Current Issues in Subjective Assessment of Workload

1981 ◽  
Vol 25 (1) ◽  
pp. 513-517 ◽  
Author(s):  
F. Thomas Eggemeier
Keyword(s):  
Subjective Experience ◽  
Recent Literature ◽  
Subjective Assessment ◽  
Assessment Procedure ◽  
Assessment Methodology ◽  
Subjective Measures ◽  
Practical Utility ◽  
Subjective Workload ◽  
Assessment Techniques

Because of their practical utility, subjective measures have been widely used as workload assessment techniques. There has also been increased support in the recent literature for the importance of including subjective measures as part of a comprehensive workload assessment methodology. In spite of the widespread use and importance of subjective techniques, several significant issues which pertain to their development and use remain unresolved. One such issue is related to the development of a generalized subjective workload assessment procedure, while a second issue concerns the need to identify factors or variables that contribute to the subjective experience of workload. This paper discusses both issues and outlines some recent research which is applicable to each area.

Development of Risk Assessment Methodology for Occupational Safety in Using Work Observation Technique

2012 ◽  
Author(s):  
Takeshi Shinoda ◽  
Takashi Tanaka
Keyword(s):  
Risk Assessment ◽  
Working Conditions ◽  
Occupational Safety ◽  
Occupational Accidents ◽  
Assessment Procedure ◽  
Assessment Methodology ◽  
Quantitative Methodology ◽  
The Past ◽  
Walking Environment ◽  
Risk Assessment Methodology

It is a challenge to prevent an occupational accident in any industrial activities. The aim of this study is to improve the safety and reduce the risk of occupational accidents at shipyard through developing a risk assessment. This paper describes the concept and methodology of risk assessment for occupational safety and its application. The methodology introduces an effective and useful assessment procedure to construct the database based on the past occupational accidents occurred at shipyards. Quantitative methodology is developed to understand the unsafe working conditions and environment at the shipyard by the convenient handheld to collect the data with Information Technology. Some examples of effective hazard countermeasures are suggested and a feasibility study is conducted to improve a walking environment at shipyards.

scholarly journals UX in AR-Supported Industrial Human–Robot Collaborative Tasks: A Systematic Review

2021 ◽  
Vol 11 (21) ◽  
pp. 10448
Author(s):  
Riccardo Karim Khamaisi ◽  
Elisa Prati ◽  
Margherita Peruzzini ◽  
Roberto Raffaeli ◽  
Marcello Pellicciari
Keyword(s):  
Augmented Reality ◽  
Industrial Revolution ◽  
New Technologies ◽  
Recent Literature ◽  
Modern Human ◽  
Assessment Procedure ◽  
Functional Requirements ◽  
Collaborative Robotics ◽  
Fourth Industrial Revolution ◽  
Standardization Process

The fourth industrial revolution is promoting the Operator 4.0 paradigm, originating from a renovated attention towards human factors, growingly involved in the design of modern, human-centered processes. New technologies, such as augmented reality or collaborative robotics are thus increasingly studied and progressively applied to solve the modern operators’ needs. Human-centered design approaches can help to identify user’s needs and functional requirements, solving usability issues, or reducing cognitive or physical stress. The paper reviews the recent literature on augmented reality-supported collaborative robotics from a human-centered perspective. To this end, the study analyzed 21 papers selected after a quality assessment procedure and remarks the poor adoption of user-centered approaches and methodologies to drive the development of human-centered augmented reality applications to promote an efficient collaboration between humans and robots. To remedy this deficiency, the paper ultimately proposes a structured framework driven by User eXperience approaches to design augmented reality interfaces by encompassing previous research works. Future developments are discussed, stimulating fruitful reflections and a decisive standardization process.

