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Author: Yani Zhang
Publisher:
ISBN: 9781321088939
Category :
Languages : en
Pages : 45
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Book Description
This paper focuses on graph layouts with constraints using force-directed simulations. Existing graph drawings with constraints include placement of a particular vertex or a group of vertices at a specified location, constraining placement of vertices and edges to specified rows and/or columns. We propose an alternative way of specifying constraints by allowing the user to interactively draw a boundary wherein the graph layout will be constrained. Such boundary constraints may be saved and applied to other graphs as well. In addition, the boundary may be of different topology such as a donut shape, or figure-eight shape, etc. We model these boundaries as a set of additional forces that contribute to the forces acting on graph vertices. Because our proposed approach is force-directed, it can take advantage of optimizations of other force-directed graph layout algorithms. Furthermore, one can utilize the knowledge of the size of the graph to be visualized and the size of the interior of the boundary region to scale the forces appropriately to achieve a uniform distribution of vertices. We tested this idea on several data sets and different boundary constraints.
Author: Yani Zhang
Publisher:
ISBN: 9781321088939
Category :
Languages : en
Pages : 45
Get Book Here
Book Description
This paper focuses on graph layouts with constraints using force-directed simulations. Existing graph drawings with constraints include placement of a particular vertex or a group of vertices at a specified location, constraining placement of vertices and edges to specified rows and/or columns. We propose an alternative way of specifying constraints by allowing the user to interactively draw a boundary wherein the graph layout will be constrained. Such boundary constraints may be saved and applied to other graphs as well. In addition, the boundary may be of different topology such as a donut shape, or figure-eight shape, etc. We model these boundaries as a set of additional forces that contribute to the forces acting on graph vertices. Because our proposed approach is force-directed, it can take advantage of optimizations of other force-directed graph layout algorithms. Furthermore, one can utilize the knowledge of the size of the graph to be visualized and the size of the interior of the boundary region to scale the forces appropriately to achieve a uniform distribution of vertices. We tested this idea on several data sets and different boundary constraints.
Author: Ioannis G. Tollis
Publisher: Springer Science & Business Media
ISBN: 3642002188
Category : Computers
Languages : en
Pages : 472
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Book Description
This book constitutes the proceedings of the 16th International Symposium on Graph Drawing, GD 2008, held in Heraklion, Crete, Greece, during September 21-24, 2008. The 31 long papers and 8 short papers presented together with 10 posters and two invited papers were carefully reviewed and selected from 83 submissions. The volume also includes a report on the Graph Drawing Contest which was held during the conference. An important aspect of the conference is bridging the gap between theoretical advances and implemented solutions of geometric representation of graphs and networks. It is motivated by those applications where it is crucial to visualize structural information as graphs.
Author: Michael Kaufmann
Publisher: Springer Science & Business Media
ISBN: 3540709037
Category : Computers
Languages : en
Pages : 466
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Book Description
This book constitutes the thoroughly refereed post-proceedings of the 14th International Symposium on Graph Drawing, GD 2006, held in Karlsruhe, Germany in September 2006. The 33 revised full papers and 5 revised short papers presented together with 2 invited talks, 1 system demo, 2 poster papers and a report on the graph drawing contest were carefully selected during two rounds of reviewing and improvement from 91 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 fie.
Author: Dinesh P. Mehta
Publisher: Taylor & Francis
ISBN: 1498701884
Category : Computers
Languages : en
Pages : 1120
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Book Description
The Handbook of Data Structures and Applications was first published over a decade ago. This second edition aims to update the first by focusing on areas of research in data structures that have seen significant progress. While the discipline of data structures has not matured as rapidly as other areas of computer science, the book aims to update those areas that have seen advances. Retaining the seven-part structure of the first edition, the handbook begins with a review of introductory material, followed by a discussion of well-known classes of data structures, Priority Queues, Dictionary Structures, and Multidimensional structures. The editors next analyze miscellaneous data structures, which are well-known structures that elude easy classification. The book then addresses mechanisms and tools that were developed to facilitate the use of data structures in real programs. It concludes with an examination of the applications of data structures. Four new chapters have been added on Bloom Filters, Binary Decision Diagrams, Data Structures for Cheminformatics, and Data Structures for Big Data Stores, and updates have been made to other chapters that appeared in the first edition. The Handbook is invaluable for suggesting new ideas for research in data structures, and for revealing application contexts in which they can be deployed. Practitioners devising algorithms will gain insight into organizing data, allowing them to solve algorithmic problems more efficiently.
