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19 results about "Instance selection" patented technology

Instance selection (or dataset reduction, or dataset condensation) is an important data pre-processing step that can be applied in many machine learning (or data mining) tasks. Approaches for instance selection can be applied for reducing the original dataset to a manageable volume, leading to a reduction of the computational resources that are necessary for performing the learning process. Algorithms of instance selection can also be applied for removing noisy instances, before applying learning algorithms. This step can improve the accuracy in classification problems.

Large model test set evaluation method based on project reaction theory

The invention discloses a large model test set evaluation method based on a project reaction theory, which belongs to the technical field of large language models, and comprises the following steps: (1) data preparation; (2) embedding and obtaining questions; (3) reference instance selection; (4) obtaining a model test result; (5) constructing a network structure; (6) model training; (7) Fisher information calculation is carried out; and (8) performing quality evaluation and parameter analysis on the test set. According to the method, the Fisher information, the difficulty parameter b, the distinction degree parameter a, the guess parameter c, the feasibility parameter d and other multi-dimensional indexes of each question are obtained, and the quality of each benchmark test is analyzed and evaluated based on the indexes, so that the quality of the benchmark test is analyzed more accurately and more comprehensively, and then the capacity of a large model and the quality of a test set are evaluated more accurately.
Owner:CHINA ELECTRONICS STANDARDIZATION INST

Object-oriented infrastructure-as-code platform (ooiacp)

Novel tools and techniques are provided for implementing object-oriented infrastructure-as-code platform (“OOIACP”) and its functionalities. In various embodiments, when a request to process one or more lifecycle events is received, a computing system may perform: selecting and scaling across a plurality of OOIACP instances; and causing the selected plurality of OOIACP instances to process the one or more lifecycle events. In some cases, each OOIACP instance may include an infrastructure-as-code (“IAC”) command line that instantiates component infrastructure among a plurality of component infrastructure to process at least one lifecycle event among the one or more lifecycle events concurrently and independently of other OOIACP instances. In some instances, the first plurality of OOIACP instances may be located within an environment in which the plurality of component infrastructure is located.
Owner:CENTURYLINK INTELLECTUAL PROPERTY LLC

Single-stage full-sparse three-dimensional target detection method based on point cloud completion

The invention discloses a single-stage full-sparse three-dimensional target detection method based on point cloud completion, and the method mainly comprises the steps: firstly, processing a point cloud through a sparse backbone network to extract the features of each point, and then inputting the features into an instance selection module to generate clustering instances; processing each clustering instance by an alignment-based point cloud completion module, and finally generating a complete point cloud; further, point features are input to a center point voting network, where each point predicts its perceived object center. The predicted center point and complemented point cloud features are fused at a feature level, and finally the generated features are sent to a detection head to obtain a 3D bounding box and a corresponding confidence score. The method is suitable for a single-stage full-sparse three-dimensional target detection network, and can improve the detection performance of a single-stage full-sparse three-dimensional target detector for severely shielded objects.
Owner:NANJING UNIV OF SCI & TECH

Edge delay-aware microservice instance selection method based on graph reinforcement learning

The application discloses an edge delay perception microservice instance selection method based on graph reinforcement learning, belongs to the field of Internet of Things and edge computing, and comprises the following steps: first, edge computing environment state perception and graph structure feature extraction of an edge node instance deployment graph and a microservice request calling graph; second, microservice instance selection action decision generation based on graph features; third, edge computing environment interaction and classified experience sample recording; and fourth, edge microservice instance selection graph reinforcement learning model training and iterative optimization based on multiple groups of experiences, so that stable iterative optimization of the model is realized. The application realizes efficient selection of microservice instances in an Internet of Things edge computing environment, and takes into account request delay and instance load balancing.
Owner:CHINA JILIANG UNIV

Noise-containing label cross-modal retrieval method based on neighborhood perception instance refining

The invention discloses a noisy label cross-modal retrieval method based on neighborhood perception instance refining, which comprises the following steps of: performing feature extraction on input noisy cross-modal data, and mapping the data to a shared semantic space; constructing a cross-modal boundary keeping module, and enhancing the global discrimination capability of feature representation through global mechanism regularization; constructing a cross-modal neighborhood consensus module, generating a soft label based on the cross-modal neighborhood consensus module, dynamically dividing a data set, and performing a targeted optimization strategy on the data set; integrating the loss functions of all the modules to perform end-to-end joint optimization, and training to obtain a cross-modal retrieval model with high robustness to noise tags; and efficient cross-modal retrieval is realized. According to the method, the robust learning method, the instance selection method and the label calibration method are integrated together, so that maximum utilization and fine processing of all training data are realized, and the retrieval performance in a high-noise environment is remarkably improved.
Owner:SICHUAN UNIV

