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Detecting low-quality crowdtesting workers

Ricky K. P. Mok, Weichao Li, Rocky K. C. Chang
2015 2015 IEEE 23rd International Symposium on Quality of Service (IWQoS)  
One of the approaches in classifying the quality of workers is analyzing their behavior during the experiments. A major challenge is to systematically analyze the mouse cursor trajectory.  ...  Our results show that the error rates of the model trained from four metrics is equal or less than 30% for four rating methods.  ...  These metrics are useful, but we argue that the mouse cursor movement is also very important in measuring the quality of workers.  ... 
doi:10.1109/iwqos.2015.7404734 dblp:conf/iwqos/MokLC15 fatcat:6odnxyti6re7hntbmrwpendz7y

Novel metrics for 3D remote pointing

Steven J. Castellucci, Robert J. Teather, Andriy Pavlovych
2013 Proceedings of the 1st symposium on Spatial user interaction - SUI '13  
We introduce new metrics to help explain 3D pointing device movement characteristics. We present a study to assess these by comparing two cursor control modes using a Sony PS Move.  ...  "Laser" mode used ray casting, while "position" mode mapped absolute device movement to cursor position.  ...  The first four metrics are discrete measures. Target Re-Entry (TRE) is the number of times the cursor re-entered the target.  ... 
doi:10.1145/2491367.2491373 dblp:conf/sui/CastellucciTP13 fatcat:bwlvt53bmjf6vdxorqvvbnp7re

Interaction techniques using prosodic features of speech and audio localization

Alex Olwal, Steven Feiner
2005 Proceedings of the 10th international conference on Intelligent user interfaces - IUI '05  
We discuss how characteristics of spoken sentences can be exploited in the user interface; for example, by considering the speed with which a sentence is spoken and the presence of extraneous utterances  ...  We also show how coarse audio localization can be used for low-fidelity gesture tracking, by inferring the speaker's head position.  ...  We introduce methods for speech-based cursor control and 3D manipulation that use these metrics. After describing our nonverbal metrics, we present our conclusions and plans for future work.  ... 
doi:10.1145/1040830.1040900 dblp:conf/iui/OlwalF05 fatcat:lrnkadxk7jgf7nleyhaehxbwxy

Model-Based Prediction of Operation Consequences When Driving a Car to Compensate for a Partially Restricted Visual Field by A-Pillars

Sayako Ueda, Toshihisa Sato, Takatsune Kumada
2021 Frontiers in Human Neuroscience  
In the tracking task, participants tracked a moving target on a computer screen with visible and invisible cursors.  ...  The partial restriction of a driver's visual field by the physical structure of the car (e.g., the A-pillar) can lead to unsafe situations where steering performance is degraded.  ...  restricting the view of the distant part of the road compromises the steering smoothness metric but not the accuracy metric.  ... 
doi:10.3389/fnhum.2021.697295 pmid:34803628 pmcid:PMC8600357 fatcat:uaabsgl7zvb45hih2yrifu7yfe

An Exploration of Cursor tracking Data [article]

David Warnock, Mounia Lalmas
2015 arXiv   pre-print
The effects of website aesthetics, user interest and cursor hardware were also analysed which showed it was possible to identify hardware from cursor data, but no relationship between cursor data and engagement  ...  The results showed that it was possible to differentiate between users reading content and users looking for information based on cursor data.  ...  Cursor Metrics Rodden et al.  ... 
arXiv:1502.00317v2 fatcat:pkzlugzlnzedzijpyhmirp76ba

Aperture based selection for immersive virtual environments

Andrew Forsberg, Kenneth Herndon, Robert Zeleznik
1996 Proceedings of the 9th annual ACM symposium on User interface software and technology - UIST '96  
These techniques advance the state of the art in that they exploit the participant's visual frame of reference and fully utilize the position and orientation data from the tracker to improve accuracy of  ...  the selection task.  ...  ACKNOWLEDGMENTS We thank the support of Andries van Dam and the Graphics Group as well as our sponsors: grants from NASA, NSF, Microsoft, Sun and Taco; hardware from SGI, Hewlett-Packard, Sun and Microsoft  ... 
doi:10.1145/237091.237105 dblp:conf/uist/ForsbergHZ96 fatcat:sme76bzkrfa7tgmziehjodtrgm

Upper Limb Motor Skills Performance Evaluation Based on Point-and-Click Cursor Trajectory Analysis: Application in Early Multiple Sclerosis Detection

Nikolaos Papatheodorou, Alexandros Pino, Georgios Kouroupetroglou, Vasilios Constantinides, Elisabeth Andreadou, Charalambos Papageorgiou
2019 IEEE Access  
By introducing three new metrics for mouse cursor trajectory analysis, along with the application of the two-dimensional (2D) experiment in the case of multiple sclerosis (MS), we examine the sensitivity  ...  The IDEA system calculates multiple kinematic metrics for point-and-click tasks: movement time, index of difficulty, effective target width, effective index of difficulty, throughput, missed clicks, target  ...  The five metrics above characterize the cursor path by logging discrete events, and they are scalars.  ... 
doi:10.1109/access.2019.2901926 fatcat:2w7th3m4xbdynaj26iltvbmdcy

Splittings and the asymptotic topology of the lamplighter group [article]

Panos Papasoglu
2009 arXiv   pre-print
Answering a question of Kleiner we show that the Cayley graph of the lamplighter group is coarsely separated by quasi-circles.  ...  Let (X, d) be a geodesic metric space. If R ⊂ X is path connected subset of X, we denote the path metric of R by d R .  ...  Elements of the lamplighter group and metric properties. It is convenient to represent elements of L geometrically: We consider bi-infinite words of 0, 1's indexed by Z and a cursor.  ... 
arXiv:0911.0186v1 fatcat:uiqfkjqrxnb4vgzeeuk74sfsgy

