Symposium on Visualizing Time-Varying Data: Call for Participation

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Mon, 13 Feb 1995 00:21:50 -0800


Symposium on Visualizing Time-Varying Data

September 18-19, 1995 Williamsburg, Virginia

Sponsored by the Institute for Computer Applications in Science
and Engineering (ICASE) and NASA Langley Research Center (LaRC)
in cooperation with ACM SIGGRAPH.


1) Symposium Overview
2) Papers
3) Discussion Sessions
4) Visualization "Home Videos"
5) Datasets On Line
6) Submissions
7) Electronic Information
8) Symposium Organizers

1) Symposium Overview

Time-varying datasets present difficult problems for both analysis
and visualization. For example, the data may be terabytes in size,
distributed across mass storage systems in remote locations, with
time scales ranging from femtoseconds to centuries. The purpose of
the symposium is to bring the producers of time-varying datasets
together with visualization specialists to assess open issues in the
field, present new solutions, and encourage collaborative

Morning sessions will be devoted to papers, while afternoons will
focus on presentations of current work and group discussions.
Attendance is limited to 80 participants.

Researchers from such fields as aerospace, atmospheric sciences,
structural analysis, chemistry, and medicine, as well as developers
of software and hardware systems for visualization will benefit from
attending the symposium.

2) Papers

Original papers will be reviewed for acceptance and publication in
the proceedings. Final versions of accompanying videos will appear
in the video proceedings. Submit 5 copies of the full paper (maximum
6000 words) and 5 copies of any accompanying videotape (VHS only;
maximum 5 minutes) with your name, address, phone, fax, and e-mail
by May 1, 1995, to the Symposium Secretary.

Suggested topics include:

Display of Data
* Interpolating time-varying geometry
* Display of time-varying vector fields
* Sonification

* User interfaces for managing the time dimension
* Managing frame rates and latency
* System architecture for time-varying visualization
* Navigating through large time-varying datasets

Data Management
* Data management and organization
* Compression/decompression of massive time-varying datasets

Problems for which current techniques are inadequate

3) Discussion Sessions

There will be 3-4 discussion sessions on topics selected from advance
proposals. These sessions provide a forum for you and your colleagues
to define outstanding problems or set long-range research goals.
Authors of accepted proposals will serve as discussion leaders. Send
your 1-page proposal with your name, address, phone, fax, and e-mail,
by May 1, 1995, to the Symposium Secretary.

4) Visualization "Home Videos"

There will be a single session for informal 10-minute presentations
of current work, preferably in video format. This can be unedited
footage of work-in-progress relating to visualization of time-varying
data. Send a 1-paragraph description of the work plus a representative
picture (or video segment) with your name, address, phone, fax, and
e-mail, by August 25, 1995, to the Symposium Secretary.

This forum is also open to researchers who have acquired or produced
time-varying data and are in search of a useful visualization of it.
Such submissions should describe (in 1 page) the nature of the problem
in need of visualization.

5) Datasets On Line

Here's an opportunity for you to get the world working on your
tough visualization problems!

In conjunction with the 1995 ICASE/LaRC Symposium on
Visualizing Time-Varying Data, a repository of time-varying
datasets is being established at ICASE. Datasets accepted for this
repository will be made publicly available on the Internet to serve as
benchmark applications for visualization researchers and software
developers. The intent is to provide a collection of data which poses
new or challenging problems not readily addressed by existing
visualization systems.

Dataset Proposals

Because of space limitations, and to ensure that contributions meet
the guidelines described below, dataset proposals will be screened
by the Symposium organizers for interest and content. Accepted
proposals will be made available on the World Wide Web to serve
as documentation and pointers to the data. We therefore
encourage proposals in the form of HTML documents (preferred) or
ASCII text. Embedded links to personal home pages and
sponsoring organizations may be included as appropriate (see
below). Proposals should supply the following information:

* A descriptive title.

* Name(s), address(es), affiliation(s), phone and FAX
numbers, and e-mail address(es) of the submitter(s). One
individual should be designated as a point of contact for
technical questions regarding the contents of the dataset.
Since we expect that accepted datasets will remain
available on the network for a prolonged period of time,
stable e-mail addresses should be provided.

* If applicable, the names and affiliations of other individuals
who contributed to the collection or production of the
dataset, and a list of organizations which sponsored the

* A brief description of the dataset and the application which
produced it. This should include a justification of why the
dataset is considered to be interesting or challenging from a
visualization standpoint.

* If available, a representative image from one timestep of this
or a closely related dataset.

* A short name for the dataset (16 characters or less).

* The size of the dataset and the number of timesteps it
contains. The total size of the data, after compression with
the standard UNIX compress utility, must not exceed 2
gigabytes. Subsets of larger datasets will be considered as
long as the subset does not exceed 2 GB.

* A detailed description of the dataset format, including the
spatial organization or grid structure, temporal and spatial
units of measure, bounding boxes, number and type of
variables, limits on data ranges, etc. This should be at a
level which will allow someone who is unfamiliar with the
dataset to develop code to read and process its contents.
Individual timesteps must be contained in separate files to
facilitate retrieval of subsets, and filenames should reflect
the ordering in time. Data may be in either ASCII or binary
form. If binary data is submitted, the byte-order must be
specified, integers must be represented in
two's-complement form, and floating-point numbers must
be in ANSI/IEEE Standard 754 format.

Dataset proposals must be submitted by May 1, 1995 to the
Symposium Secretary.

Notification of Acceptance and Submission of Data

Submitters of dataset proposals will be notified of acceptance via
e-mail by July 1, 1995. Detailed instructions for submitting the
actual data will be supplied at that time. Data is due at ICASE via
FTP or 8mm tape by August 25, 1995.


The names and affiliations of the submitters, contributors, and
sponsors will be made available along with accepted datasets. As a
matter of professional courtesy, recipients of the data will be asked
to acknowledge its source when they use it in their own work, and
to notify the submitters if they achieve any significant visualization
results involving a dataset.

Authorization to Redistribute

By submitting data to this repository, you are certifying that
ICASE and NASA Langley may freely redistribute the data
anywhere in the world for any purpose, and that you are
authorized to make the data available in this manner.

6) Submissions

Mail all submission materials to the Symposium Secretary:

Emily Todd (
Mail Stop 132C
NASA Langley Research Center
Hampton, VA 23681-0001
804/864-2175 fax: 804/864-6134

Materials must be received by their deadline dates.

May 1
* Papers due
* Discussion proposals due
* On-line dataset proposals due

July 1
* Notification of acceptance

August 25
* Final camera-ready version of papers and videos due
* "Home video" descriptions due
* On-line datasets due

7) Electronic Information

An electronic version of this call, together with information on
registration/accommodations and guidelines for submissions, is
available on the World Wide Web at

or by sending mail (no subject of message-body required) to

8) Symposium Organizers

Program Committee
Lambertus Hesselink, Stanford (Program Chair)
Bob Haimes, MIT
Chuck Hansen, LANL
David Lane, CSC (NASA Ames)
Nelson Max, LLNL
Bill von Ofenheim, NASA LaRC
Lloyd Treinish, IBM Watson
Val Watson, NASA ARC

Symposium Co-Chairs
David C. Banks, ICASE
Kathy Stacy, NASA LaRC

Audio/Visual Chair
Kurt Severance, NASA LaRC

Publicity Chair
Kwan-Liu Ma, ICASE

Symposium Secretary
Emily Todd, ICASE