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1261
Learning model combined with data clustering and dimensionality reduction for short-term electricity load forecasting
Published 2025-01-01“…Here, we adapt k-means clustering for data clustering, kernel principal component analysis (kernel PCA), universal manifold approximation and projection (UMAP), and t-stochastic nearest neighbor (t-SNE) for dimensionality reduction. …”
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1262
Genetic Algorithms in Antennas and Smart Antennas Design Overview: Two Novel Antenna Systems for Triband GNSS Applications and a Circular Switched Parasitic Array for WiMax Applic...
Published 2014-01-01“…Genetic algorithms belong to a stochastic class of evolutionary techniques, whose robustness and global search of the solutions space have made them extremely popular among researchers. …”
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1263
Analysis and Simulation of Intervention Strategies against Bus Bunching by means of an Empirical Agent-Based Model
Published 2021-01-01“…Monte Carlo sampling is then performed on these two derived probability distributions to yield the stochastic dynamics of both the buses’ motion and passengers’ arrival. …”
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1264
From TORTORA to MegaTORTORA—Results and Prospects of Search for Fast Optical Transients
Published 2010-01-01“…To study short stochastic optical flares of different objects (GRBs, SNs, etc.) of unknown localizations as well as NEOs it is necessary to monitor large regions of sky with high-time resolution. …”
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1265
Financial institutions efficiency: a systematic literature review
Published 2024-12-01“…The results reveal that both parametric (Stochastic Frontier Approach) and non-parametric (Data Envelopment Analysis) models are equally utilized in estimating the efficiency of financial institutions. …”
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1266
A data-driven semi-parametric model of SARS-CoV-2 transmission in the United States.
Published 2023-11-01“…To support decision-making and policy for managing epidemics of emerging pathogens, we present a model for inference and scenario analysis of SARS-CoV-2 transmission in the USA. The stochastic SEIR-type model includes compartments for latent, asymptomatic, detected and undetected symptomatic individuals, and hospitalized cases, and features realistic interval distributions for presymptomatic and symptomatic periods, time varying rates of case detection, diagnosis, and mortality. …”
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1267
Learning a Quantum Computer's Capability
Published 2024-01-01“…Our CNN capability models obtain approximately a 1% average absolute prediction error when modeling processors experiencing both Markovian and non-Markovian stochastic Pauli errors. We also apply our CNNs to model the capabilities of cloud-access quantum computing systems, obtaining moderate prediction accuracy (average absolute error around 2–5%), and we highlight the challenges to building better neural network capability models.…”
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1268
A Time Variant Outdoor-to-Indoor Channel Model for Mobile Radio Based Navigation Applications
Published 2015-01-01“…In this paper, an outdoor-to-indoor channel model is proposed based on an extension of the geometry-based stochastic modeling approach to fulfill the requirements. …”
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1269
Impact of Irrigation Ecology on Rice Production Efficiency in Ghana
Published 2018-01-01“…Cross-sectional data was obtained from 350 rice farmers across rain fed and irrigation ecologies. Stochastic frontier analyses are used to estimate the production efficiency and endogenous treatment effect regression model is used to estimate the impact of irrigation ecology on rice production efficiency. …”
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1270
PSI Methodologies for Nuclear Data Uncertainty Propagation with CASMO-5M and MCNPX: Results for OECD/NEA UAM Benchmark Phase I
Published 2013-01-01“…Two complimentary UQ techniques have been developed thus far: (i) direct perturbation (DP) and (ii) stochastic sampling (SS). The DP technique is, first and foremost, a robust and versatile sensitivity coefficient calculation, applicable to all types of input and output. …”
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1271
Implementation of flexible DEA structure in the management of business processes
Published 2023-01-01“…In tests, the deviation from the DEA borderline can be viewed as a stochastic variable. The DEA estimate is certainly biased in finite samples (debatable statistics), while the expected value of the DEA efficiency is almost certainly the true value of the parameter in large samples (complete statistics). …”
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1272
An examination of changes in autumn Eurasian snow cover and its relationship with the winter Arctic Oscillation using 20th Century Reanalysis version 3
Published 2025-02-01“…Novel aspects are (i) analysis back to 1836, (ii) adjusting the reanalysis SC through comparison with observations, and (iii) analysing the statistical significance of the frequency of periods of significant SC–AO relationships to determine whether these connections can be distinguished from stochastic processes. Across the full span of 20CRv3, there is a small increase in mean September Eurasian SC. …”
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1273
A Trial-and-Error Method with Autonomous Vehicle-to-Infrastructure Traffic Counts for Cordon-Based Congestion Pricing
Published 2017-01-01“…Two practical properties of the cordon-based pricing are further considered in this article: the toll charge on each entry of one pricing cordon is identical; the total inbound flow to one cordon should be restricted in order to maintain the traffic conditions within the cordon area. Then, the stochastic user equilibrium (SUE) with asymmetric link travel time functions is used to assess each feasible toll pattern. …”
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1274
Innovative Framework for Historical Architectural Recognition in China: Integrating Swin Transformer and Global Channel–Spatial Attention Mechanism
Published 2025-01-01“…To gain deeper insights into the model’s decision-making process, we employed comprehensive interpretability methods including t-SNE (t-distributed Stochastic Neighbor Embedding), Grad-CAM (gradient-weighted class activation mapping), and multi-layer feature map analysis, revealing the model’s systematic feature extraction process from structural elements to material textures. …”
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1275
Transformer-Based Optimization for Text-to-Gloss in Low-Resource Neural Machine Translation
Published 2025-01-01“…The trials involve optimizing a minimal model, and our complex model with different optimizers; The findings from these trials show that both Adaptive Gradient (AdaGrad) and Adaptive Momentum (Adam) offer significantly better performance than Stochastic Gradient Descent (SGD) and Adaptive Delta (AdaDelta) in the minimal model scenario, however, Adam offers significantly better performance in the complex model optimization task. …”
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1276
A Reliable Method for Identification of Antibiotics by Terahertz Spectroscopy and SVM
Published 2020-01-01“…For dimensionality reduction, principal component analysis (PCA) and t-distributed stochastic neighbor embedding (t-SNE) were implemented, respectively. …”
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1277
Heavy-tailed flood peak distributions: what is the effect of the spatial variability of rainfall and runoff generation?
Published 2025-01-01“…This is done using a model chain consisting of a stochastic weather generator, a conceptual rainfall-runoff model, and a river routing routine. …”
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1278
Bi-level coordinated restoration for the distribution system and multi-microgrids
Published 2025-03-01“…The proposed framework is capable of finding the optimal restoration scheme provided that the autonomy of MGs is retained. The stochastic programming is leveraged to model the uncertainty of renewable energy, and the coordinated restoration framework is formulated as a bi-level mixed integer linear programming (BMILP). …”
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1279
Training and Testing Data Division Influence on Hybrid Machine Learning Model Process: Application of River Flow Forecasting
Published 2020-01-01“…This has made it more efficient in forecasting stochastic river flow behaviour compared to the other developed hybrid models.…”
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1280
A systematic literature review of aggregate production planning (APP): Social and economic perspectives
Published 2025-01-01“…Findings: The outcome shows that most of the previous studies applied mixed-integer linear programming (MILP) methods in developing the APP models while stochastic and fuzzy methods are the most common approaches to deal with uncertainties. …”
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