A Layout Algorithm for Hierarchical Graphs with Constraints PDF Download
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Author: Michael L. Slade
Publisher:
ISBN:
Category : Graph theory
Languages : en
Pages : 160
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Book Description
"A new method is developed for reducing edge crossings in the layout of directed graphs for display. The method will reduce edge crossings in graphs which have constraints on the location or movement of some of the nodes. This has not been available in previously published methods. An analysis of the strategies used to choose rank pairs for edge crossing reduction shows that this choice will dramatically affect the amount of crossings eliminated. This method is directly applicable to the reduction of edge crossings in the general graph."--Abstract.
Author: Michael L. Slade
Publisher:
ISBN:
Category : Graph theory
Languages : en
Pages : 160
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Book Description
"A new method is developed for reducing edge crossings in the layout of directed graphs for display. The method will reduce edge crossings in graphs which have constraints on the location or movement of some of the nodes. This has not been available in previously published methods. An analysis of the strategies used to choose rank pairs for edge crossing reduction shows that this choice will dramatically affect the amount of crossings eliminated. This method is directly applicable to the reduction of edge crossings in the general graph."--Abstract.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Wai-Kai Chen
Publisher: CRC Press
ISBN: 9781420041408
Category : Computers
Languages : en
Pages : 3076
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Book Description
A bestseller in its first edition, The Circuits and Filters Handbook has been thoroughly updated to provide the most current, most comprehensive information available in both the classical and emerging fields of circuits and filters, both analog and digital. This edition contains 29 new chapters, with significant additions in the areas of computer-
Author: Thomas Lengauer
Publisher: Springer Science & Business Media
ISBN:
Category : Computers
Languages : en
Pages : 736
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Book Description
The last decade has brought explosive growth in the technology for manufac turing integrated circuits. Integrated circuits with several hundred thousand transistors are now commonplace. This manufacturing capability, combined with the economic benefits of large electronic systems, is forcing a revolution in the design of these systems and providing a challenge to those people in terested in integrated system design. Modern circuits are too complex for an individual to comprehend completely. Managing tremendous complexity and automating the design process have become crucial issues. Two groups are interested in dealing with complexity and in developing algorithms to automate the design process. One group is composed of practi tioners in computer-aided design (CAD) who develop computer programs to aid the circuit-design process. The second group is made up of computer scientists and mathemati'::~l\ns who are interested in the design and analysis of efficient combinatorial aJ::,orithms. These two groups have developed separate bodies of literature and, until recently, have had relatively little interaction. An obstacle to bringing these two groups together is the lack of books that discuss issues of importance to both groups in the same context. There are many instances when a familiarity with the literature of the other group would be beneficial. Some practitioners could use known theoretical results to improve their "cut and try" heuristics. In other cases, theoreticians have published impractical or highly abstracted toy formulations, thinking that the latter are important for circuit layout.
Author: Andre Löffler
Publisher: BoD – Books on Demand
ISBN: 3958261469
Category : Mathematics
Languages : en
Pages : 174
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Book Description
Constraining graph layouts - that is, restricting the placement of vertices and the routing of edges to obey certain constraints - is common practice in graph drawing. In this book, we discuss algorithmic results on two different restriction types: placing vertices on the outer face and on the integer grid. For the first type, we look into the outer k-planar and outer k-quasi-planar graphs, as well as giving a linear-time algorithm to recognize full and closed outer k-planar graphs Monadic Second-order Logic. For the second type, we consider the problem of transferring a given planar drawing onto the integer grid while perserving the original drawings topology; we also generalize a variant of Cauchy's rigidity theorem for orthogonal polyhedra of genus 0 to those of arbitrary genus.
