Time series analysis

May 4, 2011 at 4:56 AM

Dear Users and Developers,

I am wondering if there is best practice, how to use this tool for changing data in time?

Is there any initiate plan for this feature or roadmap in the SVN?

Thanks and best regards,

Peter

Coordinator
May 4, 2011 at 5:31 PM

Hello!

Thank you for the interest in NodeXL!

Time is of the essence for the NodeXL Team!

Today, NodeXL can be forced to do basic time related operations by adding time data to the edges and vertices worksheet and using Dynamic Filters to reveal and hide specific time slices in the network.  Few features explicitly make this easy right now.

You can group vertices by a time attribute and then get metrics calculated for each group/time slice.

We do not yet enable grouping of edges.

Some people (with great patience) have created impressive results with some effort.  An example is the recent work from Brian Keegan at Northwestern University, mapping the changing network forming around Wikipedia pages associated with the Sendai earthquake, tsunami, and nuclear crises.

100 Hours of Wikipedia activity for Sendai earthquake from Brian Keegan on Vimeo.

Soon, we plan to improve time support in NodeXL.  We will make Brian's work much easier by allowing users to specify a start and end time, a time window, and an increment.  NodeXL will then automate slicing through each filter setting and perform an operation after each slice, like generating an image file of the contents of the network visualization pane or calculating metrics on just what is visible in that time slice.

Regards,

Marc

May 4, 2011 at 7:56 PM
Marc,

The time features you describe will be an awesome and very useful addition
to NodeXL! Brian's graphs are pretty awesome, too.

Peter

On Wed, May 4, 2011 1:31 pm, marcsmith wrote:
> From: marcsmith
>
>
> Hello!Thank you for the interest in NodeXL!Time is of the essence for the
> NodeXL Team!Today, NodeXL can be forced to do basic time related
> operations by adding time data to the edges and vertices worksheet and
> using Dynamic Filters to reveal and hide specific time slices in the
> network. Few features explicitly make this easy right now.You can group
> vertices by a time attribute and then get metrics calculated for each
> group/time slice.We do not yet enable grouping of edges.Some people (with
> great patience) have created impressive results with some effort. An
> example is the recent work from Brian Keegan at Northwestern University,
> mapping the changing network forming around Wikipedia pages associated
> with the Sendai earthquake, tsunami, and nuclear crises.100 Hours of
> Wikipedia activity for Sendai earthquake from Brian Keegan on Vimeo.Soon,
> we plan to improve time support in NodeXL. We will make Brian's work
> much easier by allowing users to specify a start and end time, a time
> window, and an increment. NodeXL will then automate slicing through each
> filter setting and perform an operation after each slice, like generating
> an image file of the contents of the network visualization pane or
> calculating metrics on just what is visible in that time
> slice.Regards,Marc
>
>
May 4, 2011 at 8:59 PM

Hi Mark,

Thanks for your answer. It would be very a useful feature if you could adjust the weights, colours, sizes and other attributes at a time.

It would be a very-very awesome feature if could have such capability I saw in this video:

http://www.ted.com/talks/lang/eng/nicholas_christakis_the_hidden_influence_of_social_networks.html

I would be grateful if I can take a part somehow or just have the news on development.

Thank you again!

Br,

Peter