimized, and the optimal neural network is used for video question and answer and planning set time boundaries. Instead of using expensive time annotations, the present invention generates problem-related time boundaries based on self-designed time attention scores. In addition, the present invention obtains a more accurate answer by mining the relationship between the subtitle and the corresponding video content.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER +3
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