#SECTION#
Network 
#SECTION_END#
 
#OWNER#rjones@cs.umd.edu#OWNER_END#

#AUTHOR#
Jones, Ryan (<A HREF="mailto:rjones@cs.umd.edu">rjones@cs.umd.edu</A>)
#AUTHOR_END#

#AUTHOR#
Zhang, Zhijun (<A HREF="mailto:zzj@cs.umd.edu">zzj@cs.umd.edu</A>)
#AUTHOR_END#

#ALL_AUTHOR#
<A HREF="mailto:rjones@cs.umd.edu,zzj@cs.umd.edu">{rjones,zzj}@cs.umd.edu</A>
#ALL_AUTHOR_END#

#BACKGROUND# The goal of network information visualization involves
gaining insight into a structure that may consist of many data
items. Networks consists of nodes and links, nodes representing a data
point, and a link representing a relationship between two nodes.  Much
of the early work done in this field came about from graph drawing. A
graph with few points (or vertices) is easy to draw and to comprehend
visually, but currently tools are needed to handled large data sets.
Large set of data tend to have much of their information
hidden. Finding a structure or hierarchy among a set of data points is
not easy, therefore many are categorized into different cases of networks
(acyclic, lattices, rooted versus unrooted, directed versus
undirected). This enables researchers to develop algorithms to perform
tasks on these structures such as finding the shortest or least costly
paths connecting two items or traversing the entire network.
#BACKGROUND_END#

#BACKGROUND#
A diagram of a network is often used to illustrate the structure of a
network.  Most interface representations include the following kinds
of node-and-link diagrams: two-dimensional or three-dimensional.  Some
visualization techniques add animation, distortion, and tightly-coupled
overview window to reveal even more information about a network.
#BACKGROUND_END#

#BACKGROUND#
Although network visualization goes back to the 1960's (Tutte, 1963,
Knuth, 1963) the representation is still an imperfect art. The sheer
complexity of relationships and user tasks that can exist leaves much
work to be done. Commercial packages can handle small networks or
simple strategies, such as Netmap's layout of nodes on a circle with
links criss-crossing the central area. Specialized visualizations can
be designed to be more effective for a given task, such as a network
diagram showing heavy telephone traffic on holidays. An ambitious
three-dimensional approach allowed users to fly into a network and
control the visualization (Fairchild et al., 1988). New interest in
this topic has been spawned by attempts to visualize the World Wide
Web (Andrews, 1995; Hendley et al., 1995, Munzner and Buchard, 1995).
#BACKGROUND_END#

#BACKGROUND#
Application areas of network visualization include databases (both the
database model and items in the database), software (static connection
of modules, classes; dynamic connection of processes; etc.), computer
networks, World Wide Web as well as hypertext/hypermedia in general,
digital library (references, etc.), GIS (geographic relations between
locations), social and management networks, as well as everyday life
(grocery shopping), etc.
#BACKGROUND_END#

#USER#
Web Surfers
#USER_END#

#USER#
System Network Managers
#USER_END#

#USER#
Programmers
#USER_END#

#USER#
Social Studies Researchers
#USER_END#

#USER#
Biologists
#USER_END#

#USER#
Graph Theory Students
#USER_END#

#USER#
Sales Analyst
#USER_END#

#TASK#
Network Mangament: allow the user to view as much of the a network as
possible in one view so that resources decsisions can be made
#TASK_END#

#TASK#
Traffic Management: relate traffic from different to nodes to 
identify any traffic patterns
#TASK_END#

#TASK#
Program Performance: display a graph of a program to find any
bottlenecks or incorrect data flows.
#TASK_END#

#TASK#
Graph Editing: Change the layout of nodes of a graph so that the
network is easier to comprehend.
#TASK_END#
#TASK#
Relate: enable the user to find relationship among the nodes in a
diagram.
#TASK_END#

