Romanian Journal of Human - Computer Interaction

Romanian Journal of Human - Computer Interaction

Basic info

  • Publisher: MatrixRom
  • Country of publisher: romania
  • Date added to EuroPub: 2017/May/20

Subject and more

  • LCC Subject Category: Computer and Information Science, Computer-Human Interaction
  • Publisher's keywords: Human Computer Interaction, •user interface design, •HCI tools, techniques and methodologies, •systems and dialogue design, •evaluation techniques
  • Language of fulltext: english
  • Full-text formats available: PDF

Publication charges

  • Article Processing Charges (APCs): No
  • Submission charges: No
  • Waiver policy for charges? No

Editorial information

Open access & licensing

  • Type of License: Other
  • License terms
  • Open Access Statement: Yes
  • Year open access content began: 2008
  • Does the author retain unrestricted copyright? False
  • Does the author retain publishing rights? False

Best practice polices

  • Permanent article identifier: None
  • Content digitally archived in: Nopolicy
  • Deposit policy registered in: None

This journal has '256' articles

Developing and Using Teaching Materials in eGLE Environment

Developing and Using Teaching Materials in eGLE Environment

Authors: Dorian Gorgan, Teodor Ştefănuţ, Mircea Mărginean, Victor Bâcu
( 11 downloads)
Abstract

The eLearning platforms have been intensively developed in the last decade by providing performant educational services at lower costs than the classical methods. Even so, the development has been significantly limited by the extensive requirement of the eLearning applications for high processing capacity and performant resources. The Grid architecture, which substitutes the single server based architecture, provides solutions for the domains such as management and processing of huge quantities of data (e.g. satellite images, 3D simulations, etc), distributed data processing, and distributed processing over a great number of computing workstations. This paper presents the eGLE platform that supports the using of resources for data storage and distributed processing in Grid systems, and the approach through which the lessons can be developed and executed in domains such as Earth Observation, massive spatial data processing, medicine, etc. It is highlighted as well a new possibility of developing educational materials by efficient mechanisms of repurposing and adapting of teaching objects already available.

Keywords: eGLE, eLearning platform, lesson, teaching material, user interaction, Grid computing
Software tools for the analysis of subliminal testing tasks in facial microexpressions recognition

Software tools for the analysis of subliminal testing tasks in facial microexpressions recognition

Authors: Mihai Aniţei, Mihaela Chraif, Claudiu Papasteri, Andrei Neacşu
( 10 downloads)
Abstract

The facial microexpresions had been situated in the main stream of research for over 5 decades. Therefore, Eakman highlighted two main directions: the possibility to learn the facial microepressions and to learn how to code and analyze the facial microexpresion in different situations. This study highlights the importance of facial microexpressions simulation in human memory retrieval. Learning to code and analyze the facial microexpressions od relevant for selection interview, education, selling and marketing. This way people can express conscious and unconscious the facial microexpressions. The role of the psychologist is focused on the facial microexpressions interpretation making the differences between the true or simulated emotions.

Keywords: emotions, memory retreival facial microexpressions, emotions detections
Patterns of HCI Design and Design of Patterns

Patterns of HCI Design and Design of Patterns

Authors: Ahmed Seffah
( 11 downloads)
Abstract

User interface design patterns also called HCI or interaction or usability patterns have been introduced first as a medium to capture and represent solutions to XVHUV¶ problems. Patterns have been used also as a medium for transferring the expertise of HCI designers and usability professionals to software engineers, who are usually unfamiliar with UI design and usability principles. Design patterns have been considered also as a lingua franca for crossing cultural and professional barriers between different stakeholders. Several HCI professionals have introduced their own pattern languages with specific terminology, classification and meanings. Patterns have also been presented as building reusable blocks at different levels of granularity, which can be combined to compose new interactive systems. Despite the obvious and acclaimed potential of these pattern-driven design approaches, patterns usage has not achieved the acceptance and widespread applicability envisaged by pattern pioneers such as Christopher Alexander. This paper provides an analysis of the facts about patterns usages, pattern languages and pattern-based design approaches. Some shortcomings in the presentation and application of HCI patterns are identified and discussed under the prevailing fallacies. Based on the analysis of how patterns have used so far, we draw some recommendations and future perspectives on what can be done to address the existing shortcomings. Making patterns more accessible, easily understandable, comparable and integratable in software and HCI design tools can promote HCI patterns to claim the usability, usefulness and importance originally envisaged for the pattern-oriented design approach.

