The Fifth Inverse Days in Oulu, December 10-11, 1999

University of Oulu

The Finnish Inverse Problems Society (FIPS) arranges the Fifth Inverse Days in Oulu on December 10-11, 1999.

Conference will take place at the University of Oulu.

Conference fee is 200 mk. It should be paid to the FIPS bank account (MERITA 101230-207918, reference number: 13) before the Conference.


Participation: Contact Sari Mäenpää,, tel. 08-553 1749. Those who are interested to give a talk are also asked to submit the suggested title of their talk. The registration deadline is November 15th.


Hotel Apollo
Asemakatu 31
90100 OULU
tel. 08-374 344
Thu-Fri 1 person room
2 persons room
FIM 350
FIM 460
Fri-Sat 1 person room
2 persons room
FIM 320
FIM 380

There are also few University guestrooms available for FIM 130 per night.

Those who would like to have a guestroom or have problems about their hotel reservations should contact Barbara D'Ambrogi,


For easier printing the following table is also available as a single page

Friday, 10th December 1999,
Auditorium KE1139
9.30-9.40 Opening
9.40-10.05 Vladimir Sharafutdinov: Spectral rigidity of Anosov manifolds
10.10-10.35 Sari Mäenpää: White noise as a priori

11.00-11.25 Johanna Tamminen: Gas profile retrieval from stellar occultation measurements
11.30-11.55 Harri Auvinen: Inversion algorithms for OSIRIS satellite instrument

13.00-13.25 Matti Lassas: On determining 2-dimensional Riemannian manifold from the Dirichlet-to-Neumann mapping
13.30-13.55 Erkki Somersalo: Structural priori information in inverse problems
14.00-14.25 Päivi Vauhkonen: Errors due to the model truncation in 3D EIT

15.00-15.25 Ville Kolehmainen: Boundary estimation in Optical Tomography
15.30-15.55 Keijo Ruotsalainen: On a geometric inverse problem for heat equation
16.00-16.25 Arto Voutilainen: A non-homogeneous regularization method for the estimation of narrow size distributions
16.30-16.55 Samuli Siltanen: Electrical impedance tomography and Nachman's method

DINNER (at 19.00 in Restaurant Huviretki in Hotel Cumulus on Kajaaninkatu 17)
Saturday, 11th December 1999,
Auditorium L7
9.30-9.55 Andrey Osipov: On some remarks concerning the simulation of stationary Gaussian processes
10.00-10.25 Jukka Liukkonen: Complex Riemannian metric and absorbing boundary conditions
10.30-10.55 Aku Seppänen: Fluid dynamics and state estimation in EIT
11.00-11.25 Markku Lehtinen: GUMMO project - development of priori distributions for function-valued inversion problems

12.00-12.25 Elena Kozlovskaya: An algorithm of geophysical data inversion based on non-probabilistic presentation of a priori information and definition of Pareto-optimality
12.30-12.50 Samuli Siltanen: Industrial X-ray tomography at Instrumentarium Imaging
12.50-13.15 Thomas Kolehmainen: Identification of Acoustic Boundary Conditions as an Inversion Problem
13.20-13.30 Discussion and closing

LUNCH (at 14.00 in Vietnamese Restaurant Huong Duong on Asemakatu 26)

Registered Participants

Non-scientific Program

Friday: Conference Dinner at 19.00, Restaurant Huviretki (Hotel Cumulus, Kajaaninkatu 17). Price is FIM 96-115 depending on the chosen menu.

Saturday: Lunch at 14.00, Vietnamese Restaurant Huong Duong (Asemakatu 26). Price is FIM 50.

REMEMBER TO SIGN-UP!! Barbara D'Ambrogi

Questions, comments, etc.

Contact Sari Mäenpää, Barbara D'Ambrogi or Mikko Orispää.

City of oulu
City of Oulu

Maps of University of Oulu

Mikko Orispää <>, 2.12.1999