GLEAMviz simulator version 7 is out!

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A new version of the GLEAMviz simulator has been released today: version 7.0 features a major rewriting of all the data handling components, together with some additional functionalities.

The output format for the results generated by the computational engine and managed by the client has been changed to a standard format, the Hierarchical Data Format version 5 (HDF5), developed by the NCSA; this change brings various advantages, in terms of scalability and extension of the output data, performances, and usability. Along with this modification we performed a significant architectural refactoring of all the data manager modules, adjourning the data retrieval process (which is now much faster) and setting the basis for future improvements and extensions in handling the simulations’ output.

The new software application is not compatible with the old custom data format, so we developed a simple conversion tool to allow users adjourn their existing simulations to the new format, and then open them in the Client version 7 for visualizing and analyzing. The conversion tool is distributed together with the GLEAMviz client and is called GLEAMconverter; its usage is straightforward: you just need to select one or more simulations (up to version 6.9) and an output directory.

The Visualization Dashboard with the X3D Globe widget.

The newly released Client also introduces a new visualization widget, the X3D Globe, which shows the incidence (new transitions) at the country level by means of 3D choropleth shapes on the Earth globe; the coloring range and other visualization options can be specified by the user.

Finally, version 7.0 also includes various improvements and bug-fixes both client-side and server-side: we do our best to continuously upgrade the GLEAMVIZ simulator!

New GLEAMviz release!

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We are happy to announce an updated release of our GLEAMviz simulator: version 6.9 is out!
We have been squashing a few little bugs on the client side, added some information about simulations’ execution, and improved the numerical integration of the epidemic dynamic performed by the server.

Updated release of the GLEAMviz simulator!

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Dear users, we are glad to announce a new release of our simulator client: version 6.8 includes some important refactoring of the visualization components and bug-fixes, together with a few new powerful features for analyzing the simulations’ output results.
The updated map widget allows to select an arbitrary region by pressing the Ctrl/Command key and while holding it down clicking and dragging with the mouse. This results in opening an Analyzer widget showing the epidemic curves for the selected area. Another very useful feature is the possibility to click on a data series within an Analyzer and drag it to another Analyzer widget, dropping it there making easy to perform an immediate comparison with other ones.

The new version features an enhanced interaction between Map and Analyzer widgets.

Other minor improvements have been introduced in terms of usability, and in handling the remote simulations.

Version 6.7 of the GLEAMviz client has been released

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We’ve just released a new version of the GLEAMviz simulator client, which features various improvements of the Visualization widgets and some under-the-hood refactoring aimed at providing better stability.
The new Visualization Dashboard allows users to explore the disease data aggregating the simulation’s output on a weekly basis, making it easier to compare them with official surveillance data. The background maps used for geographical visualizations have been uniformed throughout the widgets, and provide a higher resolution.

Invasion Tree animation visualization

Example of the Invasion Tree widget animation visualization when selecting a single city.

The Invasion Tree visualization widget has been extended by showing an animation of the invasion patterns from one city to another, or from one country to another, so to make it easier to perceive both the global flows and the local invasion dynamics.

GLEAMviz 6.6 minor update

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Our team has just released a minor update for the GLEAMviz client version 6.6, aimed at improving the user experience. The new version features a better rescaling of the analyzer plots and the possibility to select the seeding cities by searching for their countries; it also fixes some visualization issues in the invasion tree widget.
Stay tuned for further developments!

GLEAMviz 6.6 version: new ways to play with epidemic data

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We are proud to announce the release of the 6.6 version of GLEAMviz. This version is taking advantage of the new dashboard introduced in the last update of the software and introduces several new tools for data analysis and visualization.

Dashboard Visualization: Invasion tree widget

Dashboard Visualization: Invasion tree widget

  • Invasion Tree: we provide a new visualization tool that for each stochastic realization of an epidemic shows the entire sequence characterizing the spreading of the modeled diseases from one area of the world to another. In the case of multiple realization the most likely invasion tree is visualized.
  • Treemap: GLEAMviz allows now the possibility of creating a hierarchical (tree-structured) representation of the attack rate of the epidemic in different geographical locations as a set of nested rectangles.
  • Analyzer: this tool allows the plot of multiple epidemic curves from different regions of the world. The new functionalities include the possibility of plotting different class of individuals and use simultaneously different geographical scales.

