Results 131 to 140 of about 4,936,635 (261)
ABSTRACT News media plays an integral role in facilitating public discourse, influencing attitudes and shaping policy decisions on drugs. Negative, sensationalist or inaccurate media coverage of drugs can lead to negative or stigmatising attitudes towards people who use drugs or who are associated with drugs. This can and should be changed.
Steph Kershaw +5 more
wiley +1 more source
A Conditional Tail Expectation Type Risk Measure for Time Series
ABSTRACT We consider the estimation of the conditional expectation đŒ(Xh|X0>UX(1/p)), provided đŒ|X0|<â, at extreme levels, where (Xt)tââ€$$ {\left({X}_t\right)}_{t\in \mathbb{Z}} $$ is a strictly stationary time series, UX$$ {U}_X $$ its tail quantile function, h$$ h $$ is a positive integer and pâ(0,1)$$ p\in \left(0,1\right) $$ is such that pâ0$$ p\to ...
Yuri Goegebeur +2 more
wiley +1 more source
ABSTRACT I discuss conditions under which maximizing a proxy utility function is harmful and suggest this poses problems for applying decision theory.
Sven Neth
wiley +1 more source
Repelled Point Processes With Application to Numerical Integration
ABSTRACT We look at Monte Carlo numerical integration from a stochastic geometry point of view. While crude Monte Carlo estimators relate to linear statistics of a homogeneous Poisson point process (PPP), linear statistics of more regularly spread point processes can yield unbiased estimators with fasterâdecaying variance, and thus lower integration ...
Diala Hawat +3 more
wiley +1 more source
Sparse Minimum Redundancy Maximum Relevance for Feature Selection
ABSTRACT We propose a feature screening method that integrates both featureâfeature and featureâtarget relationships. Inactive features are identified via a penalized minimum Redundancy Maximum Relevance (mRMR) procedure, which is the continuous version of the classical mRMR penalized by a nonâconvex regularizer, and where the parameters estimated as ...
Peter Naylor +3 more
wiley +1 more source
Convergence and combinatorics of the Reverse algorithm
Abstract We study the Reverse algorithm, a multidimensional continued fraction algorithm, which is not unimodular. We show that the Reverse algorithm is ergodic and, by proving that its second Lyapunov exponent is negative, that it is a.e. exponentially convergent.
Hiroaki Ito +2 more
wiley +1 more source
On The Integral Representation of Strictly Continuous Set-Valued Maps
Let T be a completely regular topological space and C(T) be the space of bounded, continuous real-valued functions on T. C(T) is endowed with the strict topology (the topology generated by seminorms determined by continuous functions vanishing at in_nity)
Anaté K. Lakmon, Kenny K. Siggini
doaj +2 more sources
Singularity of nonâpluripolar cohomology classes
Abstract We establish a relation between Lelong numbers and the full mass property of relative nonâpluripolar products. We use this relation to prove that if the restricted volume of a big class α$\alpha$ along an effective divisor D$D$ has full mass, then the Lelong numbers of the nonâpluripolar class âšÎ±nâ1â©$\langle \alpha ^{n-1}\rangle$ at every ...
DucâBao Nguyen +2 more
wiley +1 more source
Exponential Iteration and Borel Sets
We determine the exact Borel class of the points whose iterates under $\exp(z)+a$ tend to infinity. We also prove that the sets of non-escaping Julia points for many of these functions are topologically equivalent.
openaire +2 more sources
Cauchy identities for staircase matrices
Abstract The wellâknown Cauchy identity expresses the product of terms (1âxiyj)â1${(1-{x}_{i}{y}_{j})}^{-1}$ for (i,j)$(i,j)$ indexing entries of a rectangular mĂn$m\ensuremath{\times{}}n$âmatrix as a sum over partitions λ$\lambda $ of products of Schur polynomials: sλ(x)sλ(y)${s}_{\lambda}(x){s}_{\lambda}(y)$.
Evgeny Feigin +2 more
wiley +1 more source