WiiPD—Objective Home Assessment of Parkinson's Disease Using the Nintendo Wii Remote

Jonathan Synnott, Liming Chen, C. D. Nugent, G. Moore
2012 IEEE Transactions on Information Technology in Biomedicine  
In this paper, we detail the approach and introduce a series of metrics deemed capable of quantifying the severity of tremor and bradykinesia in those with PD.  ...  metrics gathered frequently over extended periods of time.  ...  ACKNOWLEDGMENT The authors would like to thank the volunteers who kindly offered their time, support, and feedback throughout the study.  ... 
doi:10.1109/titb.2012.2215878 pmid:22949085 fatcat:4jxid2cjbvhmblyrutyb7lfbeq

Requirements as Conjectures: Intuitive DVD Menu Navigation [chapter]

Jemima Rossmorris, Susan Stepney
2005 Lecture Notes in Computer Science  
The Z formalisation enables the somewhat fuzzy requirement of 'being intuitive' to be captured precisely, analysed, and critiqued, leading to possibly new requirements, and more intuitive algorithms.  ...  In this paper we use Z to capture the requirements for an 'intuitive' menu navigation system as a series of conjectures that should hold.  ...  Whyte of ANT Ltd. for bringing the very real problem of DVD navigation menus to our attention, and the anonymous referees for helpful comments.  ... 
doi:10.1007/11415787_11 fatcat:3rjdfz6xczfr7jv5ugjr5mzyrq

A real-time comparison between direct control, sequential pattern recognition control and simultaneous pattern recognition control using a Fitts' law style assessment procedure

Sophie M Wurth, Levi J Hargrove
2014 Journal of NeuroEngineering and Rehabilitation  
Subjects were prompted to steer a cursor from the screen center of into a series of subsequently appearing targets of different difficulties.  ...  The direct control was efficient in one-DOF targets but cumbersome to operate in two-DOF targets through a switch-depended sequential cursor control.  ...  They would also like to acknowledge Ann Barlow for critically revising the drafted manuscript.  ... 
doi:10.1186/1743-0003-11-91 pmid:24886664 pmcid:PMC4050102 fatcat:7574ie6yovgalpxn6trcr5wd2a

Novel postural control algorithm for control of multifunctional myoelectric prosthetic hands

Jacob L. Segil, Weir
2015 Journal of rehabilitation research and development  
In the first experiment, we found that performance increased when a velocity cursor-control technique versus a position cursor-control technique was used.  ...  The myoelectric controller (MEC) remains a technological bottleneck in the development of multifunctional prosthetic hands.  ...  Experiment B testing session performance metrics averaged over days for each subject (S). * p < 0.05. activity (i.e., rest) equates to the PC cursor coordinate position at the origin.  ... 
doi:10.1682/jrrd.2014.05.0134 pmid:26348320 pmcid:PMC4666529 fatcat:dekljuzwafdenp6hgem4hfz6za

Multi-state decoding of point-and-click control signals from motor cortical activity in a human with tetraplegia

Sung-Phil Kim, John D. Simeral, Leigh R. Hochberg, John P. Donoghue, Gerhard M. Friehs, Michael J. Black
2007 2007 3rd International IEEE/EMBS Conference on Neural Engineering  
While these results demonstrate the feasibility of intracortically-driven prostheses for humans with paralysis, a practical cursor-based computer interface requires more precise cursor control and the  ...  Basic neural prosthetic control of a computer cursor has been recently demonstrated by Hochberg et al. [1] using the BrainGate system (Cyberkinetics Neurotechnology Systems, Inc.).  ...  ACKNOWLEDGMENT We thank Abe Caplan and Michael Fritz of Cyberkinetics Neurotechnology Systems, Inc. for running the clinical trials and providing the human neural data analyzed here.  ... 
doi:10.1109/cne.2007.369715 fatcat:qmtijrrslrgnbhje34hhnbikk4

Target reverse crossing

Wenxin Feng, Ming Chen, Margrit Betke
2014 Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments - PETRA '14  
We assessed the method by comparing it to the selection mechanism "dwell-time clicking," which is widely used by camera-based mouse-replacement systems.  ...  We also show that increasing the target size improves the performance of reverse crossing significantly, which provides future interface design implications for this selection method.  ...  Enhanced cursors, for example, the bubble cursor [9] and the area cursor [6] , will also be tested with the mousereplacement systems.  ... 
doi:10.1145/2674396.2674443 dblp:conf/petra/FengCB14 fatcat:sehkygzn4vfgdohxywueqsl25e

Incorporating Feedback from Multiple Sensory Modalities Enhances Brain-Machine Interface Control

A. J. Suminski, D. C. Tkach, A. H. Fagg, N. G. Hatsopoulos
2010 Journal of Neuroscience  
Using an exoskeletal robot, the monkey's arm was moved to passively follow a cortically controlled visual cursor, thereby providing the monkey with kinesthetic information about the motion of the cursor  ...  We demonstrate for the first time that kinesthetic feedback can be used together with vision to significantly improve control of a cursor driven by neural activity of the primary motor cortex (MI).  ...  The thresholds for elimination of trials were as follows: (1) hand led BMI cursor by Ͼ0 ms (red line; metric used other analyses), (2) hand led BMI cursor by Ͼ25 ms (dashed red line), (3) hand led cursor  ... 
doi:10.1523/jneurosci.3967-10.2010 pmid:21159949 pmcid:PMC3046069 fatcat:cblysh4i5net5oaqo5rtimgrwa
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