#TASK#
Shortest/Cheapest path: find interesting paths in a graph.
#TASK_END#

#RESOURCE#
<a href=http://www.cs.brown.edu/people/rt/gd.html>Graph
Drawing</a>. Including pointers to a bibliography, a tutorial,
research at Brown University, and the graph drawing symposium.
#RESOURCE_END#

#PRODUCT# 
<a href=http://www.ALTAanalytics.com/>Netmap</a>. ALTA
Analytics: Visually analyzes claims in the insurance community.
#PRODUCT_END#

#PRODUCT# 
<a href=http://www.pnl.gov/news/1995/nws95-07.htm>
Themescape</a>. Pacific Northwest Laboratory - Visualize themes in
documents. See also <a
href=http://www.pnl.gov/edo/programs/abstracts/spire.htm>licensing
information</a>.  
#PRODUCT_END#

#PRODUCT# 
<a href=http://loki.cs.brown.edu:8081/graphserver/>Graph
Drawing Server</a>. Brown University - Can be used to either draw graphs,
or translate graph-descriptions and graph drawings from one format to
another. 
#PRODUCT_END#

#PRODUCT#
<a href="http://www.geom.umn.edu/locate/weboogl">WebOOGL</a>. University of Minnesota, Geometry Center - 3D graphics on the Web.
#PRODUCT_END#

#PRODUCT#
<a href=http://www.cs.bham.ac.uk/~amw/hyperspace/>Hyperspace</a>. The University of Birmingham, UK. -  Visualization of web pages while browsing. See
also the paper on Narcissus (Handley 1995).
#PRODUCT_END#

#PRODUCT#
<a href="http://www.contrib.andrew.cmu.edu/~krack">
KrackPlot</a>. CMU - Social network visualization program.
#PRODUCT_END#

#PRODUCT#
<a href="ftp://ftp.Uni-Bremen.DE/pub/graphics/daVinci">
daVinci</a>. University of Bremen, Germany - Ftp directory for daVinci,
a graph drawing program.
#PRODUCT_END#

#PRODUCT#
<a href ="http://www.aperture.com/docunet/index.html">
DocuNet</a> Aperture Technologies, for visualizing management networks. 
#PRODUCT_END#

#PRODUCT#
Apple's <A HREF="http://hypercard.apple.com/">Hypercard</A> tool.
#PRODUCT_END#

#PRODUCT#
<a href="http://oceana.sdsc.edu/Caidants/">Caida</a>. UC San Diego - Family of
network tools.
#PRODUCT_END#

#PRODUCT#
<a href="http://www.thomflex.fr/flexview.htm">FlexView</a>. ThomFlex - 
Network Management and Operation Software. </a>
#PRODUCT_END#

#CITATION#
Becker R.A., Eick S.G., and Wilks A.R., <a
href=http://www.bell-labs.com/user/eick/eick_bib.html>Visualizing
Network Data</a>, IEEE Transactions on Visualization and Computer
Graphics, 1(1), 16 - 28. March 1995.<a
href=http://www.otal.umd.edu/~bs02/antab/BE95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Eick, S.G., and Willis, G.J., Navigating Large Networks with Hierarchies,
Visualization 93 Conference Proceedings, San Jose, California, 204-210
Oct. 1993.
#CITATION_END#

#CITATION#
Fairchild, Kim M., Poltrock Steven E., and Furnas George W., <a
href=http://panda.iss.nus.sg:8000/kids/fair/webdocs/semnet/semnet-1.html>
SemNet: Three-Dimensional Graphic Representations of Large Knowledge
Bases</a>.
#CITATION_END#

#CITATION#
Feiner, Steven, Seeing the forest for the trees: hierarchical displays
of hypertext structures, Conference Sponsored by ACM SIGOIS and IEEECS
TC-OA on Office information systems, pp. 205-212.
#CITATION_END#

#CITATION#
Shneiderman, B.,
<A HREF="ftp://ftp.cs.umd.edu/pub/papers/papers/2160/2160.ps.Z">
Reflections on authoring, editing, and managing hypertext</A>, 
The Society of Text, Barrett, Ed., MIT Press (1989) 115-131. 
CS-TR-2160, CAR-TR-410
#CITATION_END#

