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 48 for “"signal 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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Signal Detection Theory on Associative Learning: an example from contrary cue interaction phenomena
Tesis con mención internacional
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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
… study 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 …
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Rater Drift in Constructed Response Scoring via Latent Class Signal Detection Theory and Item Response Theory
… using 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 …
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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
… International standard ISO 773 1—1986(E), Danger Signals for Work Places — Auditory Danger Signals, requires that any auditory alarm or warning be audible to all individuals in the workplace, including those suffering from a hearing loss and/or wearing hearing protection devices (HPDs). Very …
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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 …
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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 …
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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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Effect of Automation Management Strategies and Sensory Modalities as Applied to a Baggage Screening Task
… automation 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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Eyes-Free Input on Mobile Devices
… of soft keys, Perkinput uses concepts from signal detection theory to determine the user's input. Based on Perkinput, I developed PassChords, a touchscreen authentication method that has no audio feedback. Unlike current eyes-free input methods, PassChords doesn't echo a user's input, so it …
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Examining the Impact of Examinee-Selected Constructed Response Items in the Context of a Hierarchical Rater Signal Detection Model
… under the hierarchical rater model with signal detection theory rater components (HRM-SDT; DeCarlo, Kim, and Johnson, 2011) and a variety of examinee-item selection mechanisms were considered. These conditions varied from the hypothetical baseline condition--where examinees choose …
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Experimental evaluation of retroreflective markings on trains and grade crossings
… Receiver Operating Characteristic (ROC) based on Signal Detection Theory (SDT). The second experiment involved a driving task in which the subject encountered numerous grade crossings, and the recognition distance between the train and subject's position was recorded and analyzed.
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Working Memory, Search, And Signal Detection: Implications For Interactive Voice Response System Menu Design
… determine whether theories of visual search and signal detection theory (SDT) could be used to predict auditory search behavior. Results of this experiment indicate that creating a deeper structure with shorter menus is detrimental to performance and satisfaction and more demanding of working …
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