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34results about How to "Achieve generalization" patented technology

Short-term load forecasting method for microgrid based on independent component analysis and support vector machine

The invention discloses a microgrid short-term load forecasting method based on independent component analysis and support vector machine, which comprises the following steps: adopting Chebyshevv orthogonal polynomial to carry out curve fitting on historical daily load data of the microgrid region, and adding penalty function to carry out optimization; Updating the historical load data and using independent component analysis method to obtain the load independent separation source and mixed matrix of historical load data; For the meteorological data of historical day and forecast day, principal component analysis is used to obtain the principal component vector, and the decision data is combined with the date data. The mixed matrix of historical load data is used as the target data, combined with the historical day decision data, and the support vector machine (SVM) and fireworks algorithm are used to optimize the penalty factor and the kernel parameter, so as to obtain the optimal SVMtraining model. The forecasted daily load curve is obtained by substituting the forecasted daily decision data. The invention can remove noise interference, and can effectively and accurately predictthe load of the microgrid in a short time in the future.
Owner:JIANGSU ELECTRIC POWER CO +1

Portable air conditioner suitable for various occasions

The invention provides a portable air conditioner suitable for various occasions, which comprises an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit are connected with each other via an indoor and outdoor connecting assembly; fast switching of the indoor and outdoor connecting assembly is realized via a fast connecting component; the indoor unit comprises an automatic drainage system which is characterized in that a water level induction passage is formed on the inner side surface of a clamping groove formed in one end of an indoor unit water-containing plate; an electromagnetic induction switch is in interference fit with an electromagnetic induction switch clamping groove; a floating ball is limited in the water level induction passage; an indoor unit drainage pipe is connected to the water-containing plate; an outdoor unit drainage pipe is connected to an outdoor unit water pump; after the indoor unit drainage pipe and an outdoor unit connecting water pipe are butted via the fast connecting component, an automatic drainage passage is formed; both the electromagnetic induction switch and the water pump communicate with a controller; and the controller controls the on/off of the water pump according to water level information of the electromagnetic induction switch. Due to the automatic drainage system, the portable air conditioner can run continuously to ensure the comfort of a user; and moreover, as manual drainage is avoided, the portable air conditioner is convenient and practical for the user.
Owner:安徽金鸿盛电气有限公司

College course selection and repair mixed recommendation method and system based on attention mechanism

The invention discloses a college course selection and repair mixed recommendation method and system based on an attention mechanism. The method comprises the steps that historical course selection behavior vectors of other students, historical course selection behavior vectors of professional courses of target students and candidate course selection vectors are constructed according to historicalcourse selection records of the target students and the other students; attention weighting is performed on the target student vectors according to the historical course selection behavior vectors and the candidate course selection vectors of the target student specialized courses, and student relationship vectors with student relationship weights are obtained according to the weighted target student vectors and student relationship pairs; and a target student preference vector is obtained according to the candidate course selection vector, the historical course selection behavior vectors ofother students and the student relationship vector, thus sorting the candidate course selection according to the target student preference vector, and selecting the first k course selection courses torecommend to the target student. According to the recommendation algorithm, course recommendation is carried out by using multi-party information, so that the memory ability and generalization ability of a recommendation effect can be effectively realized.
Owner:SHANDONG NORMAL UNIV

Search result sorting method and device, equipment and storage medium

The invention relates to a search result sorting method and device, equipment and a storage medium. The method comprises the following steps: acquiring second behavior characteristic data related to acurrent search term in behavior characteristic data corresponding to a newly-added search result and first behavior characteristic data related to the current search term in behavior characteristic data corresponding to a historical search result respectively; obtaining a target search term similar to the current search term and a target search result similar to the newly added search result; determining associated behavior feature data of the newly added search result according to the target search term and/or the target search result; and determining a search result sequence according to the second behavior feature data, the associated behavior feature data and the first behavior feature data. According to the method, the confidence coefficient of the associated behavior characteristicdata is improved, the behavior characteristic data corresponding to the newly added search result is supplemented according to the associated behavior characteristic data, and the rationality and accuracy of search result sorting are improved.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