#CITATION#
Marshall, Catherine C., and Shipman, Frank M.,III, Spatial hypertext:
designing for change, Communications of the ACM, Vol. 38, No. 8 (Aug.
1995), pp. 88-97. 
#CITATION_END#

#CITATION#
Quintana, Yuri, Kamel, Mohamed, and Lo, Andrew, Graph-based retrieval of
information in hypertext systems, SIGDOC '92. Proceedings of the 10th
annual international conference on 
Systems documentation, pp. 157-168. 
#CITATION_END#

#CITATION#
Lai, Patrick, and Manber, Udi, Flying through hypertext, Third annual
ACM conference proceedings on Hypertext '91, pp. 123-132.
#CITATION_END#

#CITATION#
Munzner, Tamara and Burchard Paul, <a
href=http://www-graphics.stanford.edu/papers/webviz/>Visualizing the
Structure of the World Wide Web in 3D Hyperbolic
Space</a>. Proceedings of VRML '95, (San Diego, California, December
14-15, 1995), special issue of Computer Graphics, ACM SIGGRAPH, New
York, 1995, pp. 33-38.<a
href=http://www.otal.umd.edu/~bs02/antab/MB95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Munzner, T., Hoffman E., Claffy K., and Fenner B., <a
href=http://www-graphics.stanford.edu/papers/mbone/>Visualizing the
Global Topology of MBone</a>, Proceedings of the 1996 IEEE Symposium
on Information Visualization. October 1996, San Francisco, CA.<a
href=http://www.otal.umd.edu/~bs02/antab/MH96.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Cox, K.C., and Eick, S.G., 3D Displays of Internet Traffic, In Proceedings
of Information Visualization '95 Symposium, (Atlanta, GA, October 30-31, 1995)
pages 129-131, IEEE, 1995.
#CITATION_END#

#CITATION#
Lamm, S.E., Reed, D.A., and Scullin, W.H., <a href=http://www-pablo.cs.uiuc.edu/Projects/VR/vr.html>RealTime Geographic Visualization
of World Wide Web Traffic</a>, In Proceedings of the Fifth International World
Wide Web Conference(Paris, France), May 6-10, 1996,1996
#CITATION_END#

#CITATION#
Munzner, T., Meyer, D., Buchard, P., and Levy S., <a href=http://www.geom.umn.edu/locate/weboogl>WebOOGL: Integrating 3D graphics and the Web</a>,Geometry Center,University of Minnesota.
#CITATION_END#

#CITATION#
Furnas, G.W. and Zacks, J., <a
href=http://www.si.umich.edu/~furnas/HomePage.html> Multitrees:
Enriching and Reusing Hierarchical Structure</a>, Proceedings of ACM
Human Factors in Computing Systems CHI'94, Boston, Massachusetts,
1994, 330-336.<a
href=http://www.otal.umd.edu/~bs02/antab/FZ94.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Mukherjea, S., Foley, J.D., and Hudson, S., Visualizing Complex
<a href=http://www.cc.gatech.edu/gvu/people/Phd/sougata/chi95/sm_bdy.html>
Hypermedia Networks through Multiple Hierarchical Views</a>.
Proceedings of ACM Human Factors in Computing Systems Chi'95, Denver
Colorado,1995,331-337.
#CITATION_END#

#CITATION#
Sarkar, Manojit, and Brown, Marc H., Graphical Fisheye View of Graphs, 
Communication of the ACM,37(12),73-84,Dec 1994
#CITATION_END#


