59results about How to "Reduce training complexity" patented technology

An optical proximity corrected mask design is generated from a given a target mask design by processing the target mask design through a feature trained neural network, configured to perform an optical proximity correction of geometric features, to obtain a representation of a first corrected mask design. The target mask design is processed in parallel through a rule processor, configured to perform placement of sub-resolution geometric features relative to geometric features in the target mask design, to obtain a representation of a second corrected mask design. A layout reassembler operates to generate a corrected mask design through an overlaid composition of said first and second corrected mask designs.

The invention provides a training method for a vehicle identification model, comprising the following steps of: collecting image samples, transforming the collected image samples, representing a transformed image sample by a feature matrix with constant size but transformable features, extracting partial features in the feature matrix with constant size but transformable features of each image sample to compose a feature space, performing sparse coding on the feature space to obtain a sparse coding feature basis matrix, computing the maximum multi-scale feature vector of each image sample, and determining the parameter of a linear classifier. By the training method for the vehicle identification model, the complexity, occupied memory space and computing time of an algorithm can be reduced, so that the vehicle identification is implemented fast; and meanwhile, the vehicle identification precision is improved. The invention further provides a vehicle identification method and apparatus based on the training method for the vehicle identification model.

The present invention discloses a method and a system for melanoma image tissue segmentation based on a deep neural network. A deep neural network technology is employed to solve the tissue segmentation problem of dermatoscope images of melanoma, and the method and the system for melanoma image tissue segmentation based on a deep neural network are mainly a medical image analysis processing technology. An improved deep neural network structure to perform modeling, dermatoscope images having segmentation tags are employed to train the model, and the trained model has an ability of suspicious tissues to new dermatoscope images. The method and the system are to locate suspicious areas in the melanoma dermatoscope images and to perform pixel segmentation. The method and the system for melanomaimage tissue segmentation based on the deep neural network employ a new deep learning technology, fully develop the capacity of collection of various hierarchical features of the image data, can be applied to the modeling process, can perform location and segmentation of the suspicious skin tissues and can provide good reference for further analysis by dermatologists.

The invention discloses a cognitive radio frequency spectrum perception method based on compressed sensing and a BP (back-propagation) neural network. The method of the invention comprises a training process and an actual detection process. The training process comprises: carrying out compression sampling whose rate is lower than a Nyquist sampling rate on an original signal of cognitive radio; carrying out 1-bit quantification processing on sampling data; taking the compression sampling data after the quantification processing as training input, taking an actual frequency band occupancy situation as training output, and training a BP neural network detector. The actual detection process comprises: carrying out the compression sampling on the original signal of the cognitive radio and carrying out the 1-bit quantification processing on the sampling data; inputting the compression sampling data after the quantification processing into the trained BP neural network detector so as to obtain the output, wherein the output is the frequency spectrum occupancy situation of the cognitive radio. The invention also discloses a cognitive radio frequency spectrum perception system which uses the above method. By using the method of the invention, algorithm complexity is low and real-time performance of the frequency spectrum detection can be greatly increased.

The invention relates to an ultra-short-period wind speed prediction method based on a spectral clustering type and genetic optimization extreme learning machine. The method comprises the steps that S1. data are prepared; S2. the prepared data are preprocessed; S3. the preprocessed data are subjected to wavelet transformation; S4. the data obtained after wavelet transformation are subjected to normalization processing; S5. through correlation analysis, the data obtained after normalization processing are selected, so that an input variable is determined; S6. through main component analysis, the input variable generated in the S5 is subjected to dimension reduction processing; S7. through a spectral clustering type method, the data obtained after dimension reduction processing in S6 are subjected to clustering analysis, and an extreme learning machine sample space is formed with the data obtained after normalization processing in the S4; S8. through the extreme learning machine and a genetic algorithm, the data of the extreme learning machine sample space formed in the S7 are subjected to hierarchical prediction; and S9. hierarchical prediction values are added, and an ultra-short-period wind speed prediction value is obtained. Ultra-short-period and multi-step prediction on wind speed are achieved, prediction accuracy is improved, the computing amount is greatly lowered, and prediction efficiency is improved.

