Steffen Fritz

发表

Towards a geospatial Wikipedia (Abstract)

Steffen Fritz, Ian McCallum, Christian Schill, 2009 .

An Experimental Framework for Integrating Citizen and Community Science into Land Cover, Land Use, and Land Change Detection Processes in a National Mapping Agency

Steffen Fritz, Laurence Jolivet, Ana-Maria Olteanu-Raimond, 2018 .

THE PICTURE PILE TOOL FOR RAPID IMAGE ASSESSMENT: A DEMONSTRATION USING HURRICANE MATTHEW

Steffen Fritz, Linda See, Tobias Sturn, 2018 .

Landspotting - Games for improving global land cover

Michael Wimmer, Steffen Fritz, Peter Purgathofer, 2013, FDG.

Assessing the Accuracy of Volunteered Geographic Information arising from Multiple Contributors to an Internet Based Collaborative Project

Steffen Fritz, Christian Schill, Christoph Perger, 2013, Trans. GIS.

Data Citation Standard: A Means to Support Data Sharing, Attribution, and Traceability

Steffen Fritz, Ian McCallum, Stefano Nativi, 2012 .

Mapping Cropland in Ethiopia Using Crowdsourcing

Steffen Fritz, Ian McCallum, Christoph Perger, 2013 .

Limitations of Majority Agreement in Crowdsourced Image Interpretation

Steffen Fritz, Tobias Sturn, Linda M. See, 2017, Trans. GIS.

Geo-Wiki.Org: The Use of Crowdsourcing to Improve Global Land Cover

Steffen Fritz, Ian McCallum, Christian Schill, 2009, Remote. Sens..

Cropland Capture: A game to improve global cropland through crowdsourcing

Steffen Fritz, Ian McCallum, Christian Schill, 2014 .

Comparison of land cover maps using fuzzy agreement

Steffen Fritz, Linda M. See, S. Fritz, 2005, Int. J. Geogr. Inf. Sci..

Improving Cloud Detection in Satellite Imagery using a Citizen Science Approach

Steffen Fritz, Linda See, Tobias Sturn, 2019 .

A method to compare and improve land cover datasets: application to the GLC-2000 and MODIS land cover products

Steffen Fritz, Linda M. See, S. Fritz, 2006, IEEE Transactions on Geoscience and Remote Sensing.

LACO-Wiki: A New Online Land Cover Validation Tool Demonstrated Using GlobeLand30 for Kenya

Steffen Fritz, Ian McCallum, Christoph Perger, 2017, Remote. Sens..

The ESA's Earth Observation Open Science Program [Space Agencies]

Yves-Louis Desnos, Steffen Fritz, Maurice Borgeaud, 2017, IEEE Geoscience and Remote Sensing Magazine.

Geo-Wiki: An online platform for improving global land cover

Steffen Fritz, Ian McCallum, Christian Schill, 2012, Environ. Model. Softw..

Harnessing the power of volunteers, the internet and Google Earth to collect and validate global spatial information using Geo-Wiki

Steffen Fritz, Ian McCallum, Christian Schill, 2015 .

Comparing Expert and Non-expert Conceptualisations of the Land: An Analysis of Crowdsourced Land Cover Data

Steffen Fritz, Ian McCallum, Alexis J. Comber, 2013, COSIT.

Building a Crowd-Sourcing Tool for the Validation of Urban Extent and Gridded Population

Steffen Fritz, Ian McCallum, Christian Schill, 2011, ICCSA.

Assessing metrics of user quality in a simple land cover validation task

Steffen Fritz, Linda See, Tobias Sturn, 2014 .

Assessing and Improving the Reliability of Volunteered Land Cover Reference Data

Steffen Fritz, Christoph Perger, Le Yu, 2017, Remote. Sens..

Engaging Citizens in Environmental Monitoring via Gaming

Steffen Fritz, Ian McCallum, Christoph Perger, 2018, Int. J. Spatial Data Infrastructures Res..

Eliciting and Formalizing the Intricate Semantics of Land Use and Land Cover Class Definitions

Steffen Fritz, Krzysztof Janowicz, Ola Ahlqvist, 2018, Land Use and Land Cover Semantics.

Praxisreport: Verfahren zur Evaluierung der Archivierbarkeit von Webobjekten

Steffen Fritz, 2015 .

Citizen Scientists Monitoring the Environment: The Latest Apps from IIASA

Steffen Fritz, Ian McCallum, Christoph Perger, 2018 .

A Conceptual Framework for Assessing the Benefits of a Global Earth Observation System of Systems

Steffen Fritz, Michael Obersteiner, Belinda Reyers, 2007, IEEE Systems Journal.

