Results 11 to 20 of about 35,357 (263)
Unsupervised random forest for affinity estimation
Computational Visual Media, 2021 This paper presents an unsupervised clustering random-forest-based metric for affinity estimation in large and high-dimensional data. The criterion used for node splitting during forest construction can handle rank-deficiency when measuring cluster ...
Yunai Yi +5 more
doaj +1 more source
Trees symbolism, conservation and threat in Guji Oromo, Southern Ethiopia
Cogent Social Sciences, 2021 This article aims at investigating origin of tree symbolism and the cultural events embedded within this symbolism among the Guji Oromo. The study has opted qualitative approach, descriptive research design, and method of data production like interview ...
Gemeda Odo Roba
doaj +1 more source
Clustering Based on the In-Tree Graph Structure and Affinity Propagation [PDF]
2017 4th IAPR Asian Conference on Pattern Recognition (ACPR), 2017 A recently proposed clustering method, called the Nearest Descent (ND), can organize the whole dataset into a sparsely connected graph, called the In-tree. This ND-based Intree structure proves able to reveal the clustering structure underlying the dataset, except one imperfect place, that is, there are some undesired edges in this In-tree which ...
Teng Qiu, Yongjie Li, Longjie Li
openaire +2 more sources
Frontiers in Immunology, 2022 Affinity maturation (AM) of B cells through somatic hypermutations (SHMs) enables the immune system to evolve to recognize diverse pathogens. The accumulation of SHMs leads to the formation of clonal lineages of antibody-secreting b cells that have ...
Chao Zhang +3 more
doaj +1 more source
Point matching based on affine invariant centroid trees
EURASIP Journal on Advances in Signal Processing, 2022 AbstractObject detection can be formulated as a point matching problem when objects are modeled by point sets. Moments, which have been widely used for point matching, are limited to affine transformations as their support point sets cannot keep invariant.
Wei Wang 0458 +4 more
openaire +2 more sources
Five Rootstocks for “Emperor” Mandarin Under Subtropical Climate in Southern Brazil
Frontiers in Plant Science, 2021 Rootstocks modulate several characteristics of citrus trees, including vegetative growth, fruit yield and quality, and resistance or tolerance to pests, diseases, soil drought, and salinity, among other factors. There is a shortage of scion and rootstock
Maria Aparecida da Cruz +10 more
doaj +1 more source
Royal Society Open Science, 2022 The representation of the protein-ligand complexes used in building machine learning models play an important role in the accuracy of binding affinity prediction. The Extended Connectivity Interaction Features (ECIF) is one such representation. We report
Oghenejokpeme I. Orhobor +4 more
doaj +1 more source
AFFINE ACTIONS ON NON-ARCHIMEDEAN TREES [PDF]
International Journal of Algebra and Computation, 2013 We initiate the study of affine actions of groups on Λ-trees for a general ordered abelian group Λ; these are actions by dilations rather than isometries. This gives a common generalization of isometric action on a Λ-tree, and affine action on an ℝ-tree as studied by Liousse.
openaire +2 more sources
Influence of the seed in affine preferential attachment trees [PDF]
Bernoulli, 2020 31 pages, 1 ...
Corlin Marchand, David, Manolescu, Ioan
openaire +4 more sources
Patterns in sets of positive density in trees and affine buildings [PDF]
Groups, Geometry, and Dynamics, 2021 We prove an analogue for homogeneous trees and certain affine buildings of a result of Bourgain on pinned distances in sets of positive density in Euclidean spaces. Furthermore, we construct an example of a non-homogeneous tree with positive Hausdorff dimension, and a subset with positive density thereof, in which not all sufficiently large (even ...
Björklund, Michael +2 more
openaire +3 more sources