Christoph Perger

发表

Towards a geospatial Wikipedia (Abstract)

Steffen Fritz, Ian McCallum, Christian Schill, 2009 .

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.

Mapping Cropland in Ethiopia Using Crowdsourcing

Steffen Fritz, Ian McCallum, Christoph Perger, 2013 .

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 .

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

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

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 .

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

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

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..

Crowd-Driven and Automated Mapping of Field Boundaries in Highly Fragmented Agricultural Landscapes of Ethiopia with Very High Spatial Resolution Imagery

Christoph Perger, Michael Ying Yang, Divyani Kohli, 2019, Remote. Sens..

Citizen Scientists Monitoring the Environment: The Latest Apps from IIASA

Steffen Fritz, Ian McCallum, Christoph Perger, 2018 .

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

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

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).

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

Steffen Fritz, Christoph Perger, Linda See, 2017 .

Using control data to determine the reliability of volunteered geographic information about land cover

Christoph Perger, Giles M. Foody, Alexis J. Comber, 2013, Int. J. Appl. Earth Obs. Geoinformation.

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

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

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

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

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 .

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..

The Potential of Crowdsourcing for the Renewable Energy Sector

Steffen Fritz, Ian McCallum, Christian Schill, 2015 .

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 .

Land Information System Austria (LISA): Objektorientiertes Datenmodell zur Abbildung der Landbeckung und Landnutzung

Christoph Perger, Klaus Steinnocher, Johannes Scholz, 2010 .

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

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

Cropland Capture: an effective game for collecting VGI

Michael Wimmer, Steffen Fritz, Ian McCallum, 2014 .

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 .

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

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

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

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

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 .

Downgrading recent estimates of land available for biofuel production.

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

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 .

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

Steffen Fritz, Ian McCallum, Christian Schill, 2012 .

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 .

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 .