Showing 1 - 20 results of 42 for search '"stretch factor"', query time: 0.21s Refine Results
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    Coordinated motion planning: Reconfiguring a swarm of labeled robots with bounded stretch by Demaine, Erik

    Published 2021
    “…On the other hand, we show that for densely packed disks that cannot be well separated, a stretch factor Ω(N1/4) may be required. On the positive side, we establish a stretch factor of O(N1'2) even in this case. …”
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    Article
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    Low complexity among principal fully irreducible elements of Out(F3) by Andrew, N, Hillen, P, Lyman, RA, Pfaff, CE

    Published 2025
    “…We find the shortest realized stretch factor for a fully irreducible φ ∈ Out(F3) and show that it is realized by a “principal” fully irreducible element. …”
    Journal article
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    Research on weak greedy routing over graph embedding for wireless sensor networks by LI Zhi-gang1, CHEN Wei-wei1, XIAO Nong2, XIA Ge-ming2

    Published 2011-01-01
    “…The greedy routing in sensor networks can be classified into two categories,strong greedy routing and weak greedy routing.The weak greedy routing protocol needs geographic location and strong greedy routing needs greedy em-bedding network.In order to solve these problems and minimize operation complexity and energy overhead,a light-weight tree-based network embedding graph(TNEG) was proposed and over the TNEG,a local monotone function was designed and two routing rules were proposed,then two weak greedy routing protocols,TGR and biTGR were de-signed.The simulation shows two protocols achieve good performance on path stretch factor and load balance factor.…”
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    Article
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    Virtual backbone formation algorithm based on GBG for wireless sensor networks by SUN Yan-jing, QIAN Jian-sheng

    Published 2008-01-01
    “…The computed con- nected dominating set guarantees a constant stretch factor and constant degree while the nodes only require direct neighborhood information. …”
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    Article
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    Research on weak greedy routing over graph embedding for wireless sensor networks by LI Zhi-gang1, CHEN Wei-wei1, XIAO Nong2, XIA Ge-ming2

    Published 2011-01-01
    “…The greedy routing in sensor networks can be classified into two categories,strong greedy routing and weak greedy routing.The weak greedy routing protocol needs geographic location and strong greedy routing needs greedy em-bedding network.In order to solve these problems and minimize operation complexity and energy overhead,a light-weight tree-based network embedding graph(TNEG) was proposed and over the TNEG,a local monotone function was designed and two routing rules were proposed,then two weak greedy routing protocols,TGR and biTGR were de-signed.The simulation shows two protocols achieve good performance on path stretch factor and load balance factor.…”
    Get full text
    Article
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    Virtual backbone formation algorithm based on GBG for wireless sensor networks by SUN Yan-jing, QIAN Jian-sheng

    Published 2008-01-01
    “…The computed con- nected dominating set guarantees a constant stretch factor and constant degree while the nodes only require direct neighborhood information. …”
    Get full text
    Article
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    Resilient greedy routing on GPS-free surface sensor networks by Buri Ban, Xuan Li, Miao Jin

    Published 2020-04-01
    “…Simulation results show the proposed routing scheme with a higher successful delivery ratio, a lower average stretch factor, and a lower normalized communication cost compared with other resilient routing methods.…”
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    Article
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    Improving Greedy Spanner Construction Algorithm by hosein salami, Mostafa Nouri Baygi

    Published 2023-04-01
    “…Experimental results show these improvements are able to significantly accelerate the construction of greedy spanners, compared to the other existing algorithms, especially when the stretch factor gets close to 1.…”
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    Article
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    Time-Dependent Alternative Route Planning: Theory and Practice by Spyros Kontogiannis, Andreas Paraskevopoulos, Christos Zaroliagis

    Published 2021-07-01
    “…The resulting set of alternative routes is aggregated in the form of a time-dependent alternative graph, which is characterized by the minimum route overlap, small stretch factor, small size, and low complexity. To our knowledge, this is the first work that deals with the time-dependent setting in the framework of alternative routes. …”
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    Article
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    Supraharmonics monitoring based on VSSESP-DBP dynamic compressed sensing algorithm by Chao Yan, Hongtao Shen, Jie Yu, Peng Tao, Hongxi Wang, Ting Yang

    Published 2025-03-01
    “…This modulation is achieved through a scale stretch factor, reducing reconstruction error. The study leverages the sparsity of superharmonic signals within the time window and proves the applicability of compressed sensing theory for dynamic compressive sampling. …”
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    Article
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    Optimal Vertex Fault Tolerant Spanners (for fixed stretch) by Bodwin, Greg, Dinitz, Michael, Parter, Merav, Williams, Virginia Vassilevska

    Published 2021
    “…In this paper, we settle the question of the optimal size of a VFT spanner, in the setting where the stretch factor k is fixed. Specifically, we prove that every (undirected, possibly weighted) n-node graph G has a (2k-1)-spanner resilient to f vertex faults with Ok(f1-1=kn1+1=k) edges, and this is fully optimal (unless the famous Erdös Girth Conjecture is false). …”
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    Article
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    Segment length in cine (SLICE) strain analysis: a practical approach to estimate potential benefit from cardiac resynchronization therapy by Alwin Zweerink, Robin Nijveldt, Natalia J. Braams, Alexander H. Maass, Kevin Vernooy, Frederik J. de Lange, Mathias Meine, Bastiaan Geelhoed, Michiel Rienstra, Isabelle C. van Gelder, Marc A. Vos, Albert C. van Rossum, Cornelis P. Allaart

    Published 2021-01-01
    “…In contrast to timing parameters, strain pattern parameters being systolic rebound stretch of the septum (SRSsep), systolic stretch index (SSIsep-lat), and internal stretch factor (ISFsep-lat) all correlated significantly with LVESV change (R − 0.56; R − 0.53; and R − 0.58, respectively). …”
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    Article
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    Constraining Basin Parameters Using a Known Subsidence History by Mohit Tunwal, Kieran F. Mulchrone, Patrick A. Meere

    Published 2020-07-01
    “…The McKenzie model has been widely applied for subsidence modelling and stretching factor estimation for sedimentary basins formed in an extensional tectonic environment. …”
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    Article
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    Interrelation between rifting, faulting, sedimentation, and mantle serpentinization during continental margin formation—including examples from the Norwegian Sea by Lars H. Rüpke, Daniel W. Schmid, Marta Perez‐Gussinye, Ebbe Hartz

    Published 2013-10-01
    “…A systematic parameter study shows that a critical stretching factor exists for which complete crustal embrittlement and serpentinization occurs. …”
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    Article
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    Differential extension and dynamic model of the deep-water area of the Pearl River Mouth Basin, northern South China Sea by Caili Lü, Gongcheng Zhang, Dongsheng Yang, Huijun Gao

    Published 2017-06-01
    “…Keywords: Pearl River Mouth Basin, Deep-water area, Differential extension, Stretching factor, Dynamic model…”
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    Article
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    Numerical Modelling to Evaluate Sedimentation Effects on Heat Flow and Subsidence during Continental Rifting by Yeseul Kim, Min Huh, Eun Young Lee

    Published 2020-11-01
    “…The findings also demonstrate that increases in the stretching factor and sedimentation rate enhance the blanketing effect and subsidence rate. …”
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    Article