Computational Field Theory

Overview

Core fields of research

Basic natural phenomena and mathematical thinking

Research areas

Computational Science

Faculty

Faculty of Information Technology

Research group description

Our research group studies discrete exterior calculus and uses it to solve wave equations. Our application domains include electromagnetism, acoustics, elasticity and quantum mechanics.

Current

Members

Research group

Group leaders

Tuomo Rossi

Professor

Members

Lauri Kettunen

Professor

Sanna Mönkölä

Senior Lecturer (absent)

External members

Markus Kivioja

Doctoral Researcher

Supercell

Publications

Publication

2026

Discrete Exterior Calculus and Controlled Time Integration for Time-Harmonic Acoustics

Challenges in Design Methods, Numerical Tools and Technologies for Sustainable Aviation, Transport and Industry. Computational Methods in Applied Sciences. Springer Cham.

Myyrä, Mikael

Publication

2025

(2+1)-dimensional discrete exterior discretization of a general wave model in Minkowski spacetime

Results in Applied Mathematics.

Mönkölä, Sanna

Räbinä, Jukka

Saksa, Tytti

Rossi, Tuomo

Publication

2025

Comparison of finite element and discrete exterior calculus in computation of time-harmonic wave propagation with controllability

Journal of Computational and Applied Mathematics.

Saksa, Tytti

Publication

2025

DBANet : Dual Boundary Awareness With Confidence-Guided Pseudo Labeling for Medical Image Segmentation

IEEE Journal of Biomedical and Health Informatics.

Chen, Zhonghua

Cao, Haitao

Kettunen, Lauri

Wang, Hongkai

Publication

2025

Engineering students’ cognitive engagement and visual attention in undergraduate mathematics lessons

International Journal of Mathematical Education in Science and Technology.

Lehesvuori, Sami

Järvinen, Miitta

Räty, Paavo

Lämsä, Joni

Roslöf, Janne

Kettunen, Lauri

Hämäläinen, Raija

Publication

2025

Generating synthetic past and future states of Knee Osteoarthritis radiographs using Cycle-Consistent Generative Adversarial Neural Networks

Computers in Biology and Medicine.

Prezja, Fabi

Annala, Leevi

Kiiskinen, Sampsa

Lahtinen, Suvi

Ojala, Timo

Nieminen, Paavo

Publication

2025

Local time-stepping for discrete exterior calculus on spacetime mesh with refinements

Journal of Computational Physics.

Räty, Joona

Mönkölä, Sanna

Publication

2024

Academic experiences of information technology students : uncovering first-year challenges

European Journal of Engineering Education.

Järvinen, Miitta

Sipiläinen, Katriina

Roslöf, Janne

Lehesvuori, Sami

Kettunen, Lauri

Hämäläinen, Raija

Publication

2024

Annotation-efficient training of medical image segmentation network based on scribble guidance in difficult areas

International Journal of Computer Assisted Radiology and Surgery.

Zhuang, Mingrui

Chen, Zhonghua

Yang, Yuxin

Kettunen, Lauri

Wang, Hongkai

Publication

2024

Exploring the Efficacy of Base Data Augmentation Methods in Deep Learning-Based Radiograph Classification of Knee Joint Osteoarthritis

Algorithms.

Prezja, Fabi

Annala, Leevi

Kiiskinen, Sampsa

Ojala, Timo

Publication

2024

Improving Performance in Colorectal Cancer Histology Decomposition using Deep and Ensemble Machine Learning

Heliyon.

Prezja, Fabi

Annala, Leevi

Kiiskinen, Sampsa

Lahtinen, Suvi

Ojala, Timo

Ruusuvuori, Pekka

Kuopio, Teijo

Publication

2024

Interpretable Sleep Stage Classification Based on Layer-Wise Relevance Propagation

IEEE Transactions on Instrumentation and Measurement.

Zhou, Dongdong

Xu, Qi

Zhang, Jiacheng

Wu, Lei

Xu, Hongming

Kettunen, Lauri

Chang, Zheng

Zhang, Qiang

Cong, Fengyu