Department of Computer Science

High-performance computing Lab (HPCLab)

Our research group develops and utilises high-performance and data intensive computing (HPC) methods and applications for heterogeneous NUMA-architectures.

Our spearhead area is astroinformatics, namely methods and tools for simulating and analysing data from complex (astro)physical systems, such as turbulent fluids, the Sun, and interstellar matter in galaxies. The developed methods include simulation tools accelerated with graphics processing units, and data-analysis tools employing machine learning. Our current projects aim at understanding, predicting, and mitigating the harmful effects from solar magnetic activity (ERC consolidator grant UniSDyn, ERC proof-of-concept grant SYCOS, Inno4Scale project NEOSC).
Model of the Sun from PRACE project INTERDYNS
Solar convection zone modelled in the PRACE project INTERDYNS. Simulations were performed with the Pencil Code. Image copyright Ameya Prabhu.

News

HPCLab research group news

Department of Computer Science

LLM seminar

Seminar on Large Language Models in the CS Department
Kannettava tietokone ja matkapuhelin pöydällä. Kuva: Aalto-yliopisto/Mikko Raskinen
Department of Computer Science

Tips for designing social welfare and healthcare sector’s digital services for all

Tips for designing social welfare and healthcare sector’s digital services for all.
Patient and healthcare professionals at hospital
Department of Computer Science

Human-Centred Health Informatics (HCHI)

HCHI research group
ReSolve CoE (Astroinformatics research group) determined magnetic helicity spectrum
Department of Computer Science

Evidence of turbulent dynamo action in the Sun

Astroinformatics research group has determined magnetic helicity spectrum from the solar surface observations using the recently developed two-scale formalism.

Latest publications

COSMOS-Web : estimating physical parameters of galaxies using Self-Organizing Maps

Fatemeh Abedini, Ghassem Gozaliasl, Akram Hasani Zonoozi, Atousa Kalantari, Maarit Korpi-Lagg, Olivier Ilbert, Hollis B. Akins, Natalie Allen, Rafael C. Arango-Toro, Caitlin M. Casey, Nicole E. Drakos, Andreas L. Faisst, Carter Flayhart, Maximilien Franco, Hosein Haghi, Aryana Haghjoo, Santosh Harish, Hossein Hatamnia, Jeyhan S. Kartaltepe, Ali Ahmad Khostovan, Anton M. Koekemoer, Vasily Kokorev, Rebecca L. Larson, Gavin Leroy, Daizhong Liu, Henry Joy McCracken, Jed McKinney, Nicolas McMahon, Wilfried Mercier, Bahram Mobasher, Sophie Newman, Louise Paquereau, Jason Rhodes, Brant E. Robertson, Sogol Sanjaripour, Marko Shuntov, Sina Taamoli, Sune Toft, Francesco Valentino, Eleni Vardoulaki, John R. Weaver 2026 Monthly Notices of the Royal Astronomical Society

Euclid Quick Data Release (Q1) : XXV. Hunting for luminous z > 6 galaxies in the Euclid Deep Fields – Forecasts and the first bright detections

N. Allen, P. A. Oesch, R. A.A. Bowler, S. Toft, J. Matharu, J. R. Weaver, C. J.R. McPartland, M. Shuntov, D. B. Sanders, B. Mobasher, H. J. McCracken, H. Atek, E. Bañados, S. W.J. Barrow, S. Belladitta, D. Carollo, M. Castellano, C. J. Conselice, P. R.M. Eisenhardt, Y. Harikane, G. Murphree, M. Stefanon, S. M. Wilkins, A. Amara, S. Andreon, N. Auricchio, C. Baccigalupi, M. Baldi, A. Balestra, S. Bardelli, P. Battaglia, R. Bender, A. Biviano, E. Branchini, M. Brescia, J. Brinchmann, S. Camera, G. Cañas-Herrera, V. Capobianco, C. Carbone, S. M. Niemi, P. Schneider, Y. Wang, M. Calabrese, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, J. Kim, S. J. Liu 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : I. Data release overview

H. Aussel, I. Tereno, M. Schirmer, G. Alguero, B. Altieri, E. Balbinot, T. de Boer, P. Casenove, P. Corcho-Caballero, H. Furusawa, J. Furusawa, M. J. Hudson, K. Jahnke, G. Libet, J. Macias-Perez, N. Masoumzadeh, J. J. Mohr, J. Odier, D. Scott, T. Vassallo, G. Verdoes Kleijn, A. Zacchei, N. Aghanim, A. Amara, S. Andreon, N. Auricchio, S. Awan, R. Azzollini, C. Baccigalupi, M. Baldi, A. Balestra, S. Bardelli, A. Basset, P. Battaglia, A. N. Belikov, R. Bender, A. Biviano, A. Bonchi, D. Bonino, E. Branchini, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, M. Calabrese, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, J. B. Melin 2026 Astronomy and Astrophysics

Forged by Feedback : Stellar Properties of Brightest Group Galaxies in Cosmological Simulations

Ruxin Barré, Arif Babul, Ghassem Gozaliasl, Alexis Finoguenov, Romeel Davé, Aviv Padawer-Blatt, Douglas Rennehan, Vida Saeedzadeh, Renier T. Hough, Thomas R. Quinn 2026 Astrophysical Journal

Euclid Quick Data Release (Q1) : XXXIII. The first catalogue of strong-lensing galaxy clusters

