Articles with "least square" as a keyword



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Reflector antenna shaping by regularized B‐spline in conjunction with one‐sided least square optimization

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Published in 2021 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32956

Abstract: In this paper, we have proposed to use regularized B‐spline for shaping a reflector antenna surface to realize a contoured beam for satellite applications. In order to meet fabrication constraints, this method allows the user… read more here.

Keywords: one sided; optimization; least square; regularized spline ... See more keywords
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Forecasting stock volatility process using improved least square support vector machine approach

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Published in 2019 at "Soft Computing"

DOI: 10.1007/s00500-018-03743-0

Abstract: Considering that the stock returns distribution displays leptokurtosis as well as left-skewed properties, and the returns volatility process exhibits heteroscedasticity as well as clustering effects, the asymmetric GARCH-type models with non-Gaussian distributions (AGARCH-nG) are employed… read more here.

Keywords: forecasting stock; least square; volatility process; volatility ... See more keywords
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A Least Square Based Weak Galerkin Finite Element Method for Second Order Elliptic Equations in Non-Divergence Form

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Published in 2020 at "Acta Mathematica Scientia"

DOI: 10.1007/s10473-020-0521-y

Abstract: This article is devoted to establishing a least square based weak Galerkin method for second order elliptic equations in non-divergence form using a discrete weak Hessian operator. Naturally, the resulting linear system is symmetric and… read more here.

Keywords: method second; second order; least square; weak galerkin ... See more keywords
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Phytoplankton community, structure and succession delineated by partial least square regression in Daya Bay, South China Sea

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Published in 2020 at "Ecotoxicology"

DOI: 10.1007/s10646-020-02188-2

Abstract: Daya Bay is facing the influence of human activities and nature changes, which result in phytoplankton adjusting to the changing environment. The data about environmental changes and phytoplankton were obtained from four seasonal cruises in… read more here.

Keywords: succession; daya bay; least square; phytoplankton ... See more keywords
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Improved Shapley Values Based on Players’ Least Square Contributions and Their Applications in the Collaborative Profit Sharing of the Rural E-commerce

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Published in 2021 at "Group Decision and Negotiation"

DOI: 10.1007/s10726-021-09741-2

Abstract: In this paper, we introduce several improved Shapley values for cooperative transferable utility (TU) games depending on the players’ least square contributions instead of their marginal contributions. This work is mainly enlightened by the Shapley… read more here.

Keywords: improved shapley; least square; square contributions; player ... See more keywords
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Closed-Form Solution of TDOA-Based Geolocation and Tracking: A Recursive Weighted Least Square Approach

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Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-016-3785-8

Abstract: The location determination technique using time difference of arrival (TDOA) measurements has been widely used in the military and observation industry. The accuracy of geolocation estimation is a very significant problem because measurement data are… read more here.

Keywords: location; weighted least; least square; recursive weighted ... See more keywords
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Rail Detection Based on LSD and the Least Square Curve Fitting

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Published in 2021 at "International Journal of Automation and Computing"

DOI: 10.1007/s11633-020-1241-4

Abstract: It is necessary to rely on the rail gauge to determine whether the object beside the track will affect train operation safety or not. A convenient and fast method based on line segment detector (LSD)… read more here.

Keywords: curve fitting; least square; rail; square curve ... See more keywords
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Conjugate gradient and cross-correlation based least-square reverse time migration and its application

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Published in 2017 at "Applied Geophysics"

DOI: 10.1007/s11770-017-0626-9

Abstract: Although conventional reverse time migration can be perfectly applied to structural imaging it lacks the capability of enabling detailed delineation of a lithological reservoir due to irregular illumination. To obtain reliable reflectivity of the subsurface… read more here.

Keywords: reverse time; time migration; least square; migration ... See more keywords
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Interval-valued least square prenucleolus of interval-valued cooperative games and a simplified method

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Published in 2018 at "Operational Research"

DOI: 10.1007/s12351-016-0260-y

Abstract: The aim of this paper is to propose the concept of the interval-valued least square prenucleolus of interval-valued cooperative games and develop a direct and an effective simplified method for solving a special subclass of… read more here.

Keywords: interval valued; least square; interval; cooperative games ... See more keywords
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Prediction of solubility of ammonia in liquid electrolytes using Least Square Support Vector Machines

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Published in 2018 at "Ain Shams Engineering Journal"

DOI: 10.1016/j.asej.2016.08.006

Abstract: Abstract Liquid electrolytes or ionic liquids (ILs) are a new class of environmentally friendly solvents which is highly promising for refrigeration and air conditioning applications in chemical industrial processes. In this contribution, Least Square Support… read more here.

Keywords: least square; solubility ammonia; square support; liquid electrolytes ... See more keywords
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Boundary Moving Least Square method for numerical evaluation of two-dimensional elastic membrane and plate dynamics problems

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Published in 2019 at "Engineering Analysis with Boundary Elements"

DOI: 10.1016/j.enganabound.2019.08.002

Abstract: Abstract This paper discusses the Boundary Moving Least Square (BMLS) method for numerical implementation of various 2-D elasticity membrane and plate dynamics problems. The proposed technique is an amalgamation of boundary collocation meshless method and… read more here.

Keywords: moving least; plate dynamics; method; least square ... See more keywords