scholarly journals Biomechanical evaluation of SACH and uniaxial feet

1984 ◽  
Vol 8 (3) ◽  
pp. 147-154 ◽  
Author(s):  
J. C. H. Goh ◽  
S. E. Solomonidis ◽  
W. D. Spence ◽  
J. P. Paul
Keyword(s):  
Evaluation Method ◽  
Three Dimensional ◽  
Subjective Assessment ◽  
The United States ◽  
Whole Body ◽  
Assessment Procedure ◽  
Clear Trend ◽  
Gait Kinematics ◽  
Biomechanical Evaluation ◽  
Set Up

A review of prosthetic prescription practice reveals that in the United Kingdom about 85% of below and above-knee amputees are fitted with uniaxial feet, whereas in the United States about 80% are fitted with SACH feet. An evaluation method was developed to assess the performance of these two different types of feet. This included a subjective assessment procedure and a biomechanical evaluation of the function of the two feet and their effects on whole body gait kinematics and lower limb kinetics. Data were acquired by three Bolex H16 cine cameras and two Kistler force plates. This set-up allowed three-dimensional analysis on the prosthetic and contralateral sides of the subject. Investigations were undertaken in which an experimental prosthesis permitted the interchange of the ankle/foot while keeping the rest of the components the same. Altogether, six below knee and five above knee amputees were tested. No clear trend for preference for either type of foot was evident from the subjective survey; in general the patients showed a preference for the foot that they were accustomed to. Kinematic and kinetic analysis showed some differences in the function between the two prosthetic feet. It is the purpose of this paper to discuss these differences and their significance.

The Further Development of National Safety Assessment Standard for In-Service Pressure Equipment Containing Defects

2013 ◽  
Author(s):  
Shanshan Shao ◽  
Guodong Jia ◽  
Liang Sun ◽  
Hui Wang
Keyword(s):  
Economic Performance ◽  
Safety Assessment ◽  
Standard System ◽  
National Standard ◽  
Assessment Procedure ◽  
Assessment Techniques ◽  
International Structure ◽  
Assessment Standard ◽  
Further Development

The fitness-for-service assessment is widely used to demonstrate whether identified defects or in-service deterioration threaten the structure integrity of the pressure equipment. This article introduces the development of the Chinese national safety assessment standard. The assessment procedure and assessment techniques of current Chinese national safety assessment standard GB/T 19624-2004 are demonstrated, and the improvement is proposed. In order to maintain availability of aging equipment and enhance the long-term economic performance of in service pressure equipment, a new Chinese national safety assessment standard system is methodology proposed based on the analysis of some international structure integrity procedures or standards. A new national standard fitness-for-service which focuses on the evaluation of in-service damage and degeneration will be established while GB/T 19624 is applicable for general defects.

Construction Contract Quality Warranties: Hybrid Quality Assessment Model

2003 ◽  
Vol 1861 (1) ◽  
pp. 60-70
Author(s):  
Yassir AbdelRazig ◽  
Luh-Maan Chang
Keyword(s):  
Construction Industry ◽  
Hybrid Model ◽  
Subjective Assessment ◽  
External Factors ◽  
Assessment Model ◽  
Steel Bridge ◽  
Quality Inspection ◽  
Infrastructure Management ◽  
Training Stage ◽  
Assessment Techniques

The term "quality" is defined as the conformance to predetermined requirements or specifications. These requirements may be simple or complex. They may be set in terms of the end result required or as a detailed description of how work should be executed. Recently, there has been increasing interest in quality assurance in the construction industry. Most current techniques used in infrastructure assessment and quality inspection rely merely on subjective criteria. Such inaccurate or subjective assessment techniques have been identified as critical obstacles to effective infrastructure management. An overview of contract quality warranties for steel bridge coatings is presented as a practical example, and a hybrid assessment model that can be used to quantitatively measure quality attributes is proposed. The hybrid model combines image processing and neural networks for defect (specifically, rust) recognition and measurement and uses statistical analysis for quality acceptance or rejection on the basis of the contract warranty clauses. The hybrid model incorporates human experience through the training stage to benefit from experts’ knowledge and to correct for other external factors.

