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Predicting Group Evolution in the Social Network

Groups - social communities are important components of entire societies, analysed by means of the social network concept. Their immanent feature is continuous evolution over time. If we know how groups in the social network has evolved we can use this information and try to predict the next step in the given group evolution. In the paper, a new aproach for group evolution prediction is presented and examined. Experimental studies on four evolving social networks revealed that (i) the prediction based on the simple input features may be very accurate, (ii) some classifiers are more precise than the others and (iii) parameters of the group evolution extracion method significantly influence the prediction quality
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Social Network Analysis #sna
Social Network Analysis
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What can we learn from the history of social network analysis? | Knight Lab | Northwestern University

What can we learn from the history of social network analysis? | Knight Lab | Northwestern University | Social Network Analysis #sna | Scoop.it
Northwestern University Knight Lab is a team of technologists and journalists working at advancing news media innovation through exploration and experimentation.
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Network visualization – Gephi fun with R

Network visualization – Gephi fun with R | Social Network Analysis #sna | Scoop.it
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In the second part of my “how to quickly visualize networks directly from R” series, I’ll discuss how to use R and the “rgexf” package to create network plots in Gephi. Gephi is a great network visualization tool that allows real-time network visualization and exploration, including network data spatializing, filtering, calculation of network properties, and clustering. 

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Thanksgiving ingredient network leftovers

Thanksgiving ingredient network leftovers | Social Network Analysis #sna | Scoop.it
Michaeleen Doucleff just wrote a very fun article on our recipe network paper for NPR’s the Salt. It made me realize that Edwin Teng, Yuru Lin and I have some leftover plots that may be Thanksgiving appropriate. If you don’t have quite the right ingredients handy while cooking Thanksgiving dinner, here is a network of [...]
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Alexander Semenov's curator insight, November 29, 8:15 PM

Our International laboratory of applied social network analysis has similar project

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See how red tweeters and blue tweeters ignore each other on Ferguson

See how red tweeters and blue tweeters ignore each other on Ferguson | Social Network Analysis #sna | Scoop.it
There are red tweets and blue tweets…
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Alexander Semenov's curator insight, December 17, 2:51 AM

I haven't seen a meaningful hairball in a while. Here is one of them: echo-chamber effect in tweets about Ferguson.

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Data science with F#: Social network analysis - Twitter case study by @evelgab

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In this session we will work through the whole process of social network analysis: from downloading connections using Twitter REST-based API, to implementing our own PageRank algorithm which finds the most central Twitter accounts. In the process you’ll see how we can use F# type providers to access data and harness the power of the statistical language R to run some machine learning algorithms.

At the end, you’ll know how to run your own analysis on data from Twitter and how to use data science tools to gain insights from social networks.

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The Art of Financial Network Science

The Art of Financial Network Science | Social Network Analysis #sna | Scoop.it
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There was an amazing array of images of financial networks at the seminar on Financial Risk and Network Theory to launch the new journal on Network Theory in Finance. Have a look at these visualizations from some of the 23 presentations.

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The mathematician who proved why hipsters all look alike

The mathematician who proved why hipsters all look alike | Social Network Analysis #sna | Scoop.it
What brain neurons tell us about the 'hipster effect' when all contrarians end up looking the same.
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R Graph Catalog

R Graph Catalog | Social Network Analysis #sna | Scoop.it
ukituki's insight:

This catalog is a complement to “Creating More Effective Graphs” by Naomi Robbins. All graphs were produced using the Rlanguage and the add-on packageggplot2, written by Hadley Wickham. The gallery is maintained by Joanna Zhao andJennifer Bryan.

 
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Engineering Serendipity: The Story of Web Summit's Growth

Engineering Serendipity: The Story of Web Summit's Growth | Social Network Analysis #sna | Scoop.it
It’s taken us 4 years to scale Web Summit from 400 attendees to 20,000 and a bunch of physicists have played a big part. Back in 2010, 3 international journalists showed up, this year it will exceed 1,200. Investors...
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The First Interactive Network and Graph Data Repository with Interactive Graph Analytics and Visualization

The First Interactive Network and Graph Data Repository with Interactive Graph Analytics and Visualization | Social Network Analysis #sna | Scoop.it
The First Interactive Network Data Repository with Real-time Interactive Visualization and Analytics
ukituki's insight:
 Network Repository Stats19Types of network datasets521Network datasets in repository21Dynamic networks with time
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Exploring Telenovela with DBpedia, R and Gephi - David Sherlock

