Tree Topology

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Marios C Papaefthymiou - One of the best experts on this subject based on the ideXlab platform.

  • A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2001
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.

  • ISCAS (4) - A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 1
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.

Enno Ohlebusch - One of the best experts on this subject based on the ideXlab platform.

  • Space-Efficient Parallel Construction of Succinct Representations of Suffix Tree Topologies
    ACM Journal of Experimental Algorithmics, 2017
    Co-Authors: Uwe Baier, Timo Beller, Enno Ohlebusch
    Abstract:

    A compressed suffix Tree usually consists of three components: a compressed suffix array, a compressed LCP-array, and a succinct representation of the suffix Tree Topology. There are parallel algorithms that construct the suffix array and the LCP-array, but none for the third component. In this article, we present parallel algorithms on shared memory architectures that construct the balanced parentheses sequence (BPS), an explicit succinct representation of the suffix Tree Topology, as well as the enhanced balanced parentheses representation (eBPR), an implicit succinct representation of the suffix Tree Topology. For both representations, this article presents a sequential construction algorithm (a new one for the BPS), a linear work and O(log n) time parallel construction algorithm, and a heuristic parallel construction algorithm that works very well in practice. The experimental results show that our methods are well suited for real-world applications.

  • SPIRE - Parallel Construction of Succinct Representations of Suffix Tree Topologies
    String Processing and Information Retrieval, 2015
    Co-Authors: Uwe Baier, Timo Beller, Enno Ohlebusch
    Abstract:

    A compressed suffix Tree usually consists of three components: a compressed suffix array, a compressed $$\mathsf {LCP}$$-array, and a succinct representation of the suffix Tree Topology. There are parallel algorithms that construct the suffix array and the $$\mathsf {LCP}$$-array, but none for the third component. In this paper, we present parallel algorithms on shared memory architectures that construct the enhanced balanced parentheses representation $$\mathsf {BPR}$$. The enhanced $$\mathsf {BPR}$$ is an implicit succinct representation of the suffix Tree Topology, which supports all navigational operations on the suffix Tree. It can also be used to efficiently construct the $$\mathsf {BPS}$$, an explicit succinct representation of the suffix Tree Topology.

Dimitrios Velenis - One of the best experts on this subject based on the ideXlab platform.

  • A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2001
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.

  • ISCAS (4) - A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 1
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.

Uwe Baier - One of the best experts on this subject based on the ideXlab platform.

  • Space-Efficient Parallel Construction of Succinct Representations of Suffix Tree Topologies
    ACM Journal of Experimental Algorithmics, 2017
    Co-Authors: Uwe Baier, Timo Beller, Enno Ohlebusch
    Abstract:

    A compressed suffix Tree usually consists of three components: a compressed suffix array, a compressed LCP-array, and a succinct representation of the suffix Tree Topology. There are parallel algorithms that construct the suffix array and the LCP-array, but none for the third component. In this article, we present parallel algorithms on shared memory architectures that construct the balanced parentheses sequence (BPS), an explicit succinct representation of the suffix Tree Topology, as well as the enhanced balanced parentheses representation (eBPR), an implicit succinct representation of the suffix Tree Topology. For both representations, this article presents a sequential construction algorithm (a new one for the BPS), a linear work and O(log n) time parallel construction algorithm, and a heuristic parallel construction algorithm that works very well in practice. The experimental results show that our methods are well suited for real-world applications.

  • SPIRE - Parallel Construction of Succinct Representations of Suffix Tree Topologies
    String Processing and Information Retrieval, 2015
    Co-Authors: Uwe Baier, Timo Beller, Enno Ohlebusch
    Abstract:

    A compressed suffix Tree usually consists of three components: a compressed suffix array, a compressed $$\mathsf {LCP}$$-array, and a succinct representation of the suffix Tree Topology. There are parallel algorithms that construct the suffix array and the $$\mathsf {LCP}$$-array, but none for the third component. In this paper, we present parallel algorithms on shared memory architectures that construct the enhanced balanced parentheses representation $$\mathsf {BPR}$$. The enhanced $$\mathsf {BPR}$$ is an implicit succinct representation of the suffix Tree Topology, which supports all navigational operations on the suffix Tree. It can also be used to efficiently construct the $$\mathsf {BPS}$$, an explicit succinct representation of the suffix Tree Topology.

E.g. Friedman - One of the best experts on this subject based on the ideXlab platform.

  • A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 2001
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.

  • ISCAS (4) - A clock Tree Topology extraction algorithm for improving the tolerance of clock distribution networks to delay uncertainty
    ISCAS 2001. The 2001 IEEE International Symposium on Circuits and Systems (Cat. No.01CH37196), 1
    Co-Authors: Dimitrios Velenis, E.g. Friedman, Marios C Papaefthymiou
    Abstract:

    The design of clock distribution networks in synchronous systems presents enormous challenges. Control of the clock signal delay in the presence of various noise sources, process parameter variations, and environmental effects represents one of the fundamental problems in the design of high speed synchronous circuits. An algorithm that improves the tolerance of a clock distribution network to process and environmental variations is presented in this paper. The algorithm generates a clock Tree Topology that minimizes the uncertainty of the clock signal delay in the most critical data paths. Details of the algorithm and preliminary results on benchmark circuits are presented.