Seminar: Work with geodata in MongoDb

On 21 January a seminar “Work with geodata in MongoDb” was held.

The report has illustrated the interfaces of NoSQL database MongoDb to handle location data in two-dimensional spacePractical examples (from the development of Geo2Tag project) shows how to solve the problems of storing and analyzing spatial data.

In scope of the report the following topics were covered:

  • a short introduction to Mongo
  • GeoJSON format
  • types of spatial indices and geometries supported by MongoDb
  • operations of geodata filtering as part of operation find
  • searching and filtering geodata at the stage of aggregation of data
  • searching and filtering geodata using the haystack indexes.

The report is addressed to developers, analysts, data scientists, researchers and anyone interested in issues of automatic or automated processing of location data in two-dimensional space.

The examples required the installed version of MongoDb 3.0 or later.

Speaker: Mark Zaslavskiy, postgraduate student at NRU ITMO, an active member of the Open Source and Linux Laboratory, one of the authors and developers of Geo2Tag project.

Here you can see a slide deck from the seminar: http://www.slideshare.net/osll/mongodb-57412617

 

Here you can see the video of the report (russian): 

 

Here is the summary about the seminar: https://vk.com/osllru?w=wall-67948418_35

 

Here you can find the examples and presentation of the https://vk.com/osllru?w=wall-67948418_37

Link to the russian source: http://geo2tag.org/?page_id=1402&lang=ru_RU

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Seminar: Microservice architecture and virtualization using Docker, project of Geo2Tag virtualization

On 26 November a seminar “Microservice architecture and virtualization using Docker, project of Geo2Tag virtualization” was held.

The report has focused on the design and implementation of web applications to improve their scalability and stability.
The first part of the presentation has illustrated the main ideas micro services architecture, its positive and negative sides. In the second part of the report existing virtualization tools were described.
Also it has been shown how we can implement the separation of the application into separate services using Linux containers.
The third part of the presentation included a practical example of refactoring existing monolithic web applications Geo2Tag for microservices architecture.

Speaker: Vladislav Marin, Magister of SPbETU “LETI”, an active member of the Geo2Tag project.

Here you can see a slide deck from the seminar: http://www.slideshare.net/osll/microservice-architecture-for-geo2tag

 

Here you can see the video of the report (russian): https://www.youtube.com/watch?v=a_4rUaNIjFQ

Here is the summary about the seminar: https://vk.com/osllru?w=wall-67948418_27

Link to the russian source: http://geo2tag.org/?page_id=1374&lang=ru_RU

 

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