#CITATION#
Frohlich, M. and Werner, M., <a
href="ftp://ftp.Uni-Bremen.DE/pub/graphics/daVinci/papers/techrep0594.ps.gz">
The Graph Visualization System daVinci - A User Interface for
Applications</a> - Technical report Department of Computer Science;
University of Bremen; September 1994.<a
href=http://www.otal.umd.edu/~bs02/antab/FW94.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Schaffer, D., Zuo, Z., Greenberg, S., Bartram, L., Dill, J., Dubs,
S. and Roseman, M. (1996). <a
href=http://fsd.cpsc.ucalgary.ca/projects/grouplab/papers/96-Fisheye.TOCHI/96-Fisheye.TOCHI.ps.zip>Navigating
Hierarchically Clustered Networks Through Fisheye and Full-Zoom
Methods</a>. ACM Transactions on Computer-Human Interaction, 3(2),
p162-188, June.
#CITATION_END#

#CITATION#
Andrews, Keith, <a href=http://info.iicm.tu-graz.ac.at/>Visualizing
cyberspace: Information visualisation in the Harmony internet
browser</a>, Proc. IEEE Information Visualization '95, IEEE Computer
Press, Los Alamitos, CA (1995), 97-104. <a
href=http://www.otal.umd.edu/~bs02/antab/KA95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Andrews, K., Kappe, F. and Maurer, H.,<a href="http://info.iicm.tu-graz.ac.at/Cjucs_root>Hyper-G: Toward the Next Generation of Network Information</a>
Technology, Journal of Universal Computer Science, 1(4), 306-330, April 1995.
#CITATION_END#

#CITATION#
Norman, K., Wright, P., <A
HREF="ftp://ftp.cs.umd.edu/pub/hcil/Reports-Abstracts-Bibliography/3090html/3090.html">
HyperTools for HyperTexts: supporting readers of electronic documents</A>, 
CS-TR-3090, CAR-TR-675.
#CITATION_END#

#CITATION#
Chi, Ed H., <a href="http://www.geom.umn.edu/docs/weboogl/>Webspace 
Visualization</a>, The Geometry Center, University of Minnesota.
#CITATION_END#

#CITATION#
Wood, A., Drew, N., Beale, R., Hendley, B., <a href="http://www.cs.bham.ac.uk/amw/hyperspace/">HyperSpace: Web Browsing with Visualisation</a>, Poster/Demo at
WWW'95, Darmstadt, Germany.
#CITATION_END#

#CITATION#
Hendley, R. J., Drew, N. S., Wood, A. S., Narcissus: Visualizing
information, Proc. IEEE Information Visualization '95, IEEE Computer
Press, Los Alamitos, CA (1995), 90-96.<a
href=http://www.otal.umd.edu/~bs02/antab/HD95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Birgisson, B., and Shannon, G., GraphView: An Extensible Interactive 
Platform for Manipulating and Displaying Graphs, Technical Report No. 295,
Computer Science Department, Indiana University, Bloomington, Indiana.
#CITATION_END#

#CITATION#
Fairchild, Kim M., Poltrock, Steven E., and Furnas, George W., SemNet:
Three-dimensional representations of large knowledge bases. In
Guindon, Raymonde (Editor), Cognitive Science and its Applications for
Human-Computer Interaction, Lawrence Erlbaum, Hillsdale, NJ (1988),
201-233.
#CITATION_END#

#CITATION#
Baecker, R., DiGiano, C. and Marcus, A., Software visualization
for debugging, Communications of the ACM 40(4) (April 1997), Pages
44-54.
#CITATION_END#

#CITATION#
Qiu, Chencheng and Shneiderman, Ben, <a
href=http://www.cs.umd.edu/~zzj/QiuPaper.ps>Graph-based dynamic query
interfaces and a prototype implementation</a>. <a
href=http://www.otal.umd.edu/~bs02/antab/CQBS.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Mackinlay, J.D., Rao,R. and Card,S.K.,  <a
href=http://www.acm.org/sigchi/chi95/Electronic/documnts/papers/jdm_bdy.htm>An
Organic User Interface For Searching Citation Links</a>, CHI'95
Proceedings. It provides a "butterfly" view. <a
href=http://www.otal.umd.edu/~bs02/antab/JR95.html>[Annotated
Abstract]</A>
#CITATION_END#