Automatic driving simulation test method and device for scene library

The embodiment of the invention discloses an automatic driving simulation test method and device for a scene library, and the method comprises the steps: determining a traffic test scene based on a target scene template and a modification instruction corresponding to the target scene template, wherein the modification instruction is an instruction for modifying a scene element corresponding to thetarget scene template; triggering a test process corresponding to a preset test event if it is detected that the position relationship with the tested vehicle exists in the scene objects of the traffic test scene and the scene object of the test triggering condition corresponding to the preset test event is reached; and monitoring the behavior state of the tested vehicle in the test process corresponding to the preset test event, and obtaining the behavior state parameter corresponding to the behavior state of the tested vehicle, so as to determine the test result of the tested algorithm of the tested vehicle through the behavior state parameter, thereby achieving the automatic and comprehensive construction of the automatic driving scene. The test efficiency of the automatic driving algorithm is improved while the automatic driving algorithm is tested more comprehensively.
Owner:北京赛目科技股份有限公司 +1

Method for monitoring operation standardization in concrete unloading process,and equipment

The invention provides a method for monitoring operation normalization in a concrete unloading process, and equipment. The method comprises: extracting a gray matrix of a color channel of a concrete unloading operation image, performing edge information extraction on the gray matrix to obtain a feature matrix of the color channel, and performing transverse splicing on the feature matrix to obtain a feature vector of the concrete unloading operation image; taking the number of elements of the feature vector as the number of training samples, initializing a behavior classification model, constructing a loss function for the training samples, constructing unconstrained optimization of a weight vector of a multi-layer perceptron neuron according to the loss function, and calculating an optimal solution of the unconstrained optimization by adopting a back propagation algorithm to obtain the behavior classification model; and monitoring the operation process of concrete unloading by adopting the behavior classification model, and determining whether the operation of the concrete unloading process is standard or not. According to the invention, the accuracy of monitoring whether the operation in the concrete unloading process is standard can be improved, and the monitoring cost is reduced.
Owner:汉谷云智(武汉)科技有限公司

Method and system for classifying crops

ActiveCN109409261BDemonstrate reusabilityReduce selection workloadCharacter and pattern recognitionNetwork modelCrop phenology
The invention discloses a crop classification method and system. The classification method includes: constructing historical crop marker samples according to the historical multi-temporal mid-segment images and historical crop phenology data; constructing high-precision small-area current crop marker samples according to the current multi-temporal high-resolution images and current crop phenology data; according to ResNet model and PSPNet model to establish the remote sensing network RSNet model; pre-train the remote sensing network RSNet model according to the historical training samples to establish the pre-trained remote sensing network RSNet model; fine-tune the pre-trained remote sensing network RSNet model according to the current training samples to establish a fine-tuned remote sensing network RSNet model; establishing an optimal pre-trained remote sensing network RSNet model and an optimal fine-tuning remote sensing network RSNet model; classifying the crops according to the optimal pre-training remote sensing network RSNet model and the optimal fine-tuning remote sensing network RSNet model. By adopting the classification method and system provided by the present invention, the workload of training sample selection can be reduced, and the classification efficiency can be improved.
Owner:BEIJING NORMAL UNIVERSITY

A Mesoscopic Fuel Consumption Prediction Method Based on rbfnn

The invention relates to a RBFNN-based mesoscopic fuel consumption prediction method, which determines the influencing factors of road energy consumption; divides the vehicle driving trajectory into driving segments; calculates the average energy consumption of vehicles in a form segment; and analyzes the average energy consumption distribution of the road section Calculate the average energy consumption of the road section; determine the parameter settings such as road energy consumption factors; use the obtained data set as the training set of the neural network for model learning; input the test data set, and calculate the prediction result of road fuel consumption. With the support of a large amount of energy consumption trajectory data set, the present invention accumulates a large number of observation samples on input parameters such as road section type, vehicle average speed and output parameters of road energy consumption, and grasps the influencing factors of road energy consumption through the training of observation samples The law of the correlation relationship with the average energy consumption of the road, so that the energy consumption of other road sections in the road network with insufficient energy consumption trajectory samples can be predicted, and the generalization of the energy consumption law has been realized. There is a high degree of monitoring granularity. precision.
Owner:BEIJING TRANSPORTATION INFORMATION CENT +1

Operational normative monitoring method and equipment for concrete unloading process

