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258 results about "Machine reading" patented technology

Machine reading model training method and device, question and answer method and device

The invention discloses a machine reading model training method and device, a question and answer method and a device, and belongs to the field of natural language processing. The machine reading model training method comprises the following steps: acquiring a training sample, wherein the training sample comprises a sample question and a corresponding sample article, a real initial position and areal final position of the corresponding answer in the sample article; extracting a question feature vector of the sample question and an article feature vector of the sample article, and using a neural network structure to fuse and process the question feature vector and the article feature vector to form a fusion result; inputting the fusion result into a classifier to perform prediction of theinitial position and the final position of the answer; performing error calculation on the predicted initial position and final position, and the real initial position and the real final position of the answer; and optimizing the neural network structure according to the error calculation result. According to the machine reading model training method and device, the question and answer method anddevice in the embodiment of the invention, the corresponding answer can be directly extracted from the entire associated article through end-to-end deep learning.
Owner:ZHONGAN INFORMATION TECH SERVICES CO LTD

Multi-granularity answer sorting multi-document machine reading understanding method

The invention discloses a multi-granularity answer sorting multi-document machine reading understanding method, and belongs to the technical field of machine reading understanding application. The method is based on a pre-trained deep learning model. Splitting the document into text fragments through a sliding window, and splicing the text fragments with questions; a plurality of candidate answersgenerated by a plurality of documents are sorted by fusing multi-granularity answer sorting of statistical information, shallow semantic information, deep semantic information and answer ending wordinformation, and the semantic information of different granularities is fully utilized to capture the correlation between a question and the plurality of candidate answers. According to the method, the text representation capability and the generalization capability of a traditional machine reading understanding model are improved by utilizing a pre-trained deep learning model; Meanwhile, the defect that the input length of an existing model for a multi-document scene is limited is overcome, Meanwhile, the answer quality of multi-document machine reading understanding is improved by modeling the correlation between questions and answers from different granularities.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Charging processing method and system for internet sales

InactiveCN103824209AFast paymentSolve the problem of inconvenient inputPayment architectureBilling/invoicingLibrary scienceWeb page
The invention discloses a charging processing method and system for internet sales. The method comprises the following steps: establishing a network commodity promotion service website and recording a corresponding relation between a commodity sales webpage and promoter information, seller information, commodity information, and profit allocation mode information; distributing a global unique identity ID for the corresponding relation and generating a two-dimensional code that can be read and identified by a machine or other commodity promotion carrier; receiving a purchase request that is sent out by a purchaser from a webpage of the promotion service website or receiving a purchase request that is sent by a purchaser after machine reading and identifying of the global unique identity ID of the corresponding relation, and generating an order; obtaining the promoter information, the seller information, the commodity information, and the profit allocation mode information from the promotion service website; and according to the obtained promoter information, seller information, commodity information, and order information, realizing expense collection and automatically realizing profit allocation charging between the promoter and the seller based on the profit allocation mode information.
Owner:SHENZHEN MPR TECH CO LTD

Machine reading comprehension answer obtaining method based on multi-round attention mechanism

The invention discloses a machine reading comprehension answer obtaining method based on a multi-round attention mechanism. The method comprises steps of performing word segmentation processing and vectorization processing on the questions and the texts corresponding to the questions respectively to obtain feature vectors, selecting a bidirectional long-short time memory network to encode contextsemantic information of the feature vectors, and performing modeling between the questions and the texts by using an attention mechanism to effectively capture information interaction between the questions and the texts. Attention of an article about a question is calculated through multiple rounds, context semantic information is fused, then BLSTM is used for coding the context semantic information, the above processes are repeated for multiple times, so that an nth text semantic vector is obtained, and a Self-Attention mechanism is used for obtaining a vector representation of the question;by calculating the similarity between the semantic vectors of the questions and the similarity of the semantic vectors, namely one representation of each word in the article in the question space, theaccuracy of predicting answers can be effectively improved, BLSTM and Attention are effectively combined, and the matching accuracy of the questions and the answers returned by text extraction can beimproved.
Owner:XI AN JIAOTONG UNIV

Machine reading understanding method and device, equipment and storage medium

The invention discloses a machine reading understanding method, equipment, a storage medium and a device. The method comprises the steps of obtaining a to-be-understood paragraph and a plurality of corresponding target problems; and carrying out multi-thread processing on the to-be-understood paragraph and the plurality of corresponding target questions, obtaining interaction information semanticsbetween the paragraph to be understood and each target problem through an embedded layer, a coding layer and an interaction layer of the understanding model of a preset machine in sequence; based onartificial intelligence, enabling the interaction information semantics to pass through a screening layer of the preset machine reading understanding model; obtaining a valuable sentence vector whichis highly associated with each target question; and enbabling the valuable sentence vector to passes through an answer layer of the preset machine reading understanding model to obtain a predicted answer range of each target question, and performing answer prediction through the preset machine reading understanding model. The accuracy and efficiency of answer prediction are improved, the predictedanswer range is sent to a target terminal, and the user experience is improved.
Owner:PING AN TECH (SHENZHEN) CO LTD