Keywords: Design patterns, pattern-oriented design, human-computer interaction, design methods
The Pedagogical Usability - Methodological and Practical Considerations

The Pedagogical Usability - Methodological and Practical Considerations

Authors: Ana-Maria Borozan, Ileana Trandafir
( 10 downloads)
Abstract

The paper presents some specific aspects of the usability of web-based e-learning systems, focusing on the concept of pedagogical usability as a quality feature distinct from general usability. There are briefly analyzed aspects as scope, learning process, content, tasks, learner variables, interaction with users, results evaluation and their implementation in SinPers project (Innovative system for personalized and user-centered learning, with applications to project management). As will be seen below these seven aspects were considered since the requirements specification and design, and were implemented progressively as the system was built.

Keywords: The Pedagogical Usability, Methodological, Practical Considerations
Software for Access of Persons with Disabilities to Scientific Content

Software for Access of Persons with Disabilities to Scientific Content

Authors: Ion Smeureanu, Narcisa Isăilă
( 9 downloads)
Abstract

For people with visual impairments, especially for the blind persons, the access to scientific content raises issues of accessibility both to reading web documents, which contain specific elements of mathematics as images, with or without alternative text and reading from files containing mathematical expressions. The utility of applications for synthesis of artificial language from a text (the mathematical expressions are converted into textual form using editors) written in Romanian language is undeniable, given that increased the concerns for the creation of facilities designed to contribute to a better integration of persons with disabilities in society. The purpose of this paper is the result of research in education field, namely the access to science, integrating the facilities audio presentation of information.

Keywords: Software, Access, Persons, Disabilities
Testing with Visual Impairment Users of a Local Public Administration Web Site

Testing with Visual Impairment Users of a Local Public Administration Web Site

Authors: Iulian Lesneanu, Dragoş Daniel Iordache
( 10 downloads)
Abstract

Accessibility and usability are two concepts which evolved together, usability being associated with ergonomics (especially cognitive ergonomics) of the user-interfaces and accessibility being associated with the not discriminative access to information technology. In this paper are presented the results of testing with visual impairment users of a local public administration Web site. The user testing goal was the identification of the main usability and accessibility problems the blind users are dealing with.

Keywords: Testing, Visual Impairment, Users
MOSpy – Software Instrument for Accessibility Analysis of Graphical User Interfaces

MOSpy – Software Instrument for Accessibility Analysis of Graphical User Interfaces

Authors: Paul Fogarassy-Neszly, , Iuliu Szijjarto
( 10 downloads)
Abstract

This paper present a software instrument dedicated for Graphical User Interfaces accessibility analysis. The presentation is realized through a case study presenting the way this instrument works. There are presented some accessibility deficiencies for the analyzed application and recommendations for accessibility improvement.

Keywords: MOSpy, Software Instrument, Accessibility ,Analysis
A Case Study in Formative Usability Evaluation of a Local Public Administration Web Site

A Case Study in Formative Usability Evaluation of a Local Public Administration Web Site

Authors: Dragoş Daniel Iordache, Ruxandra Dora Marinescu, Maria Gheorghe-Moisii, Costin Pribeanu
( 10 downloads)
Abstract

Usability of local public administration web sites should be a key concern in the implementation of the Information Society in Romania. Unfortunately, usability evaluation is not yet a current practice. The purpose of this paper is to present a usability evaluation methodology and a case study targeting a local public administration web site. The evaluation procedure is based on two methods: heuristic evaluation and user testing. A heuristic evaluation was performed against a set of 24 heuristics. Then a user testing was carried on that was based on the think aloud protocol. The evaluation results obtained with each method were analyzed as regarding their confidence and validity.

Keywords: Case Study, Formative Usability, Evaluation
Facial Expression Recognition Based on Computer-Vision Specific Methods

Facial Expression Recognition Based on Computer-Vision Specific Methods

Authors: Delia Mitrea, Sergiu Nedevschi, Dorian Gorgan
( 9 downloads)
Abstract

The automatic, computerized recognition of the emotional states based on the facial expression represents an important step towards the elimination of the communication gaps that exist between the man and the machine. The corresponding methods have multiple practical applications. The human face is the most important element able to provide useful information concerning the emotional and affective state, besides the body position. The detection of the facial expression through computer vision based methods represents an efficient solution, in both concerning accuracy and cost. In this paper we will present the most relevant methods that exist in the corresponding domain, at national al international level, then we will describe our own solution, based on the computation of potentially useful imagistic features and on the application of some performant classification algorithms. The imagistic features refer to the shape and orientation of the facial elements (eyes, eyebrows, nose, mouth, chin, brow) in the context of a certain emotional state. We also establish the relevance of the determined imagistic features and the role that various facial regions play in the process of facial expression recognition.

