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University of Central Florida

Theses/Dissertations

2015

Fuzzy signal detection theory

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Full-Text Articles in Psychology

Integration Of Multidimensional Signal Detection Theory With Fuzzy Signal Detection Theory, Maureen O'Connell Jan 2015

Integration Of Multidimensional Signal Detection Theory With Fuzzy Signal Detection Theory, Maureen O'Connell

Electronic Theses and Dissertations

Signal detection theory (SDT) has proven to be a robust and useful statistical model for analyzing human performance in detection and decision making tasks. As with many models extensions have been proposed in order capture and represent the real world to a greater degree. Multidimensional Signal Detection Theory (MSDT) has had success in describing and modeling complex signals, signals that are comprised by more than one identifiable component dimension. Fuzzy Signal Detection Theory (FSDT) has had success in modeling and measuring human performance in cases where there exist ambiguity in the signal or response dimension characteristics, through the application of …


Detecting Threats From Constituent Parts: A Fuzzy Signal Detection Theory Analysis Of Individual Differences, Ida Van De Car Jan 2015

Detecting Threats From Constituent Parts: A Fuzzy Signal Detection Theory Analysis Of Individual Differences, Ida Van De Car

Electronic Theses and Dissertations

Signal detection theory (SDT) provides a theoretical framework for describing performance on decision making tasks, and fuzzy signal detection theory (FSDT) extends this description to include tasks in which there are levels of uncertainty regarding the categorization of stimulus events. Specifically, FSDT can be used to quantify the degree to which an event is 'signal-like', i.e., the degree to which a stimulus event can be characterized by both signal and non-signal properties. For instance, an improvised explosive device (IED) poses little threat when missing key elements of its assembly (a stimulus of low, but not zero, signal strength) whereas the …