نتایج جستجو برای: derived set

تعداد نتایج: 1105898  

ژورنال: علوم آب و خاک 2017

Mapping the spatial distribution of soil taxonomic classes is important for useful and effective use of soil and management decisions. Digital soil mapping (DSM) may have advantages over conventional soil mapping approaches as it may better capture observed spatial variability and reduce the need to aggregate soil types. A key component of any DSM activity is the method used to define the relat...

Journal: :iranian journal of fuzzy systems 2010
xiu xin fu-gui shi sheng-gang li

this paper presents characterizations of m-fuzzifying matroids bymeans of two kinds of fuzzy operators, called m-fuzzifying derived operatorsand m-fuzzifying difference derived operators.

Journal: :Earth System Science Data 2022

Abstract. Offshore wind energy is at the advent of a massive global expansion. To investigate development offshore sector, optimal farm locations, or impact projects, freely accessible spatiotemporal data set infrastructure necessary. With free and direct access to such data, it more likely that all stakeholders who operate in marine coastal environments will become involved upcoming expansion ...

Journal: :iranian journal of pharmaceutical research 0
xiang-lin yang college of chemistry and chemical engineering, hunan university of science and technology, xiangtan, hunan 411201, china yuan zhou college of chemistry and chemical engineering hunan engineering institute, xiangtan, 411104, p.r. china xin-ling liu college of chemistry and chemical engineering, hunan institute of engineering, xiangtan, hunan 411104, china

a series of structurally related 2,4-dioxopyrimidine-1-carboxamide derivatives as highly potent inhibitors against acid ceramidase were subjected to hologram quantitative structure-activity relationship (hqsar) analysis. a training set containing 24 compounds served to establish the hqsar model. the best hqsar model was generated using atoms, bond, connectivity, donor and acceptor as fragment d...

Journal: :journal of the iranian chemical research 0
vali zare-shahabadi department of chemistry, mahshahr branch, islamic azad university, mahshahr, iran

the classification and regression trees (cart) possess the advantage of being able to handlelarge data sets and yield readily interpretable models. in spite to these advantages, they are alsorecognized as highly unstable classifiers with respect to minor perturbations in the training data.in the other words methods present high variance. fuzzy logic brings in an improvement in theseaspects due ...

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