نتایج جستجو برای: prediction and approximation

تعداد نتایج: 16899597  

2011
Perry Groot Peter Lucas Paul van den Bosch

Forecasting of non-linear time series is a relevant problem in control. Furthermore, an estimate of the uncertainty of the prediction is useful for constructing robust controllers. Multiple-step ahead forecasting has recently been addressed using Gaussian processes, but direct implementations are restricted to small data sets. In this paper we consider multiple-step forecasting for sparse Gauss...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

جواهری , امین , سلطانی, مرتضی , هادی, محمد ,

In this work, we generalize the entanglement of three-qbit Bosonic systems beyond the single-mode approximation when one of the observers is accelerated. For this purpose, we review the effects of acceleration on field modes and quantum states. The single-mode approximation and beyond the single-mode approximation methods are introduced. After this brief introduction, the main problem of this p...

In the present article, we introduce Chlodowsky variant of $(p,q)$-Bernstein operators and compute the moments for these operators which are used in proving our main results. Further, we study some approximation properties of these new operators, which include the rate of convergence using usual modulus of continuity and also the rate of convergence when the function $f$ belongs to the class Li...

Ali Shakiba, Bijan Davvaz, MohammadReza Hooshmandasl Seyed Abolfazl Shahzadeh Fazeli

In this paper, we study the concept of S-approximation spaces in fuzzy set theory and investigate its properties. Along introducing three pairs of lower and upper approximation operators for fuzzy S-approximation spaces, their properties under different assumptions, e.g. monotonicity and weak complement compatibility are studied. By employing two thresholds for minimum acceptance accuracy and m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده مهندسی 1389

abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

Journal: :Mathematics and Computers in Simulation 2011
Eduardo Sáenz-de-Cabezón L. Javier Hernández M. Teresa Rivas Esteban García-Ruiz Vicente Marco Ignacio Pérez-Moreno F. Javier Sáenz-de-Cabezón

A new procedure based on partition of the unity has been developed to construct spatial approximation-prediction functions for discrete density functions. This Partition of the Unity Procedure (PUP) provides a family of approximation-prediction functions which depends on several parameters. In order to find the best function we have considered error estimators induced by the Vietoris simplicial...

Journal: :Annals of Mathematics and Artificial Intelligence 2023

Deep Learning predictions with measurable confidence are increasingly desirable for real-world problems, especially in high-risk settings. The Conformal Prediction (CP) framework is a versatile solution that guarantees maximum error rate given minimal constraints [1]. In this paper, we propose novel conformal loss function approximates the traditionally two-step CP approach single step. By eval...

Journal: :Frontiers in Applied Mathematics and Statistics 2021

The problem of real time prediction blood glucose (BG) levels based on the readings from a continuous monitoring (CGM) device is great importance in diabetes care, and therefore, has attracted lot research recent years, especially machine learning. An accurate with 30, 60, or 90 min horizon potential saving millions dollars emergency care costs. In this paper, we treat as one function approxima...

1999
Ahmet Ademoglu Michael E. Brandt Tamer Demiralp

The linear theory of prediction is capable of performing long term forecasting when the observed time series is linear. For the chaotic signals, where linear modeling techniques are insufficient, nonlinear approximation theory can be used effectively for predicting. Long-term prediction however, is always difficult to achieve for such signals because of the amplification of errors in each predi...

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