Results 21 to 30 of about 458,490 (247)

Computationally Efficient Scale Covariant Time-Frequency Distributions

EURASIP Journal on Advances in Signal Processing, 2009
Scale is a physical attribute of a signal which occurs in many natural settings. Time-frequency distributions (TFDs) belonging to Cohen's class are invariant to time and frequency shifts, but are not necessarily covariant to the time scalings of the ...
Selin Aviyente
doaj   +1 more source

Daily Precipitation Frequency Distributions Impacts on Land-Surface Simulations of CONUS

Frontiers in Water, 2021
Many precipitation-driven data products from land data assimilation systems support assessments of droughts, floods, and other societally-relevant land-surface processes.
Daniel P. Sarmiento, Daniel P. Sarmiento, Kimberly Slinski, Kimberly Slinski, Amy McNally, Amy McNally, Jossy P. Jacob, Jossy P. Jacob, Chris Funk, Pete Peterson, Christa D. Peters-Lidard   +10 more
doaj   +1 more source

Experience in applying large language models to analyse quantitative sociological data

Вестник университета
The article discusses the possibilities and limitations of using large language models (hereinafter referred to as LLM) to analyse quantitative data in sociological research.
E. G. Ashikhmin, V. V. Levchenko, G. I. Seletkova   +2 more
doaj   +1 more source

Runoff thresholds in derived flood frequency distributions [PDF]

Hydrology and Earth System Sciences, 2008
In general, different mechanisms may be identified as responsible of runoff generation during ordinary events or extraordinary events at the basin scale. In a simplified scheme these mechanisms may be represented by different runoff thresholds.
A. Gioia, V. Iacobellis, S. Manfreda, M. Fiorentino   +3 more
doaj  

Similarity of Symbol Frequency Distributions with Heavy Tails

Physical Review X, 2016
Quantifying the similarity between symbolic sequences is a traditional problem in information theory which requires comparing the frequencies of symbols in different sequences.
Martin Gerlach, Francesc Font-Clos, Eduardo G. Altmann   +2 more
doaj   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware, Colter K. Clayton, Fang Wang, Sedigheh Mirzaei, Kyla Shelton, Tara M. Brinkman, Victoria Willard, Katianne M. Howard Sharp, Kevin Krull, Lindsay F. Schwartz, Melissa M. Hudson, Gregory T. Armstrong, Kirsten K. Ness, Rachel T. Webster   +13 more
wiley   +1 more source

Rule-Based EEG Classifier Utilizing Local Entropy of Time–Frequency Distributions

Mathematics, 2021
Electroencephalogram (EEG) signals are known to contain signatures of stimuli that induce brain activities. However, detecting these signatures to classify captured EEG waveforms is one of the most challenging tasks of EEG analysis. This paper proposes a
Jonatan Lerga, Nicoletta Saulig, Ljubiša Stanković, Damir Seršić   +3 more
doaj   +1 more source

Utility of Computed Tomography Surveillance of Asymptomatic Infection in Children and Young Adults Before Allogeneic Hematopoietic Stem Cell Transplant

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Asymptomatic infection poses a significant risk for children undergoing hematopoietic stem cell transplantation (HSCT). Pre‐transplant surveillance computed tomography (CT) is commonly used to identify occult infection, though its diagnostic yield remains uncertain.
Tyler Obermark, Pradipta Debnath, Rama S. Ayyala, Lara A. Danziger‐Isakov, Jane Koo, Kasiani C. Myers, William R. Otto, Aki Tanimoto, Andrew T. Trout, Cara E. Morin   +9 more
wiley   +1 more source

Daily tornado frequency distributions in the United States

Environmental Research Letters, 2014
The authors examine daily tornado counts in the United States over the period 1994–2012 and find strong evidence for a power-law relationship in the distribution frequency.
J B Elsner, T H Jagger, H M Widen, D R Chavas   +3 more
doaj   +1 more source

A neutral theory of genome evolution and the frequency distribution of genes

BMC Genomics, 2012
Background The gene composition of bacteria of the same species can differ significantly between isolates. Variability in gene composition can be summarized in terms of gene frequency distributions, in which individual genes are ranked according to the ...
Haegeman Bart, Weitz Joshua S
doaj   +1 more source