Showing 601 - 620 results of 1,176 for search '"time series"', query time: 0.05s Refine Results
  1. 601

    Analysis of Rattleback Chaotic Oscillations by Michael Hanias, Stavros G. Stavrinides, Santo Banerjee

    Published 2014-01-01
    “…The emerging chaotic behaviour in all three cases has been studied and evaluated by the related time-series analysis and the calculation of the strange attractors’ invariant parameters.…”
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    Article
  2. 602

    Synthesis of Vibration Waves Based on Wavelet Technology by L.H. Zou, A.P. Liu, X. Ma, C. Zhang, K. Huang

    Published 2012-01-01
    “…A novel method to generate time series of vibration waves is proposed in the paper. …”
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    Article
  3. 603

    Research on Forecasting of the Compressor Geometric Variable System Based on the MAE Model by Cunjiang Xia, Yuyou Zhan, Yan Tan, Wenqing Wu

    Published 2023-01-01
    “…That is not only the first application of transformer models with a masked pretraining mechanism in time series forecasts but also taking the lead in exploring the possibility of this key system forecast. …”
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    Article
  4. 604

    The law of the single price within one country: the example of Benin by N.C.C. Vikou

    Published 2023-05-01
    “…The study noted how a shock affecting prices in one region could also affect prices in other regions of the country, due to cross-dependence. The time series of consumer prices by regions of Benin were used. …”
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    Article
  5. 605

    The Effects of Poverty on Health Outcomes in Nigeria: An ARDL Approach by Abdulrahman Abdulganiyu Idris

    Published 2023-01-01
    “…This study looks at the impact of poverty on people’s health in Nigeria. A time series data spanning 29 years, from 1991 to 2021 was used for the study. …”
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    Article
  6. 606

    Adverse Environmental Impact: A Consultant’s Perspective by Alan W. Wells, Thomas L. Englert

    Published 2002-01-01
    “…In our over 30 years of experience, we have applied most of the approaches suggested for addressing this issue, including biostatistical methods, trend analysis, time series methods, conditional mortality rate models, stock-recruitment models, equivalent adult models, and ecosystem models. …”
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    Article
  7. 607

    Transition Characteristic Analysis of Traffic Evolution Process for Urban Traffic Network by Longfei Wang, Hong Chen, Yang Li

    Published 2014-01-01
    “…We defined traffic state pattern through clustering multidimensional traffic time series using self-organizing maps and construct a pattern transition network model that is appropriate for representing and analyzing the evolution progress. …”
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    Article
  8. 608

    Empirical mode decomposition analysis of climate changes with special reference to rainfall data

    Published 2006-01-01
    “…<p>We have used empirical mode decomposition (EMD) method, which is especially well fitted for analyzing time-series data representing nonstationary and nonlinear processes. …”
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    Article
  9. 609

    Improving machine learning predictions to estimate fishing effort using vessel's tracking data by J. Samarão, A. Moreno, M.B. Gaspar, M.M. Rufino

    Published 2025-03-01
    “…Temporal resolution (ping rate) showed minimal effects on model performance, ranging from less than 2 % for intervals between 30 s (raw data with irregular time series) to 10 min (regular time series). As a post-processing step, it was concluded that replacing isolated data points with neighbouring values, significantly enhanced the detection of fishing events, with improvements ranging from 80 % to 250 %, depending on the model.In conclusion, this study presents a straightforward procedure for selecting a machine learning method and enhancing its power of classification using simple procedures. …”
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    Article
  10. 610

    A population-based study on the burden of hospitalized pediatric pneumococcal disease in Taiwan before and after the introduction of 13-valent pneumococcal conjugate vaccine into t... by Ting-An Yen, Jhong-Lin Wu, Chi-Chuan Wang, Ling-Ya Huang, See-Hwee Yeo, Dony Patel, Cindy Thiow Koon Lim, Hung-Wei Lin, Eriko Yamada, Isaya Sukarom

    Published 2025-02-01
    “…Incidence time trends were assessed with interrupted time series analyses. Results 1,284 invasive pneumococcal disease episodes, 25,074 non-bacteremic pneumococcal pneumonia episodes, and 23,139 acute otitis media episodes were identified. …”
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    Article
  11. 611

    Reconstructing the temperature degree of the warm seasons through Quercus persica tree rings in Zagros forests Dena region by Hossein zarean

    Published 2015-09-01
    “…After cross dating stage, to eliminate non-climate effects, May to September temperature average and tree rings time series were standardized. The Residual Chronology (RES) calculated by ARSTAN was calibrated with temperature degree of the period 1882-2011 and its positive and significant correlation with the width of growth rings was confirmed. …”
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    Article
  12. 612

