Graph visualization meet-up in Paris

Meetup on graph visualization: join us the 24/01 in Paris

Neo4j, the leading graph database software, will be organizing a meetup on the visualization of graphs. It’s free, if you want to come you just have to register here.

Graph databases are a new way to store and access data by representing it as nodes and connections. It is particularly useful for dealing with highly connected data as social networks, recommendation engines, music discovery or anti-fraud systems do. Graph databases give data scientists exciting opportunities.

You will learn how to combine Neo4j and Gephi using the Neo4j plugin of Gephi. You will also discover Linkurious, a novel web-based application to explore graph data easily, which has been co-founded by Sébastien Heymann.

The workshop will be held in English and French.

Register on meetup.com

Date: 24th of January, from 7:30 PM to 10:15 PM
Place: Zenika office, 10 rue de Milan, Paris

Gephi meet-up #4 in Berlin

user-group_smallInformation Epidemics with Gephi by Dmitry Paranyushkin / Nodus Labs

Large groups of people can drastically change their opinion, adopt a completely unexpected trend, come out to protest on a square, adopt a certain ideology, have an amazing time at a party, or start using a certain product on mass scale. While all these social phenomena are diverse, one thing in common is that they involve information dissemination that happens in a synchronized way, evoking a certain response from the population at once.

In this workshop I will demonstrate how epidemic theories from network science can be used to study information contagion and trend/rumor propagation (so-called information cascades). We will use real examples from Facebook and Twitter, as well as Gephi software to visualise the sample data.

You will learn what groups to target when planning effective marketing campaigns, how promote your news to the top of the feed on Facebook, generate and seed trends in social networks. You will also find out how information becomes viral and what one can do in order to increase the message’s contagious potential.

The workshop will be held in English and German.

To sign up: workshopinformationepidemics-eorg.eventbrite.com

Date: 16th of February, from 6:00 PM to 8:00 PM
Place: betahaus, 19-20 Prinzessinnenstr (U8: Moritzplatz), 4th floor Arena hall

Gephi meet-up #3 in Berlin

user-group_smallText Network Analysis with Gephi by Dmitry Paranyushkin / Nodus Labs

In this workshop we will demonstrate a novel method for text network analysis using Gephi graph visualization software. Unlike other topic modelling methods (latent semantic network analysis, LDA) our approach takes into account the structural properties of text network in order to identify the clusters for meaning circulation and the most influential concepts within the text. You will learn how to create graph network representations of texts and perform their comparative quantitive and qualitative analysis. The method can be especially useful for quick text summarization and group sentiment profiling.

What It Can Be Used For:

– Identifying the most influential concepts and topics within a text.
– Comparing different texts together, especially what strategy a text uses to “push” a certain agenda.
– Group sentiment analysis: find the terms that unite any group together
– Quick text summary and overview (can be especially useful for studying or law text)

If you’d like to participate you can send us a short text (200 to 300 words) to info at noduslabs dot com describing your interests and current occupations. We will create text graphs both for participants and the whole group and see how they relate to one another (see the image attached). This may also be useful for you to meet other like-minded individuals at betahaus or find the people who could complement your cognitive map with their knowledge.

To sign up: workshopnoduslabs1.eventbrite.com

Date: 7th of December, Wednesday, 18.00 to 20.00
Place: betahaus, 19-20 Prinzessinnenstr (U8: Moritzplatz), 4th floor Arena hall

We highly recommend you to bring your laptop with you and pre-install Gephi graph visualization software on your computer (works on Mac, PC, Linux).

Gephi meet-up #2 in Berlin

user-group_smallPeople in Beta is a festival about startup culture, diy and co-working hosted on the 1st of October at betahaus in Berlin.

As a part of this festival Nodus Labs will do a workshop on social network analysis starting at 13.30, finishing at 14.30 (reserve your space on people in beta festival website).

Also, betahaus cafe will be a space where everyone can host their own session, so right after the workshop, at 14.30, we’ll host the second Gephi meetup in Berlin downstairs at one of the open tables. Together with the other guests we’ll talk about the different ways we use Gephi and Dmitry from Nodus Labs will show some practical applications of Gephi for text network analysis and social network analysis.

You are welcome to come and join in!

You can read a report on the previous meet-up on the blog of Nodus Labs.

 

dmitry

Dmitry Paranyushkin is a professional amateur who’s had numerous affairs in the fields of arts, music, intersubjective relations, network research and internet business. He’s the founder of ThisIsLike.Com – an online mnenomic network and Nodus Labs – an exploratorium of ideas in the fields of network analysis. Having fled Russia for undefined reasons in 1976 he’s found a temporary refuge in Berlin where he lives in a castle on Spree river and occasionally visits betahaus to steal rocket-fast broadband frequencies.

