4,026 results for Archives Recipe Vector Vector HD

arxiv.org/abs/2008.09882v1

VAR estimators using binary measurements

In this paper, two novel algorithms to estimate a Gaussian Vector Autoregressive (VAR) model from 1-bit measurements are introduced. They are based on the Yule-Walker scheme modified to account for quantisation. The scalar case has been studied befor...

en.wikipedia.org/wiki/Vector_autoregression

Vector autoregression - Wikipedia

autoregression (VAR) is a statistical model used to capture the relationship between multiple quantities as they change over time. VAR is a type of stochastic

arxiv.org/abs/1909.08528v2

k-Relevance Vectors: Considering Relevancy Beside Nearness

This study combines two different learning paradigms, k-nearest neighbor (k-NN) rule, as memory-based learning paradigm and relevance vector machines (RVM), as statistical learning paradigm. This combination is performed in kernel space and is called...

github.com/toji/gl-matrix

toji/gl-matrix

Javascript Matrix and Vector library for High Performance WebGL apps (⭐ 5656)

arxiv.org/abs/1006.0652v1

Dubrovin's duality for $F$-manifolds with eventual identities

A vector field E on an F-manifold (M, o, e) is an eventual identity if it is invertible and the multiplication X*Y := X o Y o E^{-1} defines a new F-manifold structure on M. We give a characterization of such eventual identities, this being a problem...

arxiv.org/abs/2303.07809v2

Eventual cone invariance revisited

We consider finite-dimensional real vector spaces $X$ ordered by a closed cone $X_+$ with non-empty interior and study eventual nonnegativity of matrix semigroups $(e^{tA})_{t \ge 0}$ with respect to this cone. Our first contribution is the observa...

arxiv.org/abs/2210.00302v2

The eventual image

In a category with enough limits and colimits, one can form the universal automorphism on an endomorphism in two dual senses. Sometimes these dual constructions coincide, as in the categories of finite sets, finite-dimensional vector spaces, and comp...

arxiv.org/abs/1504.02023v3

Preconditioning techniques in frame theory and probabilistic frames

In this chapter we survey two topics that have recently been investigated in frame theory. First, we give an overview of the class of scalable frames. These are (finite) frames with the property that each frame vector can be rescaled in such a way th...

arxiv.org/abs/2309.11551v3

Demystifying the Emergence Proposal

We revisit the Emergence Proposal in the vector multiplet moduli space of type IIA N=2 supersymmetric string vacua in four dimensions, for which the string tree-level prepotential and the string one-loop correction are exactly known via mirror symmet...

arxiv.org/abs/gr-qc/0212101v2

Actions for Vacuum Einstein's Equation with a Killing Symmetry

In a space-time $M$ with a Killing vector field $ξ^a$ which is either everywhere timelike or everywhere spacelike, the collection of all trajectories of $ξ^a$ gives a 3-dimension space $S$. Besides the symmetry-reduced action from that of Einstei...

en.wikipedia.org/wiki/Direction_%28geometry%29

Direction (geometry) - Wikipedia

In geometry, direction, also known as spatial direction, vector direction or relative direction, is the common characteristic of all rays which coincide

arxiv.org/abs/1110.2201v1

Hypersurfaces with a canonical principal direction

Given a vector field $X$ in a Riemannian manifold, a hypersurface is said to have a canonical principal direction relative to $X$ if the projection of $X$ onto the tangent space of the hypersurface gives a principal direction. We give different ways...

arxiv.org/abs/1510.03385v2

Optimal ETF Selection for Passive Investing

This paper considers the problem of isolating a small number of exchange traded funds (ETFs) that suffice to capture the fundamental dimensions of variation in U.S. financial markets. First, the data is fit to a vector-valued Bayesian regression mode...

arxiv.org/abs/1806.00738v1

Contextualize, Show and Tell: A Neural Visual Storyteller

We present a neural model for generating short stories from image sequences, which extends the image description model by Vinyals et al. (Vinyals et al., 2015). This extension relies on an encoder LSTM to compute a context vector of each story from t...

arxiv.org/abs/2405.05275v2

SoMeR: Multi-View User Representation Learning for Social Media

Social media user representation learning aims to capture user preferences, interests, and behaviors in low-dimensional vector representations. These representations are critical to a range of social problems, including predicting user behaviors and...

arxiv.org/abs/1610.01997v1

Complete Nevanlinna-Pick kernels

We give a new treatment of Quiggin's and McCullough's characterization of complete Nevanlinna-Pick kernels. We show that a kernel has the matrix-valued Nevanlinna-Pick property if and only if it has the vector-valued Nevanlinna-Pick property. We give...