Geography Geo-Wiki in the Classroom: Using Crowdsourcing to Enhance Geographical Teaching

Steffen Fritz, Christoph Perger, Linda M. See, 2014, Future Internet.

Technologies to Support Community Flood Disaster Risk Reduction

Wei Liu, Steffen Fritz, Ian McCallum, 2016, International Journal of Disaster Risk Science.

Citizen Science & SDGs: Opportunities, Challenges, Recommendations

Steffen Fritz, Ian McCallum, Linda See, 2018 .

The Rise of Collaborative Mapping: Trends and Future Directions

Steffen Fritz, Jan de Leeuw, Linda M. See, 2013, ISPRS Int. J. Geo Inf..

A Unified Cropland Layer at 250 m for Global Agriculture Monitoring

Steffen Fritz, Fabian Löw, Gerard Hazeu, 2016, Data.

Vote Aggregation Techniques in the Geo-Wiki Crowdsourcing Game: A Case Study

Steffen Fritz, Linda M. See, Mikhail Yu. Khachay, 2016, AIST.

Comparison of global land cover products: community remote sensing to validate areas of high disagreement

Steffen Fritz, Ian McCallum, Florian Kraxner, 2010, 2010 IEEE International Geoscience and Remote Sensing Symposium.

An Exploration of Some Pitfalls of Thematic Map Assessment Using the New Map Tools Resource

Steffen Fritz, Ian McCallum, Linda M. See, 2018, Remote. Sens..

Supporting Earth-Observation Calibration and Validation: A new generation of tools for crowdsourcing and citizen science

Steffen Fritz, Linda See, Michael Rast, 2016, IEEE Geoscience and Remote Sensing Magazine.

Citizen science data in peer-reviewed publications: The Geo-Wiki experience

Steffen Fritz, D. Fraisl, 2018 .

Developing a community-based worldwide urban morphology and materials database (WUDAPT) using remote sensing and crowdsourcing for improved urban climate modelling

Steffen Fritz, Christoph Perger, Iain Stewart, 2015, 2015 Joint Urban Remote Sensing Event (JURSE).

Harmonizing and Combining Existing Land Cover/Land Use Datasets for Cropland Area Monitoring at the African Continental Scale

Steffen Fritz, Christelle Vancutsem, Linda M. See, 2012, Remote. Sens..

A Global cropland map: hybrid approach

Steffen Fritz, Linda See, Liangzhi You, 2016 .

Creating an open access cal/val repository via the LACO-Wiki online validation platform

Steffen Fritz, Christoph Perger, Linda See, 2017 .

Local Knowledge and Professional Background Have a Minimal Impact on Volunteer Citizen Science Performance in a Land-Cover Classification Task

Steffen Fritz, Tobias Sturn, Linda M. See, 2016, Remote. Sens..

Mapping Priorities to Focus Cropland Mapping Activities: Fitness Assessment of Existing Global, Regional and National Cropland Maps

Steffen Fritz, Antonio Di Gregorio, Pierre Defourny, 2015, Remote. Sens..

Integrated Participatory and Collaborative Risk Mapping for Enhancing Disaster Resilience

Wei Liu, Steffen Fritz, Ian McCallum, 2018, ISPRS Int. J. Geo Inf..

Investigating the Feasibility of Geo-Tagged Photographs as Sources of Land Cover Input Data

Steffen Fritz, Giles M. Foody, Marco Minghini, 2016, ISPRS Int. J. Geo Inf..

Picture Pile: A citizen-powered tool for rapid post-disaster damage assessments

Steffen Fritz, Linda See, Tobias Sturn, 2017 .

Towards an Integrated Global Land Cover Monitoring and Mapping System

Steffen Fritz, Nandin-Erdene Tsendbazar, Martin Herold, 2016, Remote. Sens..

The Impact of the Contribution Micro-environment on Data Quality: The Case of OSM

Steffen Fritz, Giles M. Foody, Linda See, 2017 .

Validation of Automatically Generated Global and Regional Cropland Data Sets: The Case of Tanzania

Steffen Fritz, Christoph Perger, Linda M. See, 2017, Remote. Sens..

Cropland Capture - A Game for Improving Global Cropland Maps

Michael Wimmer, Steffen Fritz, Tobias Sturn, 2015, FDG.

Crowdsourcing In-Situ Data on Land Cover and Land Use Using Gamification and Mobile Technology

Steffen Fritz, Ian McCallum, Christoph Perger, 2016, Remote. Sens..

