Harri Hakula

  • Otakaari 1 F, 02150 Espoo

19942019

Research output per year

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Research Output

2019

Asymptotic convergence of spectral inverse iterations for stochastic eigenvalue problems

Hakula, H. & Laaksonen, M., 1 Jan 2019, In : Numerische Mathematik. 142, 3, p. 577-609 33 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
1 Citation (Scopus)
165 Downloads (Pure)

Frequency response analysis of perforated shells with uncertain materials and damage

Hakula, H. & Laaksonen, M., 1 Dec 2019, In : Applied Sciences (Switzerland). 9, 24, p. 1-22 22 p., 5299.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
2 Citations (Scopus)
7 Downloads (Pure)

Multiparametric shell eigenvalue problems

Laaksonen, M. & Hakula, H., 1 Jan 2019, In : Computer Methods in Applied Mechanics and Engineering. 343, p. 721-745 25 p.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

On capacity computation for symmetric polygonal condensers

Bezrodnykh, S., Bogatyrëv, A., Goreinov, S., Grigor'ev, O., Hakula, H. & Vuorinen, M., 1 Dec 2019, In : Journal of Computational and Applied Mathematics. 361, p. 271-282 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
2 Citations (Scopus)

Pointwise error estimate of the Legendre expansion: The known and unknown features

Babuska, I. & Hakula, H., 1 Mar 2019, In : Computer Methods in Applied Mechanics and Engineering. 345, p. 748-773 26 p.

Research output: Contribution to journalArticleScientificpeer-review

The Conjugate Function Method and Conformal Mappings in Multiply Connected Domains

Hakula, H., Quach, T. & Rasila, A., 2019, In : SIAM Journal on Scientific Computing. 41, 3, p. A1753-A1776 24 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
83 Downloads (Pure)
2018

An a posteriori estimator of eigenvalue/eigenvector error for penalty-type discontinuous Galerkin methods

Giani, S., Grubisic, L., Hakula, H. & Ovall, J. S., Feb 2018, In : Applied Mathematics and Computation. 319, p. 562-574

Research output: Contribution to journalArticleScientificpeer-review

Conformal modulus and planar domains with strong singularities and cusps

Hakula, H., Rasila, A. & Vuorinen, M., 1 Jan 2018, In : Electronic Transactions on Numerical Analysis. 48, p. 462-478 17 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
3 Citations (Scopus)
105 Downloads (Pure)

Cylindrical Shell with Junctions: Uncertainty Quantification of Free Vibration and Frequency Response Analysis

Laaksonen, M., Hakula, H. & Kaarnioja, V., 2 Dec 2018, In : Shock and Vibration. 2018, 16 p., 5817940.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
2 Citations (Scopus)
102 Downloads (Pure)
Open Access
File
1 Citation (Scopus)
136 Downloads (Pure)

Spatial Mappings for Planning and Optimization of Cellular Networks

G., D. G., Hakula, H., Rasila, A. & Hamalainen, J., 2018, In : IEEE-ACM TRANSACTIONS ON NETWORKING. 26, 1, p. 175-188 14 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
7 Citations (Scopus)
165 Downloads (Pure)
2017

A Posteriori Estimates Using Auxiliary Subspace Techniques

Hakula, H., Neilan, M. & Ovall, J. S., 1 Jul 2017, In : JOURNAL OF SCIENTIFIC COMPUTING. 72, 1, p. 97-127 31 p.

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Stochastic Galerkin approximation of the Reynolds equation with irregular film thickness

Gustafsson, T., Hakula, H. & Leinonen, M., Oct 2017, In : Computers and Mathematics with Applications. 74, 7, p. 1590-1606

Research output: Contribution to journalArticleScientificpeer-review

2015

A Maximum Cluster Algorithm for Checking the Feasibility of Dial-A-Ride Instances

Hame, L. & Hakula, H., 2015, In : TRANSPORTATION SCIENCE. 49, 2, p. 295-310

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Approximate methods for stochastic eigenvalue problems

Hakula, H., Kaarnioja, V. & Laaksonen, M., 2015, In : Applied Mathematics and Computation. 267, p. 664-681

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Hybrid Stochastic Finite Element Method for Mechanical Vibration Problems

Hakula, H. & Laaksonen, M., 2015, In : Shock and Vibration. 2015, p. 812069

Research output: Contribution to journalArticleScientificpeer-review

2014

Application of stochastic Galerkin FEM to the complete electrode model of electrical impedance tomography

