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Forsíða

Gunnar Stefánsson - Professor

Gunnar Stefánsson

–

School of Engineering and Natural Sciences

Gunnar Stefánsson

Professor

Professor of statistics

Location
Tæknigarður / Tg-218
Phone
525 - 5915
Email
gunnar [at] hi.is

Unit
Faculty of Physical Sciences
Website
http://www.hi.is/~gunnar
Published Work
Gunnar Stefánsson - published work

Curriculum Vitae
Gunnar Stefánsson - Curriculum Vitae
ORCID site
https://orcid.org/0000-0002-2693-9142
Research portal – Gunnar Stefánsson

Published works

2024

Using the Open Source Collaborative Model for Digital Educational Content
Where does money matter more?Journal of Economic Behavior and Organization

2023

USER EXPERIENCE WITH EDUCATIONAL TECHNOLOGY IN AFRICAN SLUMS

2022

MATHEMATICS AND INCENTIVES IN THE SLUMS
Spatiotemporal variation in fishing patterns and fishing pressure in Lake Victoria (East Africa) in relation to balanced harvestFisheries Research

2021

LEARNING AND EVALUATION WITHOUT ACCESS TO SCHOOLS DURING COVID-19INTED 2021 Proceedings
THE EFFECT OF THE NUMBER OF DISTRACTORS AND THE "NONE OF THE ABOVE" - "ALL OF THE ABOVE" OPTIONS IN MULTIPLE CHOICE QUESTIONS.INTED 2021 Proceedings
Estimating F_msy from an ensemble of data sources to account for density dependence in Northeast Atlantic fish stocksICES Journal of Marine Science
Using real data for statistics education in an open-source learning environmentTeaching Statistics
Corrigendum Estimating Fmsy from an ensemble of data sources to account for density dependence in Northeast Atlantic fish stocksICES Journal of Marine Science
IDENTIFYING ROTE LEARNING AND THE SUPPORTING EFFECTS OF HINTS IN DRILLS.INTED 2021 Proceedings

2020

Comparison and evaluation of approaches aimed at correcting or reducing selectivity bias in growth parameter estimates for fishesFisheries Research
Ecosystem modelling of data-limited fisheriesJournal of Great Lakes Research
Catch-quota matching allowances balance economic and ecological targets in a fishery managed by individual transferable quotaProceedings of the National Academy of Sciences of the United States of America
Simulating trade-offs between socio-economic and conservation objectives for Lake Victoria (East Africa) using multispecies, multifleet ecosystem modelsFisheries Research

2019

Aspects of both growth and selectivity affect growth parameter estimation biasFisheries Research
From Multiple-Choice Through Free-Text Submissions and Qualitative Peer-Reviews To Grading Students and Reviewers.INTED2019 Proceedings
Learning Wherever, Whenever: Education in a Suitcase.EDULEARN19 Proceedings
Understanding ontogenetic and temporal variability of Eastern Baltic cod diet using a multispecies model and stomach dataFisheries Research
Implementing the Ecosystem Approach to Fisheries ManagementFisheries Research
Drivers of growth for Atlantic cod (Gadus morhua L.) in Icelandic waters – A Bayesian approach to determine spatiotemporal variation and its causesJournal of Fish Biology
Ecosystem models of Lake Victoria (East Africa)Journal of Great Lakes Research

2018

End-to-end model of Icelandic waters using the Atlantis framework: Exploring system dynamics and model reliabilityFisheries Research
Evaluating the effectiveness of real-time closures for reducing susceptibility of small fish to captureICES Journal of Marine Science
End-to-end model of Icelandic waters using the Atlantis framework: Exploring system dynamics and model reliabilityFisheries Research
Applying System Analysis and System Dynamics Modelling In Complex Research Projects - The Case Of VALUMICSInternational Journal on Food System Dynamics
Evaluation of ptarmigan management with a population reconstruction modelJournal of Wildlife Management

2017

Feather holes of rock ptarmigans are associated with amblyceran chewing liceWildlife Biology
Prediction of Lake Victoria's response to varied fishing regimes using the Atlantis ecosystem modelFisheries Research
EVIDENCE-BASED TECHNOLOGY TO ENHANCE MATHEMATICS EDUCATION FROM ICELAND TO KENYA.NTED2017 Proceedings
From Smileys to Smileycoins: Using a Cryptocurrency in EducationLedger
Difference in learning among students doing pen-and-paper homework compared to web-based homework in an introductory statistics courseJournal of Statistics Education
Detection of a changepoint, a mean-shift accompanied with a trend change, in short time-series with autocorrelationCommunications in Statistics: Simulation and Computation

2016

Host-Parasite Interactions and Population Dynamics of Rock PtarmiganPLoS ONE
Simulation of Lake Victoria circulation patterns using the regional ocean Modeling system (ROMS)PLoS ONE
Optimized Sampling Strategies for Identifying Modes in Length-frequency DistributionsCommunications in Statistics: Simulation and Computation
Exploring Lake Victoria ecosystem functioning using the Atlantis modeling frameworkEnvironmental Modelling and Software

2015

Design and Analysis of Experiments Linking on-line Drilling Methods to Improvements in KnowledgeJournal of Statistical Science and Application
Development and use of an adaptive learning environment to research online study behaviourEducational Technology and Society
A competitive coevolution scheme inspired by DE
The effect of SNPs on expression levels in Nimblegen RNA expression microarraysInternational Journal of Data Mining and Bioinformatics

