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Numerical Optimization, Statistics, Algorithms

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Iceland

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Employment (4)

University of Iceland: Reykjavik, IS

2005-01-01 to present | Professor (Computer Science)
Employment
Source: Self-asserted source
Kristján Jónasson

University of Iceland: Reykjavik, IS

1983-08-01 to 2004-12-31 | Lecturer (some years part time) (Mathematics)
Employment
Source: Self-asserted source
Kristján Jónasson

Decode Genetics: Reykjavik, IS

1998-01-08 to 2002-07-31 | Genetic statistics
Employment
Source: Self-asserted source
Kristján Jónasson

Icelandic Meteorological Office: Reykjavik, IS

1996-08-01 to 1998-07-31 | Avalanche hazards
Employment
Source: Self-asserted source
Kristján Jónasson

Education and qualifications (2)

University of Dundee: Dundee, Scotland, GB

1980-09-15 to 1985-12-01 | PhD (Numerical Analysis)
Education
Source: Self-asserted source
Kristján Jónasson

University of Iceland: Reykjavík, IS

1977-09-01 to 1980-06-01 | BS (Mathematics)
Education
Source: Self-asserted source
Kristján Jónasson

Works (34)

Prevalence and early‐life risk factors of school‐age allergic multimorbidity: The EuroPrevall‐iFAAM birth cohort

Allergy
2021-09 | Journal article
DOI: 10.1111/all.14857
Contributors: Sigurveig T. Sigurdardottir; Kristjan Jonasson; Michael Clausen; Kristin Lilja Bjornsdottir; Sigridur Erla Sigurdardottir; Graham Roberts; Kate Grimshaw; Nikolaos G. Papadopoulos; Paraskevi Xepapadaki; Ana Fiandor et al.
Source: check_circle
Crossref

A harmonised instrumental earthquake catalogue for Iceland and the northern Mid-Atlantic Ridge

Natural Hazards and Earth System Sciences
2021-07-21 | Journal article
DOI: 10.5194/nhess-21-2197-2021
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Páll Einarsson; Gunnar B. Guðmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

A Harmonised Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge

2021-05-11 | Other
DOI: 10.1002/essoar.10505713.4
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Pall Einarsson; Gunnar B Gudmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

A Harmonised Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge

2021-02 | Other
DOI: 10.1002/essoar.10505713.3
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Pall Einarsson; Gunnar B Gudmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

A Harmonised Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge

2021-02-04 | Preprint
DOI: 10.5194/nhess-2021-15
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Páll Einarsson; Gunnar B. Gudmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

A Harmonised Instrumental Earthquake Catalogue for Iceland and the Northern Mid-Atlantic Ridge

2021-01-13 | Other
DOI: 10.1002/essoar.10505713.2
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Pall Einarsson; Gunnar B Gudmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

A Harmonized Instrumental Earthquake Catalog for Iceland and the Northern Mid-Atlantic Ridge

2021-01-09 | Other
DOI: 10.1002/essoar.10505713.1
Contributors: Kristján Jónasson; Bjarni Bessason; Ásdís Helgadóttir; Pall Einarsson; Gunnar B Gudmundsson; Bryndís Brandsdóttir; Kristín S. Vogfjörd; Kristín Jónsdóttir
Source: check_circle
Crossref

Algorithm 1005

ACM Transactions on Mathematical Software
2020-03-31 | Journal article
DOI: 10.1145/3382191
Contributors: Kristjan Jonasson; Sven Sigurdsson; Hordur Freyr Yngvason; Petur Orri Ragnarsson; Pall Melsted
Source: check_circle
Crossref

The exact Gaussian likelihood estimation of time-dependent VARMA models

Computational statistics & data analysis
2014 | Journal article
Source: Self-asserted source
Kristján Jónasson

The Wind Energy Potential of Iceland

Renewable Energy
2014 | Journal article
Source: Self-asserted source
Kristján Jónasson

Applied Parallel and Scientific Computing

2012 | Book
DOI:

10.1007/978-3-642-28145-7

Part of ISSN:

0302-9743

ISBN:

978-3-642-28144-0
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search

Applied Parallel and Scientific Computing

2012 | Book
DOI:

10.1007/978-3-642-28151-8

Part of ISSN:

0302-9743

ISBN:

978-3-642-28150-1
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search

Empirical terrain models for surface wind and air temperature over Iceland

Report VÍ
2012 | Journal article
Source: Self-asserted source
Kristján Jónasson

Evaluation of WRF mesoscale model simulations of surface wind over Iceland

Report VÍ
2012 | Journal article
Source: Self-asserted source
Kristján Jónasson

Statistical correction of WRF mesoscale model simulations of surface wind over Iceland based on station data

Report VÍ
2012 | Journal article
Source: Self-asserted source
Kristján Jónasson

An empirical study of software architectures’ effect on product quality

Journal of Systems and Software
2011 | Journal article
Source: Self-asserted source
Kristján Jónasson

Vindhraðamælingar og sambreytni vinds

Report VÍ
2011 | Journal article
Source: Self-asserted source
Kristján Jónasson

Effects of knowledge, education, and experience on acceptance of first trimester screening for chromosomal anomalies

Acta obstetricia et gynecologica Scandinavica
2010 | Journal article
Source: Self-asserted source
Kristján Jónasson

Genome-wide search for breast cancer linkage in large Icelandic non-BRCA1/2 families

Breast Cancer Res
2010 | Journal article
Source: Self-asserted source
Kristján Jónasson

Algorithm 892

2009 | Journal article
DOI:

10.1145/1486525.1486531

Part of ISSN:

0098-3500
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search

Suspected infections in children treated for ALL

Acta paediatrica
2009 | Journal article
Source: Self-asserted source
Kristján Jónasson

Algorithm 878: Exact VARMA likelihood and its gradient for complete and incomplete data with Matlab

ACM Transactions on Mathematical Software (TOMS)
2008 | Journal article
Source: Self-asserted source
Kristján Jónasson

Cosmic rays, cloud condensation nuclei and clouds--a reassessment using MODIS data

Atmospheric Chemistry and Physics
2008 | Journal article
Source: Self-asserted source
Kristján Jónasson

Evaluating exact VARMA likelihood and its gradient when data are incomplete

ACM Transactions on Mathematical Software (TOMS)
2008 | Journal article
Source: Self-asserted source
Kristján Jónasson

Avalanche hazard zoning in Iceland based on individual risk

Annals of Glaciology
2004 | Journal article
Source: Self-asserted source
Kristján Jónasson

Linkage of osteoporosis to chromosome 20p12 and association to BMP2

PLoS biology
2003 | Journal article
Source: Self-asserted source
Kristján Jónasson

Allegro, a new computer program for multipoint linkage analysis

Nature genetics
2000 | Journal article
Source: Self-asserted source
Kristján Jónasson

Estimation of avalanche risk

Icelandic Meteorological Office Report
1999 | Journal article
Source: Self-asserted source
Kristján Jónasson

Fast multipoint linkage calculation with Allegro.

AMERICAN JOURNAL OF HUMAN GENETICS
1999 | Conference paper
Source: Self-asserted source
Kristján Jónasson

North Atlantic Climatological Dataset:(NACD version 1); final report

1996 | Book
Source: Self-asserted source
Kristján Jónasson

Corrected sequential linear programming for sparse minimax optimization

1994 | Journal article
DOI:

10.1007/bf01935647

Part of ISSN:

0006-3835
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search

Corrected sequential linear programming for sparse minimax optimization

BIT Numerical Mathematics
1994 | Journal article
Source: Self-asserted source
Kristján Jónasson

A projected conjugate gradient method for sparse minimax problems

1993 | Journal article
DOI:

10.1007/bf02108465

Part of ISSN:

1017-1398
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search

A Lagrangian Method for Multivariate Continuous Chebyshev Approximation Problems

1982 | Other
DOI:

10.1007/978-3-0348-7189-1_18

ISBN:

978-3-0348-7191-4
Source: Self-asserted source
Kristján Jónasson via Crossref Metadata Search
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