Power distribution network fault rapid positioning method and system

The invention discloses a power distribution network fault rapid positioning method and system. The method comprises the steps of data acquisition, triple undersampling processing, secondary decomposition, dynamic similar distance matrix calculation and condensed hierarchical clustering. The invention belongs to the technical field of power distribution networks, and particularly relates to a power distribution network fault rapid positioning method and system.According to the scheme, triple undersampling processing is carried out on original data based on unmarked data injection, instance selection and neighborhood cleaning; a residual term is secondarily decomposed into an intrinsic mode function and a residual, so that data can be more finely disassembled, and more signal components and features are extracted; a dynamic similarity distance calculation method is adopted to more accurately describe the similarity between the two time sequences; the dynamic similarity distance matrix is adopted for hierarchical clustering, so that dynamic similarity information between data can be fully utilized; fault positioning is carried out based on double tags, and the positioning speed and accuracy are improved.
Owner:GUANGXI POWER GRID CORP

Process lifecycle management methods and systems

Process knowledge creation, development, and management techniques allow for and enable the creation of a universal process definition (UPD) of an industrial process, the automatic conversion or transformation of the UPD into different site-specific process definitions, and the implementation of the site-specific process definitions at different manufacturing, production, and / or automation sites. Typically, the UPD is site- and equipment-agnostic, and the transformation may generate and provide a set of site-specific process definition implementation files or routines to configure and / or govern the behavior of various site-specific execution systems, e.g., as site-specific operational instances of the UPD. The techniques may utilize feedback and information generated by site-specific operational instances to generate learned knowledge and update the UPD accordingly so that subsequent instantiations of the UPD may incorporate (and reap the benefits of) the learned knowledge. The techniques may automatically select a most suitable site for a particular instantiation of the UPD.
Owner:FISHER ROSEMOUNT SYST INC

Low-illumination target detection method based on class consistency screening and generative completion

The invention discloses a low-illumination target detection method based on class consistency screening and generative completion. The method comprises the steps of 1, performing feature extraction on a low-illumination input image, and outputting classification, positioning and centrality results; 2, class consistency screening is executed according to the instance-level basic features, and high-quality representative instance samples are obtained; step 3, constructing a category orthogonal space by using the instance sample and a vision-language model to form enhanced category-level semantic features; 4, generating corresponding phantom features based on the memory bank, and providing the phantom features and the instance samples to the step 5 for use; 5, multi-layer domain alignment is executed at the image level, the instance level and the category level, and unified optimization is completed; and 6, performing open set rejection judgment on the low-confidence and low-affinity targets in a reasoning stage, and outputting a final detection result. According to the method, three key problems of high-quality instance selection, cross-domain category discrimination enhancement and missing category completion are cooperatively solved on the premise of not depending on target domain labeling and not increasing the overhead of a reasoning stage.
Owner:XIDIAN UNIV

Multi-tensor parallel instance selection method and device, equipment and storage medium

PendingCN122635574AReduce selection biasState predictionAlgorithm
The application discloses a multi-tensor parallel instance selection method and device, equipment and a storage medium, which are corresponding solutions. In the solutions, stage sub-request selection is performed between inference instances with fixed tensor parallelism, and the tensor parallel configuration of the inference instance does not need to be dynamically changed for a single request. Moreover, candidate cost is calculated based on service pressure after placement and delay target occupation, so that the inference instance selection considers the delay target risk of the current stage sub-request and the service pressure of the allocated instance set. In addition, a stage-related state prediction model is adopted, and a unified candidate cost calculation method is adopted, so that the instance selection deviation caused by different evaluation logics in different inference stages can be reduced.
Owner:UNIV OF SCI & TECH OF CHINA

Detection of instance liveness

According to a method, at a given instance of a cluster of instances of at least one service, at least one monitored instance is selected from the cluster of instances according to a selection criterion such that each instance of the cluster of instances is selected as a monitored instance by at least one other instance of the cluster of instances. The given instance is caused to detect an operational status of the at least one monitored instance. If the operational status indicates that one of the at least one monitored instance is failed, the operational status of the failed monitored instance is provided to a centralized controller for the cluster of instances. Through the solution, the detection of instance liveness can be executed by individual instances symmetrically in a distributed and self-management manner.
Owner:NOKIA SOLUTIONS & NETWORKS OY

Face image detection method based on distributed optimization instance selection

The invention discloses a face image detection method based on distributed optimization instance selection. The face image detection method is applied to a work and coordination node network. A work node carries out multi-objective evolutionary optimization with classification precision and compression rate as targets on a local sample; the coordination node aggregates the population by adopting direct splicing or based on a conflict instance strategy according to an iteration process and executes global evolution; variation parameters are adjusted by counting the instance frequency of the Pareto optimal solution set, and feedback information is generated to guide subsequent iteration of the working nodes; and finally, selecting an optimal SVM model for detection. Through a distributed coevolution and feedback mechanism, redundant samples can be effectively eliminated under the condition that data are not concentrated, and the recognition efficiency and classification accuracy of face detection are improved.
Owner:ANHUI UNIV

