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Mathematics
Finland
2026

D-Index & Metrics

Mathematics

D-Index
42
Citations
6565
World Ranking
1807
National Ranking
10

Hannu Oja publication distribution in Mathematics in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Mathematics in 2026. The highlighted bar marks where Hannu Oja sits on this spectrum.

42–46 publications: 3 scientists 47–51 publications: 5 scientists 52–56 publications: 7 scientists 57–61 publications: 20 scientists 62–66 publications: 14 scientists 67–71 publications: 25 scientists 72–76 publications: 19 scientists 77–81 publications: 35 scientists 82–86 publications: 50 scientists 87–91 publications: 60 scientists 92–96 publications: 86 scientists 97–101 publications: 84 scientists 102–106 publications: 83 scientists 107–111 publications: 90 scientists 112–116 publications: 99 scientists 117–121 publications: 90 scientists 122–126 publications: 91 scientists 127–131 publications: 109 scientists 132–136 publications: 110 scientists 137–141 publications: 98 scientists 142–146 publications: 112 scientists 147–151 publications: 102 scientists 152–156 publications: 88 scientists 157–161 publications: 106 scientists 162–166 publications: 83 scientists 167–171 publications: 102 scientists 172–176 publications: 77 scientists 177–181 publications: 81 scientists 182–186 publications: 78 scientists 187–191 publications: 71 scientists 192–196 publications: 92 scientists 197–201 publications: 64 scientists 202–206 publications: 69 scientists 207–211 publications: 64 scientists 212–216 publications: 62 scientists 217–221 publications: 58 scientists 222–226 publications: 53 scientists 227–231 publications: 50 scientists 232–236 publications: 46 scientists 237–241 publications: 46 scientists 242–246 publications: 46 scientists 247–251 publications: 43 scientists 252–256 publications: 29 scientists 257–261 publications: 45 scientists 262–266 publications: 30 scientists 267–271 publications: 33 scientists 272–276 publications: 34 scientists 277–281 publications: 30 scientists 282–286 publications: 31 scientists 287–291 publications: 21 scientists 292–296 publications: 34 scientists 297–301 publications: 26 scientists 302–306 publications: 10 scientists 307–311 publications: 17 scientists 312–316 publications: 23 scientists 317–321 publications: 13 scientists 322–326 publications: 16 scientists 327–331 publications: 26 scientists 332–336 publications: 13 scientists 337–341 publications: 13 scientists 342–346 publications: 16 scientists 347–351 publications: 17 scientists 352–356 publications: 12 scientists 357–361 publications: 18 scientists 362–366 publications: 18 scientists 367–371 publications: 9 scientists 372–376 publications: 11 scientists 377–381 publications: 8 scientists 382–386 publications: 8 scientists 387–391 publications: 9 scientists 392–396 publications: 9 scientists 397–401 publications: 8 scientists 402–406 publications: 11 scientists 407–411 publications: 6 scientists 412–416 publications: 6 scientists 417–421 publications: 9 scientists 422–426 publications: 8 scientists 427–431 publications: 5 scientists 432–436 publications: 8 scientists 437–441 publications: 8 scientists 442–446 publications: 4 scientists 447–451 publications: 4 scientists 452–456 publications: 4 scientists 457–461 publications: 2 scientists 462–466 publications: 2 scientists 467–471 publications: 4 scientists 472–476 publications: 3 scientists 477–481 publications: 3 scientists 482–486 publications: 6 scientists 487–491 publications: 3 scientists 492–496 publications: 5 scientists 497–501 publications: 5 scientists 502–506 publications: 1 scientists 507–511 publications: 6 scientists 512–516 publications: 4 scientists 517–521 publications: 1 scientists 522–526 publications: 3 scientists 527–531 publications: 1 scientists 532–536 publications: 4 scientists 537+ publications: 100 scientists
42 publications 537+

This scientist: 202 publications — 63rd percentile

63% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 537 publications or more.

Hannu Oja D-index placement in Mathematics in 2026

The chart shows the D-index (discipline H-index) distribution of Mathematics scientists ranked by Research.com in 2026. The highlighted bar marks where Hannu Oja sits on this spectrum.

