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225 results about "Syntactic structure" patented technology

Syntactic Structures is a major work in linguistics by American linguist Noam Chomsky. It was first published in 1957. It introduced the idea of transformational generative grammar.This approach to syntax (the study of sentence structures) was fully formal (based on symbols and rules). At its base, this method uses phrase structure rules. These rules break down sentences into smaller parts ...

Apparatus and methods for developing conversational applications

Apparatus with accompanying subsystems and methods for developing conversational computer applications. As a user interface, the apparatus allows for a user to initiate the conversation. The apparatus also answers simple and complex questions, understands complex requests, pursues the user for further information when the request is incomplete, and in general provides customer support with a human like conversation while, at the same time, it is capable to interact with a company's proprietary database. As a development tool, the apparatus allows a software developer to implement a conversational system much faster than takes, with current commercial systems to implement basic dialog flows. The apparatus contains three major subsystems: a state transition inference engine, a heuristic answer engine and a parser generator with semantic augmentations. A main process broker controls the flow and the interaction between the different subsystems. The state transition inference engine handles requests that require processing a transaction or retrieving exact information. The heuristic answer engine answers questions that do not require exact answers but enough information to fulfill the user's request. The parser generator processes the user's natural language request, that is, it processes the syntactical structure of the natural language requests and it builds a conceptual structure of the request. After the parser generator processes the user's request, a main process broker feeds the conceptual structure to either the heuristic answer engine or to the state transition inference engine. The interaction between the main process broker and the subsystems creates a conversational environment between the user and the apparatus, while the apparatus uses information from proprietary databases to provide information, or process information, during the course of the conversation. The apparatus is equipped with a programming interface that allows implementers to declare and specify transactions based requests and answers to a multiplicity of questions. The apparatus may be used with a speech recognition interface, in which case, the apparatus improves the recognition results through the context implicitly created by the apparatus.
Owner:GYRUS LOGIC INC

Enquiry statement analytical method and system for information retrieval

The invention discloses a query sentence analyzing method based on understanding of natural languages and a system thereof, and belongs to the technical field of information retrieval. The query sentence analyzing method comprises the following steps: (1) automatic segmenting, named entity identification and part-of-speech tagging of an input Chinese query sentence are implemented; (2) syntax structure of the segmented sentence is analyzed so as to obtain a syntax structural tree, and meaning of each word is determined according to the sentence after the part-of-speech tagging; (3) according to the syntax structure and the meaning of each word, semantic roles of predicates in the sentence are tagged; and (4) according to the analyzed result of the sentence from the levels of syntactics, syntax and semantics, keywords are expanded and the keywords that can reflect user information retrieval requirements are extracted. The query sentence analyzing system of the invention comprises a syntactic analyzing module, a syntax analyzing module, a semantic analyzing module and a keyword extracting module. The query sentence analyzing method and system can greatly improve the accuracy of query results and provide desired query results for users.
Owner:PEKING UNIV

Automatic recognition method pf mathematical formula in image

The invention relates to an automatic recognition method of a mathematical formula in an image, which comprises the steps that: a syntactic structure model of the mathematical formula is built, and a bottom knowledge base of the mathematical formula is built; the location of the mathematical formula in the image, the recognition of a mathematical symbol, the analysis and comprehension of a mathematical formula structure and the expression and formatted output of the mathematical formula structure are carried out. The automatic recognition method designs a complete set of method and model for solving the recognition and comprehension difficulties of an off-line mathematical formula image and forms a method for automatically processing the mathematical formula image in the whole process. The method can realize the automatic judgment and extraction of an individual-line / embedded mathematical formula in an image, thereby meeting the application requirements of the automatic inputting of the mathematical formula image and the comprehension and format recurrence of the mathematical formula structure. The method can be combined with the existing normal text OCR system to form a document image processing system with more complete functions and also can support the research on expression processing methods in other fields, such as automatic processing aiming at chemical equations, etc.
Owner:NANKAI UNIV

Dependency semantic-based Chinese unsupervised open entity relationship extraction method

The invention relates to a dependency semantic-based Chinese unsupervised open entity relationship extraction method. The method comprises the following steps of preprocessing an input text: performing Chinese word segmentation, part-of-speech tagging and dependency grammar analysis on the input text; performing named entity identification on the input text; arbitrarily selecting two entities from identified entities to form candidate entity pairs; searching for a dependency path between two entities in the candidate entity pairs; and analyzing whether a syntactic structure mapped by the dependency path is matched with a normal form of a dependency semantic normal form set or not, if yes, extracting words or phrases from the residual part of the input text according to the matched normal form to serve as relational words, forming a relational triple by the extracted relational words and the candidate entity pairs, and if not, performing normal form matching of a next group of the candidate entity pairs; and outputting the relational triple. Compared with the prior art, the method has the advantages that the calculation complexity is low; the extraction efficiency is high; distance position limitation is overcome; a simple sentence also can be extracted and the like.
Owner:TONGJI UNIV

Field question classification method combining syntax structural relationship and field characteristic

