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Suggested Topics within your search.
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5181
A Fast Logdet Divergence Based Metric Learning Algorithm for Large Data Sets Classification
Published 2014-01-01“…It is a challenging task to classify large data sets efficiently, accurately, and robustly, as large data sets always contain numerous instances with high dimensional feature space. In order to deal with this problem, in this paper we present an online Logdet divergence based metric learning (LDML) model by making use of the powerfulness of metric learning. …”
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5182
THE EFFECT OF TIME ON TRANSPORT SERVICES OF THE INTERNATIONAL SUPPLY CHAIN
Published 2018-02-01“…The basis of the research consists of the chain substitutions’ methods and the comparison index. The problem, the developed block-scheme and algorithm of adjustment factor calculation and the traffic volume dependence. …”
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5183
MOD3NN: A Framework for Automatic Signal Modulation Detection Using 3D CNN
Published 2023-05-01“…Raw I/Q signal data exhibits a special “helical” structure that can be exploited with three-dimensional convolutions (3D convolutions) to learn spatio-temporal features from the signal for the problem of modulation recognition. …”
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5184
Building extraction method for aerial images based on DeepLabv3+ semantic segmentation
Published 2024-12-01“…It effectively avoids the problem of merged segmentation between neighboring buildings and results in more regular segmentation boundaries, enabling more accurate extraction of the building contours.…”
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5185
Classification of Real and Fake Images Using Error Level Analysis Technique and MobileNetV2 Architecture
Published 2025-05-01“…This study evaluates the contribution of ELA features in classifying authentic and forged images using the MobileNetV2 model. …”
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5186
Integration of Multivariate Beta-based Hidden Markov Models and Support Vector Machines with Medical Applications
Published 2022-05-01“…Moreover, in some applications, data may have various feature-length. We tackle this problem with Fisher Kernel. …”
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5187
Improving Performance of KNN and C4.5 using Particle Swarm Optimization in Classification of Heart Diseases
Published 2024-06-01“…Heart disease is a major problem that must be overcome for human life. In recent years, the volume of medical data related to heart disease has increased rapidly, and various heart disease data has collaborated with information technology such as machine learning to detect, predict, and classify diseases. …”
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5188
High-Level Codewords Based on Granger Causality for Video Event Detection
Published 2015-01-01“…Video event detection is a challenging problem in many applications, such as video surveillance and video content analysis. …”
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5189
A Lightweight Approach to Comprehensive Fabric Anomaly Detection Modeling
Published 2025-03-01“…In order to solve the problem of high computational resource consumption in fabric anomaly detection, we propose a lightweight network, GH-YOLOx, which integrates ghost convolutions and hierarchical GHNetV2 backbone together to capture both local and global anomaly features. …”
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5190
MATHEMATICAL MODELING OF FOURIER TRANSFORM IMAGING SPECTROMETER
Published 2015-04-01“…SFTIS mathematical modeling is performed to optimize the features of the instrument.…”
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5191
A Review on Single-Phase AC-AC Z-Source Converters
Published 2022-06-01“…Therefore, several modified or improved structures along with different control methods have been introduced to solve their problems and limitations. Based on the four features, these structures can be categorized into four groups: without magnetic coupling, with magnetic coupling, able to change the frequency, and inherent commutation. …”
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5192
Structural Redundancy Assessment of Adjacent Precast Concrete Box-Beam Bridges in Service
Published 2020-01-01“…In addition, a nonlinear FE analysis is not feasible for practitioners to use. To tackle this problem, a new simplified approach based on linear FE analysis and field load testing is introduced in this paper to address the particular structural feature and topology of adjacent precast concrete box-beam bridges for the assessment of structural redundancy. …”
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5193
Ethical Traditions of Adyghe: Genre Criteria and Main Motives