System selected fungible configurable attributes for a compute instance

Techniques for configuring and creating a compute instance are disclosed. A system may receive a request to launch a compute instance where the compute instance defined by a configurable attribute, The request comprises one or more user-specified criteria for the configurable attribute without including a specific value for the configurable attribute. The system determines a set of candidate values for the configurable attribute. The system selects the specific value for the configurable attribute from the set of candidate values for the configurable attribute, based on the one or more user-specified criteria. The system stores the specific value in association with the configurable attribute; and launches the compute instance based on the system-selected specific value for the configurable attribute of the compute instance.
Owner:ORACLE INT CORP

A fault diagnosis method and apparatus that integrates alarm and trend event data

This invention discloses a fault diagnosis method and apparatus that integrates alarm and trend event data. The method includes the following steps: preprocessing the raw time-series data of an industrial system to obtain preprocessed data; extracting multi-value alarm events and multi-class trend events, and fusing the two types of feature events to form a hybrid sequence; using the Word2Vec core model to vectorize and encode the events in the hybrid sequence; constructing an LSTM model; and employing an instance transfer learning strategy to update the model trained using source domain data to meet the needs of target domain diagnosis, thus achieving cross-domain fault diagnosis. This invention, by simultaneously extracting alarm and trend events, can more comprehensively capture the evolution of faults; through instance selection and weight adjustment, it can effectively solve the problem of scarce target domain data and improve diagnostic accuracy; the method can be extended to complex systems such as shipbuilding, petroleum, and chemical industries, and is compatible with different industrial scenarios. It can be adapted to new systems by adjusting the event definitions, making it widely applicable.
Owner:CNOOC TIANJIN BRANCH

An instance selection algorithm based on local coulomb force

PendingCN122433949AData setAlgorithm
The application discloses an instance selection algorithm based on local Coulomb force, and relates to the technical field of data preprocessing, which comprises the following steps: calculating the local density of each data point in a given data set; mapping the calculated local density to the amount of electric charge; calculating the local resultant force of each data point on its reverse neighbors based on a Coulomb force model; defining and calculating the change rate difference of the local resultant force; detecting boundary points based on the change rate difference; selecting the detected boundary points and performing random sampling; and using the selected boundary points and the randomly sampled data to jointly construct a compressed training set. The application quantifies the change rate difference of the force of the data points by using the Coulomb force model, accurately identifies the boundary points, and fuses the random sampling to construct a compressed training set with high quality and high robustness, thereby significantly improving the data efficiency.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER

Model reasoning service judgment system and method based on intention engine

The invention discloses a model reasoning service judgment system and method based on an intention engine, which are used for sequentially completing service mode selection, model instance selection and routing execution, result output and closed-loop updating of strategy parameters by taking request characteristics and a system resource state as input for each reasoning request. According to the method, mechanisms such as request-level dual-mode switching, semantic and resource joint judgment, multi-dimensional result judgment and metadata-based closed-loop learning are integrated in the same edge inference system, so that the edge multi-model inference system can consider inference quality and resource utilization efficiency while ensuring a service level target.
Owner:SICHUAN JIEHONG INTELLIGENT TECH CO LTD

Cache-assisted service contact instance selection for computing-aware traffic steering networks

In a computing-aware traffic steering (CATS) network, such as those conforming to an IETF proposal, a service contact instance for a requested service is selected based on at least cache metrics associated with data cached at one or more egress nodes of the CATS network. In some embodiments, the selection is also based on compute and network metrics. In one implementation, the selection is based only on cache metrics unless that selection is too costly in terms of compute and / or network load. In that case, the selection is based on the compute and network metrics. In this way, cache metrics are prioritized over compute and network metrics as long as the cache-based selection is not too costly.
Owner:NOKIA SOLUTIONS & NETWORKS OY

Noisy Data Classification Methods and User Classification Methods Based on Random Sampling Clustering

This invention discloses a noisy data classification method based on random sampling clustering, comprising: acquiring noisy data to be classified; performing random sampling processing on the acquired noisy data, selecting several processed data to construct a partial centroid set; performing iterative processing on the acquired noisy data, selecting several processed data to add to the constructed partial centroid set, constructing a centroid set; constructing weighted instances for the constructed centroid set; and selecting a weighted noise method to complete the classification of the noisy data. This invention also discloses a user classification method including the aforementioned noisy data classification method based on random sampling clustering. By processing the noisy data to be classified through random sampling, selecting an iterative processing method, and employing stratified sampling, the noisy data classification is achieved. Moreover, this invention has high classification accuracy, strong reliability, good practicality, and low algorithm complexity.
Owner:CENT SOUTH UNIV