Computer User Profiling Based on Keystroke Analysis

2015 ◽  
pp. 3-13 ◽  
Author(s):  
Tomasz Emanuel Wesołowski ◽  
Piotr Porwik
Keyword(s):  
User Profiling ◽  
Computer User ◽  
Keystroke Analysis

A Real Time Attachment Free, Psycho Physiological Stress and Heart Rate Measurement System

2011 ◽  
Vol 1 (2) ◽  
pp. 1-13 ◽  
Author(s):  
Anthony Psaltis ◽  
Constantinos Mourlas
Keyword(s):  
Real Time ◽  
Physiological Stress ◽  
Emotional Responses ◽  
User Profiling ◽  
Computer User ◽  
Web Based ◽  
Computer Mouse ◽  
Educational Environments ◽  
E Learning ◽  
Improve Reliability

The challenges in the development of a system performing real time detection of physiological parameters are fundamentally aversive because of the incommodities caused by the wires and sensing attachments onto the user, making the measurement sessions uncomfortable. Another factor is that the sensing accessories influence the plausibility of the measurements. In this paper, the authors introduce a system based on a device that can acquire physiological signals from a computer user with no prerequisites, postural, kinetic, or other constraints in the environment of normal usage of the home computer for the detection of their psychosomatic state and optimally their affect and emotional responses. The authors also discuss issues that could otherwise compromise the credibility of the results. Redundancy and special adaptive and corrective algorithms have been developed to improve reliability and achieve acceptable standards of quality. Measurements include skin conductance (SC) and reart rate (HR) detected by sensors positioned on the vertical sides of a computer mouse. The system is intended for interactive educational environments, during assessment, e-learning, psychosomatic user profiling, mobile and web based interfaces, and for Human Computer Interaction (HCI) platforms.

Computer User Self-Efficacy Scale

2002 ◽  
Author(s):  
Simon Cassidy ◽  
Peter Eachus
Keyword(s):  
Self Efficacy ◽  
Computer User

Construct validity studies for the draw-a-computer user test

1992 ◽  
Vol 8 (2-3) ◽  
pp. 231-237 ◽  
Author(s):  
Robertta H. Barba ◽  
Cheryl L. Mason
Keyword(s):  
Construct Validity ◽  
Computer User ◽  
User Test ◽  
Validity Studies

Model of an intelligent smart home system based on ambient intelligence and user profiling

2021 ◽  
Author(s):  
Igor Đuric ◽  
Dusan Barac ◽  
Zorica Bogdanovic ◽  
Aleksandra Labus ◽  
Bozidar Radenkovic
Keyword(s):  
Smart Home ◽  
Ambient Intelligence ◽  
User Profiling

Degree program planned in computer user support

3C ON-LINE ◽  
1995 ◽  
Vol 2 (2) ◽  
pp. 18-19
Author(s):  
Fred Beisse
Keyword(s):  
Degree Program ◽  
Computer User ◽  
User Support

scholarly journals Desktop lighting for comfortable use of a computer screen

Work ◽  
2021 ◽  
Vol 68 (s1) ◽  
pp. S209-S221
Author(s):  
Lu Han ◽  
Hechen Zhang ◽  
Zhongxia Xiang ◽  
Jinze Shang ◽  
Shabila Anjani ◽  
...  
Keyword(s):  
High Intensity ◽  
Motion Tracking ◽  
Tracking System ◽  
Computer User ◽  
Eye Tracker ◽  
Computer Screen ◽  
Task Load ◽  
Trunk Movements ◽  
Motion Tracking System ◽  
Nasa Task Load Index

BACKGROUND: The contrast between a bright computer screen and a dark ambient environment may influence comfort of the users, especially on their eyes. OBJECTIVE: The objective of this research is to identify the optimal desktop lighting for the comfortable use of the computer screen in a dark environment. METHODS: An experiment was designed where seven illumination setups were introduced for the users to perform their leisure tasks on a computer screen. Fifteen healthy subjects participated in the experiments. During each session, durations of the eye blinks, fixations and saccades of the user were recorded by an eye tracker. His/her neck and trunk movements were recorded by a motion tracking system as well. The comfort/discomfort questionnaire, localized postural discomfort questionnaire, NASA task load index and computer user questionnaire were used to record the overall comfort/discomfort, the local perceived physical discomfort, the cognitive workload, and general/eye health problems, respectively. RESULTS: Subjective and objective measurement results indicated that users felt more comfortable with high intensity warm lights using a computer screen. We also identified that the eye fixation durations, as well as the scores of two questions in the computer user questionnaire, have significant negative correlations with comfort. On the other side, the durations of blinks and the scores of three questions in the computer user questionnaire, were significantly correlated with discomfort. CONCLUSION: The warm (3000K) and high intensity (1500 lux) light reduced the visual and cognitive fatigue of the user and therefore improve the comfort of the user during the use of a computer screen.

Optimized recommendations by user profiling using apriori algorithm

2021 ◽  
pp. 107272
Author(s):  
Pradeep Kumar Singh ◽  
Esam Othman ◽  
Rafeeq Ahmed ◽  
Awais Mahmood ◽  
Habib Dhahri ◽  
...  
Keyword(s):  
User Profiling ◽  
Apriori Algorithm
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