#CITATION#
Collaud,G., Dill, J., Jones, C.V., Tan,P., <a
href=http://www.cs.umbc.edu/~cikm/1995/npiv/gcollaud/paper-v2.html>A
Distorted-View Approach to Assisting Web Navigation</a>.
#CITATION_END#

#CITATION#
Leung,Y.K., Spence,R. and Apperley,M.D., Applying bifocal
displays to topological maps. International Journal of Human-Computer
Interaction 7(1) 79-98 (1995).<a
href=http://www.otal.umd.edu/~bs02/antab/LS95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Ware, Colin and Franck, Glenn,<a
href=http://www.acm.org/pubs/contents/journals/tog/1996-15/>Evaluating
stereo and motion cues for visualizing information nets in three
dimensions</a>. ACM Transactions on Graphics 15(2) (April 1996). <a
href=http://www.otal.umd.edu/~bs02/antab/WF95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Kranzlmller,D., Grabner, S. and Volkert, J., Event
Graph Visualization for Debugging Large Applications, SPDT'96,
108-117. <a
href=http://www.otal.umd.edu/~bs02/antab/KG96.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Dykes, S.G., Zhang, X., Shen,Y., Jeffery, C. L. and Dean, D.W., <a
href=http://rabbit.cs.utsa.edu/abs95-3-3.html>*Graph: a tool for
visualizing communication and optimizing layout in data-parallel
Programs</a>. University of Texas at San Antonio. <a
href=http://www.otal.umd.edu/~bs02/antab/DS95.html>[Annotated
Abstract]</a>
#CITATION_END#

#CITATION#
Rennison, Earl, Galexy of News: An Approach to Visualizing and Understanding
Expansive News Landscape.,Proceedings of UIST,November 2-4, 1994, Marina
del Rey, California, 3-11.
#CITATION_END#

#CITATION#
Mukherjea, S., Foley, J., Hudson, S., Interactive Cluster for Navigating,
In Hypermedia Systems. In Proceedings  of the ACM European Conference of 
Hypermedia Technology, 136-144, Edinburgh, Scotland, Sept. 1994.
#CITATION_END#

#CITATION#
Consens, M.P., and Hasa, M.Z., Supporting Network Management through Declaratively Specified Data Visualization, Proc. IEEE/IFIP Third International Symposium on Integrated Netork Management, III, 724-738, April 1993.
#CITATION_END#

#CITATION#
Ayers, E.Z., and Stasko, J.T., Using Graphic History in Browsing the World Wide Web, Technical report Georgia Tech.
#CITATION_END#

#CITATION#
Erlingsson U., and Krshnamoothy M., <a
href=http://www.cs.rpi.edu/projects/pb/graphdraw/> Interative Graph
Drawing on the World Wide Web</a>.
#CITATION_END#

#CITATION#
Batagelj V., and Mrvar A., <a
href=http://vlado.mat.uni-lj.si/pub/networks/pajek/>Pajek - Program
Package for Large Network Analysis</a>.
#CITATION_END#

#CITATION#
Crutcher, L.A., Lazar, A.A., Feiner, S.K., and Zhou, M., Managing
Networks Through a Virtual World, IEEE Parallel & Distributed
Technology, 3(2), Summer 1995.
#CITATION_END#

#CITATION#
Rhyne, T.M., Brett, G., Brutzman, D. and Cox, D.J., Exploiting Networks
for Visualization and Collaboration: No Network Roadblocks?,Computer 
Graphics, Vol. 28, Number Annual Conference Series, pp. 481-482,1994.
#CITATION_END#

#CITATION#
Lokuge, Ishantha and Ishizaki, Suguru, GeoSpace: An Interactive Visualization System for Exploring Complex Information Spaces, Proceedings of 
ACM CHI'95 Conference on Human Factors in Computing Systems, 
Papers: Information Visualization, Vol. 1, pp. 409-414, 1995.
#CITATION_END#

