662 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PotsdamDE34 papers
- University of HelsinkiFI26 papers
- Aalto UniversityFI23 papers
- Tampere UniversityFI18 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Northeastern UniversityUS17 papers
- University of JyväskyläFI14 papers
- Brown UniversityUS13 papers
- Technical University of MunichDE13 papers
- Aarhus UniversityDK12 papers
- Helsinki Institute of PhysicsFI10 papers
- Charles UniversityCZ9 papers
31 papers · 1 filter
Approximate Recursive Identification of Autoregressive Systems with Skewed Innovations
Henri Nurminen, Tohid Ardeshiri
We propose a novel recursive system identification algorithm for linear autoregressive systems with skewed innovations. The algorithm is based on the variational Bayes approximatio…
The World of Fast Moving Objects
Denys Rozumnyi, Jan Kotera, Filip Sroubek +2
The notion of a Fast Moving Object (FMO), i.e. an object that moves over a distance exceeding its size within the exposure time, is introduced. FMOs may, and typically do, rotate w…
Spatio-Temporal Waveform Design for Multi-user Massive MIMO Downlink with 1-bit Receivers
Ahmet Gokceoglu, Emil Bjornson, Erik Larsson +1
Internet-of-Things (IoT) refers to a high-density network of low-cost low-bitrate terminals and sensors where also low energy consumption is one central feature. As the power-budge…
Exploiting inter-image similarity and ensemble of extreme learners for fixation prediction using deep features
Hamed R. -Tavakoli, Ali Borji, Jorma Laaksonen +1
This paper presents a novel fixation prediction and saliency modeling framework based on inter-image similarities and ensemble of Extreme Learning Machines (ELM). The proposed fram…
Performance Analysis of Multi-User Massive MIMO Downlink under Channel Non-Reciprocity and Imperfect CSI
Orod Raeesi, Ahmet Gokceoglu, Yaning Zou +2
This paper analyzes the performance of linearly precoded time division duplex based multi-user massive MIMO downlink system under joint impacts of channel non-reciprocity (NRC) and…
Reduced Order Internal Models in the Frequency Domain
Petteri Laakkonen, Lassi Paunonen
The internal model principle states that all robustly regulating controllers must contain a suitably reduplicated internal model of the signal to be regulated. Using frequency doma…
Probabilistic Saliency Estimation
Caglar Aytekin, Alexandros Iosifidis, Moncef Gabbouj
In this paper, we model the salient object detection problem under a probabilistic framework encoding the boundary connectivity saliency cue and smoothness constraints in an optimi…
State Estimation for Piecewise Affine State-Space Models
Rafael Rui, Tohid Ardeshiri, Henri Nurminen +2
We propose a filter for piecewise affine state-space (PWASS) models. In each filtering recursion, the true filtering posterior distribution is a mixture of truncated normal distrib…
Stabilization to trajectories for parabolic equations
Duy Phan, Sérgio S. Rodrigues
The feedback exponential stabilization to trajectories for semilinear parabolic equations in a given bounded domain is addressed. The controls take values in a finite-dimensional s…
Low-Complexity Sub-band Digital Predistortion for Spurious Emission Suppression in Noncontiguous Spectrum Access
Mahmoud Abdelaziz, Lauri Anttila, Chance Tarver +3
Noncontiguous transmission schemes combined with high power-efficiency requirements pose big challenges for radio transmitter and power amplifier (PA) design and implementation. Du…
Electroencephalography (EEG) Forward Modeling via H(div) Finite Element Sources with Focal Interpolation
Sampsa Pursiainen, Johannes Vorwerk, Carsten H. Wolters
The goal of this study is to develop focal, accurate and robust finite element method (FEM) based approaches which can predict the electric potential on the surface of the computat…
Robust Output Regulation for Continuous-Time Periodic Systems
Lassi Paunonen
We consider controller design for robust output tracking and disturbance rejection for continuous-time periodic linear systems with periodic reference and disturbance signals. As o…
Optimal control of photoelectron emission by realistic waveforms
Janne Solanpää, Marcelo F. Ciappina, Esa Räsänen
Recent experimental techniques in multicolor waveform synthesis allow the temporal shaping of strong femtosecond laser pulses with applications in the control of quantum mechanical…
Limited Random Walk Algorithm for Big Graph Data Clustering
Honglei Zhang, Jenni Raitoharju, Serkan Kiranyaz +1
Graph clustering is an important technique to understand the relationships between the vertices in a big graph. In this paper, we propose a novel random-walk-based graph clustering…
Outlier Edge Detection Using Random Graph Generation Models and Applications
Honglei Zhang, Serkan Kiranyaz, Moncef Gabbouj
Outliers are samples that are generated by different mechanisms from other normal data samples. Graphs, in particular social network graphs, may contain nodes and edges that are ma…
Towards a unified framework for decomposability of processes
Valtteri Lahtinen, Antti Stenvall
The concept of process is ubiquitous in science, engineering and everyday life. Category theory, and monoidal categories in particular, provide an abstract framework for modelling…
Health Figures: An Open Source JavaScript Library for Health Data Visualization
Andres Ledesma, Mohammed Al-Musawi, Hannu Nieminen
The way we look at data has a great impact on how we can understand it, particularly when the data is related to health and wellness. Due to the increased use of self-tracking devi…
Generalized Multi-view Embedding for Visual Recognition and Cross-modal Retrieval
Guanqun Cao, Alexandros Iosifidis, Ke Chen +1
In this paper, the problem of multi-view embedding from different visual cues and modalities is considered. We propose a unified solution for subspace learning methods using the Ra…
Asymptotic behaviour of coupled systems in discrete and continuous time
L. Paunonen, D. Seifert
This paper investigates the asymptotic behaviour of solutions to certain infinite systems of coupled recurrence relations. In particular, we obtain a characterisation of those init…
Sum-Rate Analysis and Optimization of Self-Backhauling Based Full-Duplex Radio Access System
Dani Korpi, Taneli Riihonen, Ashutosh Sabharwal +1
In this article, a radio access system with a self-backhauling full-duplex access node serving legacy half-duplex mobile devices is studied and analyzed. In particular, it is assum…
Semiclassical two-step model for strong-field ionization
N. I. Shvetsov-Shilovski, M. Lein, L. B. Madsen +5
We present a semiclassical two-step model for strong-field ionization that accounts for path interferences of tunnel-ionized electrons in the ionic potential beyond perturbation th…
Analysis of Human-Body Blockage in Urban Millimeter-Wave Cellular Communications
Margarita Gapeyenko, Andrey Samuylov, Mikhail Gerasimenko +7
The use of extremely high frequency (EHF) or millimeter-wave (mmWave) band has attracted significant attention for the next generation wireless access networks. As demonstrated by…
The shape of health: A comparison of five alternative ways of visualizing personal health and wellbeing
Andres Ledesma, Hannu Nieminen, Päivi Valve +3
The combination of clinical and personal health and wellbeing data can tell us much about our behaviors, risks and overall status. The way this data is visualized may affect our un…
Recurrent Neural Networks for Polyphonic Sound Event Detection in Real Life Recordings
Giambattista Parascandolo, Heikki Huttunen, Tuomas Virtanen
In this paper we present an approach to polyphonic sound event detection in real life recordings based on bi-directional long short term memory (BLSTM) recurrent neural networks (R…