The invention relates to a method for classifying field questions by integrating with syntax structure relationship and field characteristics, which comprises the following steps: field terms are collected; a special field question classification system is defined; the syntax structures of the questions are analyzed; a sentence trunk is extracted; the sentence truck and the field vocabulary are taken as question classification characteristics; a question classification model is built through an improved Bayesian classification algorithm method; a special field question classification training corpus and a test corpus are set up; a special field question classifier is set up. Because question classification is a very important step in an answering system and a key factor for establishing answer extraction strategies and positioning answers, the method of the invention can select the sentence trunk and the field vocabulary as the classification characteristics based on the syntax structure analysis by integrating with the field characteristics, adopts the improved Bayesian classification algorithm method, builds the question classification model and takes the question classification test in the field of Yunnan tourism; the result shows the method is effective, and improves the field question classification accuracy, thereby offering consultancy service to the users with high efficiency, quickly and accurately.
Owner:KUNMING UNIV OF SCI & TECH

Hybrid automatic translation apparatus and method employing combination of rule-based method and translation pattern method, and computer-readable medium thereof

InactiveUS20050060160A1High-quality translationAmbiguity of minimizedNatural language translationSpeech analysisPart of speechStructure analysis
Disclosed are a hybrid automatic translation method and apparatus employing a combination of a rule-based method and a translation pattern method, and a computer readable medium thereof, which is capable of solving an ambiguity problem of the conventional rule-based method and a pattern generation and coverage problem of the translation pattern method. The hybrid automatic translation apparatus includes: a morpheme analyzing block for analyzing a morpheme of an inputted source sentence and determining parts of speech; a syntactic structure analyzing block for parsing the tagging result to output a parsing tree; a construction pattern generating block for extracting only a chunking result of phrases belonging to sub-category from the parsing tree to generate a construction pattern; a construction pattern translating block for translating the construction pattern by using a translation pattern; a clause structure analyzing block for analyzing a clause unit structure of the if the translation pattern matching of the construction pattern fails; and a partial pattern translating block for performing a pattern translation of partial construction pattern according to the result of the clause structure analysis to output a final translation result.
Owner:ELECTRONICS & TELECOMM RES INST

A medical entity relationship extraction method based on feature fusion

The invention discloses a medical entity relationship extraction method based on feature fusion, and the method comprises the steps: enabling entities in a knowledge base to be aligned to medical corpora through a remote supervision and rule combination method, and constructing an entity pair sentence set; performing word-level vector coding on the sentences based on a convolutional neural networkmodel to obtain overall feature vector representation of the sentences; extracting features in left and right subtree directions on the shortest dependency path of the sentences by using a recurrentneural network respectively, and performing splicing operation; and fusing the sentence overall features and the dependency syntax features which are extracted from the two parts respectively, and performing final relation extraction on the obtained fusion features. According to the method, on the premise that a dependency syntax structure is utilized; entity type characteristics capable of expressing entity relationship types among entities are introduced; the position features and the overall features of the sentences are integrated with the dependency syntactic features, the semantic relationship between the sentences is better learned, the interference of noise data on medical entity relationship extraction is reduced, and the accuracy of medical entity relationship extraction can be improved to a certain extent.
Owner:BEIJING UNIV OF TECH

Method for acquiring and converting the state of component in the time of operation during software dynamic evolvement

The invention discloses a component running status acquiring and conversion method of software dynamic evolvement, belonging to the software maintenance technical field, including following procedures that: the realization source codes, the component protocols and the internal operation logics of the new and the old versions of the component are analyzed, the internal structure logic representation models of the component are built respectively; compared with the two logic representation models, the corresponding member variables and syntactic structures are identified, the detailed description of the relativity between the new and the old versions of the component is returned, the component status information which needs to be acquired and converted to the new version is defined; the logic representation model of the new version of the component is modified, the interface method is increased in order to export and store the running status information of the old version; in addition, the interface method is increased in order to import and convert the status information; based on the modified logic representation model of the new version of the component, the source codes of the new version of the component are regenerated. The method of the invention can effectively acquire and convert component running status information and realize the status conversion function of the dynamic evolvement support system.
Owner:SHANGHAI JIAO TONG UNIV

Semantic matching method and device for question and answer text, medium and electronic equipment

The invention provides a semantic matching method for question and answer texts. The method can effectively solve problems in related technologies. For example, in the question and answer text semantic matching technology based on a deep learning model in the related technology, only context local semantic feature information can be provided, background global feature information and syntactic feature information of a question and answer text are lacked, feature unification is caused, and semantic matching information of the question and answer text cannot be completely embodied. The inventionprovides a question and answer text semantic matching method based on multi-level features and deep learning, word and syntactic structure distributed representation is carried out on words and syntactic information of the question and answer text; and the context local feature information and the syntactic structure feature information of the question and answer text are extracted by using the recurrent neural network, and then the background global feature information is extracted by using an attention mechanism, so that the feature information of the question and answer text is richer, andthe semantic matching accuracy of the question and answer text is improved.
Owner:TAIKANG LIFE INSURANCE CO LTD +1
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