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Wallis algorithm

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Journal Article
Published: 08 February 2024
Seismological Research Letters (2024) 95 (4): 2044–2057.
... analyzed by classifying them based on these factors. The outliers identified within each reorganized class were assessed in depth, and analyses were conducted in a GIS environment using various subsets such as geology, topography, slope, and surface forms. Based on the K‐means clustering algorithm...
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Journal Article
Published: 01 February 2009
Vadose Zone Journal (2009) 8 (1): 136–141.
... . 1980 . Scaling soil hydraulic properties of a heterogeneous field . Soil Sci. Soc. Am. J . 44 : 681 – 684 . Shumway , R.H. , and D.S. Stoffer . 1982 . An approach to time series smoothing and forecasting using the EM algorithm . J. Time Ser. Anal . 3 : 253 – 264 . Wallis...
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Journal Article
Published: 22 February 2022
The Canadian Mineralogist (2022) 60 (1): 121–132.
... crust and trench deposits ( Wallis & Okudaira 2016 ). The Sanbagawa metamorphic rocks are usually separated into four zones on the basis of minerals contained in pelitic schists: the chlorite, garnet, albite-biotite, and oligoclase-biotite zones ( Higashino 1990 ). These zones correspond...
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Journal Article
Published: 01 August 2004
Vadose Zone Journal (2004) 3 (3): 1050–1056.
... − , PFBA, and PIPES, respectively ( Table 3 ), with overall means of 28.3 (Br − ), 26.5 (PFBA), and 21.6% (PIPES). Significant differences were noted in values of θ De ( p = 0.05) among the till samples as shown by the Kruskal–Wallis test; however, comparison of paired samples with the Mann–Whitney test...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2005
GSA Bulletin (2005) 117 (1-2): 212–228.
... provide indications about the origin of the valley network and can be used for the reconstruction of earlier phases of glacial history and the climatic and tectonic evolution of this significant Antarctic region. DEM-based (Digital Elevation Model) algorithms of automatic drainage network extraction...
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Journal Article
Published: 01 June 2007
Bulletin of Canadian Petroleum Geology (2007) 55 (2): 160–172.
... was based on nonparametric Kruskal-Wallis tests, with verification of their distinctiveness based on detrended correspondence analysis ordination. These latter techniques were also used to correlate the separately compiled groups. Seven palynomorph groups were recognized which were considered to represent...
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Journal Article
Published: 01 June 1993
Journal of the Geological Society (1993) 150 (3): 465–468.
... in the algorithm used to calculate the statistics in their tests (M. Brown pers. comm. 1992). Secondly, the values for t given in Table 1 were obtained using a method that does not make the assumption that the variances of the populations from which the samples are drawn are equal. On the basis of these revised...
Journal Article
Published: 23 July 2019
Bulletin of the Seismological Society of America (2019) 109 (5): 1594–1604.
... and background earthquakes within each dataset. Then, we identify all the sequences of dependent events within each catalog via an agglomerative clustering algorithm. As the next step, we statistically compare the cluster properties across the three areas. For our test, we consider the following spatiotemporal...
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Journal Article
Journal: Paleobiology
Published: 01 November 2009
Paleobiology (2009) 35 (4): 587–611.
... use ecological niche modeling (ENM), specifically the GARP (Genetic Algorithm using Rule-set Prediction) modeling system, to reconstruct the geographic distribution of individual species during two time slices from the middle Miocene through early Pliocene. This method combines known species...
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Journal Article
Published: 04 March 2008
Canadian Journal of Earth Sciences (2008) 45 (2): 213–229.
... medians of boring diameters from different localities were identified with Kruskal–Wallis (overall) and Bonferroni-corrected Mann–Whitney (pairwise) tests. Statistics were calculated using PAST 1.60 ( Hammer et al. 2001 ; Hammer and Harper 2005 ). Des centaines de perforations coquillières...
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Journal Article
Journal: GSA Bulletin
Published: 05 June 2020
GSA Bulletin (2021) 133 (1-2): 199–211.
... metamorphic overprint has been documented by Wallis et al. (2003) and Airaghi et al. (2018) ; this overprint affected the central Longmenshan during the Early Cretaceous (ca. 140–120 Ma) and southern Longmenshan during Late Cretaceous–Paleogene (ca. 80–33 Ma). Neogene tectonomagmatism sufficient to reset...
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Journal Article
Published: 01 April 2005
Bulletin of the Seismological Society of America (2005) 95 (2): 684–698.
... Service ( sss ) in the southern province Wallis for the period 1992–2002 ( Fig. 1A ), providing a local magnitude M L (Deichmann et al. , 2002) . Figure 1. Earthquakes used in this study: (A) Subset of the earthquake catalogue of Switzerland ( ecos ) in the southern province Wallis; (B) subset...
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Journal Article
Journal: Paleobiology
Published: 08 February 2017
Paleobiology (2017) 43 (2): 304–320.
... clustering is not an artifact of the clustering algorithm (Legendre and Legendre 2012 ). As further support, the confidence for the nodes separating our chosen morphotypes were calculated by multistep–multiscale bootstrap resampling using the R-package ‘pvclust’ (Version 2.0-0...
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Journal Article
Journal: Geophysics
Published: 26 February 2019
Geophysics (2019) 84 (2): MR85–MR97.
...Evert L. Durán; Ludmila Adam; Irene C. Wallis ABSTRACT The relationships between elastic wave speeds and rock physical properties are commonly studied through laboratory experiments. However, the estimation of elastic wave arrival times and the associated errors are not reported consistently...
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