Social Network An...
Follow
8.8K views | +19 today
 
Scooped by ukituki
onto Social Network Analysis #sna
Scoop.it!

Social Networks, Individuals and Small Worlds

Guest lecture at Free University in Knowledge Management course by Maura Soekijad and Roos Erkelens

more...
No comment yet.

From around the web

Social Network Analysis #sna
Social Network Analysis
Curated by ukituki
Your new post is loading...
Your new post is loading...
Scooped by ukituki
Scoop.it!

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

ukituki's insight:

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.

more...
No comment yet.
Scooped by ukituki
Scoop.it!

The Art of Financial Network Science

The Art of Financial Network Science | Social Network Analysis #sna | Scoop.it
ukituki's insight:

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.

more...
No comment yet.
Scooped by ukituki
Scoop.it!

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.
more...
No comment yet.
Scooped by ukituki
Scoop.it!

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.

 
more...
No comment yet.
Scooped by ukituki
Scoop.it!

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...
more...
No comment yet.
Scooped by ukituki
Scoop.it!

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
more...
No comment yet.
Scooped by ukituki
Scoop.it!

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 ›
more...
Jacky Degueldre's curator insight, September 19, 7:10 PM

key concepts cybermapping

Scooped by ukituki
Scoop.it!

Multilayer Networks tutorial #netsci2014

These are the slides for a tutorial talk about "multilayer networks" that I gave at NetSci 2014. I walk people through a review article that I wrote with my …
more...
No comment yet.
Scooped by ukituki
Scoop.it!

Agricultural Science in the Wild: A Social Network Analysis of Farmer Knowledge Exchange

Agricultural Science in the Wild: A Social Network Analysis of Farmer Knowledge Exchange | Social Network Analysis #sna | Scoop.it

PLOS ONE: an inclusive, peer-reviewed, open-access resource from the PUBLIC LIBRARY OF SCIENCE. Reports of well-performed scientific studies from all disciplines freely available to the whole world.

more...
No comment yet.
Scooped by ukituki
Scoop.it!

A Fascinating Look Inside Those 1.1 Million Open-Internet Comments

A Fascinating Look Inside Those 1.1 Million Open-Internet Comments | Social Network Analysis #sna | Scoop.it
These cluster maps give us a two-dimensional look at the complex arguments Americans posted on the topic of net neutrality. One theme in the comments had to do with the American dream.
more...
No comment yet.
Scooped by ukituki
Scoop.it!

Watch how the centers of Western culture migrated over 2,000 years

Watch how the centers of Western culture migrated over 2,000 years | Social Network Analysis #sna | Scoop.it
If you want to map cultural hubs throughout time, you can track where history's most notable figures—like Leonardo da Vinci, Jane Austen, and Steve Jobs—were born and died. That was the thinking of Dr. Maximilian Schich, associate professor for art and technology at the University of Texas at Dallas. Schich and his team took data on more than 100,000 notable...
more...
No comment yet.
Rescooped by ukituki from Interfaces for growth
Scoop.it!

Complexity Rising: From Human Beings to Human Civilization

Complexity Rising: From Human Beings to Human Civilization | Social Network Analysis #sna | Scoop.it
The New England Complex Systems Institute (NECSI) is an independent educational and research institution dedicated to advancing the study of complex systems.

Via AleksBlumentals
more...
AleksBlumentals's curator insight, July 8, 4:53 AM

This schematic history of human civilization reflects a growing complexity of the collective behavior of human organizations. Some will see in the graphics what intuitively seems correct, namely that areas of grey an lateral connections matter increasingly more:

"The internal structure of organizations changed and is changing, whether this is built in formally or not.  Going from the large branching ratio hierarchies of ancient civilizations, through decreasing branching ratios of massive hierarchical bureaucracies, to hybrid systems where lateral connections appear to be more important than the hierarchy."


Without new means to connect these groups the isolation and silos make it impossible to overcome local optimums:


"As the importance of lateral interactions increases, the boundaries between subsystems become porous. The increasing collective complexity also is manifest in the increasing specialization and diversity of professions."


 

Jean-Guy Frenette's curator insight, July 15, 9:40 PM

PDGMan

Scooped by ukituki
Scoop.it!

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
ukituki's insight:


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.

 

more...
No comment yet.
Scooped by ukituki
Scoop.it!

Social Ties in the Digital Age by @ognyanova

Core discussion ties in America - recent changes and the role of technology.
more...
No comment yet.
Scooped by ukituki
Scoop.it!

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.

more...
No comment yet.
Scooped by ukituki
Scoop.it!

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
ukituki's insight:

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. 

more...
No comment yet.
Rescooped by ukituki from SNA - Social Network Analysis ... and more.
Scoop.it!

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
more...
No comment yet.
Scooped by ukituki
Scoop.it!

Breaking the Cell #WebExpo

Talk given at Using Google Apps Script and Sheets for social network data mining and analysis Examples used in this presentation bundled at http://bit.ly/break…;
more...
No comment yet.
Scooped by ukituki
Scoop.it!

The Strength of Weak Ties: New animation from Dalton Conley - YouTube

It is the people with whom we are the least connected who offer us the most opportunities. Latest animation from Dalton Conley's You May Ask Yourself. Learn ...
more...
No comment yet.
Rescooped by ukituki from Social Foraging
Scoop.it!

Collective Learning and Optimal Consensus Decisions in Social Animal Groups

Collective Learning and Optimal Consensus Decisions in Social Animal Groups | Social Network Analysis #sna | Scoop.it

Learning has been studied extensively in the context of isolated individuals. However, many organisms are social and consequently make decisions both individually and as part of a collective. Reaching consensus necessarily means that a single option is chosen by the group, even when there are dissenting opinions. This decision-making process decouples the otherwise direct relationship between animals' preferences and their experiences (the outcomes of decisions). Instead, because an individual's learned preferences influence what others experience, and therefore learn about, collective decisions couple the learning processes between social organisms. This introduces a new, and previously unexplored, dynamical relationship between preference, action, experience and learning. Here we model collective learning within animal groups that make consensus decisions. We reveal how learning as part of a collective results in behavior that is fundamentally different from that learned in isolation, allowing grouping organisms to spontaneously (and indirectly) detect correlations between group members' observations of environmental cues, adjust strategy as a function of changing group size (even if that group size is not known to the individual), and achieve a decision accuracy that is very close to that which is provably optimal, regardless of environmental contingencies. Because these properties make minimal cognitive demands on individuals, collective learning, and the capabilities it affords, may be widespread among group-living organisms. Our work emphasizes the importance and need for theoretical and experimental work that considers the mechanism and consequences of learning in a social context.

 


Via Ashish Umre
more...
No comment yet.