Identifying and quantifying uncertainty and spatial disagreement in the comparison of Global Land Cover for different applications

Steffen Fritz, Steffen Fritz, Linda See, 2008 .

Developing food, water and energy nexus workflows

Steffen Fritz, Ian McCallum, Joan Masó-Pau, 2019, Int. J. Digit. Earth.

LACO-Wiki: A land cover validation tool and a new, innovative teaching resource for remote sensing and the geosciences

Steffen Fritz, Christoph Perger, Linda See, 2016 .

Comparison of Data Fusion Methods Using Crowdsourced Data in Creating a Hybrid Forest Cover Map

Steffen Fritz, Alexis J. Comber, Linda M. See, 2016, Remote. Sens..

Increasing the Accuracy of Crowdsourced Information on Land Cover via a Voting Procedure Weighted by Information Inferred from the Contributed Data

Steffen Fritz, Christian Schill, Christoph Perger, 2018, ISPRS Int. J. Geo Inf..

Improved Vote Aggregation Techniques for the Geo-Wiki Cropland Capture Crowdsourcing Game

Steffen Fritz, Linda See, Michael Khachay, 2016 .

The Potential of Crowdsourcing for the Renewable Energy Sector

Steffen Fritz, Ian McCallum, Christian Schill, 2015 .

Using Remote Sensing and Geospatial Information for Sustainable Development

Steffen Fritz, Linda See, I. Moorthy, 2018 .

LACO-WIKI: an open access online portal for land cover validation

Steffen Fritz, Christoph Perger, Linda See, 2015 .

LACO-Wiki Mobile: An Open Source Application for In situ Data Collection and Land Cover Validation

Steffen Fritz, Christoph Perger, Linda See, 2019 .

Spatial Accuracy Assessment and Integration of Global Land Cover Datasets

Steffen Fritz, Nandin-Erdene Tsendbazar, Martin Herold, 2015, Remote. Sens..

Different methods, different wilds: Evaluating alternative mappings of wildness using fuzzy MCE and Dempster-Shafer MCE

Steffen Fritz, Peter F. Fisher, Alexis J. Comber, 2010, Comput. Environ. Urban Syst..

Assessing quality of volunteer crowdsourcing contributions: lessons from the Cropland Capture game

Steffen Fritz, Christoph Perger, Tobias Sturn, 2016, Int. J. Digit. Earth.

A Meta-Analysis on the Return on Investment of Geospatial Data and Systems: A Multi-Country Perspective

Steffen Fritz, Ian McCallum, Christian Schill, 2015, Trans. GIS.

Crowdsourcing, Citizen Science or Volunteered Geographic Information? The Current State of Crowdsourced Geographic Information

Bin Jiang, Steffen Fritz, Lucy Bastin, 2016, ISPRS Int. J. Geo Inf..

Cropland Capture: an effective game for collecting VGI

Michael Wimmer, Steffen Fritz, Ian McCallum, 2014 .

The Next Generation Citizen Observatories

Drew Hemment, Steffen Fritz, I. Moorthy, 2016 .

The Role of Citizen Science in Earth Observation

Steffen Fritz, Cidália Costa Fonte, Linda M. See, 2017, Remote. Sens..

Global Earth Observation System of Systems (GEOSS)

Steffen Fritz, S. Fritz, 2014, Encyclopedia of Remote Sensing.

Contributing to WUDAPT: A Local Climate Zone Classification of Two Cities in Ukraine

Steffen Fritz, Olha Danylo, Benjamin Bechtel, 2016, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

European Landscape Dynamics: CORINE Land Cover Data, Jan Feranec, Tomas Soukup, Gerard Hazeu, Gabriel Jaffrain. CRC Press, Boca Raton (2016)

Steffen Fritz, 2017, Int. J. Appl. Earth Obs. Geoinformation.

How to Increase the Accuracy of Crowdsourcing Campaigns

Steffen Fritz, Linda See, Michael Khachay, 2015 .

The Cropland Capture Game: Good Annotators Versus Vote Aggregation Methods

Steffen Fritz, Linda M. See, Mikhail Yu. Khachay, 2016, ICCSAMA.

Towards operational validation of annual global land cover maps

S. de Bruin, Steffen Fritz, Nandin-Erdene Tsendbazar, 2021, Remote Sensing of Environment.

Crowdsourcing In-Situ Data Collection Using Gamification

Steffen Fritz, Ian McCallum, Tobias Sturn, 2021, 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS.

Reducing vulnerability to hydro-meteorological extremes in Africa. A qualitative assessment of national climate disaster management policies: Accounting for heterogeneity ☆

Steffen Fritz, Anthony Patt, Arame Tall, 2013 .

