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Rooted phylogenetic networks allow biologists to represent evolutionary relationships between present-day species by revealing ancestral speciation and hybridization events. A convenient and well-studied class of such networks are 'tree-child networks' and a 'ranking' of such a network is a temporal ordering of …
nz (code pays fourni par la source)
Ke Wang, Qiang Zhang, Xuezhi Zhao
In this paper, we mainly study the following symmetric presentation of the surface group $$π_1(Σ_g)=\left\langle c_1,\dots, c_{2g}\mid c_1\cdots c_{2g}c_1^{-1}\cdots c_{2g}^{-1}\right\rangle.$$ For every nontrivial element $x\in π_1(Σ_g)$ and $k\geq 2$, we obtain a uniform representative of the normal forms $\mathfrak{nf}(x^k)$ of $x^k$ under …
Rooted phylogenetic networks allow biologists to represent evolutionary relationships between present-day species by revealing ancestral speciation and hybridization events. A convenient and well-studied class of such networks are `tree-child networks' and a `ranking' of such a network is a temporal ordering of …
Jing Yu, Yuqi Tang, Kehua Feng, M. Sreenivasa Rao et autres
Large Language Models (LLMs) have shown impressive capabilities in contextual understanding and reasoning. However, evaluating their performance across diverse scientific domains remains underexplored, as existing benchmarks primarily focus on general domains and fail to capture the intricate complexity of scientific data. To …
Michael Fuchs, Mike Steel, Qiang Zhang
Abstract Phylogenetic networks provide a more general description of evolutionary relationships than rooted phylogenetic trees. One way to produce a phylogenetic network is to randomly place k arcs between the edges of a rooted binary phylogenetic tree with n leaves. The resulting …
tw, nz (code pays fourni par la source)
Michael Fuchs, Mike Steel, Qiang Zhang
Phylogenetic networks provide a more general description of evolutionary relationships than rooted phylogenetic trees. One way to produce a phylogenetic network is to randomly place $k$ arcs between the edges of a rooted binary phylogenetic tree with $n$ leaves. The resulting directed …
Lingbing Guo, Zhongpu Bo, Zhuo Chen, Yichi Zhang et autres
Large language models (LLMs) have significantly advanced performance across a spectrum of natural language processing (NLP) tasks. Yet, their application to knowledge graphs (KGs), which describe facts in the form of triplets and allow minimal hallucinations, remains an underexplored frontier. In this …
Qiang Zhang, Yeyi Liu, Yuanyuan Liu, Dionysius Ang
Qiang Zhang, Yong Wang, Rong Hua Guo, Jing Ye
cn (code pays fourni par la source)
The SEC teaching management platform provides a good support for school-enterprise cooperation. This paper conducts research on the SEC management information platform based on the B/S architecture. On the basis of the analysis of the relevant functional needs of the system, the …
Qiang Zhang, Chao Wang, Shancun Liu, Yaodong Yang
cn, gb (code pays fourni par la source)
Yang Chen, Qiang Zhang, Shun Chen, Zheng Wan
cn (code pays fourni par la source)
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