In the early 52°North days, we managed our source code on a public open source platform: SourceForge. We started with CVS (classic!), switched to SVN (wow, I can delete folders!) and after a while we decided to host all 52°North related source code in our own IT environment. However, keeping an eye on what was going in the VCS world, we felt that this approach was outdated and started to look into Git and GitHub. This initiative was mainly driven by 52°North staff developers’ curiosity and the promise of a better development work flow. We found GitHub provided very easy collaboration, communication and outreach dedicated to source code and very much in line with the 52°North philosophy. After a few test runs, we started to migrate the first of our active software projects to GitHub.
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Open Sensor Search
This week, we will have one blog post by each of this year’s Google Summer of Code students presenting their project and themselves. After Khalid, Patrick and Jinlong it is now Mohammad’s turn!
The sensor web is a broad concept about making sensor data available online. There is no such thing as “the” sensor web, but several systems for different purposes. This makes it really hard to discover sensors and their data. Therefore, I will implement the Open Sensor Search (OSS) idea for the Google Summer of Code 2013 (see wiki page). Based on the exisitng Sensor Instance Registry (SIR), we will work on a system using a fast and probably distributed search engine. more >
Trajectory Analysis in R
This week, we will have one blog post by each of this year’s Google Summer of Code students presenting their project and themselves. Jinlong follows Kahlid and Patrick.
Trajectory analysis has a wide range of applications in various fields such as geoscience and social science. Use cases span across mobile phone users (see image below) e.g. for commuting analysis, ship and flight paths or animal tracking. With the avalanche of GPS-annotated data in the past few years capturing such data became much easier, so today there is a need for tools that are specifically tailored for analyzing large-scale trajectory data (example).
R, as a software environment for statistical computing and graphics, has been favored by researchers from various disciplines for its free access, rich statistical methods, and easy-to-share features. However, the classes and methods specifically developed for trajectory analysis are limited and domain-orientated in R. This project intends to address this issue by implementing and improving generic classes and methods for trajectory analysis.more >
Seismic Modeling using SOS and SWE
This week, we will have one blog post by each of this year’s Google Summer of Code students presenting their project and themselves. After Khalid posted his blog, it is now Patrick’s turn!
This is the first blog post for the Google Summer of Code 2013 project being organized by 52°North and me with the goal of adding support for seismic data in the existing applications Sensor Observation Service (SOS) and Sensor Web (SWE). These applications currently function in unison to provide a user with sensor data; to display both the sensor location on a map, as well as the corresponding graphical information the user asks for. The data formats that are supported right now are based on climate and hydrology sensing and the applications have so far existed for the purpose of analyzing this sort of observation information. This project’s outcome more >
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