Bayes Comp 2023 is the third edition of the conference series with previous events in Florida 2020 and Barcelona 2018. It is also a reincarnation of the popular MCMSki events. Bayes Comp is the biennial conference of the Bayesian Computation Section of the International Society for Bayesian Analysis. 

Tamara Broderick, Massachusetts Institute of Technology, USA

Anthony Lee, University of Bristol, UK

Veronika Rockova, The University of Chicago Booth School of Business, USA 

The call for contributed talks and posters has been extended. Extended deadline is 14 October (original deadline was 30 September), and submissions should be done via Google form: https://forms.gle/BgqPpHXwsqZPR6ac6

The call for invited session proposals is closed (extended deadline was 22 August, and original deadline 7 August). 

If you have any questions, please send via email to bayescomp2023@gmail.com

Three satellite events shall be organised prior to the Bayes Comp. They shall be co-located at the same venue with Bayes Comp.

1. Bayesian Inference of Epidemics by Alice Corbella and Gareth Roberts https://warwick.ac.uk/fac/sci/statistics/staff/academic-research/corbella/bcepidemics2023

2. Bayesian computing without exact likelihoods by Antonietta Mira, Christian Robert, Heikki Haario, Leah South, Chris Drovandi and Umberto Picchini.

3. Uncertainty quantification and inverse problems by Andreas Rupp et al.

In Levi, being impressed by the natural surroundings is inescapable – from river valleys and frozen lakes up to the fells with spectacular views over the Lappish landscape, Levi is all about northern nature at its best. During the winter months, from mid-November to mid-May, Levi is Finland’s most popular ski resort with a total of 44 runs serviced by 28 lifts.

The Kittilä airport is a 15-minute drive away from Levi’s mountain village. An airport shuttle bus runs from the Kittilä airport to Levi after all scheduled flights. Taxis and car rentals are available at the airport.

• Finnair has 4 daily flights between Helsinki and Kittilä. 
• Lufthansa has 2 flights between Munich and Kittilä on Saturdays.
• Air France has 1 flight between Paris and Kittilä on Saturdays.
• Air Baltic flies from Riga to Kittilä 11 March (this is season's last flight)
• TUI Netherlands flies from Amsterdam and Rotterdam to Kittilä on Saturdays and Sundays.
• There are also several charter flights from other European destinations. 

The closest train station is in Kolari, from where you can get to Levi by bus (80 km). Kolari is served by night trains from Helsinki. Alternatively, you can use Rovaniemi station (170 km from Levi).

Conference hotel is Hotel Levi Panorama:

• We have a Monday-Friday quota in the hotel with rooms priced 172-194 (standard/superior single/twin). Please note that the hotel has limited capacity Sunday-Monday. Hence, early booking is advised.
• Hotel booking code: ALLBAYESCOMP 
• For participants with limited budgets, there is shared rooms at 8 and 12 person villas with pricing starting 30 or 60 euros (shared/single double room) per night.
• In addition, in Levi, there is a variety of hotels, cabins, apartments, and more from 1 to 5 stars. Accommodation possibilities for all price ranges are available via https://www.levi.fi/en/ski

Conference facilities include auditorium and lecture rooms, enabling up to 8 parallel sessions. We will stream auditorium session from Monday to Friday (but not the parallels). We have modern easy to use conference equipment and high-speed communications, thus ensuring that meeting will run smoothly.

Childcare: Bayes Comp aims to be a family-friendly meeting. The target is to organise childcare. Due to limited resources, we encourage everyone planning to attend with kids, to contact Miracle Amadi (miracle.amadi@lut.fi) as soon as possible. We would appreciate to know the number of kids and their age ranges (only limited number of childcare is available). We will follow the first contact first served policy.

The tentative rough outline of the programme is below, the programme is subject to changes.

Sunday 12 March

• 18.00-20.00 Satellite opening

Monday 13 March: 

• 09.20-10.10 Satellite I
• 10.10-10.30 Coffee
• 10.30-12.00 Satellite II
• 12.00-15.00 Lunch & Ski
• 15.00-18.30 Satellites III-IV

Tuesday 14 March

• 09.20-10.10 Satellite V
• 10.10-10.30 Coffee
• 10.30-12.00 Satellite VI
• 12.00-15.00 Lunch & Ski
• 15.00-18.00 Satellite VII-VIII

Wednesday 15 March

• 09.20-10.10 Keynote I
• 10.10-10.30 Coffee
• 10.30-12.00 Parallel I
• 12.00-15.00 Lunch & Ski
• 15.00-16.30 Parallel II
• 16.30-18.00 Parallel III
• 18.00-20.00 Posters

Thursday 16 March

• 09.20-10.10 Keynote II
• 10.10-10.30 Coffee
• 10.30-12.00 Parallel IV
• 12.00-15.00 Lunch & Ski
• 15.00-16.30 Panel discussion
• 16.30-18.00 Parallel V
• 18.00-20.00 Dinner

Friday 17 March

• 09.20-10.10 Keynote III
• 10.10-10.30 Coffee
• 10.30-12.00 Parallel VI
• 12.00-13.00 Lunch
• 13.00-14.30 Parallel VII
• 15.00-17.30 Parallel VIII
• Poster Prizes, Closing Remarks

Registration fees for Bayes Comp (EUR):  (through Oct 31; through Jan 14; late starting Jan 15)

• Reduced -- member of ISBA: 125, 150, 175
• Reduced -- non-member of ISBA; 165, 190, 215
• Regular -- member of ISBA: 250, 300, 350
• Regular -- non-member of ISBA: 350, 400, 450

Satellites 

• Reduced -- member of ISBA: 90, 110, 130
• Reduced -- non-member of ISBA; 120, 140, 160
• Regular -- member of ISBA: 180, 220, 260
• Regular -- non-member of ISBA: 250, 290, 340

Eligibility criteria for reduced fee: All students, postdocs and other early career researchers with limited or no travel funding, all participants from developing countries, pensioners, and other similar cases. All the participants wishing to have reduced fee can choose the reduced fee based on self-assessment, and no formal application is needed.

Registration and payment will be opened late September 2022.

There will be a budget for travel support for students, early-career researchers, and researchers with limited resources:

• ISBA travel grants as junior travel awards.
• BayesComp section travel grants for early career researchers.
• Other grants will be announced as soon as we have decisions available.

Details on the application will be announced later autumn 2022.

Poster prizes: The best poster presentations will be given poster prizes in the form of book vouchers. The prizes are sponsored by CRC. 

Matt Moores, University of Wollongong, Australia (Chair)

Sara Wade, University of Edinburgh, UK (Co-Chair)

Sally Paganin, Harvard University, USA

Alice Corbella, University of Warwick, UK

Dootika Vats, Indian Institute of Technology, India

Gareth Roberts, University of Warwick, UK

Antonietta Mira, Università della Svizzera italiana, Switzerland, and University of Insubria, Italy

Christophe Andrieu, University of Bristol, UK

Matti Vihola, University of Jyväskylä, Finland

Heikki Haario, LUT University, Finland

Lassi Roininen, LUT University (LOC head)
Simo Särkkä, Aalto University

Mari Myllymäki, Natural Resources Institute Finland

Johanna Tamminen, Finnish Meteorological Institute

Aki Vehtari, Aalto University

Jarno Vanhatalo, University of Helsinki

Samuli Siltanen, University of Helsinki

Tapio Helin, LUT University

Bayes Comp follows ISBA code of conduct on ethical professional practice, equal opportunity, and anti-harassment. For any irregularity, please contact bayescomp2023@gmail.com.