Leinonen, M., Hakula, H. & Hyvonen, N., 2014, In : Journal of Computational Physics. 269, 1, p. 181-200

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

hp-boundary layer mesh sequences with applications to shell problems

Hakula, H., 2014, In : Computers and Mathematics with Applications. 67, 4, p. 899-917

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

On hp-adaptive solution of thin shells of revolution

Hakula, H. & Tuominen, T., 2014, In : IOP Conference Series: Materials Science and Engineering. 10, 1, 10 p., 012163.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
File
100 Downloads (Pure)

Reconstruction algorithm based on stochastic Galerkin finite element method for electrical impedance tomography

Hakula, H., Hyvönen, N. & Leinonen, M., 2014, In : Inverse Problems. 30, 6, p. 065006

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Surface plasmon resonances on cones and wedges

Kettunen, H., Chesnel, L., Hakula, H., Wallén, H. & Sihvola, A., 2014, 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (Metamaterials 2014), Copenhagen, Denmark, 24-30 August 2014. Copenhagen, Denmark, p. 163-165 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)
2013

Computation of exterior moduli of quadrilaterals

Hakula, H., Rasila, A. & Vuorinen, M., 2013, In : Electronic Transactions on Numerical Analysis. 40, p. 436-451

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Dynamic journeying in scheduled networks

Hame, L. & Hakula, H., 2013, In : IEEE Transactions on Intelligent Transportation Systems. 14, 1, p. 360-369 10 p., 6293897.

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Dynamic journeying under uncertainty

Häme, L. & Hakula, H., 16 Mar 2013, In : European Journal of Operational Research. 225, 3, p. 455-471 17 p.

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Kokonaissuunnittelu Aalto-yliopistossa

Hakula, H., Karinen, R., Kauranne, H., Liinaharja, M., Mälkki, H., Paatero, J. & Virtanen, T., 2013, Opettajan muuttuvat roolit - yhdessä yhteisölliseen opetuksen kehittämiseen. Lampinen, M. (ed.). Helsinki: Aalto ARTS Books, p. 73 (Aalto-yliopiston julkaisusarja CROSSOVER; vol. 2013, no. 17).

Research output: Chapter in Book/Report/Conference proceedingChapterProfessional

Open Access

Mathematica implementation of the high order finite element method applied to eigenproblems

Hakula, H. & Tuominen, T., May 2013, In : COMPUTING: ARCHIVES FOR SCIENTIFIC COMPUTING. 95, SUPPL.1

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Routing by ranking: A link analysis method for the constrained dial-A-ride problem

Häme, L. & Hakula, H., 2013, In : Operations Research Letters. 41, 6, p. 664-669 6 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)
2012

Conjugate function method for numerical conformal mappings

Hakula, H., Quach, T. & Rasila, A., 2012, In : Journal of Computational and Applied Mathematics. 237, p. 340-353

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Fine-tuning electrode information in electrical impedance tomography

Darde, J., Hakula, H., Hyvönen, N. & Staboulis, S., 2012, In : Inverse Problems and Imaging. 6, 6, p. 399-421

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Kokonaissuunnittelu, linjakkaan ja oppimislähtöisen opetuksen peruskivi

Hakula, H., Karinen, R., Kauranne, H., Mälkki, H., Paatero, J. & Virtanen, T., 2012, Peda-Forum-päivät, Aalto-yliopisto, Otaniemi, 21.- 22.8.2012. Espoo, Otaniemi: Aalto ARTS Books, p. 51

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

On the hp-adaptive solution of complete electrode model forward problems of electrical impedance tomography

Hakula, H., Hyvönen, N. & Tuominen, T., 2012, In : Journal of Computational and Applied Mathematics. 236, 236, p. 4645-4659

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
2011

Aktivoiviin opetusmenetelmiin perustuvat matematiikan opetuskokeilut Aalto-yliopistossa

Havola, L., Majander, H., Hakula, H., Alestalo, P. & Rasila, A., 2011, Tuovi 9: Interaktiivinen tekniikka koulutuksessa 2011 -konferenssin tutkijatapaamisen artikkelit. Viteli, J. & Östman, A. (eds.). Tampere, p. 5-9

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

On Moduli of Rings and Quadrilaterals: Algorithms and Experiments

Hakula, H., Rasila, A. & Vuorinen, M., 2011, In : SIAM Journal on Scientific Computing. 33, 1, p. 279-302

