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101 results about "Question analysis" patented technology

FAQ Chinese request-answering system implementing method in tourism field

The invention provides an implement method of an FAQ Chinese question answering system in the tourism field. The implement method comprises the steps of FAQ collection and organization, construction of a tourism field knowledge base, user query, question analysis, answer extraction and the like, thereby realizing the FAQ Chinese question answering system in the tourism field. The implement method constructs the tourism field knowledge base-field knowledge network with the help of the idea of ontology, utilizes the KDML language to define and describe the terms and the relations of the tourism field and realizes the integration of the tourism field knowledge network and a general knowledge base-knowledge network. The invention proposes a calculation method of similarity of tourism questions on the basis, the method realizes the calculation of the similarity of the questions with the help of the characteristics of the questions of the tourism field and the combination of morphological relations, the syntactic dependency relations and the field concept semantic relations in the questions, and the method further searches the related question from a candidate question set and extracts the answer of the question based on the similarity calculation. The test result of a Yunnan tourism FAQ question answering system proves that the method is feasible and has better effect.
Owner:KUNMING UNIV OF SCI & TECH

Intelligent questioning and answering method and system

The invention provides an intelligent questioning and answering method and system. The intelligent questioning and answering system (100) comprises a dialogue engine (101), an analysis module (102), acandidate questioning and answering library (103), a retrieval module (104), a matching module (105) and a reordering module (106), wherein the dialogue engine (101) is used for receiving a questionraised by a user; the analysis module (102) is used for analyzing a user's question; the retrieval module (104) is used for retrieving a questioning and answering pair related to the user's question in the candidate questioning and answering library (103) based on the result of the question analysis of the analysis module (102); the matching module (105) is used for calculating the matching degreevalue between the candidate questioning and answering pair retrieved by the retrieval module (104) and the user's question; and the reordering module (106) is used for comprehensively considering theresulTS obtained by the problem analysis, retrieval and matching, and reorder the candidate questioning and answering pairs according to the service requiremenTS. The dialog engine (101) is further configured to select a reply to the user from the candidate questioning and answering pairs reordered by the reordering module (106).
Owner:爱因互动科技发展(北京)有限公司

Method and equipment for constructing intelligent question-answering system through question generation data set

The invention discloses a method and equipment for constructing an intelligent question-answering system through a question generation data set. The method comprises the following steps: constructinga tourism domain knowledge graph; performing question analysis on natural language questions proposed by a user, performing word segmentation and word vector training on the questions, and in a word segmentation process, using a jaeba tool and adding a tourism domain dictionary set in advance; performing entity extraction on the natural language questions by using a Bert-BiLSTM+CRF model; matchingthe extracted entities with entities in a knowledge graph; if a matched entity exists in the knowledge graph, selecting the entity; if no matched entity exists in the knowledge graph, performing semantic similarity calculation, and selecting the closest entity; matching the selected entities and attributes with triples in a knowledge graph; and returning the corresponding attribute value as an answer to the question to be provided for the user. The invention also provides a device for realizing the method, a terminal and a readable storage medium. According to the invention, the information required by the user can be returned conveniently and accurately.
Owner:SHAANXI NORMAL UNIV

Method and apparatus for analyzing question based on knowledge base

Embodiments of the invention provide a method for analyzing a question based on a knowledge base. The method comprises following steps: receiving a question input by a user; detecting phrases of the question and determining candidate phases; mapping the candidate phases in a resource item in the knowledge base; further determining the values of observation predicates and the possible question analysis space; performing uncertainty reasoning and calculating the confidence coefficient of each proposition set in the possible question analysis space according to the values of the observation predicates and values of implicit predicates; acquiring a set of true propositions in the proposition sets whose confidence coefficients meet preset conditions; and generating a formalized query statement according to the set of the true propositions. According to the embodiments, by means of the observation predicate and the implicit predicate, the uncertainty reasoning is performed, and a natural language question can be converted into a formalized query statement. Furthermore, the uncertainty reasoning method can be applied to the knowledge base of any field, the method can be widely applied to multiple fields, and conversion rules are not required to be manually configured for the knowledge bases.
Owner:HUAWEI TECH CO LTD +1

A construction method of a literature compilation life history question and answer system based on a knowledge graph

