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Questions and Answers
Which of the following is a challenge in analyzing behavioral data such as stylometry extracted from computer-mediated communications?
Which of the following is a challenge in analyzing behavioral data such as stylometry extracted from computer-mediated communications?
- The structured nature of the data
- The lack of variability in the data
- The unstructured nature of the data (correct)
- The inherent stability of human behavioral and cognitive characteristics
What is the difference between free actions and fixed actions in human-computer interaction data?
What is the difference between free actions and fixed actions in human-computer interaction data?
- Free actions are used for static authentication while fixed actions are used for continuous authentication
- Free actions are freely generated by a user without following a predefined template while fixed actions refer to sample HCI data generated using predefined templates (correct)
- Free actions are sample HCI data generated using predefined templates while fixed actions are freely generated by a user
- Free actions are generated using predefined templates while fixed actions are freely generated by a user
What is the equal error rate (EER) used for in assessing the performance of a biometric system?
What is the equal error rate (EER) used for in assessing the performance of a biometric system?
- To measure the accuracy of a biometric system in terms of false rejection rate (FRR) and false acceptance rate (FAR)
- To measure the time to authenticate (TTA)
- To identify the operating point where FAR equals FRR (correct)
- To assess the variability of human behavioral and cognitive characteristics
Which of the following is NOT a challenge in analyzing behavioral data such as stylometry extracted from computer-mediated communications?
Which of the following is NOT a challenge in analyzing behavioral data such as stylometry extracted from computer-mediated communications?
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What is the primary performance factor for any biometric system?
What is the primary performance factor for any biometric system?
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Why is free actions analysis more challenging than fixed actions analysis in continuous authentication?
Why is free actions analysis more challenging than fixed actions analysis in continuous authentication?
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