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75 results about "Sentence recognition" patented technology

Sentence Recognition is a natural language processing API for matching strings of text based on their meaning. Use of the API is free, but requires registration for full access. Details for use of the API can be found at SentenceRecognition.com.

Fine-grained semantic detection method of harmful text contents in network

InactiveCN102609407AFulfilling Semantic Recognition RequirementsSmall uncertaintySpecial data processing applicationsData miningMachine learning
The invention belongs to the technical field of text content filtration, and particularly relates to a fine-grained semantic detection method of harmful text contents in network. Aiming at an introduced harmful information scene, the method comprises the steps of: constructing a train text set in which independent sentences are used as basic units, thereby establishing a mathematic description of the scene by using a probability topic model; performing information content extraction to a Web page to be detected; performing sentence identification to the text information; calculating a condition probability of each sentence under the model based on the established probability topic model; and accomplishing the fine-grained semantic detection under the set content detection sensitivity. According to the invention, the model construction is hardly affected by the number of the topics, and probability calculation on the sentence and word level is carried out effectively, so that the method is applicable for various application circumstances requiring harmful text content detection; furthermore fine-grained detection to harmful words and sentences of the text content is supported, so that the method improves the detection rate and reduces the misinformation rate effectively, and is beneficial to improving the practicability of text content filtration.
Owner:FUDAN UNIV

Case microblog viewpoint sentence recognition construction method of feature extension convolutional neural network

ActiveCN111008274ASolve the problem of domain knowledge expansionImprove accuracyWeb data indexingNatural language data processingTest setNeural network nn
The invention relates to a case microblog viewpoint sentence recognition construction method of a feature extension convolutional neural network, and belongs to the field of natural language processing. The method comprises the following steps: constructing a case microblog database; annotating comments in the case microblog database to form the training set and the test set of the case microblogcomments; carrying out keyword extraction on a plurality of microblog original texts of the case; taking keywords extracted from the case original text as feature extension and training set case microblog comments, vectorizing the feature extension and training set case microblog comments, and splicing the feature extension and training set case microblog comments to obtain a new vector; splicingthe keywords as feature extension and case microblog comments after vectorization to obtain a new vector as input to train a convolutional neural network, and inputting the test set into the trained convolutional neural network to identify and classify viewpoint sentences. According to the method, the keywords are obtained from the case microblog original text to serve as feature extension, the needed viewpoint sentences are recognized from the obtained public opinion data, and support is provided for subsequent sentiment tendency analysis on the viewpoint sentences.
Owner:KUNMING UNIV OF SCI & TECH

Medical ancient Chinese sentence segmentation method based on Bayesian statistics learning

The invention belongs to the field of language processing and discloses a medical ancient Chinese sentence segmentation method based on Bayesian statistics learning. According to the medical ancient Chinese sentence segmentation method based on Bayesian statistics learning, two tuples and trituples are also added for characteristic attributes or one-tuple, two-tuple and trituple diversified characteristic attributes are combined to obtain multiple groups of experiment data results based on a naive Bayesian method for sentence identification, and finally a best model is obtained; thus, an ancient Chinese sentence segmentation task is achieved. The medical ancient Chinese sentence segmentation method is combined with actual processing text contents, values F of various characteristics in the prior art can be improved by at least 25% by adopting the experiment method, medical ancient Chinese text sentence identification rules are systematically analyzed and concluded, the processing method can be applied to the field of actual traditional Chinese medicine, a medical ancient Chinese text sentence identification corpus is established, and accordingly achievements in scientific research can play a greater role.
Owner:CHENGDU UNIV OF INFORMATION TECH

Pedestrian monitoring method and device based on intelligent three-dimensional monitoring equipment

The invention discloses a pedestrian monitoring method and device based on intelligent three-dimensional monitoring equipment. The pedestrian monitoring method comprises the following steps: acquiring two pedestrian images with different visual angles in the same scene, calculating by using a stereo matching algorithm to obtain a depth image, respectively taking the depth image and a reference color image as the input of a shallow layer network and a deep layer network, constructing a pedestrian detection network based on convolution feature fusion, and obtaining a pedestrian detection result; carrying out collected audio information, abnormal event keyword sentence recognition by adopting a speech recognition algorithm; and intercepting continuous frames of images according to the keyword sentence recognition result and the audio image synchronous calibration result, performing time domain association representation on fusion features of the continuous frames of images by adopting an LSTM algorithm, and performing passenger flow state and event judgment by adopting a softmax classifier after feature mapping in a full connection mode. The device adopting the algorithm comprises a video image processing and central control unit, a cache module, a storage module, an encryption chip, a network transmission module, a USB interface and a power module.
Owner:魏运 +1