A campaign to collect volunteered geographic information and land cover and human impact

Steffen Fritz, Ian McCallum, Christian Schill, 2012 .

Mapping Human Impact Using Crowdsourcing

Steffen Fritz, Ian McCallum, Christian Schill, 2016 .

The Value of Determining Global Land Cover for Assessing Climate Change Mitigation Options

Steffen Fritz, Ian McCallum, Michael Obersteiner, 2012 .

A global snapshot of the spatial and temporal distribution of very high resolution satellite imagery in Google Earth and Bing Maps as of 11th of January, 2017

Steffen Fritz, Ian McCallum, Linda See, 2018 .

A global dataset of crowdsourced land cover and land use reference data

Steffen Fritz, Ian McCallum, Christian Schill, 2016, Scientific Data.

A dataset of forest biomass structure for Eurasia

Steffen Fritz, Ian McCallum, Florian Kraxner, 2017, Scientific Data.

Land management: data availability and process understanding for global change studies

Steffen Fritz, Ian McCallum, Helmut Haberl, 2016, Global change biology.

Cropland Capture: A gaming approach to improve global land cover

Steffen Fritz, Ian McCallum, Christoph Perger, 2014 .

Building a hybrid land cover map with crowdsourcing and geographically weighted regression

Steffen Fritz, Ian McCallum, Christian Schill, 2015 .

A new hybrid land cover dataset for Russia: a methodology for integrating statistics, remote sensing and in situ information

Steffen Fritz, Ian McCallum, Florian Kraxner, 2011 .

Estimating the global distribution of field size using crowdsourcing

Steffen Fritz, Ian McCallum, Linda See, 2018, Global change biology.

Land Use/Land Cover Classification Systems and Their Relationship to Land Planning

Steffen Fritz, Krzysztof Janowicz, Ola Ahlqvist, 2018, Land Use and Land Cover Semantics.

Mapping citizen science contributions to the UN sustainable development goals

Jaume Piera, Steffen Fritz, Linda See, 2020, Sustainability Science.

Evaluation of ESA CCI prototype land cover map at 20m

Steffen Fritz, Ian McCallum, Nandin-Erdene Tsendbazar, 2017 .

Affordable Nutrient Solutions for Improved Food Security as Evidenced by Crop Trials

Steffen Fritz, Michael Obersteiner, Linda See, 2013, PloS one.

Soil Atlas of Europe

Steffen Fritz, Selim Kapur, Erhan Akça, 2005 .

Assessing the land resource–food price nexus of the Sustainable Development Goals

Steffen Fritz, Florian Kraxner, Michael Obersteiner, 2016, Science Advances.

Improved light and temperature responses for light-use-efficiency-based GPP models

Steffen Fritz, Ian McCallum, Elena Moltchanova, 2013 .

Motivating and Sustaining Participation in VGI

Steffen Fritz, Maria Antonia Brovelli, Linda See, 2017 .

Comparing different land cover data sets for agricultural monitoring in Africa

Steffen Fritz, Linda See, Felix Rembold, 2008 .

A New Generation of Tools for Crowdsourcing and Citizen Science to Support Earth Observation Calibration and Validation

Yves-Louis Desnos, Steffen Fritz, Linda See, 2022 .

Land Use and Land Cover Semantics: Principles, Best Practices, and Prospects

Steffen Fritz, Krzysztof Janowicz, Ola Ahlqvist, 2015 .

Improved global cropland data as an essential ingredient for food security

Steffen Fritz, Ian McCallum, Florian Kraxner, 2015 .

A new Global Agro-Environmental Stratification (GAES)

Steffen Fritz, Henk Kramer, Gerard Hazeu, 2016 .

Harmonisation, mosaicing and production of the Global Land Cover 2000 database (Beta Version)

Steffen Fritz, Shefali Agrawal, Pierre Defourny, 2003 .

Building a consolidated community global cropland map

Steffen Fritz, Olivier Leo, Linda See, 2012 .

On fair, effective and efficient REDD mechanism design

Mykola Gusti, Steffen Fritz, Ian McCallum, 2009, Carbon balance and management.

Enhancing the role of citizen sensors in mapping: COST action TD1202

Glen Hart, Steffen Fritz, Giles M. Foody, 2014, GIScience 2014.

Highlighting continued uncertainty in global land cover maps for the user community

Steffen Fritz, Ian McCallum, Christian Schill, 2011 .

Citizen science and the United Nations Sustainable Development Goals

Steffen Fritz, Ian McCallum, Michael Obersteiner, 2019, Nature Sustainability.

