Implementing deletion in B + -trees - JANNINK - 1995 () Citation Context ...lancing on deletion. One may wonder how this is possible. It is easy to construct an example showing that the tree height can become arbitrarily large, even if there is only one item left in the tree =-=[...
We address the vexing issue of deletions in balanced trees. Rebalancing after a deletion is generally more complicated than rebalancing after an insertion. Textbooks neglect deletion rebalancing, and many B-tree-based database systems do not do it. We describe a relaxation of AVL trees in...
3. Complexity results for edge-deletion to classes close to trees This section is organized as follows. First, in Section 3.1 we study the complexity of the edge-deletion problem to cacti when the input is a bipartite graph. In Section 3.2 we generalize the hardness results for Π-deletion ...
Cite this paper Sen, S., Tarjan, R.E. (2009). Deletion without Rebalancing in Multiway Search Trees. In: Dong, Y., Du, DZ., Ibarra, O. (eds) Algorithms and Computation. ISAAC 2009. Lecture Notes in Computer Science, vol 5878. Springer, Berlin, Heidelberg. https://doi.org/10.1007/...
However, the results have been based on incongruences in molecular phylogenetic trees. On the other hand, there are numerous reports in the literature that have directly introduced foreign DNA by injecting exogenous DNA or directly DNA soaking or pollen tube pathway into rice, barley, wheat, ...
Gan et al. (2018) reported that the tobacco overexpressing apple MdPIN1b exhibits increased polar auxin transport and that lower expression of MdPIN1b in the M9 interstem may contribute to the dwarfing phenotype in apple trees. However, the genome and functions of PINs in pear still remain ...
Davis, Davis, CA 95616, USA 3 Institute of Agricultural Science, Federal University of Minas Gerais, Montes Claros, Minas Gerais 39404‑547, Brazil Reducing seed content without changing the size of the fruit is one of the main objectives of the cultivation of many fruit trees....
This technique combines traditional indexing methods like B-trees and Log Structured Merged trees to efficiently handle data insertion, deletion, and queries. In this multi-level indexing scheme, the main table is divided into partitions, and a METATABLE is generated on a manager node, like ...
Trees have treewidth one. Parameterized complexity is a two-dimensional framework for studying the computational complexity of problems[14], [19], [23]. One dimension is the input size n (as in classical complexity theory), and the other one is the parameter k (usually a positive integer)....
Processing of any subtree can be performed without concern of consistency with other processing of other subtrees. Further examples with taller or wider directory trees, and other names or conventions for directories or files are readily devised in keeping with the teachings herein. The above-...