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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

Where does money matter more?Journal of Economic Behavior & Organization

2023

USER EXPERIENCE WITH EDUCATIONAL TECHNOLOGY IN AFRICAN SLUMS

2022

Mathematics and incentives in the slums
MATHEMATICS AND INCENTIVES IN THE SLUMS

2021

Learning and evaluation without access to schools during COVID-19
LEARNING AND EVALUATION WITHOUT ACCESS TO SCHOOLS DURING COVID-19
IDENTIFYING ROTE LEARNING AND THE SUPPORTING EFFECTS OF HINTS IN DRILLS
THE EFFECT OF THE NUMBER OF DISTRACTORS AND THE "NONE OF THE ABOVE" - "ALL OF THE ABOVE" OPTIONS IN MULTIPLE CHOICE QUESTIONS

2020

Simulating trade-offs between socio-economic and conservation objectives for Lake Victoria (East Africa) using multispecies, multifleet ecosystem modelsFisheries Research
Comparison and evaluation of approaches aimed at correcting or reducing selectivity bias in growth parameter estimates for fishesFisheries Research

2019

Ecosystem models of Lake Victoria (East Africa): Can Ecopath with Ecosim and Atlantis predict similar policy outcomes?Journal of Great Lakes Research
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
Aspects of both growth and selectivity affect growth parameter estimation biasFisheries Research
Aspects of both growth and selectivity affect growth parameter estimation biasFisheries Research

2018

Evaluation of Ptarmigan Management with a Population Reconstruction ModelThe Journal of Wildlife Management
Evaluating the effectiveness of real-time closures for reducing susceptibility of small fish to captureICES Journal of Marine Science
Evaluation of ptarmigan management with a population reconstruction modelJournal of Wildlife Management
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
ForewordScientia Marina
End-to-end model of Icelandic waters using the Atlantis framework: Exploring system dynamics and model reliabilityFisheries Research

2017

From Smileys to Smileycoins: Using a Cryptocurrency in EducationLedger
Prediction of Lake Victoria's response to varied fishing regimes using the Atlantis ecosystem modelFisheries Research
Feather holes of rock ptarmigan are associated with amblyceran chewing liceWildlife Biology
EVIDENCE-BASED TECHNOLOGY TO ENHANCE MATHEMATICS EDUCATION FROM ICELAND TO KENYAINTED2017: 11TH INTERNATIONAL TECHNOLOGY, EDUCATION AND DEVELOPMENT CONFERENCE
Difference in learning among students doing pen-and-paper homework compared to web-based homework in an introductory statistics courseJournal of Statistics Education
Prediction of Lake Victoria's response to varied fishing regimes using the Atlantis ecosystem modelFisheries Research
From Smileys to Smileycoins: Using a Cryptocurrency in EducationLedger
Feather holes of rock ptarmigan are associated with amblyceran chewing liceWildlife Biology
Detection of a changepoint, a mean-shift accompanied with a trend change, in short time-series with autocorrelationCommunications in Statistics: Simulation and Computation

2016

Exploring Lake Victoria ecosystem functioning using the Atlantis modeling frameworkEnvironmental Modelling & Software
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
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
Host-parasite interactions and population dynamics of rock ptarmiganPLoS ONE
Exploring Lake Victoria ecosystem functioning using the Atlantis modeling frameworkEnvironmental Modelling and Software

2015

A competitive coevolution scheme inspired by DEIEEE SSCI 2014 - 2014 IEEE Symposium Series on Computational Intelligence - SDE 2014: 2014 IEEE Symposium on Differential Evolution, Proceedings
Development and use of an adaptive learning environment to research online study behaviourEducational Technology and Society
Development and Use of an Adaptive Learning Environment to Research Online Study BehaviourEducational Technology & Society
The effect of SNPs on expression levels in Nimblegen RNA expression microarraysInternational Journal of Data Mining and Bioinformatics
A FREELY AVAILABLE MOBILE WEB FOR ENHANCING MATHEMATICS AND STATISTICS EDUCATION: THE TUTOR-WEBEDULEARN15: 7TH INTERNATIONAL CONFERENCE ON EDUCATION AND NEW LEARNING TECHNOLOGIES
The relationship between parasites and spleen and bursa mass in the Icelandic Rock Ptarmigan Lagopus mutaJournal of Ornithology