A global reference database of crowdsourced cropland data collected using the Geo-Wiki platform

Steffen Fritz, Ian McCallum, Christoph Perger, 2017, Scientific Data.

Wilderness Attribute Mapping in the United Kingdom

Steffen Fritz, Steve Carver, S. Fritz, 2002 .

Towards pathways bending the curve terrestrial biodiversity trends within the 21st century

Steffen Fritz, Michael Obersteiner, Tomoko Hasegawa, 2018 .

Using Crowdsourcing to Examine Land Acquisitions in Ethiopia

Steffen Fritz, Ian McCallum, Christian Schill, 2013 .

Landspotting: Social gaming to collect vast amounts of data for satellite validation

Steffen Fritz, Ian McCallum, Christoph Perger, 2012 .

A platform to visualize, analyze and improve Biomass datasets: http://biomass.geo-wiki.org

Steffen Fritz, Ian McCallum, Christian Schill, 2012 .

Impacts of incentives to reduce emissions from deforestation on global species extinctions

Mykola Gusti, Steffen Fritz, Michael Obersteiner, 2012 .

EuroGEOSS: An interdisciplinary approach to research and applications for forestry, biodiversity and drought

Grégoire Dubois, Steffen Fritz, Stefano Nativi, 2011 .

Downgrading recent estimates of land available for biofuel production.

Steffen Fritz, Ian McCallum, Christian Schill, 2013, Environmental science & technology.

The Need for Improved Maps of Global Cropland

Steffen Fritz, Ian McCallum, Michael Obersteiner, 2013 .

Cropland for sub‐Saharan Africa: A synergistic approach using five land cover data sets

Steffen Fritz, Ian McCallum, Christian Schill, 2011 .

Global hybrid forest mask: Synergy of remote sensing, crowd sourcing and statistics

Steffen Fritz, Ian McCallum, Christoph Perger, 2013 .

A Global Forest Growing Stock, Biomass and Carbon Map Based on FAO Statistics

Steffen Fritz, Ian McCallum, Michael Obersteiner, 2008 .

Generating crop calendars with Web search data

Steffen Fritz, Michael Obersteiner, Linda See, 2012 .

A spatially explicit assessment of current and future hotspots of hunger in Sub-Saharan Africa in the context of global change

Steffen Fritz, Michael Obersteiner, Liangzhi You, 2008 .

Benefits and challenges of voluntary contribution to GEOSS

Steffen Fritz, Michael Obersteiner, Jay Pearlman, 2012 .

Mapping and the Citizen Sensor

Steffen Fritz, Giles M. Foody, Linda See, 2017 .

Web 2 Tools to Improve Global Land Cover: Linking the EuroGEOSS Broker and Geo-Wiki

Steffen Fritz, Ian McCallum, Christian Schill, 2012 .

Author Correction: Citizen science and the United Nations Sustainable Development Goals

Steffen Fritz, Ian McCallum, Michael Obersteiner, 2019, Nature Sustainability.

Generating WUDAPT’s Specific Scale-dependent Urban Modeling and Activity Parameters: Collectionof Level 1 and Level 2 Data

Steffen Fritz, Christoph Perger, Linda See, 2015 .

Spatial distribution of arable and abandoned land across former Soviet Union countries

Steffen Fritz, Florian Kraxner, Linda See, 2018, Scientific Data.

Banda Aceh-The Value of Earth Observation Data in Disaster Recovery and Reconstruction: A Case Study

Steffen Fritz, Ian McCallum, Florian Kraxner, 2008 .

The European Forest and Agricultural Sector Optimization Model - EUFASOM

Steffen Fritz, Florian Kraxner, Michael Obersteiner, 2008 .

A vegetation map of South America

Steffen Fritz, Frédéric Achard, Andrea Baraldi, 2002 .

A land‐cover map for South and Southeast Asia derived from SPOT‐VEGETATION data

Steffen Fritz, René Beuchle, Shefali Agrawal, 2007 .

FotoQuest Go: A Citizen Science Approach to the Collection of In-Situ Land Cover and Land Use Data for Calibration and Validation

Steffen Fritz, Linda See, Tobias Sturn, 2019 .

Copernicus Global Land Service: Land Cover 100m: version 3 Globe 2015-2019: Validation Report

Steffen Fritz, Nandin-Erdene Tsendbazar, Martin Herold, 2020 .

Mapping global cropland and field size

Rick Mueller, Steffen Fritz, Ian McCallum, 2015, Global change biology.

Development of a global hybrid forest mask through the synergy of remote sensing, crowdsourcing and FAO statistics

Steffen Fritz, Ian McCallum, Christoph Perger, 2015 .