Results 41 to 50 of about 707,669 (303)

Cosmological Cutting Rules

open access: yesJournal of High Energy Physics, 2021
Primordial perturbations in our universe are believed to have a quantum origin, and can be described by the wavefunction of the universe (or equivalently, cosmological correlators). It follows that these observables must carry the imprint of the founding
Scott Melville, Enrico Pajer
doaj   +1 more source

An Energy-Efficient and Fault-Tolerant Convergecast Protocol in Wireless Sensor Networks

open access: yesInternational Journal of Distributed Sensor Networks, 2012
The simple graph theory is commonly employed in wireless sensor networks topology control. An inherent problem of small-granularity algorithms is the high computing complexity and large solution space when managing large-scale WSNs. Computed transmission
Ting Yang, ChunJian Kang, Guofang Nan
doaj   +1 more source

Method for Developing Combinatorial Generation Algorithms Based on AND/OR Trees and Its Application

open access: yesMathematics, 2020
In this paper, we study the problem of developing new combinatorial generation algorithms. The main purpose of our research is to derive and improve general methods for developing combinatorial generation algorithms.
Yuriy Shablya   +2 more
doaj   +1 more source

Transforming structures by set interpretations [PDF]

open access: yesLogical Methods in Computer Science, 2007
We consider a new kind of interpretation over relational structures: finite sets interpretations. Those interpretations are defined by weak monadic second-order (WMSO) formulas with free set variables.
Thomas Colcombet, Christof Löding
doaj   +1 more source

Vertices Contained In All Or In No Minimum Semitotal Dominating Set Of A Tree

open access: yesDiscussiones Mathematicae Graph Theory, 2016
Let G be a graph with no isolated vertex. In this paper, we study a parameter that is squeezed between arguably the two most important domination parameters; namely, the domination number, γ(G), and the total domination number, γt(G). A set S of vertices
Michael A. Henning, Alister J. Marcon
semanticscholar   +1 more source

Scattering of conformal higher spin fields

open access: yesJournal of High Energy Physics, 2018
We develop a formalism for describing the most general notion of tree-level scattering amplitudes in 4d conformal higher spin theory. As conformal higher spin fields obey higher-derivative equations of motion, there are many distinct on-shell external ...
Tim Adamo   +2 more
doaj   +1 more source

Improvement of ID3 Algorithm Based on Simplified Information Entropy and Coordination Degree

open access: yesAlgorithms, 2017
The decision tree algorithm is a core technology in data classification mining, and ID3 (Iterative Dichotomiser 3) algorithm is a famous one, which has achieved good results in the field of classification mining.
Yingying Wang   +4 more
doaj   +1 more source

BCJ numerators from differential operator of multidimensional residue

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
In previous works, we devised a differential operator for evaluating typical integrals appearing in the Cachazo–He–Yuan (CHY) forms and in this paper we further streamline this method.
Gang Chen, Tianheng Wang
doaj   +1 more source

Deep Fuzzy Tree for Large-Scale Hierarchical Visual Classification

open access: yesIEEE transactions on fuzzy systems, 2020
Deep learning models often use a flat softmax layer to classify samples after feature extraction in visual classification tasks. However, it is hard to make a single decision of finding the true label from massive classes.
Yu Wang   +6 more
semanticscholar   +1 more source

Representations of Infinite Tree Sets [PDF]

open access: yesOrder, 2019
Tree sets are abstract structures that can be used to model various tree-shaped objects in combinatorics. Finite tree sets can be represented by finite graph-theoretical trees. We extend this representation theory to infinite tree sets.
J. Pascal Gollin, Jakob Kneip
semanticscholar   +1 more source

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