The invention discloses a CNN multipoint regression prediction model for traffic flow prediction. The CNN multipoint regression prediction model comprises the following steps that a first perception input layer; a second convolutional layer that performs convolution on the input layer data and outputs the data by an activation function; a multi-layer convolutional layer that performs convolution on the output of the last layer as an input and outputs data by an activation function; a fourth full-link layer; a fifth discard layer: a random discard layer discards some redundant neurons and retains 40% to 70% of the full-link nodes of the last layer; a sixth output layer that subjects the effective node output of the discard layer to regression calculation, obtains a regression value as the output of the entire network, sets a total of m output nodes, that is, maps the full-link layer to the output layer to achieve weight combination. Compared with a traditional statistical regression model, the CNN multipoint regression prediction model has a feature extraction ability associated with a data space, has the advantages of local receptive field and weight sharing, and makes a better balance in time complexity and feature selection.

The invention discloses a network traffic anomaly detection method based on a small amount of annotation data, and the method comprises the steps: carrying out the dimension reduction of a feature vector through employing double auto-encoders, and then carrying out the supervised training through employing a deep neural network; dividing the network traffic into two types of positive samples and negative samples, and finally screening out a part of important samples in unlabeled data and submitting the samples to experts for labeling, increasing the number of labeled samples, iteratively updating an auto-encoder and a classifier, and then employing the trained classifier for detecting network traffic abnormality. According to the invention, a double-auto-encoder architecture is proposed, pure positive and negative samples are used for respectively training the auto-encoders, and the stability of the classifier is improved. Meanwhile, the loss function of the deep neural network is improved, the sample weight is adjusted in a finer-grained manner, the problem of overfitting caused by imbalance of positive and negative samples and small training sets is solved, a new method for calculating the marking value of the unmarked data is provided, the samples with high marking value are selected to be delivered to experts, and the marking cost is reduced.

The invention provides a convolutional neural network seismic signal denoising method based on attention guidance. The method comprises the following steps: synthesizing effective signals in a seismic record by adopting Ricker wavelets; preprocessing the synthesized seismic data set, and constructing a training data set containing a noise set and a signal set; and inputting training data into an ADNet network model composed of four modules including a sparse block (SB), a feature enhancement block (FEB), an attention block (AB) and a reconstruction block (RB) for training, and after training is completed, suppressing the noise of seismic signals by using the ADNet network. According to the denoising method provided by the invention, the noise in the seismic signal can be suppressed, detail information is reserved, and the processing effect is relatively good.

The invention relates to a training method of an abnormal region image generation network and a related product. The method comprises the steps of acquiring a training sample image, wherein the training sample image has an abnormal area; inputting the training sample image into an initial abnormal region image generation network to obtain an initial abnormal region image, and fusing the initial abnormal region image with the training sample image to obtain a fused image; wherein the fused image comprises a preset simulation mark; inputting the fused image and the real sample image into an initial discrimination network to obtain a discrimination result of the fused image; calculating the loss between the discrimination result and the simulation mark by adopting a loss function, and training the initial discrimination network and the initial abnormal region image generation network according to the loss; and when the value of the loss function reaches convergence, completing training ofthe initial abnormal region image generation network to obtain an abnormal region image generation network. The method can improve the precision and training efficiency of the abnormal region image generation network obtained by training.

The invention relates to a deep inspection method for automatic identification of a ship corrosion area, wherein the method comprises the steps: building a pre-training image identification model and a corrosion image automatic identification model, then labeling a large number of ship images, and training the corrosion image automatic identification model through a part of images with labels; inputting a plurality of to-be-detected ship images into the trained model, reserving the images marked with corrosion labels, and marking a corrosion area bounding box, wherein the marked images form a corrosion area positioning data set; establishing a corrosion area target detection model, and training the model by using part of the images in the corrosion area positioning data set; and finally, inputting a to-be-positioned rusted ship image into the trained corrosion area target detection model, outputting bounding box parameters of a corrosion area, and marking the position of the corrosion area by using a bounding box. According to the method, an integrated process from ship image acquisition to corrosion area automatic positioning is realized, a deep learning image recognition algorithm and a target detection algorithm are fused, and the method is very intelligent.

The embodiment of the invention provides a weak supervision target detection method and device. The method comprises the steps of extracting image features of a to-be-detected image; wherein the to-be-detected image comprises at least one to-be-detected object; determining an initial detection result for each to-be-detected object based on the extracted image features, each initial detection result being an initial detection frame containing one to-be-detected object; based on the extracted image features, determining a salient region of each to-be-detected object; and optimizing each initialdetection result based on each salient region to obtain a target detection result for each to-be-detected object. Compared with an existing method for detecting a supervised target, a segmentation model does not need to be trained additionally, the salient region serves as the auxiliary information for optimizing the detection result, so that the training complexity of the target detection task isreduced, the salient region serves as the auxiliary information of the optimization process, errors in the optimization direction can be avoided, and the training efficiency is improved.

