As it so happens, scientists give talks at
conferences, local seminars, or workshops.
When I started to do my slides using
a presentation program instead of the old-fashioned transparencies,
I also started to put a few representative ones onto my
webpage. Below are some.
A talk that I gave as part of a Webinar series for the
Infrastructure in Geodynamics initiative, an NSF funded
center dedicated to providing the geophysics community with
high-quality computational software. The talk is about what
can be achieved by using existing software libraries.
The youtube video above shows the slides and has my voice as
audio. (During processing, the audio was lost between minutes 1
and 3 but resumes after that.)
This is a talk I gave while visiting my friend and colleague
Moritz Diehl, an expert in optimization theory, in
Leuven, Belgium. It is a talk about
the many steps one has to go for biomedical
imaging, but actually starts explaining the
reasons why one would need yet another one of these
imaging methods. It goes all the way from introducing a
simple model problem to inverting real measurement data with
an adaptive finite element program.
This is a talk given in January 2005 in Pittsburgh. The topic
is duality-based error estimates. I give an
introduction into why the estimation techniques usually used
today are not really satisfactory in practice and how
duality-based estimates can mitigate this. I then move on to
show how such techniques can be applied to inverse problem, a
case where traditional estimation techniques have completely
failed because the problems are not only nonlinear but also
ill-posed and the stability estimates one usually needs are
unknown or inexistant.
A talk given at the meeting of the Industrial
Affiliates of the Center for Subsurface Modeling at
which I have a position. This talk is about
optimization techniques and their use to find optimal
locations for wells into oil reservoirs.