Author: Naveed A. Sherwani
Publisher: Springer Science & Business Media
ISBN: 1475722192
Category : Technology & Engineering
Languages : en
Pages : 499
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Book Description
Algorithms for VLSI Physical Design Automation is a core reference text for graduate students and CAD professionals. It provides a comprehensive treatment of the principles and algorithms of VLSI physical design. Algorithms for VLSI Physical Design Automation presents the concepts and algorithms in an intuitive manner. Each chapter contains 3-4 algorithms that are discussed in detail. Additional algorithms are presented in a somewhat shorter format. References to advanced algorithms are presented at the end of each chapter. Algorithms for VLSI Physical Design Automation covers all aspects of physical design. The first three chapters provide the background material while the subsequent chapters focus on each phase of the physical design cycle. In addition, newer topics like physical design automation of FPGAs and MCMs have been included. The author provides an extensive bibliography which is useful for finding advanced material on a topic. Algorithms for VLSI Physical Design Automation is an invaluable reference for professionals in layout, design automation and physical design.
Author: Helmut E. Graeb
Publisher: Springer Science & Business Media
ISBN: 1441969322
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
Integrated circuits are fundamental electronic components in biomedical, automotive and many other technical systems. A small, yet crucial part of a chip consists of analog circuitry. This part is still in large part designed by hand and therefore represents not only a bottleneck in the design flow, but also a permanent source of design errors responsible for re-designs, costly in terms of wasted test chips and in terms of lost time-to-market. Layout design is the step of the analog design flow with the least support by commercially available, computer-aided design tools. This book provides a survey of promising new approaches to automated, analog layout design, which have been described recently and are rapidly being adopted in industry.
Author: Michael Reinhardt
Publisher: Springer Science & Business Media
ISBN: 1402070918
Category : Computers
Languages : en
Pages : 234
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Book Description
According to the Semiconductor Industry Association's 1999 International Technology Roadmap for Semiconductors, by the year 2008 the integration of more than 500 million transistors will be possible on a single chip. Integrating transistors on silicon will depend increasingly on design reuse. Design reuse techniques have become the subject of books, conferences, and podium discussions over the last few years. However, most discussions focus on higher-level abstraction like RTL descriptions, which can be synthesized. Design reuse is often seen as an add-on to normal design activity, or a special design task that is not an integrated part of the existing design flow. This may all be true for the ASIC world, but not for high-speed, high-performance microprocessors. In the field of high-speed microprocessors, design reuse is an integrated part of the design flow. The method of choice in this demanding field was, and is always, physical design reuse at the layout level. In the past, the practical implementations of this method were linear shrinks and the lambda approach. With the scaling of process technology down to 0.18 micron and below, this approach lost steam and became inefficient. The only viable solution is a method, which is now called Automatic Layout Modification (ALM). It combines compaction, mask manipulation, and correction with powerful capabilities. Automatic Layout Modification, Including design reuse of the Alpha CPU in 0.13 micron SOI technology is a welcome effort to improving some of the practices in chip design today. It is a comprehensive reference work on Automatic Layout Modification which will be valuable to VLSI courses at universities, and to CAD and circuit engineers and engineering managers.
Author: David Eppstein
Publisher: Springer
ISBN: 3642118054
Category : Computers
Languages : en
Pages : 446
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Book Description
This volume constitutes the refereed proceedings of the 17th International Symposium on Graph Drawing, GD 2009, held in Chicago, USA, during September 2009. The 31 revised full papers and 4 short papers presented were carefully reviewed and selected out of 79 submissions. Furthermore, 10 posters were accepted in a separate submission process.
Author: Patrick Healy
Publisher: Springer Science & Business Media
ISBN: 3540314253
Category : Computers
Languages : en
Pages : 549
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Book Description
This book constitutes the thoroughly refereed post-proceedings of the 13th International Symposium on Graph Drawing, GD 2005, held in Limerick, Ireland in September 2005. The 38 revised full papers and 3 revised short papers presented together with 3 software demos, 8 posters and a report on the graph drawing contest were carefully selected during two rounds of reviewing and improvement from 101 submissions. All current aspects in graph drawing are addressed ranging from foundational and methodological issues to applications for various classes of graphs in a variety of fields. Also included is a report on the Workshop on Network Analysis and Visualisation held in conjunction with the conference.
