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Fredrik Johansson
Fredrik Johansson
Senior Data Scientist @ Swedish Police
Verifierad e-postadress på foi.se
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Detecting linguistic markers for radical violence in social media
K Cohen, F Johansson, L Kaati, JC Mork
Terrorism and Political Violence 26 (1), 246-256, 2014
2922014
A Bayesian network approach to threat evaluation with application to an air defense scenario
F Johansson, G Falkman
2008 11th International conference on information fusion, 1-7, 2008
1482008
Harvesting and analysis of weak signals for detecting lone wolf terrorists
J Brynielsson, A Horndahl, F Johansson, L Kaati, C Mårtenson, ...
Security Informatics, 2013
1372013
Detection of vessel anomalies-a Bayesian network approach
F Johansson, G Falkman
2007 3rd International Conference on Intelligent Sensors, Sensor Networks …, 2007
1032007
Estimating citizen alertness in crises using social media monitoring and analysis
F Johansson, J Brynielsson, MN Quijano
2012 European Intelligence and Security Informatics Conference, 189-196, 2012
892012
Detecting multiple aliases in social media
F Johansson, L Kaati, A Shrestha
Proceedings of the 2013 IEEE/ACM international conference on advances in …, 2013
782013
Evaluating the performance of TEWA systems
F Johansson
Örebro University, 2010
742010
Emotion classification of social media posts for estimating people’s reactions to communicated alert messages during crises
J Brynielsson, F Johansson, C Jonsson, A Westling
Security Informatics 3 (1), 7, 2014
732014
Detecting computer-generated disinformation
H Stiff, F Johansson
International Journal of Data Science and Analytics, 2021
692021
Analysis of weak signals for detecting lone wolf terrorists
J Brynielsson, A Horndahl, F Johansson, L Kaati, C Mårtenson, ...
2012 European Intelligence and Security Informatics Conference, 197-204, 2012
672012
A comparison between two approaches to threat evaluation in an air defense scenario
F Johansson, G Falkman
Modeling Decisions for Artificial Intelligence, 110-121, 2008
552008
Detecting linguistic markers of violent extremism in online environments
F Johansson, L Kaati, M Sahlgren
Artificial intelligence: Concepts, methodologies, tools, and applications …, 2017
472017
Timeprints for identifying social media users with multiple aliases
F Johansson, L Kaati, A Shrestha
Security Informatics 4 (7), 2015
402015
Real-time Allocation of Firing Units To Hostile Targets
F Johansson, G FALKMAN
Journal of Advances in Information Fusion 6 (2), 187-199, 2011
362011
Learning to classify emotional content in crisis-related tweets
J Brynielsson, F Johansson, A Westling
Proceedings of the 2013 IEEE International Conference on Intelligence and …, 2013
322013
An empirical investigation of the static weapon-target allocation problem
F Johansson, G Falkman
Proceedings of the 3rd Skövde Workshop on Information Fusion Topics, 63-67, 2009
312009
Evaluating algorithms for detection of compromised social media user accounts
David Trång, Fredrik Johansson, Magnus Rosell
Proceedings of the Second European Network Intelligence Conference (ENIC …, 2015
30*2015
Supporting maritime situation awareness using self organizing maps and gaussian mixture models
M Riveiro, F Johansson, G Falkman, T Ziemke
Frontiers in Artificial Intelligence and Applications 173, 84, 2008
302008
Combining entity matching techniques for detecting extremist behavior on discussion boards
J Dahlin, F Johansson, L Kaati, C Martenson, P Svenson
Proceedings of the 2012 International Conference on Advances in Social …, 2012
282012
Extending the scope of situation analysis
L Niklasson, M Riveiro, F Johansson, A Dahlbom, G Falkman, T Ziemke, ...
2008 11th international conference on information fusion, 1-8, 2008
282008
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Artiklar 1–20