Sentence recognizing method and sentence recognizing device

The invention discloses a sentence recognizing method and a sentence recognizing device. The sentence recognizing method includes: customizing mapping classifiers, and setting mapping relations between feature vectors and classification results in the mapping classifiers; combining normal classifiers with the mapping classifiers to form weak classifiers; inputting corpus samples into the weak classifiers for classification recognition, wherein the corpus samples contain feature vectors of instantial corpuses; comparing recognized classification results given by the weak classifiers with a standard classification result, if the recognized classification results are consistent with the standard classification result, judging the classification to be correct, and if the recognized classification results are not consistent with the standard classification result, judging the classification to be incorrect; setting weights of corresponding weak classifiers according to an error rate; inputting a to-be-classified sentence into the weak classifiers for classification so as to obtain classification results; making statistics on the weights of the weak classifiers outputting same classification results to obtain probability values of corresponding classification results; taking the classification result with the maximum possibility value as the final recognition result of the to-be-classified sentence. The sentence recognizing method and the sentence recognizing device have the advantage that accuracy in sentence recognition can be improved.
Owner:BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1

Chinese-Vietnamese bilingual multi-document news viewpoint sentence recognition method based on sentence association graph

The invention relates to a Chinese-Vietnamese bilingual multi-document news viewpoint sentence recognition method based on a sentence association graph, and belongs to the technical field of natural languages. Aiming at a Chinese-Vietnamese bilingual multi-document news viewpoint sentence recognition task, the invention provides a viewpoint sentence recognition model combining sentence associationfeatures and semantic features. The method comprises the following steps: constructing a Chinese-Vietnamese bilingual multi-document association undirected graph fusing event elements and emotion elements; obtaining sentence association features of the Chinese-Vietnamese bilingual; obtaining semantic code representation of the sentence; carrying out dimensionality reduction on the obtained semantic codes to obtain sentence semantic features of the Chinese-Vietnamese bilingual; and performing joint calculation by utilizing the sentence association features and the sentence semantic features toobtain viewpoint sentence recognition features, classifying the viewpoint sentence recognition features by adopting a classifier, optimizing the classifier by adopting a binary classification cross entropy loss function, and realizing viewpoint sentence recognition by adopting the optimized classifier. The Chinese-Vietnamese bilingual multi-document news viewpoint sentence recognition method caneffectively improve the accuracy of Chinese-Vietnamese bilingual multi-document news viewpoint sentence recognition.
Owner:KUNMING UNIV OF SCI & TECH

Method for identifying national language single tone and sentence with a hundred percent identification rate

InactiveCN101281746AAchieve real-time recognition effectTimely identificationSpeech recognitionMonosyllabic wordHuman language
The present invention relates to a Mandarin monosyllabic word and sentence recognition method, which comprises: inviting an enunciator to pronounce each monosyllabic word, and obtaining K samples of the monosyllabic word with the shortest Baye distance to the known monosyllabic word of the enunciator in a database (i.e., take K samples with the shortest Baye distance to the known monosyllabic word of the enunciator as the best samples of the monosyllabic word, and then abstract characteristics of the K best samples to represent the monosyllabic word, and store the abstracted characteristics in a database). Since K best samples are available to calculate the characteristics for each monosyllabic word, the monosyllabic word recognition capability of the present invention is enhanced greatly. Next, a database of sentences and names is created for the sentences and names to be recognized. In a test of 390 monosyllabic words and 460 sentences and names pronounced by three male and female persons, the successful recognition ratio is 100 percent. In addition, sentences or names can be added to the database at any time, and then the sentences or names can be recognized with the database. Above all, the present invention provides a method for correcting the characteristics of monosyllabic words to ensure successful recognition.
Owner:黎自奋 +2

Construction method of case microblog opinion sentence recognition based on feature expansion convolutional neural network

ActiveCN111008274BSolve the problem of domain knowledge expansionImprove accuracyWeb data indexingNatural language data processingTest setNeural network nn
The invention relates to a method for identifying and constructing case microblog opinion sentences using a feature-expanded convolutional neural network, and belongs to the field of natural language processing. The invention includes: constructing a case microblog database; marking comments in the case microblog database to form a training set and a test set of case microblog comments; extracting keywords from a plurality of original microblog texts of a case; The keywords extracted from the training set are used as feature expansion and case microblog comments are vectorized to obtain new vectors; the keywords are used as feature expansion and case microblog comments are vectorized to obtain new vectors as input for training Convolutional neural network, and then input the test set to the trained convolutional neural network to identify and classify opinion sentences. The present invention realizes the acquisition of key words from the original microblog text of the case as a feature extension, identifies the required opinion sentences from the obtained public opinion data, and provides support for the subsequent analysis of the emotional tendency of the opinion sentences.
Owner:KUNMING UNIV OF SCI & TECH
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