Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on tr...
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Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on track and relevant. This paper presents one approach for validating a work domain analysis by mapping the action patterns of operators against the work domain space developed by the analysis. This approach provides some validation the analysis, shows the use of the work domain over time in three dimensions, and provides a substantial link between the work analysis approach and traditional task-based approaches.
This paper proposes a new approach to beat detection and prediction in music. Recurrent timing networks are used to detect and predict periodicities in an onset stream and are contained within nodes that compete for s...
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This paper proposes a new approach to beat detection and prediction in music. Recurrent timing networks are used to detect and predict periodicities in an onset stream and are contained within nodes that compete for selection as the best beat hypothesis. Beat prediction nodes perform period self-adjustment to better represent the detected music beat period. The system is tested using a variety of music from different genres and shows promise, in many cases with high correct beat detection percentages.
This paper presents an algorithm for extraction of phrases from text *** e algorithm builds phrases by iteratively merging bigrams according to an association *** o association measures are presented: mutual informati...
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Cognitive work analysis (CWA) is a relatively new human factors perspective for analyzing complex sociotechnical systems. However, it does not yet have specific tools and techniques that allow it to address teamwork e...
Cognitive work analysis (CWA) is a relatively new human factors perspective for analyzing complex sociotechnical systems. However, it does not yet have specific tools and techniques that allow it to address teamwork explicitly enough to provide good guidance on how to support teams and collaboration. In this paper, Decision Wheels are introduced as an extension to the Decision Ladders for representing collaboration in teamwork environments. This extension would be a significant contribution to both CWA methodology and human factors methods for team situations. It would enable human factors practitioners to understand the cognitive work of teams better, and to design better collaborative systems for teamwork environments.
Cognitive Work Analysis (CWA) is gaining momentum for analyzing complex socio-technical systems but it does not yet have the specific tools and techniques that allow it to address teamwork explicitly enough to provide...
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ISBN:
(纸本)9780945289395
Cognitive Work Analysis (CWA) is gaining momentum for analyzing complex socio-technical systems but it does not yet have the specific tools and techniques that allow it to address teamwork explicitly enough to provide good guidance on how to support teams. This paper focuses on expansion of control task analysis (ConTA) the second phase of CWA to understand the collaborative decision making of a surgical team during Cesarean section surgery. Copyright 2011 by Human Factors and Ergonomics Society, Inc. All rights reserved.
The abstraction hierarchy (Rasmussen, 1985) is a modelling framework proposed for the design of displays to aid problem-solving. The model links information along two dimensions - means-end links of abstraction, and p...
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The abstraction hierarchy (Rasmussen, 1985) is a modelling framework proposed for the design of displays to aid problem-solving. The model links information along two dimensions - means-end links of abstraction, and part-whole links of decomposition. While these links connect the model, little research has directly explored the perceptual support of these links. Based on one abstraction hierarchy for a simulated power plant, we designed three graphical displays that provided differential perceptual support for means-end links. The displays provided space-time, only spatial, or only temporal integration of means-end links. Subjects performed a link-spanning information search task using one of the displays. Significant differences were found in search accuracy and in the types of errors that occurred when using the three displays. This research sheds light on the integration of means-end information in ecological displays and demonstrates a novel information search task for evaluating large ecological displays.
This paper presents the robotic vision technologies newly developed for satellites and space station robotic applications at the Pattern Analysis and Machine Intelligence (PAMI) laboratory of the university of Waterlo...
This paper presents the robotic vision technologies newly developed for satellites and space station robotic applications at the Pattern Analysis and Machine Intelligence (PAMI) laboratory of the university of waterloo and at the Vision, Intelligence and Robotics Technologies Corp. (VIRTEK). The first part of the paper presents how the PAMI-VIRTEK Vision technologies are engineered to support the STEAR (Space Station, Strategic Technologies in Automation and Robotics Program) sponsored by the Canadian Space Agency. The second describes the use of stereo CCD camera for sensing the deformed shape of a third generation satellite. It addresses the notion of shape interpolation and error reduction.
Image-Based Localization (IBL) is the problem of estimating the 3D pose of a camera with respect to a 3D representation of the scene. IBL is quite challenging in large-scale environments spanning a wide variety of vie...
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A flight simulation study was conducted to examine the effect of a visual display of flight time and distance added to a pathway prediction symbology on pilot's flight time management. Twelve participants flew a s...
A flight simulation study was conducted to examine the effect of a visual display of flight time and distance added to a pathway prediction symbology on pilot's flight time management. Twelve participants flew a standard flight path with a time-constrained landing task. Some conditions such as flight under various wind and visibility levels, or instrumentation failures were also applied to the flight tests to measure performance in more challenging conditions. We measured flight's time error as our measure in this study. The results showed that participants flew more accurate flights and landed closer to the required landing time with the visual display particularly under challenging conditions. We concluded that the enhancements made to the pathway prediction display by adding the time-distance gauge supported improved flight time management and flight control.
This paper presents a Bayes document classifier using phrases as *** e phrases are extracted using a grammar that iteratively applies the rules to the sequence of words in the document. This grammar is generated from ...
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