Results 31 to 40 of about 6,215,927 (306)
Nonconvex Low Tubal Rank Tensor Minimization
IEEE Access, 2019 In the sparse vector recovery problem, the L0-norm can be approximated by a convex function or a nonconvex function to achieve sparse solutions. In the low-rank matrix recovery problem, the nonconvex matrix rank can be replaced by a convex function or a ...
Yaru Su, Xiaohui Wu, Genggeng Liu
doaj +1 more source
Reduced-Rank MMSE Detection in Space-Time Coded Space-Division Multiple-Access Systems
, 2006 A multiple-input multiple-output (MIMO) space-division multiple-access (SDMA) system is presented and investigated, when the space-time block coded (STBC) user signals are transmitted over Rayleigh fading channels. In the proposed SDMA system each mobile
Yang, Lie-Liang
core +2 more sources
Capacity and Error Performance of Reduced-Rank Transmitter Multiuser Preprocessing Based on Minimum Power Distortionless Response [PDF]
, 2008 In this contribution we first derive a transmitter multiuser preprocessing (TMP) scheme for a general multiuser multiple-input-multiple-output (MIMO) system based on the minimum power distortionless response (MPDR) criterion, which minimizes the power in
Yang, Lie-Liang, Lie-Liang Yang
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Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari +5 more
wiley +1 more source
Determination of the rank of an integration lattice [PDF]
, 2006 The continuing and widespread use of lattice rules for high-dimensional numerical quadrature is driving the development of a rich and detailed theory.
Joe, Stephen, Lyness, J.N.
core +1 more source
A Rank-Based Assignment Lottery for an Assignment Problem
AppliedMathFor a traditional assignment problem with the same number of objects and agents, we introduce a new assignment lottery based on the notion of rank and analyze some of its properties.
Claudia Meo
doaj +1 more source
Reliability of autoregressive error models as post-processors for probabilistic streamflow forecasts [PDF]
Advances in Geosciences, 2011 In this study, the reliability of different versions of autoregressive error models as post-processors for probabilistic streamflow forecasts is evaluated. Rank histograms and reliability indices are used as performance measures.
M. Morawietz, C.-Y. Xu, L. Gottschalk
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Projection onto the Set of Rank-Constrained Structured Matrices for Reduced-Order Controller Design
Algorithms, 2022 In this paper, we propose an efficient numerical computation method of reduced-order controller design for linear time-invariant systems. The design problem is described by linear matrix inequalities (LMIs) with a rank constraint on a structured matrix ...
Masaaki Nagahara, Yu Iwai, Noboru Sebe
doaj +1 more source
The minimum rank problem: A counterexample
Linear Algebra and its Applications, 2008 We provide a counterexample to a recent conjecture that the minimum rank of every sign pattern matrix can be realized by a rational matrix. We use one of the equivalences of the conjecture and some results from projective geometry. As a consequence of the counterexample, we show that there is a graph for which the minimum rank over the reals is ...
Kopparty, Swastik, Bhaskara Rao, K.P.S.
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background The Standards for Psychosocial Care for Children with Cancer and Their Families guide the provision of comprehensive psychosocial care. Parallel to research characterizing implementation of the Standards from the perspective of providers, this study examines implementation of the Standards from the perspective of parents of youth ...
Emily M. Pariseau +8 more
wiley +1 more source