Výsledky vyhľadávania - "STOCHASTIC models"

Stage‐Wise Stochastic Deep Learning Inversion Framework for Subsurface Sedimentary Structure Identification Autor Zhan, Chuanjun, Dai, Zhenxue, Soltanian, Mohamad Reza, Zhang, Xiaoying

“…The stochastic models and deep‐learning models are the two most commonly used methods for subsurface sedimentary structures identification. The results from…”
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Análisis de volatilidad de los precios de cierre de la acción de ECOPETROL 2016-2018 Autor Leguizamón, Adriana, Maca, Diego

“…In this paper a modeling of the time series corresponding to the daily closing price of the Ecopetrol share between 2016 and 2018 is made. The methodology used…”
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Retracted: Enriching the value‐at‐risk framework to ensemble empirical mode decomposition with an application to the European carbon market Autor Zhu, Bangzhu, Wang, Ping, Chevallier, Julien, Wei, Yi‐Ming

“…Unlike common financial markets, the European carbon market is a typically heterogeneous market, characterised by multiple timescales and affected by extreme…”
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Regularization techniques for inhomogeneous (spatial) point processes intensity and conditional intensity estimation Autor Coeurjolly, Jean-Francois, Ba, Ismaïla, Choiruddin, Achmad

“…Point processes are stochastic models generating interacting points or events in time and/or space. Among characteristics of these models, first-order…”
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Aplicando a teoria do valor extremo ao cálculo de risco de índices setoriais da B31 Autor Bressan, Rafael, de Souza, Daniel Augusto, de Amarante, Adriano

“…Este artigo faz um comparativo entre dois modelos univariados para estimaçao de Valor em Risco (VaR) para seis índices de açöes calculados pela B3. Os modelos…”
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Vehicle Speed Prediction Using a Markov Chain With Speed Constraints Autor Shin, Jaewook, Sunwoo, Myoungho

“…Modern vehicles are designed to improve fuel consumption while satisfying emissions regulations. As a result, powertrains are becoming increasingly complex and…”
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A 3D Geometry-Based THz Channel Model for 6G Ultra Massive MIMO Systems Autor Yuan, Yuan, He, Ruisi, Ai, Bo, Ma, Zhangfeng, Miao, Yang, Niu, Yong, Zhang, Jiayi, Chen, Ruifeng, Zhong, Zhangdui

“…In this paper, a 3D geometry-based double-spherical terahertz (THz) channel model is proposed for ultra massive multiple-input multiple-output (MIMO)…”
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Shrinking the cross-section Autor Kozak, Serhiy, Nagel, Stefan, Santosh, Shrihari

“…We construct a robust stochastic discount factor (SDF) summarizing the joint explanatory power of a large number of cross-sectional stock return predictors…”
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TROT: A Three-Edge Ring Oscillator Based True Random Number Generator With Time-to-Digital Conversion Autor Grujic, Milos, Verbauwhede, Ingrid

“…This paper introduces a new true random number generator (TRNG) based on a three-edge ring oscillator. Our design uses a new technique with a time-to-digital…”
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Uncertainty-resistant stochastic MPC approach for optimal operation of CHP microgrid Autor Zhang, Yan, Meng, Fanlin, Wang, Rui, Kazemtabrizi, Behzad, Shi, Jianmai

“…The combined heat and power (CHP) microgrid can work both effectively and efficiently to provide electric and thermal power when an appropriate schedule and…”
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Area-heterogeneity tradeoff and the diversity of ecological communities Autor Allouche, Omri, Kalyuzhny, Michael, Moreno-Rueda, Gregorio, Pizarro, Manuel, Kadmon, Ronen

“…For more than 50 y ecologists have believed that spatial heterogeneity in habitat conditions promotes species richness by increasing opportunities for niche…”
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Quantifying the evolution of individual scientific impact Autor Sinatra, Roberta, Wang, Dashun, Deville, Pierre, Song, Chaoming, Barabási, Albert-László

“…Despite the frequent use of numerous quantitative indicators to gauge the professional impact of a scientist, little is known about how scientific impact…”
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A bimodal burst energy distribution of a repeating fast radio burst source Autor Li, D., Wang, P., Zhu, W. W., Zhang, B., Zhang, X. X., Duan, R., Zhang, Y. K., Feng, Y., Tang, N. Y., Chatterjee, S., Cordes, J. M., Cruces, M., Dai, S., Gajjar, V., Hobbs, G., Jin, C., Kramer, M., Lorimer, D. R., Miao, C. C., Niu, C. H., Niu, J. R., Pan, Z. C., Qian, L., Spitler, L., Werthimer, D., Zhang, G. Q., Wang, F. Y., Xie, X. Y., Yue, Y. L., Zhang, L., Zhi, Q. J., Zhu, Y.

“…The event rate, energy distribution and time-domain behaviour of repeating fast radio bursts (FRBs) contain essential information regarding their physical…”
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Evaluating Contextual Variables Affecting Productivity Using Data Envelopment Analysis Autor Banker, Rajiv D, Natarajan, Ram

“…A DEA-based stochastic frontier estimation framework is presented to evaluate contextual variables affecting productivity that allows for both one-sided…”
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From Predictive to Prescriptive Analytics Autor Bertsimas, Dimitris, Kallus, Nathan

“…We combine ideas from machine learning (ML) and operations research and management science (OR/MS) in developing a framework, along with specific methods, for…”
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A mean field view of the landscape of two-layer neural networks Autor Mei, Song, Montanari, Andrea, Nguyen, Phan-Minh

“…Multilayer neural networks are among the most powerful models in machine learning, yet the fundamental reasons for this success defy mathematical…”
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Stochastic Community Assembly: Does It Matter in Microbial Ecology? Autor Zhou, Jizhong, Ning, Daliang

“…Understanding the mechanisms controlling community diversity, functions, succession, and biogeography is a central, but poorly understood, topic in ecology,…”
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Fourier Plane-Wave Series Expansion for Holographic MIMO Communications Autor Pizzo, Andrea, Sanguinetti, Luca, Marzetta, Thomas L.

“…Imagine a MIMO communication system that fully exploits the propagation characteristics offered by an electromagnetic channel and ultimately approaches the…”
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A Novel Nonstationary 6G UAV-to-Ground Wireless Channel Model With 3-D Arbitrary Trajectory Changes Autor Chang, Hengtai, Wang, Cheng-Xiang, Liu, Yu, Huang, Jie, Sun, Jian, Zhang, Wensheng, Gao, Xiqi

“…In order to provide reliable and efficient connections between unmanned aerial vehicles (UAVs) and ground stations (GSs), realistic UAV-to-ground channel…”
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The impact of flexibility and redundancy on improving supply chain resilience to disruptions Autor Kamalahmadi, Masoud, Shekarian, Mansoor, Mellat Parast, Mahour

“…This paper examines the relative impact on supply chain responsiveness of adding flexibility and redundancy. We seek to investigate the effectiveness of…”
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