Intelligent conversation method, device and terminal based on machine reading comprehension

The invention provides an intelligent dialogue method, a device and a terminal based on machine reading comprehension. The method comprises the following steps: obtaining a text corresponding to a question put forward by a user; word segmentation and vectorization being performed on the problem and the text to obtain the problem vector and the text vector; inputting a problem vector and a text vector into the attention model to obtain a first vector and a second vector, wherein the first vector is used for indicating the degree of influence of the problem on noticing any word in the text, andthe second vector is used for indicating the degree of influence of the text on generating the problem; an answer start point and an answer end point being determined in the text according to the first vector and the second vector, and a paragraph between the answer start point and the answer end point being determined as the answer of the question. The method of the invention does not need to preset a 'question-answer' pair in advance, can flexibly answer various questions of a user, overcomes the defect that the prior art needs to continuously maintain the question database, and reduces thedata update cost.
Owner:ONE CONNECT SMART TECH CO LTD SHENZHEN

Question answer acquisition method and system based on machine reading understanding

The embodiment of the invention provides a question answer acquisition method and system based on machine reading understanding. The method comprises the following steps: inputting a question and a corresponding document set into a trained neural network model, and obtaining an output result of the trained neural network model; determining an answer corresponding to the question from the documentset according to the output result; wherein the trained neural network model is obtained through training according to a training set, and the training set comprises a plurality of sample problems anda sample document set and a sample label set corresponding to each sample problem. According to the method and the system provided by the embodiment of the invention, the question and the corresponding document set are input into the trained neural network model, and the answer corresponding to the question is determined from the document set according to the output result of the trained neural network model. The method has the advantages that the shortage of a machine reading understanding model of the description type problem is filled, the characteristics of multiple documents are effectively utilized, more document information is reserved, and the answer of the description type problem can be extracted more accurately.
Owner:BEIJING UNIV OF POSTS & TELECOMM +1

Topic-considered machine reading understanding model generation method and system

The invention discloses a topic-considered machine reading understanding model generation method and system. According to the present invention, the potential topic information in the training sampledata is extracted, and the topic information is utilized to supervise the training of a reading understanding model, so that the effect of the reading understanding model is improved. According to themodel disclosed by the invention, a plurality of topics corresponding to the training samples are extracted before model training, and the topic information of the samples is utilized to improve theeffect of the machine reading understanding work. The basic process of the method comprises the following steps of processing each training sample, and finding out a vector representation capable of representing the sample; clustering the samples, and solving a mean value of the similar sample vectors as the vector representation of the topic; during matching and outputting, using an attention mechanism for representing the higher weight of the words with higher similarity with the topic vector of the sample for the vector. In addition, the training data can obtain a better effect after beingsubjected to better data cleaning, and better topic vector representation can be obtained after noise is reduced.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Machine reading comprehension method based on multi-task joint training, and computer storage medium

The invention discloses a machine reading comprehension method based on multi-task joint training, and a computer storage medium. The machine reading comprehension method comprises a model construction and training stage and a test stage, wherein the model construction and training stage comprises the following steps: 1, constructing a training set; 2, establishing a machine reading comprehensionmodel which comprises a coding layer, an attention matching layer and a decoding layer; 3, dividing the training set into W sub-sample sets according to the number of samples, and training the machinereading comprehension model by using the W sub-sample sets to obtain W machine reading comprehension models; and the testing stage comprises the steps: cutting off a to-be-tested article, inputting the processed article and questions into the trained W machine reading comprehension models, obtaining W predicted answer starting positions, W predicted answer ending positions and W corresponding distribution probabilities, and calculating the average value to serve as the starting position, the ending position and the corresponding distribution probabilities of a final answer. The machine reading comprehension method can solve the problems that an existing machine reading comprehension method is low in Chinese text accuracy and the like.
Owner:THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP

Syntactic relationship enhanced machine reading understanding multi-hop reasoning model and method

The invention relates to the fields of deep learning, natural language processing and the like, and particularly relates to a syntactic relationship enhanced machine reading understanding multi-hop reasoning model and method. The model comprises a text coding module, an association element relationship graph construction module, a multi-hop reasoning module, an answer generation module and an answer prediction module. According to the invention, syntactic relationships are fused into the graph construction process, an associated element relationship graph is constructed, multi-hop reasoning iscarried out by utilizing a graph attention network based on the relationship graph, and answer support sentences are mined; meanwhile, a multi-head self-attention mechanism is introduced to further mine text clues of viewpoint type questions in the article, and an automatic solution method of the viewpoint type questions is improved; and finally, a plurality of tasks are subjected to joint optimization learning, so that when the model answers the questions, fact description for supporting the answers can be given, the interpretability of the model is improved, and meanwhile, the existing answering method for viewpoint type questions is improved.
Owner:SHANXI UNIV

A machine reading comprehension method based on threshold convolution neural network