Author: Charles J. Alpert
Publisher: CRC Press
ISBN: 1000654192
Category : Computers
Languages : en
Pages : 1044
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Book Description
The physical design flow of any project depends upon the size of the design, the technology, the number of designers, the clock frequency, and the time to do the design. As technology advances and design-styles change, physical design flows are constantly reinvented as traditional phases are removed and new ones are added to accommodate changes in
Author: Andreas Butz
Publisher: Springer Science & Business Media
ISBN: 354085410X
Category : Computers
Languages : en
Pages : 287
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Book Description
For centuries, artists and designers have been creating communicative graphics. With the advent of new forms of media, the emergence of paradigms such as ubiquitous computing, and the rapid evolution of interaction devices, there is a continuous cycle of renewal of the technologies and methods to support artists, interaction designers and developers. Developingnewapproachesrequiresanunderstandingofthe fundamentals of perception and cognition as they relate to interaction and communication te- nologies, together with arti?cial intelligence and computer graphics techniques to automate reasoning and enhance cognition. Smart Graphics is in essence an interdisciplinary endeavor and brings together the ?elds of computer graphics, arti?cial intelligence, cognitive science, graphic design and ?ne art. The International Symposium on Smart Graphics 2008 was held on August 27–29 in Rennes, France. It was the ninth event in a series which originally started in 2000 as an American Association for Arti?cial Intelligence Spring Symposium and has taken place every year since then. Due to the high quality of the papers submitted this year, the ProgramCommittee decided to accept 17 fullpapers(insteadoftheusual15),9shortpapersand3systemdemonstrations. The acceptance rate for full papers was 34%. This year’s meeting included a discussion as to the nature of the shape, contentandfutureoftheevent.Representativesfromdi?erentcommunitieswere invitedtogivetheiropinions,andtheorganizingcommitteewouldliketowarmly thank them here. Such questions as the ongoing viability of the symposium and theconsequencesofco-locatingSmartGraphicswithotherlargerresearchevents led to interesting debates and have prepared the groundwork for what could be the future of the Smart Graphics conference series.
Author: Naveed A. Sherwani
Publisher: Springer Science & Business Media
ISBN: 030647509X
Category : Computers
Languages : en
Pages : 592
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Book Description
Algorithms for VLSI Physical Design Automation, Third Edition covers all aspects of physical design. The book is a core reference for graduate students and CAD professionals. For students, concepts and algorithms are presented in an intuitive manner. For CAD professionals, the material presents a balance of theory and practice. An extensive bibliography is provided which is useful for finding advanced material on a topic. At the end of each chapter, exercises are provided, which range in complexity from simple to research level. Algorithms for VLSI Physical Design Automation, Third Edition provides a comprehensive background in the principles and algorithms of VLSI physical design. The goal of this book is to serve as a basis for the development of introductory-level graduate courses in VLSI physical design automation. It provides self-contained material for teaching and learning algorithms of physical design. All algorithms which are considered basic have been included, and are presented in an intuitive manner. Yet, at the same time, enough detail is provided so that readers can actually implement the algorithms given in the text and use them. The first three chapters provide the background material, while the focus of each chapter of the rest of the book is on each phase of the physical design cycle. In addition, newer topics such as physical design automation of FPGAs and MCMs have been included. The basic purpose of the third edition is to investigate the new challenges presented by interconnect and process innovations. In 1995 when the second edition of this book was prepared, a six-layer process and 15 million transistor microprocessors were in advanced stages of design. In 1998, six metal process and 20 million transistor designs are in production. Two new chapters have been added and new material has been included in almost allother chapters. A new chapter on process innovation and its impact on physical design has been added. Another focus of the third edition is to promote use of the Internet as a resource, so wherever possible URLs have been provided for further investigation. Algorithms for VLSI Physical Design Automation, Third Edition is an important core reference work for professionals as well as an advanced level textbook for students.
Author: Seok-Hee Hong
Publisher: Springer Science & Business Media
ISBN: 3540775366
Category : Computers
Languages : en
Pages : 413
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Book Description
This book constitutes the thoroughly refereed post-conference proceedings of the 15th International Symposium on Graph Drawing, GD 2007, held in Sydney, Australia, September 24-26, 2007. The 27 full papers and 9 short papers presented together with 2 invited talks, and a report on the graph drawing contest were carefully selected from 74 initial 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.
Author: Giuseppe Di Battista
Publisher: Pearson
ISBN:
Category : Computers
Languages : en
Pages : 424
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Book Description
Suitable as either a textbook or reference manual, this book describes fundamental algorithmic techniques for constructing drawings of graphs. Exercises are included at the end of each chapter.
Author: Ulrik Brandes
Publisher: Springer Science & Business Media
ISBN: 3642184685
Category : Computers
Languages : en
Pages : 425
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Book Description
This volume constitutes the refereed proceedings of the 18th International Symposium on Graph Drawing, GD 2010, held in Konstanz, Germany, during September 2010. The 30 revised full papers presented together with 5 revised short and 8 poster papers were carefully reviewed and selected from 77 submissions. The volume also contains a detailed report about the 17th Annual Graph Drawing Contest, held as a satellite event of GD 2010. Devoted both to theoretical advances as well as to implemented solutions, the papers are concerned with the geometric representation of graphs and networks and are motivated by those applications where it is crucial to visualize structural information as graphs.
