Page 1. An Integrated Data Mining System for Patient Monitoring with Applications on Asthma Care ... more Page 1. An Integrated Data Mining System for Patient Monitoring with Applications on Asthma Care Vincent S. Tseng Chao-Hui Lee Jessie Chia-Yu Chen Department of Computer Science and Information Engineering, National ...
Proceedings of the 4th ACM/IEEE international conference on Human robot interaction - HRI '09, 2009
... Jessie YC Chen US Army Research Laboratory-HRED 12423 Research Parkway Orlando, FL 32826 1-40... more ... Jessie YC Chen US Army Research Laboratory-HRED 12423 Research Parkway Orlando, FL 32826 1-407-384-5435 jessie.chen@us.army.mil ... robot?' For the memory tests, the participants were asked to repeat some short statements or keep track of three radio call signs (eg ...
2010 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI), 2010
ABSTRACT We simulated a military reconnaissance environment and examined the performance of groun... more ABSTRACT We simulated a military reconnaissance environment and examined the performance of ground robotics operators who were instructed to utilize streaming video from an unmanned aerial vehicle to navigate his/her ground robot to the locations of the targets. We evaluated participants' spatial ability and examined if it affected their performance or perceived workload. Results showed that participants with higher spatial ability performed significantly better in target-mapping performance and reported less workload than those with lower spatial ability. Participants with poor sense-of-direction performed significantly worse in the target search task in the night condition compared with those with better sense-of-direction.
... Jessie YC Chen ... Based on Mitchell's modeling work, Chen and Joyner (2009) conduct... more ... Jessie YC Chen ... Based on Mitchell's modeling work, Chen and Joyner (2009) conducted a simulation experiment and the results showed that, when the robotics operator had to perform robot targeting and local security (ie gunner's tasks) at the same time, both workload and ...
2010 International Symposium on Collaborative Technologies and Systems, 2010
Autonomous teams of robotic vehicles are gaining significant importance in military applications ... more Autonomous teams of robotic vehicles are gaining significant importance in military applications in the realm of reconnaissance and the execution of vital tasks. As teams of robotic vehicles grow in size and mission complexity, ever increasing burden is placed on the human operators charged with overseeing such operations. It is imperative that, in order to increase future mission complexity and
Accuracy of shifting movements between two notes was examined in nine cellists (intermediate-prof... more Accuracy of shifting movements between two notes was examined in nine cellists (intermediate-professional skill levels). Three pairs of notes separated by different distances were tested under the same movement rate. Finger position on the string was measured by a circuit. Angular velocities of the left upper arm and forearm were measured by two angular velocity sensors; thus elbow angular velocity during shifts was estimated. Results showed that with increased elbow velocity and shifting distance endpoint variability stayed constant. The force of gravity assisted elbow extension during shifts toward higher pitched notes compared to flexion towards lower pitched notes, but faster movement velocity did not result in increased landing variability. Performance for note E on the A string was found to be less variable than other notes, suggesting that physical cue from the cello body geometry was used as a landmark for finger position. Cutaneous feedback from the thumb when hitting the body-neck junction enabled faster elbow extension velocity compared to shifts towards other notes. Cellists who showed higher performance accuracy also showed higher perceptual ability and performance proficiency. These results suggest that long-term over-training of fast and accurate movements enables musicians to maintain accuracy and variability across different movement distances and velocities. Higher perceptual ability and performance proficiency are correlated with increased accuracy but not lower variability, indicating although perceptual ability and performance proficiency are important for pitch accuracy, movement variability is still constrained by the capacity of the motor system, which is highly fine-tuned and different than non-musicians.
Studies of hand manipulation neurons in posterior parietal cortex of monkeys suggest that their s... more Studies of hand manipulation neurons in posterior parietal cortex of monkeys suggest that their spike trains represent objects by the hand postures needed for grasping or by the underlying patterns of muscle activation. To analyze the role of hand kinematics and object properties in a trained prehension task, we correlated the firing rates of neurons in anterior area 5 with hand behaviors as monkeys grasped and lifted knobs of different shapes and locations in the workspace. Trials were divided into four classes depending on the approach trajectory: forward, lateral, and local approaches, and regrasps. The task factors controlled by the animal-how and when he used the hand-appeared to play the principal roles in modulating firing rates of area 5 neurons. In all, 77% of neurons studied (58/75) showed significant effects of approach style on firing rates; 80% of the population responded at higher rates and for longer durations on forward or lateral approaches that included reaching, wrist rotation, and hand preshaping prior to contact, but only 13% distinguished the direction of reach. The higher firing rates in reach trials reflected not only the arm movements needed to direct the hand to the target before contact, but persisted through the contact, grasp, and lift stages. Moreover, the approach style exerted a stronger effect on firing rates than object features, such as shape and location, which were distinguished by half of the population. Forty-three percent of the neurons signaled both the object properties and the hand actions used to acquire them. However, the spread in firing rates evoked by each knob on reach and no-reach trials was greater than distinctions between different objects grasped with the same approach style. Our data provide clear evidence for synergies between reaching and grasping that may facilitate smooth, coordinated actions of the arm and hand.
