Archives

Adopting OGC Standards in a Flood Alert System

Friday, August 15, 2014 | by

This presentation is about the adoption of the OGC – Open Geospatial Consortium standards in Sao Paulo Flood Alert System which was based on matrix coordinates and static maps.

The Flood Alert System has more than 300 telemetric stations composed by rain gauges, water level sensors placed on rivers and reservoirs, . . .

Evaluation of Web Processing Service Frameworks

Friday, August 15, 2014 | by

In this presentation, I illustrate, and discuss initial results from a quantitative analysis of the performance of WPS servers. To do so, two test scenarios were used to measure response time, response size, throughput, and failure rate of five WPS servers including 52°North, Deegree, GeoServer, PyWPS, and Zoo. I also . . .

UrbanSim2: Simulating the Connected Metropolis

Friday, August 15, 2014 | by

UrbanSim is an open source software platform for agent-based geospatial simulation, focusing on the spatial dynamics of urban development.  Since its creation UrbanSim has been used in the official planning processes for at least a dozen regional governments which were used to help allocate billions of dollars in regional . . .

MapStory: The next plateau

Friday, August 15, 2014 | by

MapStory.org is a community-driven open educational resource that lets people share and peer review observations about how the world evolves over time and space. It’s built on an open source geospatial stack (PostGIS, GeoServer, OpenLayers, GeoNode) and aims to empower both authoritative and public participation in data collection, peer review, . . .

A FOSS4G-Based Geo Connection System for Education and Research

Friday, August 15, 2014 | by

The presentation will examine the selection, installation, and the current and planned use of a CentOS–based system running FOSS4G to support student education, research, and projects with state and local organizations. A system was designed to foster collaborative work between an educational institution and the community.
Specifically, it is being used . . .

A glimpse of FOSS4G in the environmental consulting arena

Friday, August 15, 2014 | by

In the highly competitive world of environmental consulting, being able to manage large volumes of data and deliver timely, accurate information based on that data is critical to our ongoing success. As a relatively small company, we recognized that we needed something unique to survive and prosper in an industry . . .

Small data vs Big Data. On geospatial Big Data considered harmful

Friday, August 15, 2014 | by

Big Data has become a hot topic in all contexts, and particularly in the geospatial world. Georeferenced data has grown exponentially in the last years, and large efforts are being done to extract the most out of the massive amount of geodata currently available.

This presentation discusses how Big Data might . . .

Open for Business Down Under

Friday, August 15, 2014 | by

The open source geospatial community tends to focus heavily on technical solutions, but how do we ensure that we are engaging customers on the benefits of open source solutions or that our customers even properly understand what open source means to their business?
Can we engage our customers to encourage their . . .

CS-Map – coordinate system libraries

Friday, August 15, 2014 | by

CS-Map is often used as a reference but has not been as widely adopted as proj4. This presentation describes how CS-Map has been used in a distributed geospatial database for big data.

The presentation describes the benefits of CS-Map, in particular its whole earth support and also it disadvantages, primarily it . . .

Implementing basic GeoCouch support in Couchbase Lite

Friday, August 15, 2014 | by

Couchbase Lite is an Apache-licensed native JSON database for iOS and Android with offline synchronization support.

At a hackathon last year it took a couple of hours to add GeoCouch-style bbox queries to Couchbase Lite. I’ll walk through the implementation of the geo indexer and how it fits into the Couchbase . . .