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55 results about "Semantic code" patented technology

Semantic markup (or Semantic coding) is the practice of programming your website so that the code used is descriptive and representative of the information it contains.

Syntactic analysis method based on sliding semantic string matching

InactiveCN103500160ASolve backtracking difficultiesSolve the problem of insufficient jurisdictionSpecial data processing applicationsContext-sensitive grammarSyntax
The invention belongs to the field of computer natural language processing, and relates to a method for carrying out high-quality syntactic analysis on human natural language sentences, in particular to a syntactic analysis method based on sliding semantic string matching. The method is characterized in that when a rule base is built, hierarchic flattening transformation is firstly carried out on a usual phrase syntax tree, then semantic code labeling is carried out on the chunking information of each layer, and therefore the chunking rules of context-sensitive grammar of N elements are extracted; in the syntactic analysis process, the optimal chunking rules are matched to carry out stacking chunking type analysis through a sliding semantic string matching model; errors in the lower layer are found and corrected in the higher layer through an error correction template, and heuristic backtracking in the stacking chunking type syntactic analysis is achieved; template information is directly added to a semantic template index, and a machine can learn new syntactic rules immediately. The method solves the problems that a PCFG type syntactic analysis level can hardly be further improved and the correct chucking rules are hard to choose in the stacking chunking type syntactic analysis, and improves the existing syntactic analysis level.
Owner:DALIAN UNIV OF TECH

Multi-model malicious code detection method based on reliability probability interval

The invention provides a multi-model malicious code detection system based on reliability probability interval. Each machine learning detection model corresponds to a distribution of the underlying data, and various threshold-based detection models can be integrated into the statistical platform, so that the distribution of the semantic code data is detected from the multi-angle view, and the model degradation problem caused by the concept drift is relieved. The detection system changes the prediction mode of 0 or 1 of the existing machine learning detection model, calculates the score based on the existing detection model, carries out statistical analysis, and establishes a isotonic regression function for the score distribution of the sample and the label of the sample. For an unknown sample, according to the score given by the existing detection model, the calculated isotonic regression function is input, the reliability probability interval of a certain label can be given, and theprobability interval can relieve the problem of over-fitting of the fixed threshold to the training data set, the adaptive ability of the detection model to the current dynamic data is improved, and the concept drift phenomenon is found in advance.
Owner:NANKAI UNIV

Unreal information detection method based on BERT model and enhanced hybrid neural network

The invention discloses an unreal information detection method based on a BERT model and an enhanced hybrid neural network. The method comprises the steps of preprocessing a to-be-detected text; performing convolution and pooling operation on the input matrix by using a CNN network, and splicing the input matrix into a feature sequence; taking the feature sequence as the input of a BiLSTM network,and comprehensively capturing the deep semantic features of the text from the front direction and the rear direction by using a forward LSTM unit and a backward LSTM unit respectively; generating a semantic code containing attention distribution by utilizing an attention layer, and optimizing a feature vector; and finishing classification detection of the feature vectors by utilizing a classifierof the output layer, and judging whether the feature vectors are the non-real information. According to the method, the CNN, the BiLSTM and the attention mechanism are combined, the detection precision of the unreal information is high, local phrase features and global context features of the text of the unreal information can be extracted, text keywords can also be extracted, and the unreasonable influence of irrelevant information on a detection result is reduced.
Owner:CHINA THREE GORGES UNIV

Facial reconstruction method based on non-supervision automatic encoder

The invention provides a facial reconstruction method based on a non-supervision automatic encoder. The main content of the facial reconstruction method based on a non-supervision automatic encoder includes a semantic code vector, a decoder based on a parameter model and a loss layer. The process of the facial reconstruction method based on a non-supervision automatic encoder includes the steps: scene description is given in a semantic code vector mode; the parameter decoder generates a composite image corresponding the face, and a reverse image is formed through standard reverse propagation, and then end-to-end training without supervision is realized, and the parameter decoder includes an image forming model, a lighting model, image formation and reverse propagation; and a loss function is defined by three items, and the loss layer includes dense luminosity calibration, sparse landmark alignment, statistical regularization and reverse propagation. The facial reconstruction method based on a non-supervision automatic encoder can encode the details of the face, such as posture, shape, expression, skin color and scene lighting, is more exquisite, does not need supervision and allows end-to-end learning. Compared with a network of synthesizing face data training, the network can be preferably popularized to real data.
Owner:SHENZHEN WEITESHI TECH

Keyboard and method for Chinese and English mingled stenographing

The invention relates to 'one code' Chinese and English stenographing technology which is approved and supported by technological innovation fund of Ministry of Science and Technology in 2013. A normal keyboard and a stenograph are combined, clicking and double-clicking are combined, Chinese stenographing and English stenographing are combined, shifting is avoided, pinyin with word blocks (phonetic configurational codes), pinyin with semantic codes (phonetic semantic codes), word blocks with strokes (cconfigurational codes) and five-key single-stoke (stoke codes) can be adopted for typing while double-clicking phonetic configurational stenographing and phonetic semantic stenographing and double-clicking English can be adopted for typing, and no-repeated-code typing of 6763 words in GB2312 and 7000 Chinese characters in the 'Contemporary Chinese Language Universal Character List' can be realized. The method is simple to learn and even pupils can learn soon, operations are convenient, eight keys at most are doubly clicked with both hands, and typing speed is extremely high. The keyboard and software can be used together or independently and are generally applicable to devices such as PCs (personal computers), tablet computers, mobile phones and the like and universally suitable for everyone.
Owner:CHONGQING YIMATONG TECH

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

Information transmission method in semantic communication system

The embodiment of the invention provides an information transmission method in a semantic communication system. The method comprises the following steps that: a sending end firstly performs semantic information extraction to generate a semantic representation sequence, adds information of a semantic knowledge base into the generated semantic representation sequence, and then performs semantic coding to generate a semantic coding sequence; channel coding is performed on the semantic coding sequence to generate a wireless signal, and the wireless signal is transmitted to a receiving end through a wireless channel; the receiving end carries out channel decoding and semantic decoding on the received wireless signal; the receiving end feeds back to the sending end according to whether the channel decoding and the semantic decoding are correct or not; and the sending end decides whether retransmission is needed or not and the retransmission mode according to the feedback result until the receiving end obtains a correct semantic decoding result. According to the technical scheme of the embodiment of the invention, the efficiency of data transmission and feedback retransmission can be improved, and the waste of computing resources and transmission resources is avoided.
Owner:ZHEJIANG LAB

Paragraph semantics-based middle and primary school test question segmentation and extraction method and system

The invention discloses a paragraph semantics-based middle and primary school test question segmentation and extraction method and system. The method comprises the following steps: reading charactersof each paragraph in a test paper document, and analyzing structural semantics of each paragraph by adopting a structural semantic regular expression matching rule; recording the paragraph structure of the whole test paper by adopting paragraph structure semantic coding specifications to form a paragraph structure semantic string; performing structure correction and structure division on the paragraph structure semantic string; and according to the record of the structure division, extracting a fixed format from the test paper document to form a formatted document of a single test question. According to the invention, a large number of test paper documents commonly seen in middle and primary schools are classified and concluded according to structural modes; according to the test paper document structure analysis method, a plurality of most common structure models are abstracted, and the document structure analysis method with high adaptability is designed, so that structured splittingand test question information segmentation and extraction of the test paper document are realized, and the test paper document structure analysis method has high expandability and wide test paper model applicability.
Owner:湖南省侍禾教育科技有限公司
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