ActiveCN109766417AImprove the efficiency of acquiring specific knowledgeAccurate analysisNeural architecturesSpecial data processing applicationsQuestion analysisTight frame
The invention discloses a construction method of a literature history question and answer system based on a knowledge graph, which comprises the following steps of constructing the knowledge graph ofa literature history vertical field by taking structural data related to Chinese literature history as a basis and combining a literature history ontology structure created from top to bottom; designing a semantic analysis framework which comprises two user question analysis modules characterized in that one module is based on regularization and rules, and the other module is based on a neural network; organizing the results obtained through problem analysis into corresponding SPARQL query statements, and searching the corresponding results for in the constructed knowledge graph; organizing the result as a reply, and returning the reply to the user; designing a webpage side and a WeChat official account service as a window for interaction between the system and a user; designing a user uses a log and feedback collection module, wherein the related data is used for iteratively training a neural network model, and the generalization capability of the model is enhanced. According to the present invention, the natural language query of a user can be directly processed, an accurate result is returned, and the method plays an important role in improving the knowledge acquisition efficiency, promoting Chinese culture research and the like.
Owner:ZHEJIANG UNIV

Cardiovascular and cerebrovascular knowledge map questioning and answering method based on electronic medical records

The invention discloses a cardiovascular and cerebrovascular knowledge map questioning and answering method based on electronic medical records. The method comprises the following three parts: 1, constructing a crawler to extract encyclopedia and cardiovascular and cerebrovascular medical knowledge, fusing medical record data to construct a cardiovascular and cerebrovascular domain dictionary andcarrying out electronic medical record desensitization treatment; 2, constructing a knowledge graph based on an electronic medical record, namely realizing entity relationship extraction by using a language model, a bidirectional long-short-term memory network, a conditional random field and a convolutional neural network, screening entity relationships by using word2vec, and storing the entity relationships in Neo4j; and 3, constructing a question-answering method based on a traditional rule, constructing an ACTree and a question template by using the medical feature word set and the domain dictionary to perform question analysis and intention recognition, generating a Cypher query statement, and returning an answer. Based on the electronic medical record and the online knowledge base, cardiovascular and cerebrovascular knowledge graph construction and knowledge graph-based user complaint questioning and answering are realized.
Owner:HANGZHOU DIANZI UNIV

Examination question duplicate checking and judging method and device

The invention relates to an examination question duplicate checking and judging method and device. The method comprises the following steps: acquiring the information of examination questions; matching the acquired information of the examination questions with the examination questions in a question bank; if the matching degree of the examination questions is lower than minimum repetition rate of the examination questions, submitting the examination questions to on-line manual answering process for treatment to acquire to-be-pushed examination question analysis; if the matching degree of the examination questions is greater than or equal to minimum repetition rate of the examination questions, confirming whether to submit the examination questions to manual duplicate judging process for treatment or not; if the examination questions are submitted to the manual duplicate judging process, pushing the corresponding examination question analysis in the question bank when the duplicate judging result is repetitive; submitting the examination questions to the on-line manual answering process for treatment to acquire to-be-pushed examination question analysis when the duplicate judging result is not repetitive; otherwise, pushing the corresponding examination question analysis in the question bank. Through the combination of two manners of an image recognition technology and manual duplicate judging, the problem that teachers answer repetitive examination questions and repetitive examination questions are accumulated in the question bank due to immaturity of current image recognition technologies is solved; burden of manual answering questions is reduced; the method and device can be applied to educational electronic products of learning machines, and the like.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD

Mathematical subject step-by-step demonstration method and computer system suitable for self-adaptive learning

The invention relates to a mathematical subject step-by-step demonstration method suitable and a and computer system suitable for self-adaptive learning, which comprises the following steps of: carrying out knowledge point matching processing conducting knowledge points matching and processing according to the received user's learning level information and pushing corresponding learning questions;monitoring whether or not receive the feedback information in real time and processing according to different feedback information, specifically: when receiving a first feedback information, carryingout an answer matching processing and generating and displaying a question analysis; when receiving a second feedback information, generating and displaying prompt information; when receiving a thirdfeedback information,displaying a problem solving step of the learning problem, and each time of receiving the third feedback, displaying only one solution step in sequence until all the solution steps are displayed; and when receiving a fourth feedback information, generating and displaying a reference answer information. Compared with the prior art, the invention has the advantages of effectively improving the learning efficiency of the user and the like.
Owner:SHANGHAI SQUIRREL CLASSROOM ARTIFICIAL INTELLIGENCE TECH CO LTD
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