#CITATION#
Howard, T.L.J., TopDraw: A Structure Network Visualiser for PHIGS,
Computer Graphics Forum, 9(2), pp. 139-147, June 1990.
#CITATION_END#

#CITATION#
Busch, C. and Gross, M.H., Interactive neural network texture analysis and visualization for surface reconstruction in medical imaging, Computer 
Graphics Forum, 12(3), p. C49-C60, 1993.
#CITATION_END#

#CITATION#
Eick, Stephen G., Aspects of network visualization, IEEE Computer Graphics and Applications, 16(2), pp. 69-72, March 1996.
#CITATION_END#

#CITATION#
Pfluger, T. and Maier, M., BRSIM - a hybrid-simulation and visualization tool for bridged LANs, Proc. EFOC & N '93 June 30 - July 2, Vol. PON, pp. 126-130, 1993.
#CITATION_END#

#CITATION#
Bubak, M., Funika, W., and Moscinski, J., Monitoring of performance of PVM applications on virtual network computer, pplied parallel computing: industrial computation and optimization: Third International Workshop, PARA '96 Lyngby, Denmark, August 18--21, 1996: proceedings",, Lecture notes in computer science, Vol. 1184, pp. 147-156, Springer-Verlag, 1996.
#CITATION_END#

#CITATION#
Hughes, Doug, Using Visualization in System and Network Administration,
10th Systems Administration Conference (LISA'96) September 29--October 4,
1996. Chicago, IL",, pp. 59-66, USENIX, September 29- oct 4 1996.
#CITATION_END#

#CITATION#
Zhang, Kang and Marwaha, G., Visputer --- a graphical visualization 
tool for parallel programming, The Computer Journal, 38(8), pp. 658-669, 1995.
#CITATION_END#

#CITATION#
Hart, John C., Visualization in networked environments,
Communications of the ACM, 35(6), pp. 42-43, June 1992.
#CITATION_END#

#CITATION#
Hüser, C., Reichenberger, K., Rostek, L., and Streitz, N.A.,
Knowledge-based editing and visualization for hypermedia encyclopedias,
Communications of the ACM, 38(4), pp. 49-51, April 1995.
#CITATION_END#

#CITATION#
Kumar, H., Plaisant, C., Teittinen, M., and Shneiderman, B., 
Visual Information Management for Network Configuration,
Technical Report, University of Maryland, College Park, 
Number CS-TR-3288,June 1994.
#CITATION_END#

#CITATION#
Plaisant, C.,
<A HREF="ftp://ftp.cs.umd.edu/pub/papers/papers/2559/2559.ps.Z">
Guide to opportunities in volunteer archaeology - case study of the use
of a hypertext system in a
museum exhibit</A>, 
Hypertext/Hypermedia Handbook, Berk E. & Devlin, J., Eds., McGraw-Hill
(1991) 498-505. Also
Sparks of Innovation in Human-Computer Interaction, Shneiderman, B.,
Ed., Ablex (June 1993)
223-229. 
CS-TR-2559, CAR-TR-523
#CITATION_END#

#CITATION#
McDaid, E.G. and Guest, S.P., On the design of a graphical 
transition network editor, Proceedings of the 5th Interdisciplinary 
Workshop in Informatics and Psychology : Visualization in 
Programming, LNCS, Vol. 282, pp. 142-150, Springer, May 1986.
#CITATION_END#

#CITATION#
Ashton, Paul, Using interaction networks for visualization of 
message passing, SIGCSE Bulletin (ACM Special Interest Group on 
Computer Science Education), pp. 272-276, 1997.
#CITATION_END#

#CITATION#
Ashton, P. and Penny, J., A Tool for Visualizing the Execution of 
Interactions on a Loosely-coupled Distributed System, 
Software---Practice and Experience, 25(10), pp. 1117-1140, October 1995.
#CITATION_END#