2014

Temporal trends of contaminants in cod from Icelandic watersScience of the Total Environment
A bootstrap method for estimating bias and variance in statistical fisheries modelling frameworks using highly disparate datasetsAfrican Journal of Marine Science
A Method for Detecting Long Non-Coding RNAs with Tiled RNA Expression MicroarraysPlos One
From evaluation to learning: Some aspects of designing a cyber-universityComputers & Education
A Small-Scale Comparison of Iceland Scallop Size Distributions Obtained from a Camera Based Autonomous Underwater Vehicle and Dredge SurveyPlos One

2013

A CAMERA-BASED AUTONOMOUS UNDERWATER VEHICLE SAMPLING APPROACH TO QUANTIFY SCALLOP ABUNDANCEJournal of Shellfish Research
ENHANCED LEARNING WITH WEB-ASSISTED EDUCATION: THE TUTOR-WEBEDULEARN13: 5TH INTERNATIONAL CONFERENCE ON EDUCATION AND NEW LEARNING TECHNOLOGIES
Spatial and temporal trends of contaminants in mussel sampled around the Icelandic coastlineScience of the Total Environment

2012

Habitat preference of sea cucumbers: Holothuria atra and Holothuria edulis in the coastal waters of Sri LankaJournal of the Marine Biological Association of the United Kingdom
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

2011

A CASE STUDY OF SAMPLING STRATEGIES FOR ESTIMATING THE LENGTH COMPOSITION OF COMMERCIAL CATCHES: THE SRI LANKAN SHRIMP TRAWL FISHERYCrustaceana
First implementation of a Gadget model for the analysis of hake in the MediterraneanFisheries Research
Robustness of fish assemblages derived from three hierarchical agglomerative clustering algorithms performed on Icelandic groundfish survey dataIces Journal of Marine Science
A FREELY AVAILABLE CYBER-UNIVERSITY FOR PERSONALIZED EDUCATIONEDULEARN11: 3RD INTERNATIONAL CONFERENCE ON EDUCATION AND NEW LEARNING TECHNOLOGIES

2010

Reproductive biology of the commercial sea cucumber Holothuria atra (Holothuroidea: Aspidochirotida) in the northwestern coastal waters of Sri LankaInvertebrate Reproduction & Development
Reproductive biology of the commercial sea cucumber Holothuria atra (Holothuroidea: Aspidochirotida) in the northwestern coastal waters of Sri LankaInvertebrate Reproduction & Development
Abundance and distribution of commercial sea cucumber species in the coastal waters of Sri LankaAquatic Living Resources

2008

On the use of tagging data in statistical multispecies multi-area models of marine populationsICES JOURNAL OF MARINE SCIENCE
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
Bathymetric preferences of juvenile European hake (Merluccius merluccius)ICES JOURNAL OF MARINE SCIENCE
SUPPLY CHAIN INTERFACES: DEFINING ATTRIBUTES AND ATTRIBUTE VALUES FOR COLLABORATIVE LOGISTICS MANAGEMENTJournal of Business Logistics

2007

A simple implementation of the statistical modelling framework Gadget for cod in Icelandic watersAFRICAN JOURNAL OF MARINE SCIENCE

2006

Designing marine protected areas for migrating fish stocksJOURNAL OF FISH BIOLOGY
Decimals in data valuesACTA OPHTHALMOLOGICA SCANDINAVICA

2005

Computerisation of the Icelandic state and municipalities: From 1964 to 1985IFIP Advances in Information and Communication Technology
Combining control measures for more effective management of fisheries under uncertainty: Quotas, effort limitation and protected areasPhilosophical Transactions of the Royal Society B: Biological Sciences
Computerisation of the Icelandic state and municipalities: From 1964 to 1985IFIP Advances in Information and Communication Technology
Computerisation of the Icelandic state and municipalities - From 1964 to 1985History of Nordic Computing
Combining control measures for more effective management of fisheries under uncertainty: quotas, effort limitation and protected areasPHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES

2004

When can marine reserves improve fisheries management?Ocean and Coastal Management
Analysis of cod catch data from Icelandic groundfish surveys using generalized linear modelsFISHERIES RESEARCH
The tutor-web: An educational system for classroom presentation, evaluation and self-studyCOMPUTERS & EDUCATION
Examining the importance of consistency in multi-vessel trawl survey design based on the US west coast groundfish bottom trawl surveyFISHERIES RESEARCH
A model for categorical length data from groundfish surveysCANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
When can marine reserves improve fisheries management?OCEAN & COASTAL MANAGEMENT

2003

Multi-species and ecosystem models in a management contextResponsible Fisheries in the Marine Ecosystem
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
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
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
Growth and Maturation of Haddock ( Melanogrammus aeglefinus ) in Icelandic WatersJournal of Northwest Atlantic Fishery 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
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
Comparing different information sources in a multispecies contextFishery Stock Assessment Models
Rational harvesting of the cod-capelin-shrimp complex in the Icelandic marine ecosystemFISHERIES RESEARCH
A framework for multispecies modelling of Arcto-boreal systemsREVIEWS IN FISH BIOLOGY AND FISHERIES
Points of view: A framework for multispecies modelling of Arcto-boreal systemsReviews in Fish Biology and Fisheries
A framework for multispecies modelling of Arcto-boreal systemsREVIEWS 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
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
Statistical evaluation and modelling of the stomach contents of icelandic cod (Gadus morhua)Canadian Journal of Fisheries and Aquatic Sciences
Potential collapse of North Sea cod stocksNATURE
On Dynamic Interactions Between Some Fish Resources and Cetaceans off Iceland Based on a Simulation ModelJournal of Northwest Atlantic Fishery Science
Statistical evaluation and modelling of the stomach contents of Icelandic cod (Gadus morhua)CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
On dynamic interactions between some fish resources and cetaceans off Iceland based on a simulation modelJournal of Northwest Atlantic Fishery Science
Utilization of the icelandic cod stock in a multispecies contextMarine Resource Economics
Statistical evaluation and modelling of the stomach contents of Icelandic cod (Gadus morhua)Canadian Journal of Fisheries and Aquatic Sciences
Potential collapse of North Sea cod stocksNATURE

1996

On the rational utilization of the Icelandic cod stockICES JOURNAL OF MARINE SCIENCE
Analysis of groundfish survey abundance data: Combining the GLM and delta approachesICES JOURNAL OF MARINE SCIENCE
Analysis of groundfish survey abundance data: Combining the GLM and delta approachesICES Journal of Marine Science
On the rational utilization of the Icelandic cod stockICES JOURNAL OF MARINE SCIENCE
Analysis of groundfish survey abundance data: Combining the GLM and delta approachesICES JOURNAL OF MARINE SCIENCE

1994

CANNIBALISM AND YEAR-CLASS STRENGTH IN ATLANTIC COD (GADUS-MORHUA L) IN ARCTO-BOREAL ECOSYSTEMS (BARENTS SEA, ICELAND, AND EASTERN NEWFOUNDLAND)Cod and Climate Change - Proceedings of a Symposium

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
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
Stock'related changes in biological parameters of the Icelandic summer'Spawning herringFisheries Oceanography

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
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
Icelandic groundfish survey data used to improve precision in stock assessmentsJournal of Northwest Atlantic Fishery Science

1988

On confidence sets in multiple comparisonsStatistical decision theory and related topics IV
On confidence sets in multiple comparisonsStatistical decision theory and related topics IV
On confidence sets in multiple comparisonsStatistical decision theory and related topics IV
On confidence sets in multiple comparisonsStatistical decision theory and related topics IV

Keywords for Specialisation:

Statistics and its applications

Models within education and fishery science

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