Results 241 to 250 of about 6,212,625 (297)
Some of the next articles are maybe not open access.
Perturbation Analyses for the QR Factorization
SIAM Journal on Matrix Analysis and Applications, 1997Summary: This paper gives perturbation analyses for \(Q_1\) and \(R\) in the QR factorization \(A=Q_1R\), \(Q_1^TQ_1=I\) for a given real \(m\times n\) matrix \(A\) of rank \(n\) and general perturbations in \(A\) which are sufficiently small in norm. The analyses more accurately reflect the sensitivity of the problem than previous such results.
Chang, Xiao-Wen +2 more
openaire +2 more sources
Scandinavian Journal of Psychology, 1962
Werdelin, I. Synthesis of factor analyses. I. The theoretical background. Scand. J. Psychol., 1962, 3, 143–154.—When performing a series of factor analyses, we must be able to compare the different solutions. From a discussion of mathematical invariance theory, a number of assumptions are deduced, which are necessary when we perform a series of ...
openaire +2 more sources
Werdelin, I. Synthesis of factor analyses. I. The theoretical background. Scand. J. Psychol., 1962, 3, 143–154.—When performing a series of factor analyses, we must be able to compare the different solutions. From a discussion of mathematical invariance theory, a number of assumptions are deduced, which are necessary when we perform a series of ...
openaire +2 more sources
Factor analysed hidden Markov models
IEEE International Conference on Acoustics Speech and Signal Processing, 2002This paper presents a general form of acoustic model for speech recognition. The model is based on an extension to factor analysis where the low dimensional subspace is modelled with a mixture of Gaussians hidden Markov model (HMM) and the observation noise by a Gaussian mixture model.
A-V.I. Rosti, M.J.F. Gales
openaire +2 more sources
The Journal of Psychology, 1966
(1966). Factors and Factor Analyses. The Journal of Psychology: Vol. 64, No. 2, pp. 159-166.
openaire +1 more source
(1966). Factors and Factor Analyses. The Journal of Psychology: Vol. 64, No. 2, pp. 159-166.
openaire +1 more source
Factor Analyses of Format Frequencies
The Journal of the Acoustical Society of America, 1971The exact relationship between the phonetic quality of a vowel and its formant frequencies has never been stated, because it has not been possible to account for the variations due to the personal quality of a speaker. We have analyzed the fundamental and first three formant frequencies of the eight primary cardinal vowels as spoken by 11 phoneticians ...
Mona Lindau +2 more
openaire +1 more source
Refined Error Analyses of Cholesky Factorization
SIAM Journal on Numerical Analysis, 1983This paper concentrates on the practical Cholesky process for solving positive definite symmetric systems of linear equations in standard floating-point arithmetic. Two self-contained round-off analyses are presented, which lead to novel a posteriors error bounds (of practical use) and to refined a priori results (of more theoretical significance ...
openaire +1 more source
A FACTOR MODEL FOR ANALYSING CHANGE
British Journal of Mathematical and Statistical Psychology, 1973This paper develops a model for factor analysing scores on n tests administered to N persons on p separate occasions.
openaire +1 more source
Factor Analyses of the Family Assessment Device
Family Process, 1999The Family Assessment Device (FAD) operationalizes the McMaster Model of Family Functioning, which has been used in numerous studies, translated into seven languages, and is regarded as one of the most researched family assessment tools available. However, exploratory and confirmatory factor analyses using the 7‐by‐7 matrix of subscale correlations ...
T A, Ridenour, J G, Daley, W, Reich
openaire +2 more sources