scholarly journals Mapping Invasive Plant Species with Hyperspectral Data Based on Iterative Accuracy Assessment Techniques

2021 ◽  
Vol 14 (1) ◽  
pp. 64
Author(s):  
Anita Sabat-Tomala ◽  
Edwin Raczko ◽  
Bogdan Zagajewski
Keyword(s):  
Image Classification ◽  
Plant Species ◽  
Invasive Plant ◽  
Accuracy Assessment ◽  
Computer Hardware ◽  
Support Vector ◽  
Assessment Procedure ◽  
Invasive Plant Species ◽  
Assessment Techniques ◽  
Calamagrostis Epigejos

Recent developments in computer hardware made it possible to assess the viability of permutation-based approaches in image classification. Such approaches sample a reference dataset multiple times in order to train an arbitrary number of machine learning models while assessing their accuracy. So-called iterative accuracy assessment techniques or Monte-Carlo-based approaches can be a useful tool when it comes to assessment of algorithm/model performance but are lacking when it comes to actual image classification and map creation. Due to the multitude of models trained, one has to somehow reason which one of them, if any, should be used in the creation of a map. This poses an interesting challenge since there is a clear disconnect between algorithm assessment and the act of map creation. Our work shows one of the ways this disconnect can be bridged. We calculate how often a given pixel was classified as given class in all variations of a multitude of post-classification images delivered by models trained during the iterative assessment procedure. As a classification problem, a mapping of Calamagrostis epigejos, Rubus spp., Solidago spp. invasive plant species using three HySpex hyperspectral datasets collected in June, August and September was used. As a classification algorithm, the support vector machine approach was chosen, with training hyperparameters obtained using a grid search approach. The resulting maps obtained F1-scores ranging from 0.87 to 0.89 for Calamagrostis epigejos, 0.89 to 0.97 for Rubus spp. and 0.99 for Solidago spp.

scholarly journals DISTINGUISHING SUBJECTIVE EXPERIENCE FROM OBJECTIVE FACTORS IN DECISION MAKING AND PERCEIVED EFFORT

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S616-S616
Author(s):  
Richard Gonzalez ◽  
Patricia Abbott ◽  
James Ashton-Miller ◽  
Jacqui Smith
Keyword(s):  
Decision Making ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Subjective Experience ◽  
Objective Measures ◽  
Subjective Measures ◽  
Perceived Effort ◽  
Set Up ◽  
Fully Connected ◽  
Fully Functioning

Abstract We use self-reported and behavioral data from the HomeLab to comment on the theoretical and methodological implications of integrating objective and subjective measures of experience. To illustrate, we will focus on two domains that vary in the nature of objective and subjective measurements examined. One domain will be decision making where subjective measures include subjective probability and utility and the respective objective measures include probability and actual outcomes. The second domain will be activities of daily living where the subjective measure is perceived effort and the objective measures include various data from sensor such as EDA (arousal) and EMG (muscle contraction). The presentation will discuss the benefits of conducting such research in a realistic standardized context such as the HomeLab, which is a fully connected, fully functioning apartment set up as a standardized lab in order to study activities of daily living.

The MMPI-Based Criminal Classification System

1988 ◽  
Vol 15 (1) ◽  
pp. 39-57 ◽  
Author(s):  
LYNNE D. ZAGER
Keyword(s):  
Classification System ◽  
Minnesota Multiphasic Personality Inventory ◽  
Recent Literature ◽  
Personality Inventory ◽  
Practical Utility

The purpose of this article is to review the origin and development of the Minnesota Multiphasic Personality Inventory-Based Criminal Classification System and to evaluate critically the most recent literature with regard to the system's reliability (including interrater, test-retest, and replicability), validity, and practical utility (including the characteristics and institutional adjustments of the groups and the prevalence of use of the system). Finally, recommendations for further research are offered. Overall, the system appears to have demonstrated its reliability, validity, and practical utility.

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