Results 41 to 50 of about 2,993,437 (368)
Almost Settling the Hardness of Noncommutative Determinant [PDF]
, 2011 In this paper, we study the complexity of computing the determinant of a matrix over a non-commutative algebra. In particular, we ask the question, "over which algebras, is the determinant easier to compute than the permanent?" Towards resolving this ...
Chien, Steve +3 more
core +2 more sources
Cogent Social Sciences, 2022 World economies are currently concerned about insufficient food supplies, food adulteration, and heavy reliance on manufactured foods. The study investigated the frequency of purchasing behaviors of organic honey and butter foods from the farmers’ food ...
Fasika Chekol +4 more
doaj +1 more source
What drives the rapid achievement of a funding target in crowdfunding? Evidence from China
Agricultural Economics (AGRICECON), 2020 As a novel financing mechanism, crowdfunding can raise funds provided by many people for entrepreneurs in various industries, including the agri-food industry. Achieving a funding target in the shortest time possible is a key concern.
Yaokuang Li, Junjuan Du
doaj +1 more source
High-dimensional covariance estimation by minimizing ℓ1-penalized log-determinant divergence [PDF]
, 2008 Given i.i.d. observations of a random vector X 2 R p , we study the problem of estimating both its covariance matrix ∗ , and its inverse covariance or concentration matrix ∗ = ( ∗ ) −1 .
Pradeep Ravikumar +3 more
semanticscholar +1 more source
Scandinavian Journal of Work, Environment & Health, 2016 OBJECTIVES: The aims of our study were to (i) investigate the association between rotating night shift work and blood concentrations of estradiol, testosterone and dehydroepiandrosterone sulfate (DHEAS) and (2) evaluate the role of their non-occupational
Beata Peplonska +4 more
doaj +1 more source
Journal of Information and Technology, 2016 Cloud computing (CC) is an emerging form of IT outsourcing (ITO) that requires organizations to adjust their sourcing processes. Although ITO researchers have established an extensive knowledge base on the determinant factors that drive sourcing ...
S. Schneider, A. Sunyaev
semanticscholar +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar +8 more
wiley +1 more source
Determinants of influence on the implementation of budgeting in vertically integrated structures
Економіка, управління та адміністрування, 2022 The article is devoted to the study of the reasons for insufficient application of the budgeting system in vertically integrated structures of the oil and gas industry. The author noted that the importance of budgeting is that it is not only the basis of
V.A.
doaj +1 more source
Determinant Sums for Undirected Hamiltonicity
, 2010 We present a Monte Carlo algorithm for Hamiltonicity detection in an $n$-vertex undirected graph running in $O^*(1.657^{n})$ time. To the best of our knowledge, this is the first superpolynomial improvement on the worst case runtime for the problem since
Björklund, Andreas
core +1 more source
On the determinant of quaternionic polynomial matrices and its application to system stability [PDF]
, 2008 In this paper, we propose a definition of determinant for quaternionic, polynomial matrices inspired by the well-known Dieudonne determinant for the constant case.
Pereira, Ricardo, Rocha, Paula
core +2 more sources