It could be useful to have a general view of the graph when zooming in

Disease, genes and drugs views are going to need an infrastructure and a GUI to search nodes by name

As an example, if you select Alzheimer's disease you will see Alzheimer's disease and all its comorbid diseases. Extract the subgroups of all the selected diseases (Alzheimer's disease and their comorbidity diseases) and show their interactions.

When the graph representation is saved, it is currently saving the viewport, and not the entire graph

When patients are shown , the ranked list of most similar diseases should be shown. That view will require to compute a new table, which will be provided by @jonsv89

It should be possible to search by genes and drugs, in the same way diseases are searched. It may require creating more than one destination view for the same search.

Patient subgroups interactions are interesting with this kind of search.

And if possible the interactions between them, as done with the disease and patient-subgroup network

Currently, it is not possible to go back to the previous view, so a history management infrastructure, and a GUI interface, are needed

Choose colours that can be differentiated easily, right now there are cases where blue and red arrows are hardly differentiated.
Choose different types of arrows (dashed, solid...) to make visually easy to detect the interactions that have been previously described by epidemiological networks.

In a tabular format

As there are going to be lots of new GUI elements, it should be possible to have a way to hide/show all of them.

Currently, when a graph view is saved as PNG, it uses the screen's DPI, so it is too fuzzy when it is zoomed with office tools. Add a fix for it

Once visualizing relative risk interactions between subgroups of patients, be able to show only the subgroups with at least "x" patients (in the manuscript we are selecting subgroups with at least 4 patients). Once done that, show only those subgroups where there is at least one gene up- and one gene down-regulated in all the patients composing the subgroup, showing only those interactions where at least a gene is involve, this is: in those positive relative risk interactions there should be at least one gene up- or down-regulated in all the patients from both subgroups, while in the case of negative relative risk interactions we are going to show only those interactions where a gene is up-regulated in all the patients from one subgroup and down-regulated in all the patients from the other subgroup, or vice versa. Do the same with drugs. Add the possibility to see the genes and drugs involved in the interactions. Of special interest for the interactions between subgroups from different diseases.

Since last time I was exploring cytoscape ecosystem a new plugin, which allows exporting the graph view to SVG, has arisen:

https://github.com/kinimesi/cytoscape-svg

Explore its features and usability

Add a button like the one "Hide intra-disease edges" to show/hide positive or negative relative risk interactions (both in the disease and patient-subgroup networks)

It would be really important that a legend indicating what people are looking at is displayed somewhere. I can imagine and assume what I'm looking at but users might miss the meaning of colors and/or shapes.

As there are now more than one view, a brief title describing what it is being viewed should be added to the interface

In the future we'll be able to do the same to show the drugs involved in the interactions :)

It would be good to have a visual mechanism for users move between different visualization e.g. from a specific-node view to the whole network

There is a jQuery library which allows submitting path change calls to Google Analytics

https://shamasis.net/projects/ga/

As path changes in Disease PERCEPTION are associated to searches and view changes, this library could help tracking most common kind of searches

Add a drop-down tab that allows the selection of the disease of interest

The database loader is assuming that the database is empty, so it tries creating the tables before loading the data. The transactional approach will not leave the service down meanwhile the database is being updated.

As @jonsv89 has stated in #7 , downloading the currently viewed subnetwork in tabular format should be possible, and it should have a GUI. Also, it should be possible to also save the graph itself in bitmap, vector or other graph formats