2014

From evaluation to learningComputers and Education
Temporal trends of contaminants in cod from icelandic watersScience of the Total Environment
A small-scale comparison of Iceland scallop size distributions obtained from a camera based autonomous underwater vehicle and dredge surveyPLoS ONE
A bootstrap method for estimating bias and variance in statistical fisheries modelling frameworks using highly disparate datasetsAfrican Journal of Marine Science
The relationship between parasites and spleen and bursa mass in the Icelandic Rock Ptarmigan Lagopus mutaJournal of Ornithology
A method for detecting long non-coding RNAs with tiled RNA expression microarraysPLoS ONE
A mobile web for enhancing statistics and mathematics educationICOTS 9 proceedings

2013

ENHANCED LEARNING WITH WEB-ASSISTED EDUCATION: THE TUTOR-WEB.EDULEARN13
Spatial and temporal trends of contaminants in mussel sampled around the Icelandic coastlineScience of the Total Environment
A camera-based autonomous underwater vehicle sampling approach to quantify scallop abundanceJournal of Shellfish Research
The Tutor-Web for Math and Stats: A Content Storage and Drilling SystemJSM Proceedings: American Statistical Association
Könnunarpróf nýnema í stærðfræði við Háskóla ÍslandsTímarit um menntarannsóknir

2012

Present status of the commercial sea cucumber fishery off the north-west and east coasts of Sri LankaJournal of the Marine Biological Association of the United Kingdom
Habitat preference of sea cucumbersJournal of the Marine Biological Association of the United Kingdom

2011

Robustness of fish assemblages derived from three hierarchical agglomerative clustering algorithms performed on Icelandic groundfish survey dataICES Journal of Marine Science
The potential use of a Gadget model to predict stock responses to climate change in combination with Bayesian networks: the case of Bay of Biscay anchovyICES Journal of Marine Science
A case study of sampling strategies for estimating the length composition of commercial catchesCrustaceana
First implementation of a Gadget model for the analysis of hake in the MediterraneanFisheries Research
Web-assisted education: From evaluation to learningJournal of Instructional Psychology
A freely available cyber-university for personalized educationEdulearn11

2010

On building a web-based university US-China Educational Review
Reproductive biology of the commercial sea cucumber holothuria atra (holothuroideaInvertebrate Reproduction and Development
Abundance and distribution of commercial sea cucumber species in the coastal waters of Sri LankaAquatic Living Resources

2009

Identification and classification of expressed RNA probes in microarray experiments Joint Statistical Meetings (JSM) proceedings, Biometrics Section
Interactive quizzes for continuous learning and evaluation
The tutor-web, a step towards building an active web based university
Greining á framförum nemenda innan vefkerfis sem býður upp á gagnvirk krossaprófRAUST - Tímarit um raunvísindi og stærðfræði

2008

Bathymetric preferences of juvenile European hake (Merluccius merluccius)ICES Journal of Marine Science
On the use of tagging data in statistical multispecies multi-area models of marine populationsICES Journal of Marine Science

2007

A simple implementation of the statistical modelling framework Gadget for cod in Icelandic watersAfrican Journal of Marine Science

2006

Decimals in data valuesActa Ophthalmologica Scandinavica
Designing marine protected areas for migrating fish stocksJournal of Fish Biology

2005

Combining control measures for more effective management of fisheries under uncertaintyPhilosophical Transactions of the Royal Society B: Biological Sciences

2004

The tutor-webComputers and Education
Analysis of cod catch data from Icelandic groundfish surveys using generalized linear modelsFisheries Research
A model for categorical length data from groundfish surveysCanadian Journal of Fisheries and Aquatic Sciences
When can marine reserves improve fisheries management?Ocean and Coastal Management
Examining the importance of consistency in multi-vessel trawl survey design based on the U.S. west coast groundfish bottom trawl surveyFisheries Research

2003

Mat á lengdardreifingumRAUST - Tímarit um raunvísindi og stærðfræði
Issues in multispecies modelsNatural Resource Modeling

2001

Estimating uncertainty in fish stock assessment and forecastingFish and Fisheries

2000

Spatial variation in abundance, size composition and viable egg production of spawning cod (Gadus morhua L.) in Icelandic watersICES Journal of Marine Science

1999

Management of summer-spawning herring off IcelandICES Journal of Marine Science
Growth and maturation of haddock (Melanogrammus aeglefinus) in Icelandic watersJournal of Northwest Atlantic Fishery Science

1998

Aspects of the ecology of a Boreal systemICES Journal of Marine Science
Rational harvesting of the cod-capelin-shrimp complex in the Icelandic marine ecosystemFisheries Research
Points of viewReviews in Fish Biology and Fisheries

1997

On dynamic interactions between some fish resources and cetaceans off Iceland based on a simulation modelJournal of Northwest Atlantic Fishery Science
Potential collapse of North Sea cod stocksNature
Statistical evaluation and modelling of the stomach contents of icelandic cod (Gadus morhua)Canadian Journal of Fisheries and Aquatic Sciences
Utilization of the icelandic cod stock in a multispecies contextMarine Resource Economics

1996

Analysis of groundfish survey abundance dataICES Journal of Marine Science
On the rational utilization of the Icelandic cod stockICES Journal of Marine Science

1993

Stock'related changes in biological parameters of the Icelandic summer'Spawning herringFisheries Oceanography
Definition of the problem of estimating fish abundance over an area from acoustic line-transect measurements of densityICES Journal of Marine Science

1989

A feedback strategy to regulate catches from a whale stockReports - International Whaling Commission, Special Issue
Icelandic groundfish survey data used to improve precision in stock assessmentsJournal of Northwest Atlantic Fishery Science

Keywords for Specialisation:

Statistics and its applications

Models within education and fishery science

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