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08:07 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2015
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GEO4ALL: Open Education Using FOSS4

  • Published: 2015
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
51:51 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016
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OSGeo AGM

After 5 years in production the open source based Pavement Management System for Ireland has amassed over 15 years of road-related data. The back-end mapping engine is powered by MapServer and we are looking to improve performance when dealing with more and more data. The talk will focus on how to set up Locust, an open source Python load testing tool, to automatically get average load times for each WMS and WFS layer from MapServer, and how many users MapServer can handle concurrently. A small open source project is currently being written to help this process. Whilst MapServer is the focus of the talk, any OGC-compliant server can be tested in the same way. The talk will then briefly run through a series of experiments to see how changing various components affects performance. These are: Running MapServer on Linux as compared to Windows Using the MapServer native SQL Server driver, and using the OGR driver Map file size Venkatesh Raghavan (Osaka City University)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:07 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016
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Sol Katz Award 2016 & Students Award

Venkatesh Raghavan (Osaka City University & OSGeo President)
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
1:01:36 Institut des Hautes Études Scientifiques (IHÉS) English 2014
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3/4 Analytic number theory around torsion homology

  • Published: 2014
  • Publisher: Institut des Hautes Études Scientifiques (IHÉS)
  • Language: English
24:15 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016
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MapMint 2.0: a new version of the 100% service-oriented GIS platform

MapMint is an comprehensive manager for publishing webmapping applications. It is a robust open source geospatial platform allowing the user to organize, edit, process and publish spatial data to the Internet. MapMint includes a complete administration tool for MapServer and a simple user interfaces to create mapfiles visually. Its use does not require any coding and most of the mapfile parameters are supported, so the user can fully focus on the map features and not on its source code. The latter is generated using various WPS requests which are using the user’s data and settings as input. MapMint is based on the extensive use of OGC standards and automates WMS, WFS, WMT-S and WPS. Most of the MapMint core functions are run through WPS requests which are calling general or geospatial web services (vector and raster operations, mapfiles creation, spatial analysis, queries and much more). MapMint server-side is built on top of ZOO-Project, MapServer and GDAL and its numerous WPS services are mainly written in Python and JavaScript. MapMint client-side is based on OpenLayers, Jquery, ZOO-Client and Bootstrap and provides user-friendly interfaces to create, publish and view maps. MapMint architecture and main features will be introduced in this presentation, and its modules (dashboard, data, maps and apps) will be described with an emphasis on the OGC standards and OSGeo software they are using. Some short case studies and examples will finally illustrate some of the the key functionalities.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
27:18 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2016
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ZOO-Project 1.6.0: News about the Open WPS Platform

ZOO-Project is an Open Source Implementation of the OGC Web Processing Service (WPS), it was released under a MIT/X-11 style license and is currently in incubation at OSGeo. It provides a WPS compliant developer-friendly framework to easily create and chain WPS Web services. This talk give a brief overview of the platform and summarize new capabilities and enhancement available in the 1.6.0 release. A brief introduction to WPS and a summary of the Open Source project history with its direct link with FOSS4G will be presented. Then an overview of the ZOO-Project will serve to introduce new functionalities and concepts available in the 1.6.0 release and highlight their interrests for applications developpers and users. Various use of OSGeo softwares, such as GDAL, GEOS, PostGIS, pgRouting, GRASS, OTB, SAGA, as WPS services through the ZOO-Project will be presented. The ZOO-Client, will be presented to show how it can be easily used to create automatically dynamic HTML forms to interact with WPS services. The ongoing developments and future innovations will be then presented.
  • Published: 2016
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
24:22 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2015
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Evaluating Flood Hazard Potential in Danang City, Vietnam Using FOSS4G

This study aims to build flood hazard map for a lowland area in Danang city, Vietnam based on topographical data, land-cover and flood inundation map. ALOS PALSAR imageries with respect to the time before and during flood event in 2007 were used to characterize flood inundation. In addition, topographical data was developed via 5m resolution DEM generated by a bi-cubic spline algorithm that implemented in BS-Horizon program (Nonogaki et al., 2012). This high resolution DEM was used to enhance the accuracy of flood map as well as determine the geomorphological features of the study area and the relations on flood hazards. Land-cover map in 2007 extracted from Landsat TM data was also applied for the landform classification process. The flood hazard map was generated based on the probability of submergence of each landform unit. The changes in land-cover as well as topography have significant effect on flood hazard. In this study, optical Rapid Eye remote sensed data in 2014 was used to extract land-cover by the time and the land-cover change from 2007 to 2014. The estimated landform and potential flood hazard map in 2014 was built based on the updated land-cover. The result was compared with field survey flood pillar data, flood map in the past, land-cover change and flood scenario given by Danang City government to assess the accuracy. This research has also proposed some flood prevention plans for this alluvial lowland area. Landforms units derived rule-based classification of land cover map, 5m resolution DEM data and flood inundation map not only facilitates the understanding of the nature of flood but also in flood risk zoning. The methodology developed in this study would be useful in low relief areas in Vietnam and other parts of the world.
  • Published: 2015
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
1:01:45 Institut des Hautes Études Scientifiques (IHÉS) English 2014
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4/4 Analytic number theory around torsion homology

  • Published: 2014
  • Publisher: Institut des Hautes Études Scientifiques (IHÉS)
  • Language: English
58:57 Institut des Hautes Études Scientifiques (IHÉS) English 2014
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2/4 Analytic number theory around torsion homology

  • Published: 2014
  • Publisher: Institut des Hautes Études Scientifiques (IHÉS)
  • Language: English
1:03:37 Institut des Hautes Études Scientifiques (IHÉS) English 2014
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1/4 Analytic number theory around torsion homology

  • Published: 2014
  • Publisher: Institut des Hautes Études Scientifiques (IHÉS)
  • Language: English
22:23 FOSS4G, Open Source Geospatial Foundation (OSGeo) English 2015
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Use case of Disaster Management System by using Geopaparazzi and MapGuide Open Source

In recent years, large-scale disasters have occurred in the countries of Asia including Japan, rapid collection and sharing of disaster information is required in order to provide relief and support speedy restoration of civic services. This presentation discusses the integration and customization of FOSS4G field survey tools and Web GIS server to facilitate aggregation and rapid sharing of disaster related field information. Further, the system also provide realtime interaction between field party and coordination team. A case study of practical use of the system at the Osaka Water General Service (OWGS) Corporation will be demonstrated to present the salient features of the system. The main capability of the system usability is normal as well as disaster situation will be highlighted.
  • Published: 2015
  • Publisher: FOSS4G, Open Source Geospatial Foundation (OSGeo)
  • Language: English
1:02:07 Institut des Hautes Études Scientifiques (IHÉS) English 2014
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3/4 Trace functions over finite fields

  • Published: 2014
  • Publisher: Institut des Hautes Études Scientifiques (IHÉS)
  • Language: English
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