#CITATION#
Kochevar, Peter D. and Wanger, Leonard R., Tecate: A Software 
Platform for Browsing and Visualizing Data from Networked Data Sources,
Digital Technical Journal of Digital Equipment Corporation, 
7(3), pp. 66-83, Fall 1995.
#CITATION_END#

#CITATION#
Marchionini, G., Crane, H.,
Evaluating hypermedia and learning: Methods and results from the Perseus
project, 
ACM Transactions on Information Systems, vol. 12, #1 (Jan. 1994) 5-34.
#CITATION_END#

#CITATION#
Rivlin, E., Botafogo, R., Shneiderman, B.,
Navigating in hyperspace: designing a structure based toolbox, 
Communications of the ACM, vol. 37, #2, (Feb. 1994) 87-96. 
CS-TR-2861, CAR-TR-606
#CITATION_END#


#PROJECT#
<a href=http://rabbit.cs.utsa.edu/min-paragrph.html>
MIN-Graph</a>. University of Texas at San Antonio - The tool can be
used to instrument, analyze and visualize the performance of multiple
processors, to help user find inefficiency.
#PROJECT_END#

#PROJECT#
<a href=http://www.cs.brown.edu/people/ag/research/talk.ps.gz>
Giotto3D</a>. Brown University - Draws 2D representation of a directed
acylic graph (DAG) first, and then lifts vertices along a third
dimension such that the drawing is upward in the third dimension. The
motivation is that upward drawings are more readable because the
placement of vertices reflects the hierarchy. It applies to any
DAG's. The interaction support include navigation (rotation,
translation, zooming), filtering (show only selected objects, show
only the descendents of selected objects, (future) a query language),
focus+context display (graying out objects not in focus).
#PROJECT_END#

#PROJECT#
<a href=http://www.bell-labs.com/project/visualinsights/brochure/>
Visual Insights</a>. Lucent Technologies - general network
visualization tool. It has been used to do geographically-based network
visualization (using animation to show changes over time).
#PROJECT_END#

#PROJECT#
<a href=http://heiwww.unige.ch/girardin/cgv/>Cyberspace geography
visualization</a>. Graduate Institute of International Studies,
Switzerland - Each resource on the Web is mapped to a vector. A
self-organizing neural network is used to reduce the
dimensionality. Symbolisation (put things that that look like rivers
or mountains) between resources that are actually far apart but are
close after the dimension reduction.
#PROJECT_END#

#PROJECT#
<a href=http://www.gup.uni-linz.ac.at:8001/research/debugging>
Debugging of Distributed Memory Machines</a>. Johannes Kepler University Linz - Large Application debugger. See the paper
(Kranzlmüller 1996).
#PROJECT_END#

#PROJECT# <a
href="http://www.omg.unb.ca/hci/projects/gv3d/index.html"> GV3D
</a>. Univesity of New Brusnwick - GV3D was developed to allow users
to visualize the structure of networks of information (and, in
particular, object-oriented software code) as a three-dimensional
graph.  
#PROJECT_END#

#PROJECT#
<a href="http://www.cs.tamu.edu/research/vislab/www/projects/networks.html">
Scientific Visualization Laboratory </a>. Texas A&M - Modeling and
visualization of large-scale networks.
#PROJECT_END#

#PROJECT#
<a href="http://www-graphics.stanford.edu/projects/rivet/">
Visualization of Computer Systems</a>. Stanford - project on efficient
creation and use of visualizations for complex systems.
#PROJECT_END#

#PROJECT#
<a href="http://www.geom.umn.edu">Geometry Center, U. of Minnesota</a>. 
Several graph visualization tools, including <a
href="http://www.geom.umn.edu/projects/visualization/">Geomview</a> for
viewing and manipulating geometric objects in 3-D; <a
href="http://www.geom.umn.edu/software/orrery/">Orrery</a> for
displaying and animating an accurate model of the solar system; <a
href="http://www.geom.umn.edu/~worfolk/SaVi/">SaVi</a> for the
visualization and analysis of satellite constellations.
#PROJECT_END#

