Results 91 to 100 of about 495,795 (215)

Vector Space Model Anonymization

open access: yes, 2013
The vector space model is a document set representation widely used in information retrieval and text mining. When we are dealing with confidential documents the use of this model should be restricted in order to preserve the confidentiality and anonymity of the original documents.
Daniel Abril   +2 more
openaire   +2 more sources

A maximal theorem for holomorphic semigroups on vector-valued spaces. [PDF]

open access: yes, 2010
Suppose that ...
Doust, Ian   +2 more
core  

Production equilibria [PDF]

open access: yes
This paper studies production economies in a commodity space that is an ordered locally convex space. We establish a general theorem on the existence of equilibrium without requiring that the commodity space or its dual be a vector lattice.
Monique Florenzano   +2 more
core  

The use of the Poynting vector in interpreting ULF waves in magnetospheric waveguides

open access: yes, 2015
T.E. would like to thank STFC for financial support for a doctoral training grant. Date of Acceptance: 04/12/2014We numerically model ultralow frequency (ULF) waves in the magnetosphere assuming an ideal, low-beta inhomogeneous plasma waveguide.
T. Elsden   +5 more
core   +1 more source

Spatial Time-Series Modeling: A review of the proposed methodologies [PDF]

open access: yes
This paper discusses three modelling techniques, which apply to multiple time series data that correspond to different spatial locations (spatial time series).
Yiannis Kamarianakis, Poulicos Prastacos
core  

alpha-Topological Vector Spaces

open access: yesHacettepe Journal of Mathematics and Statistics, 2017
Summary: The notion of \(\alpha\)-topological vector space is introduced and several properties are studied. A~complete comparison between this class and the class of topological vector spaces is presented. In particular, \(\alpha\)-topological vector spaces are shown to be independent from topological vector spaces. Finally, a sufficient condition for
openaire   +4 more sources

Fast Filtering and Smoothing for Multivariate State Space Models

open access: yes
This paper gives a new approach to diffuse filtering and smoothing for multivariate state space models. The standard approach treats the observations as vectors while our approach treats each element of the observational vector individually.
Koopman, S.J.M., Durbin, J.
core  

Filaments of Meaning in Word Space [PDF]

open access: yes, 2008
Word space models, in the sense of vector space models built on distributional data taken from texts, are used to model semantic relations between words.
Holst, Anders   +2 more
core  

A General Representation Theorem for Integrated Vector Autoregressive Processes [PDF]

open access: yes
We study the algebraic structure of an I(d) vector autoregressive process, where d is restricted to be an integer. This is useful to characterize its polynomial cointegrating relations and its moving average representation, that is to prove a version of ...
Massimo Franchi
core  

Inducted currents analysis in multiply connected conductors using reluctance – resistance networks

open access: yes, 2009
The paper develops a reluctance-resistance network (RRN) formulation for determining the induced current distributions in a 3D space of multiply connected conducting systems. The proposed method has been applied to solve Problem No.
Rafal M. Wojciechowski   +6 more
core   +1 more source

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