Results 51 to 60 of about 655,816 (301)

The Granger-Johansen representation theorem for integrated time series on Banach space [PDF]

open access: yes
We prove an extended Granger–Johansen representation theorem (GJRT) for finite or infinite order integrated autoregressive time series on Banach space. We assume only that the resolvent of the autoregressive polynomial for the series is analytic on and ...
John Boland   +4 more
core   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Fractional integration and cointegration in US financial time series data

open access: yes, 2011
This paper examines several US monthly financial time series data using fractional integration and cointegration techniques. The univariate analysis based on fractional integration aims to determine whether the series are I(1) (in which case markets ...
Gil-Alana, Luis A.   +5 more
core   +1 more source

Time Series Analysis [PDF]

open access: yes
We provide a concise overview of time series analysis in the time and frequency domains, with lots of references for further reading.time series analysis, time domain, frequency ...
Marc Nerlove   +2 more
core   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Series representation of time-stable stochastic processes [PDF]

open access: yes, 2018
A stochastically continuous process ɛ(t), t­ ≥ 0, is said to be time-stable if the sum of n i.i.d. copies of ɛ equals in distribution the time-scaled stochastic process ɛ(nt), t­ ≥ 0. The paper advances the understanding of time-stable processes by means
Molchanov, Ilya   +3 more
core   +1 more source

Spatio-Temporal Consistency for Multivariate Time-Series Representation Learning

open access: yesIEEE Access
Label sparsity in multivariate time series (MTS) makes using label information for practical applications challenging. Thus, unsupervised representation learning methods have gained attention to learn effective representations suitable for various MTS ...
Sangho Lee, Wonjoon Kim, Youngdoo Son
doaj   +1 more source

Data Representation Based on Interval-Sets for Anomaly Detection in Time Series

open access: yesIEEE Access, 2018
Anomaly detection in time series is a popular topic focusing on a variety of applications, which achieves a wealth of results. However, there are many cases of missing anomaly and increased false alarm in most of the existing works.
Huorong Ren   +3 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Universal Time Series Representation Learning Based on Temporal Data Decomposition

open access: yesTaiyuan Ligong Daxue xuebao
Purposes Time series data are widely used in fields such as finance, healthcare, industry, and meteorology. Existing methods often focus on instance-level learning, with limited success in modeling the multi-scale and fine-grained characteristics of time
WANG Minglei, WANG Li
doaj   +1 more source

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