30 D-Index: 174 scientists 31 D-Index: 151 scientists 32 D-Index: 174 scientists 33 D-Index: 117 scientists 34 D-Index: 136 scientists 35 D-Index: 127 scientists 36 D-Index: 145 scientists 37 D-Index: 153 scientists 38 D-Index: 150 scientists 39 D-Index: 150 scientists 40 D-Index: 138 scientists 41 D-Index: 136 scientists 42 D-Index: 93 scientists 43 D-Index: 108 scientists 44 D-Index: 115 scientists 45 D-Index: 112 scientists 46 D-Index: 103 scientists 47 D-Index: 75 scientists 48 D-Index: 59 scientists 49 D-Index: 67 scientists 50 D-Index: 60 scientists 51 D-Index: 57 scientists 52 D-Index: 59 scientists 53 D-Index: 62 scientists 54 D-Index: 60 scientists 55 D-Index: 50 scientists 56 D-Index: 42 scientists 57 D-Index: 54 scientists 58 D-Index: 50 scientists 59 D-Index: 42 scientists 60 D-Index: 41 scientists 61 D-Index: 35 scientists 62 D-Index: 40 scientists 63 D-Index: 21 scientists 64 D-Index: 31 scientists 65 D-Index: 27 scientists 66 D-Index: 29 scientists 67 D-Index: 19 scientists 68 D-Index: 25 scientists 69 D-Index: 17 scientists 70 D-Index: 18 scientists 71 D-Index: 12 scientists 72 D-Index: 14 scientists 73 D-Index: 13 scientists 74 D-Index: 18 scientists 75 D-Index: 9 scientists 76 D-Index: 11 scientists 77 D-Index: 10 scientists 78 D-Index: 9 scientists 79 D-Index: 16 scientists 80 D-Index: 12 scientists 81 D-Index: 10 scientists 82 D-Index: 5 scientists 83 D-Index: 5 scientists 84 D-Index: 13 scientists 85 D-Index: 6 scientists 86+ D-Index: 99 scientists
30 D-Index 86+

This scientist: 42 D-Index — 51st percentile

51% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 86 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Mathematics in Finland Leader Award
  • 2025 - Research.com Mathematics in Finland Leader Award

Overview

Hannu Oja is a researcher affiliated with the University of Turku in Finland, with research spanning multiple domains within engineering and related subfields. Their work is characterized by intersectional contributions to maritime logistics, statistical methods, and applied engineering disciplines.

The principal fields of study for Hannu Oja include Engineering, with particular emphasis on Industrial and Manufacturing Engineering and Statistics and Probability. Additional subfields of contribution are Analytical Chemistry, Signal Processing, and Computational Mechanics.

Key research topics addressed by Hannu Oja include:

  • Maritime Ports and Logistics
  • Spectroscopy and Chemometric Analyses
  • Transport and Logistics Innovations
  • Statistical Methods and Inference
  • Blind Source Separation Techniques
  • Sparse and Compressive Sensing Techniques
  • Urban and Freight Transport Logistics

Hannu Oja's publication record highlights collaborative work appearing in several notable venues, with a recurrent focus on maritime transport and statistical analysis. Frequent publication venues are:

  • TransNav the International Journal on Marine Navigation and Safety of Sea Transportation
  • Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S O Makarova
  • Journal of Multivariate Analysis
  • Heliyon
  • Papsel Journal of Humanities and Policy

Their research contribution includes papers such as:

  • "Asymptotic and bootstrap tests for subspace dimension" (2021), published in Journal of Multivariate Analysis
  • "Analytical Assessment of Stochastic Spread of Demand for the Port Storage Capacity" (2020), published in TransNav the International Journal on Marine Navigation and Safety of Sea Transportation
  • "Planning Simulation Experiments in the Tasks of Studying the Operational Strategies of Container Terminals" (2020), published in TransNav the International Journal on Marine Navigation and Safety of Sea Transportation
  • "On linear dimension reduction based on diagonalization of scatter matrices for bioinformatics downstream analyses" (2020), published in Heliyon
  • "Pemberdayaan Masyarakat Sebagai Basis Perubahan Sosial" (2024), published in Papsel Journal of Humanities and Policy

Hannu Oja frequently collaborates with coauthors such as Klaus Nordhausen, А. Л. Кузнецов, Anton D. Semenov, Aleksandr L. Kuznetsov, and Anton D. Semionov, showing an interdisciplinary approach through diverse expert partnerships.

