PARINYA CHALERMSOOK

My broad area of research interests is in theoretical computer science. I work mostly on approximation algorithms and their connections to combinatorics and mathematical optimization. I completed my PhD from the department of computer science, University of Chicago in 2012, under the supervision of Julia Chuzhoy (at TTI-C) and Janos Simon.  

After my Ph.D, I did a short (and yet fun) postdoc at IDSIA. Afterwards, I very much enjoyed 3.5 years at Max Planck Institute for Informatics, thanks to the directorship of Kurt Mehlhorn. I became a faculty member at Aalto in August 2016. 

I was a recipient of Simons-Berkeley Research Fellowship in 2017, attending the great 'jumbo' program on Bridging Continuous and Discrete Optimization. My research has been generously supported by  a starting grant from European Research Council (ERC) and Academy of Finland Research Fellowship.  

Highly motivated postdocs in TCS are strongly encouraged to contact me any time.  We generally have centrally funded postdoc opennings twice a year (deadlines roughly in January and August). Unfortunately, I currently have no funding for PhD students.  

Click on the publications tab to see more about my research. 

NEWS 

• Attending Bernoulli center workshop on Synergies between Combinatorics and Theoretical Computer Science (Aug 19- 23, 2024) 

• Attending Dagstuhl seminar on New Tools in Parameterized Complexity (Oct 6-11, 2024) 

• SODA 2025 program committee. Looking forward to reading your great papers there :) 

• Two papers in ICALP 2024 and a paper in SODA 2024. 

• I am on the program committee of HALG & STOC & ICALP 2024.

• We have centrally funded opportunities for postdoc (2 years) and senior postdocs (3+2 years) at Helsinki Institute for Information Technology. Strong candidates are encouraged to apply!! Feel free to write me about these positions. 

• With Karthik CS, Joachim Spoerhase, and Meirav Zehavi, I organized Dagstuhl workshop on Parameterized Approximation: Algorithms and Hardness. 

• Bundit Laekhanukit and I are co-chairing the program committee of WAOA 2022. 

See Old news  for more. 

TEACHING

These days, I teach Combinatorics in Autumn and Computational Complexity in Spring. 

At Aalto, I have taught Principles of Algorithmic Techniques (x3), Combinatorics (x5), and Computational Complexity (x4). 

SUPERVISION

I very much enjoy working with motivated junior members of our TCS community. The main thing I will expect from my students/postdocs is, you like what you are doing; I don't mind if your interests change over time as long as your motivation remains high. This should be reflected by you reading papers, spending time thinking offline, taking initiatives to propose research problems, etc. 

Here is a list of my PhD students, in reverse chronological order of their starting dates:  

• • Minoo Zarsav 

  • Michał Osadnik (joint with R. Lai) 

  • Ly Orgo  

  • Sorrachai Yingchareonthawornchai (joint with D. Nanongkai), PhD 2023 --> Simons-Berkeley Research Fellow --> postdoc at Hebrew University of Jerusalem

  • Nidia Obscura Acosta 

  • Ameet Gadekar (joint with C. Brzuska), PhD 2024  --> postdoc at Bar-Ilan University

  • Wanchote Jiamjitrak, PhD 2023 --> University of Helsinki

  • Daniel Vaz (joint with K. Mehlhorn), PhD 2020 --> postdoc at TU Munich --> postdoc at École normale supérieure 

  • Andreas Schmid (joint with K. Mehlhorn), PhD 2019 --> postdoc at Montpellier --> industry 

Here is a list of postdocs/research fellows (again in reverse-chronological order) I have hosted: 

• Manuel Caceres, from 2024 

• Kamyar Khodamoradi, 2021 to 2022 --> postdoc at University of British Columbia --> faculty at U of Regina (Canada) 

• Joachim Spoerhase (joint with D. Nanongkai), 2018-2023 --> Lecturer at Sheffield University (UK) 

• Gorav Jindal, from 2018 to 2020 --> postdoc at TU Berlin  --> postdoc at MPI-SWS

• Sumedha Uniyal, 2017 to 2020 

SERVICE

PC Membership: SODA 2025, HALG 2024, STOC 2024, ICALP 2024, FSTTCS 2023, SOSA 2023, WAOA 2022 (chair), APPROX 2022, WAOA 2021, WADS 2021, ICALP 2021, SODA 2021, SWAT 2020, ICALP 2019, APPROX 2018, ISAAC 2017, ESA 2016, FUN 2016, FSTTCS 2016, APPROX 2015.

Organization: Dagstuhl Seminar on Parameterized Approximation: Algorithms and Hardness 2023 (with Karthik CS, J. Spoerhase and M. Zehavi), PC co-chair of WAOA 2022 (with B. Laekhanukit), Hausdorff Workshop on Parameterized Complexity & Optimization 2021 (with Fritz Eisenbrand, Fedor Fomin, and Jesper Nederlof), ALGO 2018 (with P. Kaski and J. Suomela), and ADFOCS 2014 (with Andreas Karrenbauer). 

Local Service: Helsinki Algorithms Seminar (Fall 2018 - Spring 2019, Spring 2023) 

CONTACT 

Address: Konemiehentie 2, Espoo/Otaniemi, 02150, Finland. B204. 

Email: Aalto e-mail always follows the format firstname dot lastname at aalto.fi. My first name is the one that starts with P.