Fredrik Erlandsson


PhD in Computer science. Assistant professor at Blekinge Intstitute of Technology. Research topics includes Network Science and Social Media interactions.

Fredrik Erlandsson is an Assistant Professor in Computer Science at the Department of Computer Science at Blekinge Institute of Technology (BTH) in Sweden. Fredrik’s research contains a huge amount of data from social media such as Facebook and Twitter etc. He’s research have focused on how to understand the users online behaviors, and further on to identify influential users. This have been done by modeling the behaviors on social media into interaction networks, which enable network-based and graph-based methods to model and understand the users’ behaviors. Fredrik is currently working with the project environment of BigData@BTH.

Research summary

Social media provides users with services that enable them to interact both globally and instantly. The behaviors on social media can be modeled into interaction networks, which enable network-based and graph-based methods to model and understand the user behaviors.

An additional contribution from the research conducted is that a novel method of crawling that extracts all social interactions from Facebook is presented. They have collected 280 million posts in this research from public pages on Facebook using this crawling method. All this from 700 million users. With all this data it’s possible to illustrate interactions between different users.

Furthermore, a proposed method is used and validated for finding initial nodes for information cascade analyzes, and identification of influential users. Based upon the conducted research, it appears that the data mining approach, association rule learning, can be used successfully in identifying in influential user with high accuracy. In addition, the same method can also be used for identifying initial nodes in an information cascade setting, with no significant difference than other network-based methods.

Finally, the privacy-related consequences of posting online is an important area for users to consider. Therefore, mitigating privacy risks contributes to a secure environment and methods to protect user privacy are presented.

Media attention

Invited talks and Presentations

I have given invited talks and presentations at the following events:


Non academic

Professional Community Activities and Review Responsibilities

In addition to my research and publications, I have been an active participant in reviewing journal and conference papers (some of which are regarded as top quality journals and conferences in my field) on a regular basis as described in the activities below. I have also served as a member of several international program committees. Below is a list of the activities that I found relevant and also activities that I have been recently invited to:



International Program Committees & Conference Review Activities

Research Grants, Project Management & Participation