Results 21 to 30 of about 267,386 (266)
ACM Transactions on Algorithms, 2004 We present the priority R-tree, or PR-tree, which is the first R-tree variant that always answers a window query using O (( N / B ) 1−1/ d + T / B ) I/Os ...
Arge, Lars +3 more
openaire +9 more sources
SPRIT: Identifying horizontal gene transfer in rooted phylogenetic trees
BMC Evolutionary Biology, 2010 Background Phylogenetic trees based on sequences from a set of taxa can be incongruent due to horizontal gene transfer (HGT). By identifying the HGT events, we can reconcile the gene trees and derive a taxon tree that adequately represents the species ...
Fredriksson Robert +6 more
doaj +1 more source
PhySortR: a fast, flexible tool for sorting phylogenetic trees in R [PDF]
PeerJ, 2016 A frequent bottleneck in interpreting phylogenomic output is the need to screen often thousands of trees for features of interest, particularly robust clades of specific taxa, as evidence of monophyletic relationship and/or reticulated evolution. Here we
Timothy G. Stephens +3 more
doaj +2 more sources
Remote Sensing, 2022 The increasing extreme weather and climate events have a significant impact on the resistance and resilience of Norway spruce trees. The responses and adaptation of individual trees to certain factors can be assessed through the tree breeding programmes.
Endijs Bāders +6 more
doaj +1 more source
Efficient historical R-trees [PDF]
Proceedings Thirteenth International Conference on Scientific and Statistical Database Management. SSDBM 2001, 2002 The historical R-tree (HR-tree) is a spatio-temporal access method aimed at the retrieval of window queries in the past. The concept behind the method is to keep an R-tree for each timestamp in history, but to allow consecutive trees to share branches when the underlying objects do not change.
Yufei Tao 0001, Dimitris Papadias
openaire +1 more source
Agriculture, 2023 To address the current difficult problem of scientifically assessing the health status of date palm trees due to a single parameter for date palm health assessment, an imperfect index system, and low precision.
Yuzhen Wu +4 more
doaj +1 more source
PPtreeViz: An R Package for Visualizing Projection Pursuit Classification Trees
Journal of Statistical Software, 2018 PPtreeViz, an R package, was developed to explore projection pursuit methods for classification. It provides functions to calculate various projection pursuit indices for classification and to explore the results in the space of projection.
Eun-Kyung Lee
doaj +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Adolescents with haematological malignancies face significant emotional and relational challenges, often accompanied by difficulties in communicating their needs within the healthcare context. To address these issues, a narrative‐based psycho‐educational intervention based on the creation and prescription of Ironic Medications was ...
Marta Stoppa +7 more
wiley +1 more source
Efficient Spatial Data Structure for Multiversion Management of Engineering Drawings [PDF]
Journal of Systemics, Cybernetics and Informatics, 2004 In the engineering database system, multiple versions of a design including engineering drawings should be managed efficiently. The paper proposes an extended spatial data structure for efficient management of multiversion engineering drawings.
Yasuaki Nakamura, Hiroyuki Dekihara
doaj
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin +2 more
wiley +1 more source