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54
Understanding Changes in Mental Workload During Execution of Goal-directed Tasks and Its Application for Interruption Management
"... Interruptions can have lower cost if delivered at moments of lower mental workload during task execution, and cognitive theorists have speculated that these moments occur at subtask boundaries. In this article, we empirically test this speculation by examining how workload changes during task execut ..."
Abstract
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Cited by 61 (5 self)
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Interruptions can have lower cost if delivered at moments of lower mental workload during task execution, and cognitive theorists have speculated that these moments occur at subtask boundaries. In this article, we empirically test this speculation by examining how workload changes during task
Towards an Index of Opportunity: Understanding Changes in Mental Workload during Task Execution
- In Proc of CHI 2005, ACM Press
, 2005
"... To contribute to systems that reason about human attention, our work empirically demonstrates how a user’s mental workload changes during task execution. We conducted a study where users performed interactive, hierarchical tasks while mental workload was measured through the use of pupil size. Resul ..."
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Cited by 66 (12 self)
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. Results show that (i) different types of subtasks impose different mental workload, (ii) workload decreases at subtask boundaries, (iii) workload decreases more at boundaries higher in a task model and less at boundaries lower in the model, (iv) workload changes among subtask boundaries within the same
2006) Unsupervised Multilingual Sentence Boundary Detection
- Proceedings of IICS-04, Guadalajara, Mexico and Springer LNCS 3473
"... In this article, we present a language-independent, unsupervised approach to sentence boundary detection. It is based on the assumption that a large number of ambiguities in the determination of sentence boundaries can be eliminated once abbreviations have been identified. Instead of relying on orth ..."
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Cited by 80 (0 self)
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word and a final period, abbreviations are usually short, and abbreviations sometimes contain internal periods. We also show the potential of collocational evidence for two other important subtasks of sentence boundary disambiguation, namely the detection of initials and ordinal numbers. The proposed
Strategic adaptation to performance objectives in a dual-task setting
- Cognitive science
, 2010
"... driving; performance trade‐offs, performance operating characteristicDual‐Task Strategy Adaptation 2 How do people interleave attention when multitasking? One dominant account is that the completion of a subtask serves as a cue to switch tasks. But what happens if switching solely at subtask boundar ..."
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Cited by 10 (4 self)
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boundaries led to poor performance? We report a study in which participants manually dialed a UK‐style telephone number while driving a simulated vehicle. If the driver were to exclusively return their attention to driving after completing a subtask (i.e., using the single break in the xxxxx
GENERAL TERMS
"... To contribute to systems that reason about human attention, our work empirically demonstrates how a user’s mental workload changes during task execution. We conducted a study where users performed an interactive hierarchical task and measured mental workload through the use of pupil size. Results sh ..."
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show that (i) different types of subtasks impose different mental workload, (ii) workload decreases at subtask boundaries, and (iii) effective understanding of why changes in workload occur requires that the measure of workload be tightly coupled to a validated task model.
1 Leveraging Changes in Mental Workload during Task Execution to Mitigate Effects of Interruption
"... Task interruption often has a significant negative impact on a user’s productivity and affective state. Cognitive theorists have argued that interrupting the execution of primary tasks at moments of lower mental workload would mitigate effects of interruption, yet knowing just where these moments oc ..."
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at subtask boundaries during task execution; (ii) workload decreases more at boundaries higher in a task model than at boundaries lower in a model; (iii) the decrease in workload is not uniform within the same level of a model; and (iv) interrupting task execution at subtask boundaries with lower workload
Dedication
"... The effects of sub-task boundaries and time on task interleaving in the driving environment ..."
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The effects of sub-task boundaries and time on task interleaving in the driving environment
A Floor Boundary Sensor for Autonomous Robot Navigation
- In Int. Joint Conf. on Artificial Intelligence, 12th IJCAI
, 1991
"... Simple indoor navigation subtasks, such as moving an autonomous platform robot in a corridor parallel to a wall or correcting its trajectory to avoid small obstacles, can be accomplished using reflexive behaviours, without the need of a navigation planner. We describe a dynamic vision module in whic ..."
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Simple indoor navigation subtasks, such as moving an autonomous platform robot in a corridor parallel to a wall or correcting its trajectory to avoid small obstacles, can be accomplished using reflexive behaviours, without the need of a navigation planner. We describe a dynamic vision module
1 Leveraging Characteristics of Task Structure to Predict the Cost of Interruption
"... A challenge in building interruption reasoning systems is to compute an accurate cost of interruption (COI). Prior work has used non task-specific cues to predict COI, but ignore characteristics related to the structure of a task. This work investigates how well characteristics of task structure can ..."
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can predict COI, as objectively measured by resumption lag. In an experiment, users were interrupted during task execution at various subtask boundaries to collect a large sample of resumption lag values. Statistical methods were employed to create a parsimonious model that uses characteristics
Unsupervised Multilingual Sentence Boundary Detection Tibor Kiss ∗
"... In this article, we present a language-independent, unsupervised approach to sentence boundary detection. It is based on the assumption that a large number of ambiguities in the determination of sentence boundaries can be eliminated once abbreviations have been identified. Instead of relying on orth ..."
Abstract
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period, abbreviations are usually short, and abbreviations sometimes contain internal periods. We also show the potential of collocational evidence for two other important subtasks of sentence boundary disambiguation, namely, the detection of initials and ordinal numbers. The proposed system has been
Results 1 - 10
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54