#PROJECT#
<a href="http://www.research.att.com/sw/tools/graphviz/">Graphviz</a>.
 AT&T research group - graph drawing tools for Unix or MS-Window.
#PROJECT_END#

#PROJECT#
<a href="http://www.cc.gatech.edu/gvu/internet/MosaicG/MosaicG_1.0_about.html"> WWW Graphic History Browser</a>. Georgia Tech - extension to NCSA Mosaic that
tracks the hypertext links in a browsing session.
#PROJECT_END#

#PROJECT#
<a href="http://www.ncsa.uiuc.edu/SDG/IT94/Proceedings/Searching/doemel/www-fall94.html"> WebMap </a> A Graphical Hypertext Navigation Tool.
#PROJECT_END#

#PROJECT#
<a href="http://www-midas.slac.stanford.edu:80/midasv21/welcome.html"> Midas World-Wide Web</a>. Stanford - HyperText browser.
#PROJECT_END#

#PROJECT#
<a href="http://www.stg.brown.edu/projects/hypertext/landow/HTatBrown/Intermedia.html"> Intermedia </a>. Brown University - WWW navigation tool.
#PROJECT_END#

#PROJECT#
<a href=http://eldorado.stern.nyu.edu/~tisakowi/rmm/>RMM</a>. New York University - The Relationship Management Methodology for Hypermedia Design.
#PROJECT_END#

#PROJECT#
<A
HREF="http://anarch.ie.utoronto.ca/people/gene.html/publications/misc/qrl.htm
l">
Queries-R-Links graphical text browser </A>
Uses hypertext methods to produce more powerful
queries that are easier to perform.
#PROJECT_END#

#PROJECT#
UMCP HCIL's
<A HREF="http://www.cs.umd.edu/projects/hcil/Research/hyperties.html">
HyperTIES</A>
#PROJECT_END#

#VIDEO#
Cox, Donna and Patterson, Robert, A Visualization Study of Networking, 
National Center for Supercomputing Applications, University of Illinois, 1991.
#VIDEO_END#

#VIDEO#
Nation, David, <a href=http://www.cs.umd.edu/projects/hcil/Research/video97.html>Viewing websites using a hierarchical table of contents browser: WebTOC</a>, University of Maryland at College Park, Human Computer Interaction Lab. Video Reports, 1997.
#VIDEO_END#

#VIDEO#
Gunn C., and Maxwell D., Not Knot. Jones & Bartlett, 1991.
#VIDEO_END#

#VIDEO#
Zhao, Wei and Levy, Rina, <a href=http://www.cs.umd.edu/projects/hcil/Research/video95.html>BizView : Managing Business and Network Alarms</a>, University of Maryland at College Park, Human Computer Interaction Lab. Video Reports, 1995.
#VIDEO_END#

#VIDEO#
Carr, David, <a href=http://www.cs.umd.edu/projects/hcil/Research/video95.html>Animated Specifications Using Interaction Object Graph</a>, University of Maryland at College Park, Human Computer Interaction Lab. Video Reports, 1995.
#VIDEO_END#

#VIDEO#
Plaisant, C., Kumar, H.,  Teittinen, M., Shneiderman, B., <a href=http://www.cs.umd.edu/projects/hcil/Research/video94.html>Visual information management for satellite network configuration</a>, University of Maryland at College Park, Human Computer Interaction Lab. Video Reports, 1994.
#VIDEO_END#

#VIDEO#
Brown, Marc H., Meehan, James R., Sarkar, Manojit, <a href=http://www.acm.org/~perlman/sigchi/608935.html>Browsing Graphs Using a Fisheye View</a>, ACM SIGCHI INTERCHI 93.
#VIDEO_END#

#VIDEO#
Dubberly, H., and Mitsch, D., HyperCard, Apple Computer, Inc. and Clement Mok Designs, CHI'92 Special Video Program, 1992.
#VIDEO_END#