Published 2021-07-01“…It is noted that in this regard, the study of ethical traditions is one of the necessary stages in solving this problem. The main goal of the article is to determine genre features and main functions, to identify the main motives and images inherent in ethical legends. …”
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5194
Engineering Design and Application of the Autonomous-rail Rapid Transitin Yibin City
Published 2020-01-01“…In order to solve the increasing urban congestion problem, optimize the urban traffic structure and enhance the attractiveness of city, it planned seven lines, a total of 156.9 kilometers traffic network of autonomous-rail rapid transit (ART) in Yibin City of Sichuan Province. …”
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5195
Study on the Rolling Bearing Fault Diagnosis based on the Hilbert Envelope Spectrum Singular Value and IPSO-SVM
Published 2017-01-01“…For the problem that the characterization of the gear fault signal feature is difficult to extract and the structure parameters selection of support vector machine( SVM) are based on experience leads the poor precision and generalization ability of fault state recognition,a method that IPSO- SVM rolling bearing fault diagnosis based on the Hilbert envelope spectrum singular value is proposed. …”
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5196
Research on Particle Filter Video Tracking Algorithms
Published 2020-08-01“…Aiming at the problem of insufficient robustness of moving target tracking in complex scenes, a particle filter target tracking algorithm based on CNN feature extraction is proposed CNN selflearning mechanism is used to extract highlevel semantic features of objects in images Chaotic sequence variable scale firefly algorithm is introduced to improve the accuracy of target recognition A particle filter tracking algorithm combining mean shift and weight optimization is constructed to optimize the weight of particles, improve the diversity of particle sets and make video tracking more accurate The simulation results show that the proposed algorithm can effectively adapt to occlusion, illumination, violent motion and other scenes, and has good adaptability and high realtime performance to illumination change, scale change, occlusion and so on The results of comparison with seven other methods show that under the same experimental conditions, the tracking success rate and tracking accuracy of this method are 5%~40% higher than those of other methods…”
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5197
Robust Predictive Functional Control for Quadrotor Flight Systems
Published 2025-07-01“…However, PFC does not require solving a quadratic programming problem for every control loop like MPC. This feature enables PFC to be implemented in small-scale systems such as actuators, where embedding a high-performance computer is difficult. …”
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5198
RESISTANT POLYMER NANOCOMPOSITES’ DEVELOPMENT AND INVESTIGATION
Published 2018-03-01“…Materials and methods. The problem mentioned above is solved by means of the structural modification’s methods of the PCM polymer matrix and the technological process optimization of the composite materials’ synthesis. …”
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5199
Turnover tra generazioni nel settore agrario: il caso della mancata applicazione della misura PACSRG004 “Cooperazione per il ricambio generazionale”
Published 2024-12-01“…Although methodological simplifications tend to underestimate the real generational change in farming, the problem remains unresolved and requires appropriate responses that will encourage the fight against aging of agricultural sector. …”
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5200
IMM4HT:an identification method of malicious mirror website for high-speed network traffic
Published 2019-07-01“…Aiming at the problem that some information causing harm to the network environment was transmitted through the mirror website so as to bypass the detection,an identification method of malicious mirror website for high-speed network traffic was proposed.At first,fragmented data from the traffic was extracted,and the source code of the webpage was restored.Next,a standardized processing module was utilized to improve the accuracy.Additionally,the source code of the webpage was divided into blocks,and the hash value of each block was calculated by the simhash algorithm.Therefore,the simhash value of the webpage source codes was obtained,and the similarity between the webpage source codes was calculated by the Hamming distance.The page snapshot was then taken and SIFT feature points were extracted.The perceptual hash value was obtained by clustering analysis and mapping processing.Finally,the similarity of webpages was calculated by the perceptual hash values.Experiments under real traffic show that the accuracy of the method is 93.42%,the recall rate is 90.20%,the F value is 0.92,and the processing delay is 20 μs.Through the proposed method,malicious mirror website can be effectively detected in the high-speed network traffic environment.…”
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