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Questions tagged [social-network]

Social network data consists of a collection of "nodes" (which can be any sort of entity - e.g. people, corporations) and "links" (which can be any sort of relationship - e.g. friend, sharing a board member).

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1answer
210 views

A statistical model for a sample of independent networks

Based on the lack of responses to my previous network question, perhaps this is not quite the place to ask this question, but I'll give it a try. I am planning a series of studies that involve small ...
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2answers
3k views

Centralization measures in weighted graphs

I'm using the igraph package in R to analyze network data. I'm currently trying to calculate some centrality measures for the ...
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0answers
137 views

Time series for network matrices?

Let's say I have two people. Each of whom I create a network matrix for daily for some of their daily habits $(i.e. A, B, C, D)$. I do this for, let's say $60$ days. Two People and their daily ...
4
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1answer
203 views

Community finding algorithms in large heterogeneous networks

Consider a network that consists of vertices with various meanings. For example: stack overflow users, keywords and user location when asking/answering a question. In this network, when a user asks a ...
1
vote
1answer
82 views

How do you find weight of edges between individuals based on co-participation in the same groups? (SNA)

I have a data set with 20,000 discussion forum threads, many only one or two posts, some up to 400-posts. I have 5,000 individuals who participated in these threads. I want to calculate the strength ...
1
vote
2answers
88 views

Dimensionality reduction to summarise user activity

I'm analysing some user activity data for a social networking website. For each user, I have indicators of activity such as: number of visited pages number of comments number of shares number of ...
6
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1answer
529 views

Visualising relationship data

I have data about a certain workforce, with different worker types W1, W2, W3, W4, etc. I need a method to visualise the relationship between each worker type. In particular, I'm interested in ...
2
votes
1answer
314 views

How can generalized estimating equation be applied to analyze network data?

I'm using the analytical strategy of Christakis and Fowler to study the spread of behaviors in social networks. Page 566 of this article reviews their method in more details: http://humannaturelab.net/...
2
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2answers
481 views

Software for working with exponential random graphs

I am looking for software packages for working with exponential random graph models (fitting/generating them and sampling from the graph distributions). I have only found two packages so far, both ...
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0answers
70 views

How to cluster temporal trajectories of various social network statistics

I have social network data for 100 open source repositories. The data consists of 12 snapshots (1 for every month of a year) of the networks for several repositories. Out of this I want to extract ...
3
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0answers
297 views

How to model a network analysis problem

I have a weighted graph in which the nodes represent users and weighted undirected edges represent the tie between a pairs of users. For a piece of content $c$, and a node $A$ in the graph, given that ...
1
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0answers
77 views

Assessing the consistency of an estimator of the average path length of a large network

I have found the following in a network-science article and would like clarification of what the authors are claiming: We observe that the root mean square of the difference between the empirical ...
10
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1answer
509 views

Data mining techniques in Obama's campaign

I came across this article about the data mining team in Obama's reelection campaign. Unfortunately, the article is very fuzzy about the actual machinery of the statistical algorithms. However, it ...
4
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2answers
150 views

Estimating demographics from internet activity

I'm looking for research papers on estimating demographic information (age, wealth, location, gender etc.) out of internet activities (preferably social network activity or browser history). Where ...
3
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1answer
538 views

Finding “weak ties” in network data

So I am working on a new project looking at formal and informal networks between businesses in the same industry. Namely, I am looking at joint ventures, fractional acquisitions, minority share ...
3
votes
1answer
101 views

Distinguishing statistical (global) and network (local) effects

I am analyzing how users of specific service affect each other by observing communication between them and changes in membership plans. The social network consists of 3M users and 40M connections ...