Dashboard Visualization: Treemap widget

Dashboard Visualization: Treemap widget

This release also improves performance and squashes a few bugs. The GLEAMviz team is now busy in implementing new functionalities and visualization capabilities, as well as bringing new features to the modeling engine.

The new version of the software is available here, or, if you already have version 6 installed, you can use the builtin autoupdate of the GLEAMviz client to download the new version (go to “Preferences > Check for updates” if you want to manually trigger the auto-updater).

Dashboard Visualization: Analyzer charts widget

Dashboard Visualization: Analyzer charts widget

GLEAMviz version 6.5 is out: announcing the Visualisation Dashboard

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We are glad to announce the release of the  version 6.5 of the GLEAMviz simulator. The new update includes a complete redesign of the visualization tools, meant to enhance the software capabilities in exploring and analyzing the output data. The former visualisation components (Map, SpaTo, Globe, Charts) are now arranged together as dockable widgets in a dashboard window.

GLEAMviz Dashboard Visualisation Window

GLEAMviz Dashboard Visualisation Window (new from version 6.5)

Widgets can be moved around and placed one next to each other in a flexible way, or can be kept separate as floating windows. This approach opens the way for the integration of new visualization components and analytical tools, to improve and extend the current data exploration capabilities of the software. Furthermore, the integration of long-range mobility data has been optimized in order to better reflect the seasonal aspects of airline traffic patterns.

The new version of the software is available here, or, if you already have version 6 installed, you can use the builtin autoupdate  of the GLEAMviz client to download the new version (go to “Preferences > Check for updates” if you want to manually trigger the auto-updater).

Minor update

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Hi folks, we’ve just released a minor update to our client version 6.0 with a couple of fixes.
If you’re running the Windows OS you might experience some issues with the automatic updater mechanism; if that’s your case you shall download again the client from the GLEAMviz website ( and replace the previous installation.
Thanks for your interest and support to the GLEAMviz project!

GLEAMviz v6.0 is now available

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The version 6.0  of the GLEAMviz Simulator has been released on April 23. The version 6.0 features major improvements in the model data structure and a full update of the population and mobility databases. The long-range human mobility is now simulated using records concerning actual flight bookings, providing an improved description of the origin-destination traffic flows among the different geographical areas considered in the model. The new version of GLEAMViz also integrates monthly variations in the traffic flows.
The GLEAMviz Simulator client version 6.0 can be downloaded here.

World pandemic map

The database update and the other improvements to the new GLEAMviz 6.0 version represent a  big leap forward in the model database structure and hence in the Simulator’s engine. For this reason simulations run with former versions of GLEAMviz cannot be visualized using the new client. These simulations can be explored and visualized by using the client version 5.1, that is still supported and can be used to perform simulations on the previous version of our public server.[*]

The new release of GLEAMviz v6.0 prepares the ground for major redesign of the client dashboard to accommodate new data analysis tools and capabilities that will be released in the next few months. Stay Tuned!

[*] Please note that the obsolete 4.X versions of the Simulator are no longer supported by our team and the public server version 4 has been dismissed.


New GLEAMviz update: identifying disease carriers.

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We have just released the v5.1 version of GLEAMviz. This release is the first after the major rewriting of the v5.0 and along with stability fixes it includes a few major improvements in the model specifications and the computational framework.

Model builder compartments with carrier/clinical case icon.

The compartments used in the disease model can be marked as “carrier” as well as “clinical cases”.

In particular the model builder requires marking all those compartments corresponding to individuals carrying the pathogenic agent (carriers). This includes also exposed individuals in the latent/incubation period. This feature let the computational platform to track potential carriers as well as symptomatic and clinical cases, making it possible to track more accurately the international spread of the disease.

The corresponding change in the simulation engine is also required to allow forthcoming additional features such as the possibility of constructing infection trees and improving the performance of the computational platform.

This revision includes also some bug fixes and usability improvements (handling of iconified windows, charts rescaling, etc.).

[Note for Windows users: due to a misconfiguration of the v5.0 auto-updater some Windows clients are unable to download the v5.1 installer file; if this is your case please run the autoupdate program as system administrator or download the new client directly from here]