Results 101 to 110 of about 5,723,408 (199)

Predicting Skytrax’s Official World Airline Star ratings from customer reviews [PDF]

open access: yes, 2011
Skytrax audits and ranks airlines internationally in its yearly ‘Official World Airline Star Ranking’. Unfortunately, its activity is severely restricted, at most covering just 30% of those airlines listed as open for review by passengers in its ...
Gilbey, Andrew, Pérezgonzález, Jose D.
core  

A convenient regression formula for predicting Skytrax’s Official World Airport Star ratings [PDF]

open access: yes, 2011
Skytrax audits and ranks airports internationally in its yearly ‘Official World Airport Star Ranking’. Unfortunately, its activity is severely restricted, at most covering just 3% of those airports listed by Skytrax as open to review by passengers in ...
Gilbey, Andrew, Pérezgonzález, Jose D.
core  

Testing gravity on large scales. The skewness of the galaxy distribution at z~1

open access: yes, 2008
We study the evolution of the low-order moments of the galaxy overdensity distribution over the redshift interval 0 ...
Abbas, U.   +56 more
core   +1 more source

Herd behaviour in Malaysian capital market: An empirical analysis [PDF]

open access: yes
This study examines the existence of herd behavior among foreign investors in the Malaysian capital market. In methodology, the study analyzes the herd behavior by estimating vector error correction (VECM) model of FPI inflows as well as FPI outflows ...
Duasa, Jarita, Kassim, Salina
core   +1 more source

European Securitisation : a GARCH model of CDO, MBS and Pfandbrief spreads [PDF]

open access: yes, 2003
Asset-backed securitisation (ABS) is an asset funding technique that involves the issuance of structured claims on the cash flow performance of a designated pool of underlying receivables.
Jobst, Andreas A.
core  

Adapting the Technology Acceptance Model to Examine the Use of Information Communication Technologies and Loneliness Among Low-Income, Older Asian Americans: Cross-Sectional Survey Analysis

open access: yesJMIR Aging
BackgroundLoneliness is a significant issue among older Asian Americans, exacerbated by the COVID-19 pandemic. Older age, lower income, limited education, and immigrant status heighten loneliness risk.
Pauline DeLange Martinez   +4 more
doaj   +1 more source

Examining Attentional Control and Processing Speed Deficits as Underlying Mechanisms of Neuropsychological Impairment in Schizophrenia [PDF]

open access: yes, 2017
Neuropsychological impairment is a key characteristic of schizophrenia (SZ), but its cognitive profile and underlying information processing mechanisms are not yet well understood.
Forte, Mayte
core   +1 more source

Improved estimation of population variance in stratified successive sampling using calibrated weights under non-response

open access: yesHeliyon
This paper introduces a new method to estimate the population variance of a study variable in stratified successive sampling over two occasions, while accounting for random non-response.
M.K. Pandey   +4 more
doaj  

Shrinkage MMSE estimators of covariances beyond the zero-mean and stationary variance assumptions [PDF]

open access: yesarXiv
We tackle covariance estimation in low-sample scenarios, employing a structured covariance matrix with shrinkage methods. These involve convexly combining a low-bias/high-variance empirical estimate with a biased regularization estimator, striking a bias-variance trade-off.
arxiv  

Conditioning Information and Variance Bounds on Pricing Kernels with Higher-Order Moments: Theory and Evidence [PDF]

open access: yes
The author develops a strategy for utilizing higher moments and conditioning information efficiently, and hence improves on the variance bounds computed by Hansen and Jagannathan (1991, the HJ bound) and Gallant, Hansen, and Tauchen (1990, the GHT bound).
Fousseni Chabi-Yo
core  

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