The invention provides a machine reading comprehension method based on a threshold convolution neural network. The method comprises the following steps: constructing a threshold convolution neural network model, comprising an input layer, a threshold convolution layer and an answer layer; The input layer is used for encoding the target article, and the encoded article vector sequence, the questionvector sequence and the answer vector sequence are transmitted to the threshold convolution layer. The threshold convolution layer generates text, question and answer expressions with high-level semantic information through interactive mode, and transmits these expressions to the answer layer. Finally, the answer layer makes reasoning decision and makes prediction. Determine the target article, import the threshold convolution neural network model for machine reading comprehension, and derive the prediction results. The machine reading comprehension method based on the threshold convolution neural network provided by the invention effectively simplifies the neural network model, greatly reduces the training and testing time, improves the processing efficiency, and improves the sense of user experience. Keep the long-term dependency of the text and accurately predict the answer information.
Owner:SUN YAT SEN UNIV

Multi-task chapter-level event extraction method based on multi-headed self-attention mechanism

The invention provides a multi-task chapter-level event extraction method based on a multi-headed self-attention mechanism. The method comprises the following steps: converting single sentence-level event extraction into chapter-level event extraction of a packaged sentence set; carrying out the word embedding representation by utilizing a pre-trained language model BERT; taking all word embedding and position embedding in a single sentence as input, employing a convolutional neural network model for coding, and capturing the most valuable features in the sentence in combination with a segmented maximum pool strategy; utilizing a multi-head self-attention model to obtain chapter representation and attention weight fused with full-text semantic information; utilizing a classifier to obtain a predicted event type; taking event types as prior information, linking the event types to an input sequence for event element extraction, and extracting all related elements in the sequence by using a pre-training model in combination with a machine reading understanding method. The method can be used for text-level event extraction tasks, and the breakthrough of converting a sequence labeling problem into a machine reading understanding problem is achieved.
Owner:HARBIN INST OF TECH AT WEIHAI +1

Two-dimensional product for hand-drawing pattern or word and the application component thereof

PendingCN106599961AMake up for a single defectEnhancing Decoding DifficultyRecord carriers used with machinesTrademarkOnline and offline
The invention provides a two-dimensional product which can realize the storage of information data for a hand-drawing or a reference pattern and a word structure and the two-dimensional product comprises a hand-drawing product, a code generator, a decoder and a system component. The hand-drawing code technology of the invention enables information to be precisely stored in a hand-drawing or specified pattern structure and a word profile without compromising the overall characteristics and the original expressions of the original pattern or word by keeping the characteristics of the original pattern in culture and art. Therefore, it is possible to add in-depth information storage and analysis technology on the basis of meaning expressions of the pattern and word so that a user could play an important role in the design of the code sample; the generation and production of the code becomes more people oriented; and the application scope of the pattern code product is enriched with personal signature, company trademark and other word pattern. The code of the invention can be directly accessed and analyzed both online and offline. All of the patterns and words that the pattern code technology assigns are provided with the dual information attribute featuring people reading and machine reading so that the pattern information that the people read is consistent with what the machine reads on the same carrier.
Owner:JIANGSU FIGURE CODE INFORMATION TECH LTD

Machine reading understanding method, system and device based on external knowledge enhancement

The invention belongs to the technical field of natural language processing, particularly relates to a machine reading understanding method, system and device based on external knowledge enhancement,and aims to solve the problem that the existing machine reading understanding method does not utilize graph structure information among triples, so that the answer prediction accuracy is relatively low. The method of the system comprises the following steps: generating context representations of entities in a question and an original text; based on an external knowledge base, obtaining a triple set of each entity in the question and original text and a triple set of adjacent entities of each entity in the original text; based on the triple set, obtaining knowledge sub-graphs of each entity through an external knowledge graph; updating the fused knowledge sub-graph through a graph attention network to obtain knowledge representation; and splicing the context representation and the knowledgerepresentation through a sentry mechanism, and obtaining answers to the to-be-answered questions through a multilayer perceptron and a softmax classifier. According to the method, the graph structureinformation among the triples is utilized, so that the answer prediction accuracy is improved.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Reading understanding method and system based on collaborative attention and self-adaptive adjustment

The invention discloses a reading understanding method and system based on collaborative attention and self-adaptive adjustment, which belong to the technical field of machine reading understanding. The method is characterized by comprising the following steps: S1, inputting a document word vector and a problem word vector, and training the document word vector and the problem word vector, the word vector comprising two granularities of character-level embedding and word embedding; s2, calculating a similarity weight of the problem and the document by using cosine similarity, and performing adaptive adjustment on document word embedding according to the similarity weight; s3, encoding the document word vector and the problem word vector through a multi-layer bidirectional gating loop unit;s4, using a collaborative attention mechanism for the document and the question, and obtaining a document vector representation query-aware with question perception and a question vector representation para-aware with document perception; s5, learning an internal dependency relationship between the document and the question by using a self-attention mechanism, and obtaining a new semantic vectorrepresentation; s6, using the attention as a pointer, predicting the starting position and the ending position of the answer, and extracting an answer sequence according to the answer span.
Owner:CIVIL AVIATION UNIV OF CHINA
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