The invention provides a concrete unloading process operation normative monitoring method and equipment. The method includes: extracting the grayscale matrix of the color channel of the concrete unloading operation image, performing edge information extraction on the grayscale matrix to obtain the feature matrix of the color channel, and horizontally splicing the feature matrix to obtain the feature vector of the concrete unloading operation image ; With the number of elements of the feature vector as the number of training samples, initialize the behavior classification model, build a loss function for the training samples, build the unconstrained optimization of the weight vector of the multilayer perceptron neuron according to the loss function, and adopt the backpropagation algorithm The optimal solution of the unconstrained optimization is calculated to obtain a behavior classification model; the operation process of concrete unloading is monitored by using the behavior classification model to determine whether the operation of the concrete unloading process is standardized. The invention can improve the accuracy of monitoring whether the operation of the concrete unloading process is standardized, and reduce the monitoring cost.
Owner:汉谷云智(武汉)科技有限公司

Short-term load forecasting method for microgrid based on independent component analysis and support vector machine

The invention discloses a microgrid short-term load forecasting method based on independent component analysis and support vector machine, including: using Chebyshevv orthogonal polynomials to perform curve fitting on the historical daily load data of the microgrid area, and adding a penalty function for optimization; updating The historical load data is analyzed independently by using the independent component analysis method to obtain the load independent separation source and mixing matrix of the historical load data; for the meteorological data obtained on the historical day and the forecast day, the principal component analysis method is used to obtain the principal component vector, and combined with The date data are used together to form decision-making data; the mixing matrix of historical load data is used as the target data, combined with the historical daily decision-making data, the support vector machine and the fireworks algorithm are used to optimize its parameter penalty factor and kernel parameters, and obtain the optimal support vector machine training model ; Substitute the forecasted daily decision-making data to obtain the forecasted daily load curve. The invention can remove noise interference, and can effectively and accurately predict the future short-term load of the microgrid.
Owner:JIANGSU ELECTRIC POWER CO +1

Method and device for automatic driving simulation test of scene library

The embodiment of the present invention discloses a method and device for automatic driving simulation testing of a scene library. The method includes: determining the traffic test scene based on the target scene template and its corresponding modification instruction, and the modification instruction is to modify the scene element corresponding to the target scene template Instruction; if it is detected that there is a positional relationship between the scene object of the traffic test scene and the vehicle under test, and the scene object that reaches the test trigger condition corresponding to the preset test event, triggers the test process corresponding to the preset test event; monitor the preset The behavior state of the vehicle under test in the test process corresponding to the test event, and obtain the behavior state parameters corresponding to the behavior state of the vehicle under test, so as to determine the test results of the algorithm under test of the vehicle under test through the behavior state parameters, so as to realize the automatic driving scene The automation and comprehensive construction of the automatic driving algorithm can improve the testing efficiency of the automatic driving algorithm while testing the automatic driving algorithm more comprehensively.
Owner:北京赛目科技股份有限公司 +1

A Portable Air Conditioner Applicable to Various Occasions

The invention provides a portable air conditioner suitable for various occasions, which comprises an indoor unit and an outdoor unit, wherein the indoor unit and the outdoor unit are connected with each other via an indoor and outdoor connecting assembly; fast switching of the indoor and outdoor connecting assembly is realized via a fast connecting component; the indoor unit comprises an automatic drainage system which is characterized in that a water level induction passage is formed on the inner side surface of a clamping groove formed in one end of an indoor unit water-containing plate; an electromagnetic induction switch is in interference fit with an electromagnetic induction switch clamping groove; a floating ball is limited in the water level induction passage; an indoor unit drainage pipe is connected to the water-containing plate; an outdoor unit drainage pipe is connected to an outdoor unit water pump; after the indoor unit drainage pipe and an outdoor unit connecting water pipe are butted via the fast connecting component, an automatic drainage passage is formed; both the electromagnetic induction switch and the water pump communicate with a controller; and the controller controls the on / off of the water pump according to water level information of the electromagnetic induction switch. Due to the automatic drainage system, the portable air conditioner can run continuously to ensure the comfort of a user; and moreover, as manual drainage is avoided, the portable air conditioner is convenient and practical for the user.
Owner:安徽金鸿盛电气有限公司
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