    Hybrid Model for Stock Market Volatility by Kofi Agyarko, Nana Kena Frempong, Eric Neebo Wiah

    Published 2023-01-01
    “…The proposed BSGARCH (1, 1) model was applied to simulated data and two real financial time series data (NASDAQ 100 and S&P 500). The outcome was then compared to the outcomes of the GARCH (1, 1), EGARCH (1, 1), GJR-GARCH (1, 1), and APARCH (1, 1) with different error distributions (ED) using the mean absolute percentage error (MAPE), the root mean square error (RMSE), Theil’s inequality coefficient (TIC) and QLIKE. …”
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  13. 613

    Demand and consumption patterns of banana in Tanzania by William George

    Published 2025-02-01
    “…Cross-sectional data from 2021 and time series data from 2000 to 2021 were used. Dynamic econometric models, including the Constant Elasticity of Demand framework and log-linear regression, assess the impact of price, income, and consumer preferences on banana demand. …”
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    Article
  14. 614

    Impact of antibiotics, iron oxide, and sodium sulfate on microbial community composition in laboratory-built municipal solid waste microcosms. by Judy Malas, Sarah C Khoury, Michael Tanzillo, Gracie A Fischer, Jean E Bogner, D'Arcy R Meyer-Dombard

    Published 2025-01-01
    “…To circumvent the challenge of MSW heterogeneity, we conducted a 65-day time series study on simulated MSW microcosms to assess microbiome changes using 16S rRNA sequencing in response to 1) Fe(OH)3 and 2) Na2SO4 to represent redox active components of C&D waste as well as 3) antibiotics. …”
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    Article
  15. 615

    A Deep Learning Anomaly Detection Framework for Satellite Telemetry with Fake Anomalies by Yakun Wang, Jianglei Gong, Jie Zhang, Xiaodong Han

    Published 2022-01-01
    “…Then, we use the Long Short-Term Memory (LSTM), a deep learning method, to model the multivariable time-series data, and a Gaussian model to detect anomalies. …”
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  16. 616

    Forecasting tourist in-flow in South East Asia: A case of Singapore by Manoj Kumar, Seema Sharma

    Published 2016-01-01
    “…Dickey Fuller, KPSS, HEGY, Ljung-Box, Box-Pierce etc.) were applied on the time series for adequacy of best model to fit, residual autocorrelation analysis and for the accuracy of the prediction.…”
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    Article
  17. 617

    Spectrum Sensing in Very Low SNR Environment Using Multi-Scale Temporal Correlation Perception with Residual Attention by Song Hong, Weiqiang Xu

    Published 2025-01-01
    “…In this paper, considering the time-varying characteristics and the dependence on various timescales within a time series of samples composed of in-phase (I) and quadrature (Q) component signals, we propose a multi-scale time-correlated perceptual attention model named MSTC-PANet. …”
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    Article
  18. 618

    Multidimensional Determinants of National Food Security in Azerbaijan: an Application of the ARDL Approach by Ragif Huseynov

    Published 2019-12-01
    “…The empirical analysis draws from nationally representative time series data over the period 1991 to 2018, taken from FAO and WDI. …”
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  19. 619

    Short-Term Load Forecasting in Power Systems Based on the Prophet–BO–XGBoost Model by Shuang Zeng, Chang Liu, Heng Zhang, Baoqun Zhang, Yutong Zhao

    Published 2025-01-01
    “…This approach employs the XGBoost model to interpret the nonlinear relationships between features and loads and integrates the Prophet model for label prediction from a time-series viewpoint. Given that hyperparameters substantially impact XGBoost’s performance, this study leverages Bayesian optimization (BO) to refine these parameters. …”
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  20. 620

    Refined Composite Multivariate Multiscale Fractional Fuzzy Entropy: Measuring the Dynamical Complexity of Multichannel Financial Data by Huiqin Chu, Zhiyong Wu, Wei Zhang

    Published 2021-01-01
    “…Refined composite multivariate multiscale fractional fuzzy entropy (RCmvMFFE), which aims to sensitively discriminate different short noisy multichannel financial data, is proposed as a new measure to quantify the complexity dynamics of multichannel time series in this work. To better comprehend the RCmvMFFE measure, the dynamical complexity analyses of multichannel synthetic dataset are comparatively studied with multivariate multiscale fuzzy entropy (mvMFE), refined composite multivariate multiscale fuzzy entropy (RCmvMFE), and refined composite multivariate multiscale fractional fuzzy entropy (RCmvMFFE). …”
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