The invention discloses a hybrid neural network fault prediction method and system for a high-performance computer, and the method comprises the steps: collecting the log data of the high-performance computer, wherein the log data comprises a log event id, a timestamp when a corresponding log event occurs, and a log event level; performing data cleaning and feature selection on the collected log data to obtain initial feature data; constructing a fault prediction model by using a random forest algorithm, inputting the obtained initial feature data into the fault prediction model, calculating feature importance by using the random forest algorithm, and performing feature selection to obtain feature sample data; and inputting the obtained feature sample data into an LSTM network model, and predicting whether a fault event exists in the feature sample by using the LSTM network model. According to the method, the log data features are scored and selected through the random forest, and the dimensionality is reduced, so that the training complexity can be reduced, and the training degree is accelerated.

The invention relates to POI information classification based on a convolutional neural network, and belongs to the technical field of computers. According to the POI information classification methodand device based on the convolutional neural network, word segmentation processing is carried out on POI information, the POI information is converted to generate a vector matrix corresponding to thePOI information, and the vector matrix is processed through a pre-trained convolutional neural network model to determine the classification corresponding to the POI information. The convolutional neural network model used in the method is easy to train and obtain, the preprocessing process in the classification process is simple, and the classification efficiency is high and accurate.

The invention relates to the field of block storage systems and artificial intelligence, and discloses a risk prediction model training method and a related device, and the method comprises the steps:obtaining a first financial data set which comprises M pieces of first financial data corresponding to a plurality of first fields; for the first financial data set, vectorizing a plurality of piecesof first financial data associated with each of the plurality of first fields to obtain a plurality of first vectors; determining the correlation between every two first vectors in the plurality of vectors by adopting a preset feature selection algorithm; determining a second financial data set from the first financial data set according to the correlation between every two first vectors; and training a risk prediction model by adopting the second financial data set. By implementing the embodiment of the invention, the training period of the risk prediction model is shortened, and the training complexity is reduced.

The invention relates to a speech translation method, device and equipment and a translation machine; and the method comprises the steps: obtaining speech information, and determining the voiceprint features of a speaker through the speech information; judging whether the speaker is a first user or not according to the voiceprint characteristics of the speaker; if the speaker is the first user, determining a first language of the first user, identifying the speech information based on the first language, and converting the identified information into information of a second language based on apreset second language; and if the speaker is not the first user, determining a preset second language, identifying the speech information based on the second language, and converting the identifiedinformation into information of the first language based on the first language of the first user. Thus, a language recognition model does not need to be established, the bilingual recognition problemamong multiple languages and the automatic voice translation selection problem among the bilingual classes can be solved through voiceprint recognition, the translation training complexity is reduced,and the translation efficiency is effectively improved.

The invention relates to a voice recognition method and device, computer equipment and a storage medium. The method comprises the steps: acquiring training data including standard mandarin training data and non-standard mandarin training data; inputting the standard mandarin training data into the main neural network for training to obtain a mandarin acoustic model; adding a branch neural network in the mandarin acoustic model; inputting the standard mandarin training data and the non-standard mandarin training data into a mandarin acoustic model for multi-task training; updating the mandarin acoustic model to generate an initial acoustic model; inputting the training data into the initial acoustic model for training to obtain a target acoustic model; and inputting the voice information into the target acoustic model to obtain semantic information of the voice information. Not only is the ASR recognition efficiency improved, but also the ASR identification accuracy is prevented from being influenced by accent identification errors. The invention further relates to a block chain technology, and the target acoustic model can be stored in a block chain node.

The invention relates to a blockchain technology and a detection model technology in artificial intelligence, and discloses a training method of a quality detection model and a related device. The method comprises the steps: acquiring a first financial data set, wherein the first financial data set comprises M pieces of first financial data corresponding to a plurality of first fields; for the first financial data set, determining a maximum value and a minimum value in a plurality of pieces of first financial data associated with each first field in a plurality of first fields; according to the maximum value and the minimum value in the multiple pieces of first financial data associated with each first field, mapping the multiple pieces of first financial data associated with each first field to a preset interval to obtain a second financial data set; and training a quality detection model by adopting the second financial data set. By implementing the embodiment of the invention, the training period of the quality detection model is shortened, and the training complexity is reduced.