ABSTRACT The human factors literature on intelligent systems was reviewed in relation to the foll... more ABSTRACT The human factors literature on intelligent systems was reviewed in relation to the following: efficient human supervision of multiple robots, appropriate human trust in the automated systems, maintenance of human operator's situation awareness, individual differences in human–agent (H-A) interaction, and retention of human decision authority. A number of approaches—from flexible automation to autonomous agents—were reviewed, and their advantages and disadvantages were discussed. In addition, two key human performance issues (trust and situation awareness) related to H–A teaming for multirobot control and some promising user interface design solutions to address these issues were discussed. Some major individual differences factors (operator spatial ability, attentional control ability, and gaming experience) were identified that may impact H-A teaming in the context of robotics control.
... Jessie YC Chen1 and Peter I. Terrence2 1U.S. Army Research Laboratory, Human Research &am... more ... Jessie YC Chen1 and Peter I. Terrence2 1U.S. Army Research Laboratory, Human Research & Engineering Directorate, Orlando, FL 2University of ... Chen and Joyner (2006) found that, when operators performed gunnery and robotics tasks at the same time, both workload and ...
... Jessie YC Chen and Michael J. Barnes US Army Research Laboratory, Human Research & En... more ... Jessie YC Chen and Michael J. Barnes US Army Research Laboratory, Human Research & Engineering Directorate Aberdeen Proving Ground, MD ... This was partially confirmed by Chen and Joyner (2009) with the caveat that other studies showed that those with low PAC ...
Page 1. An Integrated Data Mining System for Patient Monitoring with Applications on Asthma Care ... more Page 1. An Integrated Data Mining System for Patient Monitoring with Applications on Asthma Care Vincent S. Tseng Chao-Hui Lee Jessie Chia-Yu Chen Department of Computer Science and Information Engineering, National ...
Proceedings of the 4th ACM/IEEE international conference on Human robot interaction - HRI '09, 2009
... Jessie YC Chen US Army Research Laboratory-HRED 12423 Research Parkway Orlando, FL 32826 1-40... more ... Jessie YC Chen US Army Research Laboratory-HRED 12423 Research Parkway Orlando, FL 32826 1-407-384-5435 jessie.chen@us.army.mil ... robot?' For the memory tests, the participants were asked to repeat some short statements or keep track of three radio call signs (eg ...
2010 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI), 2010
ABSTRACT We simulated a military reconnaissance environment and examined the performance of groun... more ABSTRACT We simulated a military reconnaissance environment and examined the performance of ground robotics operators who were instructed to utilize streaming video from an unmanned aerial vehicle to navigate his/her ground robot to the locations of the targets. We evaluated participants' spatial ability and examined if it affected their performance or perceived workload. Results showed that participants with higher spatial ability performed significantly better in target-mapping performance and reported less workload than those with lower spatial ability. Participants with poor sense-of-direction performed significantly worse in the target search task in the night condition compared with those with better sense-of-direction.
... Jessie YC Chen ... Based on Mitchell's modeling work, Chen and Joyner (2009) conduct... more ... Jessie YC Chen ... Based on Mitchell's modeling work, Chen and Joyner (2009) conducted a simulation experiment and the results showed that, when the robotics operator had to perform robot targeting and local security (ie gunner's tasks) at the same time, both workload and ...
