User profiles for Panu Somervuo

Panu Somervuo

researcher, University of Helsinki
Verified email at helsinki.fi
Cited by 4476

Self-organizing maps of symbol strings

T Kohonen, P Somervuo - Neurocomputing, 1998 - Elsevier
Unsupervised self-organizing maps (SOMs), as well as supervised learning by Learning
Vector Quantization (LVQ) can be defined for string variables, too. Their computing becomes …

How to make large self-organizing maps for nonvectorial data

T Kohonen, P Somervuo - Neural networks, 2002 - Elsevier
The self-organizing map (SOM) represents an open set of input samples by a topologically
organized, finite set of models. In this paper, a new version of the SOM is used for the …

Parametric representations of bird sounds for automatic species recognition

P Somervuo, A Harma… - IEEE Transactions on …, 2006 - ieeexplore.ieee.org
This paper is related to the development of signal processing techniques for automatic
recognition of bird species. Three different parametric representations are compared. The first …

[HTML][HTML] The Glanville fritillary genome retains an ancient karyotype and reveals selective chromosomal fusions in Lepidoptera

V Ahola, R Lehtonen, P Somervuo, L Salmela… - Nature …, 2014 - nature.com
Previous studies have reported that chromosome synteny in Lepidoptera has been well
conserved, yet the number of haploid chromosomes varies widely from 5 to 223. Here we report …

Arabidopsis NAC45/86 direct sieve element morphogenesis culminating in enucleation

…, O Lindgren, B De Rybel, G Van Isterdael, P Somervuo… - Science, 2014 - science.org
Photoassimilates such as sugars are transported through phloem sieve element cells in
plants. Adapted for effective transport, sieve elements develop as enucleated living cells. We …

Self-organizing maps and learning vector quantization for feature sequences

P Somervuo, T Kohonen - Neural Processing Letters, 1999 - Springer
The Self-Organizing Map (SOM) and Learning Vector Quantization (LVQ) algorithms are
constructed in this work for variable-length and warped feature sequences. The novelty is to …

[HTML][HTML] High resolution DNA barcode library for European butterflies reveals continental patterns of mitochondrial genetic diversity

V Dincă, L Dapporto, P Somervuo, R Vodă… - Communications …, 2021 - nature.com
The study of global biodiversity will greatly benefit from access to comprehensive DNA barcode
libraries at continental scale, but such datasets are still very rare. Here, we assemble the …

Fungal communities decline with urbanization—more in air than in soil

N Abrego, B Crosier, P Somervuo, N Ivanova… - The ISME …, 2020 - academic.oup.com
Increasing evidence suggests that degradation of biodiversity in human populated areas is
a threat for the ecosystem processes that are relevant for human well-being. Fungi are a …

Unbiased probabilistic taxonomic classification for DNA barcoding

P Somervuo, S Koskela, J Pennanen… - …, 2016 - academic.oup.com
Motivation: When targeted to a barcoding region, high-throughput sequencing can be used
to identify species or operational taxonomical units from environmental samples, and thus to …

A molecular‐based identification resource for the arthropods of Finland

T Roslin, P Somervuo, M Pentinsaari… - Molecular Ecology …, 2022 - Wiley Online Library
To associate specimens identified by molecular characters to other biological knowledge,
we need reference sequences annotated by Linnaean taxonomy. In this study, we (1) report …