Exploring Telenovela with DBpedia, R and Gephi - David Sherlock | Social Network Analysis #sna | Scoop.it
Today I discovered Telenovelas. Telenovelas are short limited run programs similar to soap opera, they are popular in Spanish language counties and they are serious business. I stumbled across a clip on youtube and was instantly hooked. Check this out:…Read more ›
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Jacky Degueldre's curator insight, September 19, 7:10 PM

key concepts cybermapping

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Intellectual Cooperation: multi-level network analysis of an international organization

Intellectual Cooperation: multi-level network analysis of an international organization | Social Network Analysis #sna | Scoop.it
Digital humanities, Data visualization, Network analysis
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Fascinating maps of what people tweet about in Istanbul, Baltimore, Barcelona and more

Fascinating maps of what people tweet about in Istanbul, Baltimore, Barcelona and more | Social Network Analysis #sna | Scoop.it
Dave Troy crunches data to see places not as neighborhoods but as relationships between people.
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72 Hours of #Gamergate — The Message — Medium

72 Hours of #Gamergate — The Message — Medium | Social Network Analysis #sna | Scoop.it
Digging through 316,669 tweets from three days of Twitter’s two-month-old trainwreck
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Existence of outsiders as a characteristic of online communication networks

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Online social networking services (SNSs) involve communication activities between large number of individuals over the public Internet and their crawled records are often regarded as proxies of real (i.e., offline) interaction structure. However, structure observed in these records might differ from real counterparts because individuals may behave differently online and non-human accounts may even participate. To understand the difference between online and real social networks, we investigate an empirical communication network between users on Twitter, which is perhaps one of the largest SNSs.
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Social and Economic Networks (book).

Social and Economic Networks (book). | Social Network Analysis #sna | Scoop.it
Description of the book Social and Economic Networks by Jackson, M.O., published by Princeton University Press
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Networks of relationships help determine the careers that people choose, the jobs they obtain, the products they buy, and how they vote. The many aspects of our lives that are governed by social networks make it critical to understand how they impact behavior, which network structures are likely to emerge in a society, and why we organize ourselves as we do. In Social and Economic Networks, Matthew Jackson offers a comprehensive introduction to social and economic networks, drawing on the latest findings in economics, sociology, computer science, physics, and mathematics. He provides empirical background on networks and the regularities that they exhibit, and discusses random graph-based models and strategic models of network formation. He helps readers to understand behavior in networked societies, with a detailed analysis of learning and diffusion in networks, decision making by individuals who are influenced by their social neighbors, game theory and markets on networks, and a host of related subjects. Jackson also describes the varied statistical and modeling techniques used to analyze social networks. Each chapter includes exercises to aid students in their analysis of how networks function.

 

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Social Ties in the Digital Age by @ognyanova

Core discussion ties in America - recent changes and the role of technology.
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Cross social network analysis for building quality data sets | Log for incrementing randomities

Cross social network analysis for building quality data sets | Log for incrementing randomities | Social Network Analysis #sna | Scoop.it
ukituki's insight:

When it comes to machine learning, building quality training data can be the toughest part of your work. Our goal was to train a SVM classifier that would guess the demographics of a given twitter user based on the content of their tweets, namely their age, gender, education(low/mid/high) and location (city/county). For that we needed a data set containing profiles and their demographics. To simplify the problem, we decided to limit ourselves to users located in the UK, and to tweets written in English.

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The crucial role of SNA for investments in startup companies

The crucial role of SNA for investments in startup companies | Social Network Analysis #sna | Scoop.it
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Based on a proprietary analysis of over 2000 startup companies in mainly Germany and beyond (predominantly Europe) and their ties to over 500 relevant investors from across the world (angel investors, VC funds across all stages, ranging from the West Coast in the US to Hong Kong) which have invested in those startups, we highlight the importance of social network analysis (SNA). The dynamic network screening, the social capital related insights as well as ongoing portfolio as well as stakeholder monitoring represent just a fraction of possibilities when it comes to social network analysis` relevance for investing in the startup ecosystem. Whether you invest directly, search for co-investors as an investor or even funding as a startup, social network analytic insights will become mainstream in decision making complementing existing financial data in the future. 

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The Social Network of World Leaders on Twitter

The Social Network of World Leaders on Twitter | Social Network Analysis #sna | Scoop.it
Over the past few months, I have dedicated much time to analyzing the social networks of digital diplomacy. My assumption was that ministries of foreign affairs, embassies and other diplomatic inst...

Via João Greno Brogueira
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