Best Publications

  • Descriptive Statistics for Multivariate Distributions

    Hannu Oja

  • Multivariate spatial sign and rank methods

    Jyrki Möttönen;Hannu Oja

  • Multivariate Nonparametric Tests

    Hannu Oja;Ronald H. Randles

  • Sign and rank covariance matrices

    Samuli Visuri;Visa Koivunen;Hannu Oja

  • Invariant co-ordinate selection

    David E. Tyler;Frank Critchley;Lutz Dümbgen;Hannu Oja

  • miR‐193b is an epigenetically regulated putative tumor suppressor in prostate cancer

    Hanna E. Rauhala;Sanni E. Jalava;Jarkko Isotalo;Hazel Bracken

  • Multivariate Nonparametric Methods with R

    Hannu Oja

  • Multivariate Nonparametric Methods with R: An approach based on spatial signs and ranks

    Hannu Oja

  • OPERATING TRANSFORMATION RETRANSFORMATION ON SPATIAL MEDIAN AND ANGLE TEST

    Biman Chakraborty;Probal Chaudhuri;Hannu Oja

  • Subspace-based direction-of-arrival estimation using nonparametric statistics

    S. Visuri;H. Oja;V. Koivunen

  • Affine Invariant Multivariate Sign and Rank Tests and Corresponding Estimates: a Review

    Hannu Oja

  • Scatter Matrices and Independent Component Analysis

    Hannu Oja;Seija Sirkiä;Jan Eriksson

  • ON THE EFFICIENCY OF MULTIVARIATE SPATIAL SIGN AND RANK TESTS

    Jyrki Möttönen;Hannu Oja;Juha Tienari

  • Affine Invariant Multivariate Multisample Sign Tests

    Thomas P. Hettmansperger;Jukka Nyblom;Hannu Oja

  • Risk factors for chronic otitis media with effusion in infancy. Each acute otitis media episode induces a high but transient risk.

    Olli-Pekka Alho;Hannu Oja;Matti Koivu;Martti Sorri

  • A new performance index for ICA: properties, computation and asymptotic analysis

    Pauliina Ilmonen;Klaus Nordhausen;Hannu Oja;Esa Ollila

  • Fourth Moments and Independent Component Analysis

    Jari Miettinen;Sara Taskinen;Klaus Nordhausen;Hannu Oja

  • SEMIPARAMETRICALLY EFFICIENT RANK-BASED INFERENCE FOR SHAPE II. OPTIMAL R-ESTIMATION OF SHAPE

    Marc Hallin;Hannu Oja;Davy Paindaveine

  • Multivariate Nonparametric Tests of Independence

    Sara Taskinen;Hannu Oja;Ronald H Randles

  • Fitting mixture models to birth weight data: a case study.

    Hannu Oja;Markku Koiranen;Paula Rantakallio

  • On Location, Scale, Skewness and Kurtosis of Univariate Distributions

    Hannu Oja

Frequent Co-Authors

Teuvo L.J. Tammela
Teuvo L.J. Tammela Tampere University
Johanna Schleutker
Johanna Schleutker Turku University Hospital
Thomas P. Hettmansperger
Thomas P. Hettmansperger Pennsylvania State University
David E. Tyler
David E. Tyler Rutgers, The State University of New Jersey
Fabian J. Theis
Fabian J. Theis Technical University of Munich
Christophe Croux
Christophe Croux EDHEC Business School
Matti Isohanni
Matti Isohanni University of Oulu
Visa Koivunen
Visa Koivunen Aalto University
Tommi Härkänen
Tommi Härkänen Finnish Institute for Health and Welfare (THL)
Jim Todd
Jim Todd London School of Hygiene & Tropical Medicine

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