Search Results for author: Audun Jøsang

Found 7 papers, 2 papers with code

Hyper Evidential Deep Learning to Quantify Composite Classification Uncertainty

1 code implementation17 Apr 2024 Changbin Li, Kangshuo Li, Yuzhe Ou, Lance M. Kaplan, Audun Jøsang, Jin-Hee Cho, Dong Hyun Jeong, Feng Chen

In this paper, we propose a novel framework called Hyper-Evidential Neural Network (HENN) that explicitly models predictive uncertainty due to composite class labels in training data in the context of the belief theory called Subjective Logic (SL).

Multi-class Classification

Uncertainty-Aware Reward-based Deep Reinforcement Learning for Intent Analysis of Social Media Information

no code implementations19 Feb 2023 Zhen Guo, Qi Zhang, Xinwei An, Qisheng Zhang, Audun Jøsang, Lance M. Kaplan, Feng Chen, Dong H. Jeong, Jin-Hee Cho

Distinguishing the types of fake news spreaders based on their intent is critical because it will effectively guide how to intervene to mitigate the spread of fake news with different approaches.

Decision Making intent-classification +1

A Survey on Uncertainty Reasoning and Quantification for Decision Making: Belief Theory Meets Deep Learning

no code implementations12 Jun 2022 Zhen Guo, Zelin Wan, Qisheng Zhang, Xujiang Zhao, Feng Chen, Jin-Hee Cho, Qi Zhang, Lance M. Kaplan, Dong H. Jeong, Audun Jøsang

We found that only a few studies have leveraged the mature uncertainty research in belief/evidence theories in ML/DL to tackle complex problems under different types of uncertainty.

Decision Making

Threat Actor Type Inference and Characterization within Cyber Threat Intelligence

no code implementations3 Mar 2021 Vasileios Mavroeidis, Ryan Hohimer, Tim Casey, Audun Jøsang

As the cyber threat landscape is constantly becoming increasingly complex and polymorphic, the more critical it becomes to understand the enemy and its modus operandi for anticipatory threat reduction.

Cryptography and Security

Using Subjective Logic to Estimate Uncertainty in Multi-Armed Bandit Problems

1 code implementation17 Aug 2020 Fabio Massimo Zennaro, Audun Jøsang

The multi-armed bandit problem is a classical decision-making problem where an agent has to learn an optimal action balancing exploration and exploitation.

Decision Making Multi-Armed Bandits

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