206 citations
- University of HelsinkiFI96 papers
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- National Polytechnic SchoolEC7 papers
- University of TurkuFI7 papers
- Aalto UniversityFI5 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- Helsinki Institute of PhysicsFI5 papers
- University of AmsterdamNL5 papers
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- Hebrew University of JerusalemIL3 papers
- Institute of Mathematics and Mathematical ModelingKZ3 papers
- Universidad Autónoma de MadridES3 papers
103 papers
Complexity Results in Team Semantics: Nonemptiness Is Not So Complex
Aleksi Anttila, Juha Kontinen, Fan Yang
We initiate the study of the complexity-theoretic properties of convex logics in team semantics. We focus on the extension of classical propositional logic with the nonemptiness at…
Identifiable Autoregressive Variational Autoencoders for Nonlinear and Nonstationary Spatio-Temporal Blind Source Separation
Mika Sipilä, Klaus Nordhausen, Sara Taskinen
The modeling and prediction of multivariate spatio-temporal data involve numerous challenges. Dimension reduction methods can significantly simplify this process, provided that the…
Traveling waves in a continuum model of schooling swimmers
Anand U. Oza, Eva Kanso, Michael J. Shelley
The complex formations exhibited by schooling fish have long been the object of fascination for biologists and physicists. However, the physical and sensory mechanisms leading to o…
Independent vector analysis -- an introduction for statisticians
Miro Arvila, Klaus Nordhausen, Mika Sipilä +1
Blind source separation (BSS), particularly independent component analysis (ICA), has been widely used in various fields of science such as biomedical signal processing to recover…
Learned enclosure method for experimental EIT data
Sara Sippola, Siiri Rautio, Andreas Hauptmann +2
Electrical impedance tomography (EIT) is a non-invasive imaging method with diverse applications, including medical imaging and non-destructive testing. The inverse problem of reco…
Operator product expansions of derivative fields in the sine-Gordon model
Alex Karrila, Tuomas Virtanen, Christian Webb
In this article, we initiate the study of operator product expansions (OPEs) for the sine-Gordon model. For simplicity, we focus on the model below the first threshold of collapse…