Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 64 for “"Detection Theory"”.
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Integration of Multidimensional Signal Detection Theory with Fuzzy Signal Detection Theory
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 …
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The A-B Signal Detection Theory Model
… Green and Swets (1966)'s contention that the detection and response processes are independent from each other is questionable. Furthermore, the findings from the Monte Carlo Study suggest that the <em>a-b</em> SDT model provides more accurate measures to capture the dependency between these …
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Advancing Pattern Detection, Theory Development and Decision Making with Explainable AI
… decision-making and computationally intensive theory development (CTD) is a subject of ongoing debate, particularly concerning how and whether these methods can be effectively employed, and how the reliability of their explanations can be ensured. This dissertation addresses these issues by …
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Optimal and Suboptimal Signal Detection-On the Relationship Between Estimation and Detection Theory
… test, we maximize the asymptotic probability of detection of the SFET using the Maximum Likelihood Estimation (MLE). We propose a systematic method allowing to derive the Asymptotically Optimal SFET. Finally, we extend the concept of SFET to the M-ary hypothesis testing. Defining M different SFs …
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Signal Detection Theory on Associative Learning: an example from contrary cue interaction phenomena
Tesis con mención internacional
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Compact Optical Sensing Systems for pH and Other Substances Detection - Theory and Implementation
Chemical detection is of importance in research and industry. Optical sensors based on contact imaging realize the chemical detection in compact, efficient and inexpensive ways. In the first project real-time optical pH sensor based on complementary metal–oxide–semiconductor (CMOS) contact imaging …
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Detecting Threats from Constituent Parts: A Fuzzy Signal Detection Theory Analysis of Individual Differences
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. …
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Assessing the Relationship Between Item Recognition and Source Memory Using Multivariate Signal Detection Theory
This paper develops a bivariate strength model that is able to simultaneously account for source memory and recognition memory performance. The model is grounded in the source monitoring framework, which suggests that the strength of a test probe depends upon what aspects of a memory representation …
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Application of signal detection theory to the recognition of objects in colour-encoded x-ray images
… These results were compared with weapon detection in standard static 2D scans of the same luggage. Threatening objects hidden in this luggage were more readily detected in kinetic 3-dimensional images than in the standard images. Initial results were obtained using greyscale images and …
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Crisp and Fuzzy Signal Detection Theory and Pilot Weather Judgment: Implications for VFR Flights Into IMC
… uses Jensen's Pilot Judgment Model and Signal Detection Theory to explain pilot judgment. The impact of Graphical Weather Information Systems (GWIS), particularly graphical METARs on pilot judgment was also assessed. Twenty-four general aviation pilots were shown simulated video images of …
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Rater Drift in Constructed Response Scoring via Latent Class Signal Detection Theory and Item Response Theory
… two measurement models - latent class signal detection theory (SDT) and item response theory (IRT) models. Rater effects (e.g., leniency and strictness) are partly examined with simulations, where the ability of different models to capture changes in rater behavior is studied. Drift is also …
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Using signal detection theory to model the detection of warning signals in normal and hearing-impaired listeners while wearing hearing protection
… sites. The rating method paradigm of signal detection theory was used as the experimental procedure in order to separate the subjects’ absolute sensitivities to the alarm from their individual criteria for deciding to respond in an affirmative manner. Results indicated that even at a fairly …
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The Effects of Sensor Performance as Modeled by Signal Detection Theory on the Performance of Reinforcement Learning in a Target Acquisition Task
… of sensor performance, as modeled through Signal Detection Theory (SDT), on the ability of RL algorithms to accomplish a target localization task are examined. Three levels of sensor sensitivity are simulated and compared to the results of the same system using a perfect sensor. To accomplish the …
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Dynamics of human decision-making : vestibular perception and neural correlates
… conceptual frameworks of decision-making, signal detection theory and sequential analyses (i.e., drift diffusion model). Specifically, in order to capture the end-point statistics of binary choice and confidence, we built on a previous study that defined choice confidence in terms of psychophysics …
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The Information Theory of Vision: evidence from eye-movements
… a model of visual search, the Information Theory of Vision (ITV). ITV uniquely proposes that the time it takes to perform the initial stage of visual search, during which likely non-targets (lures) are separated from possible targets (candidates), will increase with the amount of …
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Frugal hypothesis testing and classification
The design and analysis of decision rules using detection theory and statistical learning theory is important because decision making under uncertainty is pervasive. Three perspectives on limiting the complexity of decision rules are considered in this thesis: geometric regularization, …
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Effect of Automation Management Strategies and Sensory Modalities as Applied to a Baggage Screening Task
… and alarms can be studied in terms of signal detection theory. Baggage screening is vital to national security and should be completed in a time efficient manner without compromising accuracy. In the present study, the automation management strategies of management by consent (MBC) and …
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