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Sweep data of electrical impedance tomography

Hakula, H., Harhanen, L. & Hyvönen, N., 2011, In : Inverse Problems. 27, 11, p. 115006

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

The Traveling Salesman Problem with Differential Neighborhoods

Häme, L., Hyytiä, E. & Hakula, H., 2011, The 27th European Workshop on Computational Geometry (EuroCG) , March 28-30, 2011, Antoniushaus Morschach, Switzerland.. p. 51-54

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2009

Conditionally Gaussian Hypermodels for Cerebral Source Localization

Calvetti, D., Hakula, H., Pursiainen, S. & Somersalo, E., 2009, In : SIAM JOURNAL ON IMAGING SCIENCES. 2, 3, p. 879-909

Research output: Contribution to journalArticleScientificpeer-review

On computation of test dipoles for factorization method

Hakula, H. & Hyvönen, N., 2009, In : BIT. 49, p. 75-91

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

On moduli of rings and quadrilaterals: algorithms and experiments

Hakula, H., Rasila, A. & Vuorinen, M., 2009, Espoo, p. 21, (Helsinki University of Technology, Institute of Mathematics Research Reports; no. A575).

Research output: Working paperProfessional

On the asymptotic behaviour of shells of revolution in free vibration

Artioli, E., Beirao da Veiga, L., Hakula, H. & Lovadina, C., 2009, In : COMPUTATIONAL MECHANICS. 44, 1, p. 45-60

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)
2008

Conditionally Gaussian hypermodels for source localization in brain imaging

Calvetti, D., Hakula, H., Pursiainen, S. & Somersalo, E., 2008, In : arXiv.org.

Research output: Contribution to journalArticleProfessional

Free vibrations for some Koiter shells of revolution

Artioli, E., de Veiga, L. B., Hakula, H. & Lovadina, C., 2008, In : Applied Mathematics Letters. 21, 12, p. 1245-1248

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Point load on a shell

Niemi, A. H., Pitkäranta, J. & Hakula, H., 2008, Numerical mathematics and advanced applications. Berlin, p. 819-826

Research output: Chapter in Book/Report/Conference proceedingChapterScientificpeer-review

The factorization method applied to the complete electrode model of impedance tomography

Lechleiter, A., Hyvönen, N. & Hakula, H., 2008, In : SIAM Journal on Applied Mathematics. 68, 4, p. 1097-1121

Research output: Contribution to journalArticleScientificpeer-review

35 Citations (Scopus)

Two noniterative algorithms for locating inclusions using one electrode measurement of electric impedance tomography

Hakula, H. & Hyvonen, N., 2008, In : Inverse Problems. 24, 5, p. 055018

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)
2007

Benchmark computations on point-loaded shallow shells: Fourier vs.FEM

Niemi, A. H., Pitkäranta, J. & Hakula, H., 2007, In : Computer Methods in Applied Mechanics and Engineering. 196, 4-6, p. 894-907

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Numerical implementation of the factorization method within the complete electrode model of electrical impedance tomography

Hyvönen, N., Hakula, H. & Pursiainen, S., 2007, In : Inverse Problems and Imaging. 1, 2, p. 299-317

Research output: Contribution to journalArticleScientificpeer-review

2006

A High-order Finite Element Method for Electical Impedance Tomography

Pursiainen, S. & Hakula, H., 2006, In : PIERS Online. 2, 3, p. 260-264

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)
2005

A benchmark study: MITC4-S and boundary layer-type deformations

Niemi, A., Pitkäranta, J. & Hakula, H., 2005, The 18th Nordic Seminar on Computational Mechanics, Silja Serenade, 27.-30.10.2005. Paavola, J. & Freund, J. (eds.). Helsinki, p. 71-74 (Rakenteiden mekaniikka; vol. 38, no. 3).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2004

On sensitive shell under different loadings

Havu, V. & Hakula, H., 2004, 4th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyväskylä, 2004. Neittaanmäki, P., Rossi, T., Korotov, S., Onate, E., Periaux, J. & Knörzer, D. (eds.). Jyväskylä: ECCOMAS, Jyväskylän yliopisto

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2003

A benchmark study of elliptic and hyperbolic shells of revolution

Havu, V., Hakula, H. & Tuominen, T., 2003, Espoo, p. 15, (Helsinki University of Technology Institute of Mathematics Research Reports; no. A456).

Research output: Working paperProfessional