Keywords: Facial Expression, Recognition, Computer, Vision Specific Methods
User Interaction Techniques regarding Satellite Image Processing – GreenView and GreenLand Exemplification

User Interaction Techniques regarding Satellite Image Processing – GreenView and GreenLand Exemplification

Authors: Dănuţ Mihon, Victor Bâcu, Teodor Ştefănuţ, Dorian Gorgan
( 10 downloads)
Abstract

Environmental applications have an increasing role in the modern society and in the life of human kind, through the services they offer (e.g. meteorological prediction, wheatear forecast, etc). Unfortunately most of the natural phenomena prediction models work with large sets of parameters and unknown values that have to be calibrated. This operation is high computing power consuming, because of the large volume of data needed to be processed. GreenView and GreenLand are two environmental applications that use Grid infrastructure for the execution phase. The interactive interface of the two applications facilitates their usage, by hiding from the user the internal complexity of the Grid processing. GreenView and GreenLand offer the user different HCI (Human Computer Interaction) techniques regarding the monitoring of the temperature distribution and vegetation growth distribution over worldwide geographical areas.

Keywords: User Interaction, Techniques, regarding, Satellite Image Processing
R3 - A Configurable Input Device for Free-Space Interaction

R3 - A Configurable Input Device for Free-Space Interaction

Authors: Daniel Cernea, Achim Ebert, Andreas Kerren, Valentina Morar
( 10 downloads)
Abstract

Nowadays, a variety of input devices support 3D interaction by offering 6 degrees of freedom (DoF). Nonetheless, such devices that are available for free-space usage (i.e., without the need for a surface as reference system) are rarely intuitive and rather limited in number. To tackle these problems, we propose a highly configurable mid-air device that supports an intuitive interaction with virtual environments. R3 (roll, rotate, rattle) offers good accuracy for 2D and 3D navigation, modeling and gameplay, but also tactile feedback through the presence of a trackball, all this in a user-oriented way. Additionally, the device can be easily switched back to being used as a regular mouse.

Keywords: R3 - A Configurable, Input Device, Free-Space, Interaction
Depth Perception Evaluation of 3D Virtual Prototypes Using Imersive CAVE Systems

Depth Perception Evaluation of 3D Virtual Prototypes Using Imersive CAVE Systems

Authors: Florin Gîrbacia, Andreea Beraru, Eugen Butilă
( 10 downloads)
Abstract

In this paper an experimental study that aimed depth perception of virtual prototypes in an immersive environment compared with the depth perception of virtual prototypes using 2D LCD monitor is presented. The experiment carried out shows that perceived depth values estimated for virtual prototypes is significantly influenced by the stereoscopic visualization. Another interesting result of the study was that the estimated depth accuracy significantly increases with the depth size that has to be perceived. The results of conducted experimental study illustrate that the use of immersive stereoscopic visualization is useful during Computer Aided Design related activities.

Keywords: Depth Perception, Evaluation, 3D Virtual, Prototypes
A Ball Tracking Technique for Augmented Reality Applications

A Ball Tracking Technique for Augmented Reality Applications

Authors: Dragoş Cătălin Barbu, Silvia-Ramona Bunea, Ştefan Măgureanu
( 10 downloads)
Abstract

This article presents a robust tracking technique based on colored balls and with a reduced need for computing resources. The technique is based on a random Hough transform algorithm which is optimized for use in real-time applications such as augmented reality systems. Requiring only a conventional color camera attached to a regular PC, this approach allows to determine the 3D position of balls based on interactive processing frameworks. The algorithm is fast enough to be easily combined with other real-time tracking engines. Unlike tracking techniques based on recognition of planar markers, this technique provides robustness to partial occlusion, which interact with real objects.

Keywords: Ball Tracking, Technique, Augmented, Reality, Applications
Didactics in Assisted Instruction

Didactics in Assisted Instruction

Authors: Gabriel Zamfir
( 11 downloads)
Abstract

Currently, cognitive development is based on diversifying activities which depend on use of personal computers. In terms of technology, the modern world is constantly developing, with its systems becoming more efficient, with which an individual or group of individuals endowed with a rich amount of knowledge systematically, offering increasingly diversified. From a social perspective, the difficulty lies precisely to teach the knowledge workers in order to understand and apply available technology. This paper analyzes and summarizes learning problems by reconsidering the relationship between theory and practice. A new paradigm is proposed, focused on didactics developed in an assisted instruction environment. By this approach, the teacher - personal computer - student triad reflected in education activities are highlighted, in human-computer interaction context.

Keywords: Didactics, Assisted, Instruction

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