Results 71 to 80 of about 3,063 (228)

Density‐Valued ARMA Models by Spline Mixtures

open access: yesJournal of Time Series Analysis, EarlyView.
ABSTRACT This paper proposes a novel framework for modeling time series of probability density functions by extending autoregressive moving average (ARMA) models to density‐valued data. The method is based on a transformation approach, wherein each density function on a compact domain [0,1]d$$ {\left[0,1\right]}^d $$ is approximated by a B‐spline ...
Yasumasa Matsuda, Rei Iwafuchi
wiley   +1 more source

Enumeration of Corners in Tree-like Tableaux [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2016
In this paper, we confirm conjectures of Laborde-Zubieta on the enumeration of corners in tree-like tableaux and in symmetric tree-like tableaux. In the process, we also enumerate corners in (type $B$) permutation tableaux and (symmetric) alternative ...
Alice L. L. Gao   +3 more
doaj   +1 more source

Symmetries of value

open access: yesNoûs, EarlyView.
Abstract Standard decision theory ranks risky prospects by their expected utility. This ranking does not change if the values of all possible outcomes are uniformly shifted or dilated. Similarly, if the values of the outcomes are negated, the ranking of prospects by their expected utility is reversed.
Zachary Goodsell
wiley   +1 more source

Operators of equivalent sorting power and related Wilf-equivalences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2013
We study sorting operators $\textrm{A}$ on permutations that are obtained composing Knuth's stack sorting operator \textrmS and the reverse operator $\textrm{R}$, as many times as desired.
Michael Albert, Mathilde Bouvel
doaj   +1 more source

Bijections and the Riordan group

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

A New Hilbert's Hotel Argument Against Past‐Eternalism

open access: yesAnalytic Philosophy, EarlyView.
ABSTRACT This paper offers a new formulation of the “Hilbert's Hotel Argument” (HHA) which is superior to existing formulations because it (1) demonstrates that HH is logically impossible in the concrete world, (2) takes into account the need to consider the assumptions of HHA, and (3) offers a reply to an important objection concerning the validity of
Andrew Ter Ern Loke, Eli Haitov
wiley   +1 more source

A bijection between irreducible k-shapes and surjective pistols of height $k-1$ [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
This paper constructs a bijection between irreducible $k$-shapes and surjective pistols of height $k-1$, which carries the "free $k$-sites" to the fixed points of surjective pistols.
Ange Bigeni
doaj   +1 more source

Bijective matrix algebra

open access: yesLinear Algebra and its Applications, 2006
AbstractIf A and B are square matrices such that AB=I, then BA=I automatically follows. We prove a combinatorial version of this result in the case where the entries of A and B count collections of signed, weighted objects. Specifically, we give an algorithm that transforms any given bijective proof of the identity AB=I into an explicit bijective proof
Anthony Mendes, Nicholas A. Loehr
openaire   +2 more sources

Structured Expert Elicitation of Dependence Between River Tributaries Using Nonparametric Bayesian Networks

open access: yesRisk Analysis, EarlyView.
ABSTRACT In absence of sufficient data, structured expert judgment is a suitable method to estimate uncertain quantities. While such methods are well established for individual variables, eliciting their dependence in a structured manner is a less explored field of research.
Guus Rongen   +3 more
wiley   +1 more source

Generating Bijections between HOAS and the Natural Numbers [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2010
A provably correct bijection between higher-order abstract syntax (HOAS) and the natural numbers enables one to define a ``not equals'' relationship between terms and also to have an adequate encoding of sets of terms, and maps from one term family to ...
John Tang Boyland
doaj   +1 more source

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