2010 International Symposium on Collaborative Technologies and Systems, 2010
Autonomous teams of robotic vehicles are gaining significant importance in military applications ... more Autonomous teams of robotic vehicles are gaining significant importance in military applications in the realm of reconnaissance and the execution of vital tasks. As teams of robotic vehicles grow in size and mission complexity, ever increasing burden is placed on the human operators charged with overseeing such operations. It is imperative that, in order to increase future mission complexity and
Accuracy of shifting movements between two notes was examined in nine cellists (intermediate-prof... more Accuracy of shifting movements between two notes was examined in nine cellists (intermediate-professional skill levels). Three pairs of notes separated by different distances were tested under the same movement rate. Finger position on the string was measured by a circuit. Angular velocities of the left upper arm and forearm were measured by two angular velocity sensors; thus elbow angular velocity during shifts was estimated. Results showed that with increased elbow velocity and shifting distance endpoint variability stayed constant. The force of gravity assisted elbow extension during shifts toward higher pitched notes compared to flexion towards lower pitched notes, but faster movement velocity did not result in increased landing variability. Performance for note E on the A string was found to be less variable than other notes, suggesting that physical cue from the cello body geometry was used as a landmark for finger position. Cutaneous feedback from the thumb when hitting the body-neck junction enabled faster elbow extension velocity compared to shifts towards other notes. Cellists who showed higher performance accuracy also showed higher perceptual ability and performance proficiency. These results suggest that long-term over-training of fast and accurate movements enables musicians to maintain accuracy and variability across different movement distances and velocities. Higher perceptual ability and performance proficiency are correlated with increased accuracy but not lower variability, indicating although perceptual ability and performance proficiency are important for pitch accuracy, movement variability is still constrained by the capacity of the motor system, which is highly fine-tuned and different than non-musicians.
Studies of hand manipulation neurons in posterior parietal cortex of monkeys suggest that their s... more Studies of hand manipulation neurons in posterior parietal cortex of monkeys suggest that their spike trains represent objects by the hand postures needed for grasping or by the underlying patterns of muscle activation. To analyze the role of hand kinematics and object properties in a trained prehension task, we correlated the firing rates of neurons in anterior area 5 with hand behaviors as monkeys grasped and lifted knobs of different shapes and locations in the workspace. Trials were divided into four classes depending on the approach trajectory: forward, lateral, and local approaches, and regrasps. The task factors controlled by the animal-how and when he used the hand-appeared to play the principal roles in modulating firing rates of area 5 neurons. In all, 77% of neurons studied (58/75) showed significant effects of approach style on firing rates; 80% of the population responded at higher rates and for longer durations on forward or lateral approaches that included reaching, wrist rotation, and hand preshaping prior to contact, but only 13% distinguished the direction of reach. The higher firing rates in reach trials reflected not only the arm movements needed to direct the hand to the target before contact, but persisted through the contact, grasp, and lift stages. Moreover, the approach style exerted a stronger effect on firing rates than object features, such as shape and location, which were distinguished by half of the population. Forty-three percent of the neurons signaled both the object properties and the hand actions used to acquire them. However, the spread in firing rates evoked by each knob on reach and no-reach trials was greater than distinctions between different objects grasped with the same approach style. Our data provide clear evidence for synergies between reaching and grasping that may facilitate smooth, coordinated actions of the arm and hand.
ABSTRACT The human factors literature on intelligent systems was reviewed in relation to the foll... more ABSTRACT The human factors literature on intelligent systems was reviewed in relation to the following: efficient human supervision of multiple robots, appropriate human trust in the automated systems, maintenance of human operator's situation awareness, individual differences in human–agent (H-A) interaction, and retention of human decision authority. A number of approaches—from flexible automation to autonomous agents—were reviewed, and their advantages and disadvantages were discussed. In addition, two key human performance issues (trust and situation awareness) related to H–A teaming for multirobot control and some promising user interface design solutions to address these issues were discussed. Some major individual differences factors (operator spatial ability, attentional control ability, and gaming experience) were identified that may impact H-A teaming in the context of robotics control.
... Jessie YC Chen1 and Peter I. Terrence2 1U.S. Army Research Laboratory, Human Research &am... more ... Jessie YC Chen1 and Peter I. Terrence2 1U.S. Army Research Laboratory, Human Research & Engineering Directorate, Orlando, FL 2University of ... Chen and Joyner (2006) found that, when operators performed gunnery and robotics tasks at the same time, both workload and ...
... Jessie YC Chen and Michael J. Barnes US Army Research Laboratory, Human Research & En... more ... Jessie YC Chen and Michael J. Barnes US Army Research Laboratory, Human Research & Engineering Directorate Aberdeen Proving Ground, MD ... This was partially confirmed by Chen and Joyner (2009) with the caveat that other studies showed that those with low PAC ...
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