First Gephi drink in Paris

user-group_smallThis is an announcement for the first Gephi User Group drink in Paris! The area has many active Gephi users and supporters and we are looking forward making regular meetups, to create connections and discuss features and projects. The group is also open to students interested in open-source or data visualization.

date2 The first event is planned for Wednesday September 28, 20.00 to 22.00 (free access) in Aux 2 Academies, 15 Rue Bonaparte, Paris Au Père Tranquille, 16 rue Pierre Lescot, Paris (map).

Gephi can be used in many domains and with different types of data. Whether you are a scientist, a student, an artist, a developer or a simple enthusiast, you are welcome to join the community and show up at our meetup. It’s a great opportunity to ask questions, discuss data, plugins, code, metrics or visualization.

seb

The meetup will be organized by Sébastien Heymann, Gephi co-founder. To register, sign-in on meetup.com and RSVP for the event.

First Gephi meet-up in Berlin

user-group_smallThis is an announcement for the first Gephi User Group meet-up in Berlin! The area has many active Gephi users and supporters and we are looking forward making regular meetups, to create connections and discuss features and projects. The group is also open to students interested in open-source or data visualization.

date2 The first event is planned for Thursday September 8, 17.30 to 19.30 (free access) in betahaus, 4th floor (Arena), Prinzessinnenstr 19-20, 10999, Berlin (map).

In this workshop conducted by Dmitry Paranyushkin from Nodus Labs hosted at Berlin’s most important co-working hub betahaus, we will demonstrate how one can visualize and analyze a social network or a community (using an example from Facebook selected by the participants). We will find out how to identify the most influential nodes within a network, various subgroups within a community, and the most efficient communication strategies to spread information within a group.

We will also discuss what behavior within the network fosters stronger ties between the members and a more sustainable community.

This event will also be first event of the Gephi Meetup Group in Berlin and we can move to betahaus cafe after to discuss further questions after the workshop.

 

dmitry

Dmitry Paranyushkin is a professional amateur who’s had numerous affairs in the fields of arts, music, intersubjective relations, network research and internet business. He’s the founder of ThisIsLike.Com – an online mnenomic network and Nodus Labs – an exploratorium of ideas in the fields of network analysis. Having fled Russia for undefined reasons in 1976 he’s found a temporary refuge in Berlin where he lives in a castle on Spree river and occasionally visits betahaus to steal rocket-fast broadband frequencies.

Meetups and Workshops in SF Bay Area

This article tries to give feedbacks on two recent Gephi events in the San Francisco Bay Area.

The Gephi community is expanding and local events are the best way to meet and greet. We fully support any initiative, and are willing to help/sponsor any meetup or workshop you want to organize. Please contact us for more details.

Gephi User Group Meetup #1

This meetup took place in San Francisco, inviting the local Gephi users to gather around a glass and discuss the project. Hosted by Mathieu Bastian, Gephi’s co-founder, around 15 users showed up. The purpose of a Gephi User Group is to help users, but also developers interested in plug-ins development. For us, it is a great way to simply understand how Gephi is used and on what the development should focus in future releases.

The most notable fact is the diversity of the users: academics, hackers, startups, designers, media, data scientists and more. It’s amazing to see in how many domains network data exists and where analyzing them make sense. Supporting all this diverse datasets is also a challenge, and that was a strong endorsement for the plug-in architecture. Another strength of Gephi is its performances. I asked the question “How big are your networks?”. It’s interesting to notice many of Gephi’s users have very large networks, and are pushing the envelop on performances and memory usage in their daily use.

In general, Mathieu received excellent feedback on the software, praising the interactivity, aesthetics and the plug-in architecture. Users also mentioned that the documentation is still sparse and focus should be made on data transformation. Indeed, a major blocker is often to create a network dataset from an Excel file or a database. The Gephi Toolkit attracted a lot of questions as well.

Gephi Workshop in San Francisco

This workshop was thankfully organized by Kris Chen and Elijah Meeks, and hosted by Noisebridge in San Francisco. Part of the Data Visualization Group in Bay Area, this workshop gathered an amazing crowd of more than 50 participants, eager to learn how to use Gephi. Elijah Meeks is a Digital Humanities Specialist at Stanford and one of the most advanced Gephi user. He ran the workshop, walking users through the complete Gephi process, from data import to preview. Mathieu Bastian was also present, helping users.

IMG_4173-1024x768

We hope to make more workshops like this, as it was a great success. Many Thanks to organizers.

The next workshops will be presented by Sébastien Heymann and Julian Bilcke at the UKSNA and ICWSM conferences in July!