P. Bergamini, M. Meneghetti, A. Acebron, B. Clément, M. Bolzonella, C. Grillo, P. Rosati, D. Abriola, J. A. Acevedo Barroso, G. Angora, L. Bazzanini, R. Cabanac, B. C. Nagam, A. R. Cooray, G. Despali, G. Di Rosa, J. M. Diego, M. Fogliardi, A. Galan, R. Gavazzi, G. Granata, N. B. Hogg, K. Jahnke, L. Leuzzi, T. Li, M. Lombardi, G. Mahler, A. Manjón-García, R. B. Metcalf, M. Oguri, C. Olave, J. M. Palencia, J. Richard, K. Rojas, L. R. Ecker, C. Scarlata, M. Schirmer, S. Schuldt, D. Sluse, G. P. Smith, C. Tortora, G. Vernardos, S. M. Niemi, P. Schneider, Y. Wang, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, S. J. Liu 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : XXXIV. First detections from the Euclid galaxy cluster workflow

S. Bhargava, C. Benoist, A. H. Gonzalez, M. Maturi, J. B. Melin, S. A. Stanford, E. Munari, M. Vannier, C. Murray, S. Maurogordato, A. Biviano, J. Macias-Perez, J. G. Bartlett, F. Pacaud, A. Widmer, M. Meneghetti, B. Sartoris, M. Aguena, G. Alguero, S. Andreon, S. Bardelli, L. Baumont, M. Bolzonella, R. Cabanac, A. Cappi, G. Castignani, C. Combet, J. Comparat, S. Farrens, Z. Ghaffari, P. A. Giles, C. Giocoli, M. Girardi, N. A. Hatch, L. Ingoglia, A. Iovino, G. A. Mamon, S. Mei, L. Moscardini, S. Mourre, J. Odier, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, S. J. Liu 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : XXIV. Extending the quest for little red dots to z < 4

L. Bisigello, G. Rodighiero, S. Fotopoulou, F. Ricci, K. Jahnke, A. Feltre, V. Allevato, F. Shankar, P. Cassata, E. Dalla Bontà, G. Gandolfi, G. Girardi, M. Giulietti, A. Grazian, C. C. Lovell, R. Maiolino, T. Matamoro Zatarain, M. Mezcua, I. Prandoni, D. Roberts, W. Roster, M. Salvato, M. Siudek, F. Tarsitano, Y. Toba, A. Vietri, L. Wang, G. Zamorani, M. Baes, S. Belladitta, A. Nersesian, L. Spinoglio, X. Lopez Lopez, N. Aghanim, B. Altieri, A. Amara, S. Andreon, N. Auricchio, H. Aussel, C. Baccigalupi, M. Baldi, A. Balestra, S. M. Niemi, P. Schneider, Y. Wang, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, A. Viitanen 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : XXXI. LEMON – LEns MOdelling with Neural networks. Automated and fast modelling of Euclid gravitational lenses with singular isothermal ellipsoid mass profile

V. Busillo, C. Tortora, R. B. Metcalf, J. W. Nightingale, M. Meneghetti, F. Gentile, R. Gavazzi, F. Zhong, R. Li, B. Clément, G. Covone, N. R. Napolitano, F. Courbin, M. Walmsley, E. Jullo, J. Pearson, D. Scott, A. M.C. Le Brun, L. Leuzzi, N. Aghanim, B. Altieri, A. Amara, S. Andreon, H. Aussel, C. Baccigalupi, M. Baldi, S. Bardelli, P. Battaglia, A. Biviano, E. Branchini, M. Brescia, J. Brinchmann, S. Camera, G. Cañas-Herrera, V. Capobianco, C. Carbone, V. F. Cardone, J. Carretero, S. Casas, M. Castellano, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, M. Calabrese, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, S. J. Liu 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : VI. From spectrograms to spectra: The SIR spectroscopic processing function

Y. Copin, M. Fumana, C. Mancini, P. N. Appleton, R. Chary, S. Conseil, A. L. Faisst, S. Hemmati, D. C. Masters, C. Scarlata, M. Scodeggio, A. Alavi, A. Carle, P. Casenove, T. Contini, I. Das, W. Gillard, G. Herzog, J. Jacobson, V. Le Brun, D. Maino, G. Setnikar, N. R. Stickley, D. Tavagnacco, Q. Xie, N. Aghanim, B. Altieri, A. Amara, S. Andreon, N. Auricchio, H. Aussel, C. Baccigalupi, M. Baldi, A. Balestra, S. Bardelli, A. Basset, P. Battaglia, A. N. Belikov, A. Biviano, A. Bonchi, E. Branchini, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, S. Hosseini 2026 Astronomy and Astrophysics

Euclid Quick Data Release (Q1) : XV. A probabilistic classification of quenched galaxies

P. Corcho-Caballero, Y. Ascasibar, G. Verdoes Kleijn, C. C. Lovell, G. De Lucia, C. Cleland, F. Fontanot, C. Tortora, L. V.E. Koopmans, S. Eales, T. Moutard, C. Laigle, A. Nersesian, F. Shankar, M. Dunn, N. Aghanim, B. Altieri, A. Amara, S. Andreon, H. Aussel, C. Baccigalupi, M. Baldi, A. Balestra, S. Bardelli, P. Battaglia, A. Biviano, A. Bonchi, D. Bonino, E. Branchini, M. Brescia, J. Brinchmann, G. Cañas-Herrera, V. Capobianco, C. Carbone, J. Carretero, S. Casas, F. J. Castander, M. Castellano, G. Castignani, S. Cavuoti, K. C. Chambers, S. M. Niemi, A. G. Sánchez, P. Schneider, Y. Wang, Y. Fang, G. Gozaliasl, A. Hall, J. Hjorth, S. J. Liu 2026 Astronomy and Astrophysics
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