Results 111 to 120 of about 86,663 (296)

Coherent Forecasting of Realized Volatility

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT The QLIKE loss function is the stylized favorite of the literature on volatility forecasting when it comes to out‐of‐sample evaluation and the state of the art model for realized volatility (RV) forecasting is the HAR model, which minimizes the squared error loss for in‐sample estimation of the parameters.
Marius Puke, Karsten Schweikert
wiley   +1 more source

Inverse problems in covariate data analysis

open access: yesFrontiers in Applied Mathematics and Statistics
The fact that Pearson's correlation coefficient and effect size are perspective functions of covariance parameters demonstrates that how covariance is defined is one of the most important issues in data analysis.
Stanley Luck
doaj   +1 more source

Mathematical competencies in a new Ukrainian school – appealing troubleshooting

open access: yesФілософія освіти, 2019
The article gives a brief description and results of the study of the Lviv region teachers of mathematics opinion on the possibility and necessity of a competent approach to the formation of the content of mathematical education in the new Ukrainian ...
Inna Belinskaya, Oleh Hirnyi
doaj   +1 more source

How Is FinTech Shaping Household Portfolio Behaviour?

open access: yesInternational Journal of Finance &Economics, EarlyView.
ABSTRACT This paper examines how FinTech adoption influences household portfolio allocation across major advanced economies. Using a flow‐of‐funds framework and the Almost Ideal Demand System (AIDS), we model household demand for currency, deposits, loans, debt securities, and equity in the United States, United Kingdom, Euro Area, Japan and Australia.
Victor Murinde, Athina Petropoulou
wiley   +1 more source

Robust Tests of Forecast Accuracy for Factor‐Augmented Regressions With an Application to the Novel EA‐MD‐QD Dataset

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT We present four novel tests of equal predictive accuracy and encompassing á Pitarakis (2023, 2025) for factor‐augmented regressions. Factors are estimated using cross‐section averages (CAs) of grouped series and our theoretical findings are empirically relevant: asymptotic normality, robustness to an overspecification of the number of factors,
Alessandro Morico, Ovidijus Stauskas
wiley   +1 more source

Symbolic Analysis and Verification of Hybrid Post-Quantum TLS 1.2

open access: yesIEEE Access
Transport Layer Security (TLS) is a fundamental protocol for securing communications over untrusted networks. With the rising threat of quantum computing, Amazon Web Services (AWS) proposed Hybrid Post-Quantum (PQ) TLS, an extended version of TLS 1.2 ...
Duong Dinh Tran   +3 more
doaj   +1 more source

The use of sequencing information in software specification for verification [PDF]

open access: yes, 1983
Software requirements specifications, virtual machine definitions, and algorithmic design all place constraints on the sequence of operations that are permissible during a program's execution.
Osterweil, Leon J., Taylor, Richard N.
core   +1 more source

Algebraic Techniques of System Specification

open access: yesIrish Mathematical Society Bulletin, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Colourings of Uniform Group Divisible Designs and Maximum Packings

open access: yesJournal of Combinatorial Designs, EarlyView.
ABSTRACT A weak c $c$‐colouring of a design is an assignment of colours to its points from a set of c $c$ available colours, such that there are no monochromatic blocks. A colouring of a design is block‐equitable, if for each block, the number of points coloured with any available pair of colours differ by at most one.
Andrea C. Burgess   +6 more
wiley   +1 more source

Assessment of Potential Sources of Variability on the Analytical Performance of a Circulating Tumor DNA Minimal Residual Disease Test for B‐Cell Lymphomas

open access: yesJournal of Clinical Laboratory Analysis, EarlyView.
Laboratory tests must exhibit robustness to common sources of test variability, particularly for tests with the potential to inform treatment decisions. This study presents data that shows that a phased variant enrichment and detection sequencing (PhasED‐Seq)‐based circulating tumor DNA minimal residual disease (ctDNA‐MRD) test is robust, with results ...
Nina Klimova   +7 more
wiley   +1 more source

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