Title: Things about Colour that Everybody should KnowIt's a while since I talked about the basics of colour perception, and I notice that a bunch of recent technical presentations take for granted some knowledge that appears no longer to be common knowledge. This talk is designed to go over the basics for the benefit of people who have come lately to the lab.
Splines and Graphics Seminar
Is there one?
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
MASTER'S THESIS PRESENTATION
-Wednesday, July 19, 1995 *Note date change*
Michael Nidd, graduate student, Dept. Comp. Sci., Univ.
Waterloo, will speak on "Site-Specific Indoor Radio
Signal Strength Analysis Using Ray Tracing and
Radiosity Techniques".
TIME: 2:30-3:30 p.m.
ROOM: DC 1331
ABSTRACT
As wireless networks are installed at more locations,it will become more important that they are organized
in an efficient layout. This requires prediction tools
that use site-specific information to give better
results than the traditional statistical models. While
counting the number of walls between the transmitter
and receiver can provide a rough approximation, more
comprehensive techniques can make better predictions.
This report explores ray tracing as a method for
predicting signal strength in an indoor wireless radio
environment. It presents a dynamic ``cone tracing''
algorithm which offers a reasonable compromise between
execution time and accuracy. This technique bypasses
the duplication of effort present in similar previous
attempts to analyze the signal strength in an entire
room, instead of just at a single receiver location.
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
SYMBOLIC COMPUTATION SEMINAR
-Monday, July 17, 1995
Andreas Strotmann, Cologne University (Germany),
Computer Center, will speak on "OpenMath: Objectives
and Structure".
TIME: 1:00 - 2:00 p.m.
ROOM: DC 1304
ABSTRACT
OpenMath aims at providing a universal means of
communicating mathematical information between software
systems.
The OpenMath Objectives group has submitted to the
OpenMath community a proposal concerning the design
goals of an OpenMath standard. The proposal discusses
the need for a structured approach towards designing
both the language for representing mathematical
information and the protocol for exchanging
representations in this language among mathematical
software systems.
The talk will cover this proposal, concentrating on the
structure proposed therein. Recent developments and
experience with a prototype will also be discussed.
DEPARTMENT OF COMPUTER SCIENCE
UNIVERSITY OF WATERLOO
SEMINAR ACTIVITIES
SYMBOLIC COMPUTATION SEMINAR
-Tuesday, July 18, 1995
Gregory Reid, Department of Mathematics, University of
British Columbia, and Center for Experimental and
Computational Math (CECM), Simon Fraser University,
will speak on "Radical Rif and other Geo-Algebraic
Algorithms for PDE".
TIME: 3:30-4:30 p.m.
ROOM: DC 1331
ABSTRACT
We discuss algorithms which mix differential algebraic
and geometric methods for PDE; including Buchberger's
algorithm and algorithms for determining the radical of
a polynomial ideal. In particular we describe the
radical algorithm which simplifies analytic nonlinear
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systems of partial differential equations to radical
reduced involutive form.
Applications include the determination of the Cartan
structure of Lie pseudogroups and the application of
various classical and nonclassical symmetry methods
for PDE; general relativity and other applications in
which nasty coupled nonlinear PDE arise.
8. Lab Cleanup (till 2:30pm or 5 minutes, whichever is longer)