Results 11 to 20 of about 1,241,382 (276)
Investigating the Efficiency of the 1/N Model in Portfolio Selection [PDF]
تحقیقات مالی, 2021 Objective: Since Markowitz's (1952) pioneering work on a single-period investment model, mean-variance portfolio optimization problem has become a cornerstone of investment management in both academic and industrial fields.
Reza Raei, Saeed Bajalan, Alireza Ajam
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Monitoring of aerological risks of accidents in coal mines
Горные науки и технологии, 2023 The assessment and management of aerological risks in coal mine accidents are based on the development of a data analytics system that hosts design values for various parameters and subsystems related to coal mines, as well as the real-time monitoring of
Balovtsev S. V.
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Special Matrices, 2020 We correct an error in the original Lemma 3.4 in our paper “Achievable Multiplicity partitions in the IEVP of a graph”’ [Spec. Matrices 2019; 7:276-290.]. We have re-written Section 3 accordingly.
Adm Mohammad +5 more
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Library Services Quality Assessment in Allameh Tabataba'i University Using The Libeb-Kuala Model [PDF]
بازیابی دانش و نظامهای معنایی, 2017 Assessing the quality of the central library servicesinAllameh Tabataba’i University and identifying the Libqual indicators needed for improvement, are the research objectives.Methodology: The survey research method was applied according to the Libqual ...
Ali Jalalidizji, Leyla Jabari
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A minimum violations ranking method [PDF]
Optimization and Engineering, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pedings, Kathryn E. +2 more
openaire +2 more sources
IEEE Access, 2020 To improve the visual quality of noisy medical images acquired by low radiation dose imaging, medical image denoising is highly desirable for clinical disease diagnosis.
Linlin Ji, Qiang Guo, Mingli Zhang
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Guaranteed Minimum-Rank Solutions of Linear Matrix Equations via Nuclear Norm Minimization [PDF]
, 2007 The affine rank minimization problem consists of finding a matrix of minimum rank that satisfies a given system of linear equality constraints. Such problems have appeared in the literature of a diverse set of fields including system identification and ...
Benjamin Recht +4 more
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Essential sign change numbers of full sign pattern matrices
Special Matrices, 2016 A sign pattern (matrix) is a matrix whose entries are from the set {+, −, 0} and a sign vector is a vector whose entries are from the set {+, −, 0}. A sign pattern or sign vector is full if it does not contain any zero entries. The minimum rank of a sign
Chen Xiaofeng +7 more
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Achievable multiplicity partitions in the inverse eigenvalue problem of a graph
Special Matrices, 2019 Associated to a graph G is a set 𝒮(G) of all real-valued symmetric matrices whose off-diagonal entries are nonzero precisely when the corresponding vertices of the graph are adjacent, and the diagonal entries are free to be chosen.
Adm Mohammad +5 more
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Graphs with large rank numbers and rank numbers of subdivided stars
AKCE International Journal of Graphs and Combinatorics, 2020 A -ranking of a graph is a function such that if then every path contains a vertex such that . The rank number of , denoted , is the minimum such that a -ranking exists for .
Hayley Boynton +3 more
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