| Modelling the repurposing of teaching resources in medical domain through social networks and semantic web | | BIBAK | PDF | 1-18 | |
| Teodor Stefanut; Dorian Gorgan; Eleni Kaldoudi | |||
| The development of teaching materials has currently became one of the main
concerns of the specialists from various domains, including medicine. The
continuous development of e-Learning applications demands the creation of new
types of resources that encourage individual study activities with automatic
system monitoring and less involvement from the teacher. One of the most
promising approaches used currently for creating this type of educational
materials in an efficient manner is the improvement and repurposing of the
already existing resources. Nevertheless, this method generates new issues
related with the description of the connections between the involved resources
and also with the search process and identification of the relevant, good
quality materials. In this paper we present a possible solution to these
problems based on the characteristics of the social networks blended with
functionalities specific to the semantic web. Through these tools we will
describe the relations between resources and will consequently be able to
provide more significant search results. The application presented, called
Metamorphosis+, exposes a user interface that hides the complexity of the
description process and allows users without technical background to benefit
from the provided functionalities. Keywords: semantic web, social network, Web 2.0, repurposing of teaching materials | |||
| Automatical musical genre detection | | BIBAK | PDF | 19-36 | |
| Adrian Simion; Stefan Trausan Matu | |||
| This paper describes and applies various methods for automatic computer
music segmentation. Based on these results and on the feature extraction
techniques used, is tried also a genre classification/recognition of the
excerpts used. The algorithms were tested on the Magnatune and MARSYAS
datasets, but the implemented software tools can also be used on a variety of
sources. The tools described here will be subject to a framework/software
system called ADAMS (Advanced Dynamic Analysis of Music Software) that will
help evaluate and enhance the various music analysis/composition tasks. This
system is based on the MARSYAS open source software framework and contains a
module similar to WEKA for data-mining and machine learning tasks. Keywords: automatic segmentation, audio classification, music information retrieval,
music content analysis, chord detection, vocal and instrumental regions. | |||
| MOM -- software instrument for the analysis of graphical user interface accessibility. Functionality and case studies | | BIBAK | PDF | 37-54 | |
| Paul Fogarassy-Neszly | |||
| The graphical user's interfaces accessibility is a key condition for visual
disabled peoples to use the computer applications. This paper presents the MOM
(Meaningful Object Manager) software tool for accessibility analysis of
graphical user interfaces. The accessibility depends not only on the tested
applications, but also on assistive technologies. During this paper the
functionalities of the MOM tools are described as well as the way these are
used for accessibility evaluation. For each component are presented several
case studies. Keywords: accessibly, assistive technology, visual impairment. | |||
| Municipal web sites accessibility: conformance evaluation against WCAG 2.0 | | BIBAK | PDF | 55-72 | |
| Ruxandra Dora Marinescu | |||
| Although the web accessibility problem was given a high visibility at
European level, the progress is still unsatisfactory. In this paper we present
the results of a study carried on in 2012. The purpose of the study was to
assess the conformance against WCAG 2.0 accessibility guidelines of 98 web
sites from the local public administration. For each web site three web pages
were evaluated. The results are comparatively analysed with those of a previous
study from 2011, targeting a sample of 30 municipal websites. The results show
a low level of web accessibility. Keywords: accessibility, WCAG 2.0, conformance evaluation | |||
| Some remarks on the relationship between the users' personality profile and their preference for Facebook use | | BIBAK | PDF | 73-92 | |
| Ana Maria Marhan; Camelia Mihaela Popa | |||
| Recent studies focuses on topical issues related to Facebook, its use and
impact on billions of young people's social life who may accessing this website
on a daily basis. User public profiles, as well as the content they distributed
throughout the network can provide teachers and counsellors with a variety of
socio-demographic information, along with information on skills, preferences,
hobbies, and personality traits. Therefore, this paper critical examines the
results of studies examining the online behaviour of users, particularly
students, in order to analyse how certain personality traits may influence
their preferences in using Facebook, as well as the relevance of such findings
for the educational practice. Keywords: Facebook, social network, behavior, personality, identity. | |||
| Evaluation of an augmented reality based learning platform using the think aloud protocol an peer tutoring | | BIBAK | PDF | 93-106 | |
| Dragos Daniel Iordache | |||
| In this paper are presented the evaluation result of an augmented reality
platform for teaching chemistry based on a methodology which combines the think
aloud protocol -- TAP and peer-tutoring method. During TAP, the student's task
was to think aloud while solving the exercises from chemistry scenario. The
students where asked to describe all they think, do and feel during the
exercises. Peer tutoring supposed that students who tested the application
based on TAP, teach other students to use it. We consider that this approach
supports a better communication during testing then the communication of
students with an adult and also offer more information about the potential of
the application to be learned. Keywords: evaluation, augmented reality, TAP, peer tutoring. | |||
| Applications for automatic transliteration between English and Romanian | | BIBAK | PDF | 1-14 | |
| Tiberiu Boros; Adrian Zafiu | |||
| Transliteration has been previously introduced for translating proper names
between languages, when the two languages are incompatible at the phonetic
level and they use very different alphabets. We propose an data-driven method
for transliteration from English to Romanian and we present a series of
applications based on this task, such as text-to-speech synthesis (on
multilingual text) and what we call "perception based search". Keywords: transliteration, speech synthesis, maximum entropy. | |||
| POS tagger based on second-order HMM | | BIBAK | PDF | 15-34 | |
| Dumitru-Clementin Cercel; Stefan Trausan-Matu | |||
| Part-of-speech tagging (POS tagging) is the process of grammatical labelling
of each word in a sentence, phrase or paragraph with the corresponding part of
speech. This process is a component of other modules of natural language
processing and therefore the results should be as precise as possible. Once a
part of speech has been identified, it provides supplementary information about
the parts of speech that can appear in the same sentence. In the case of POS
tagging, the ambiguities arise due to the fact that a word may have multiple
morphological values depending on context. In this paper is performed, from an
experimental perspective, an analysis of a POS Tagger based on a Second-Order
Hidden Markov Model, using the Brown corpus. The tests have been conducted to
obtain results according to various parameters. We will show how changes the
accuracy of a POS tagger for English when become different, on the one hand,
the training set size, and on the other hand, the domains of the original
functions in comparison with the domain of the training set. We have identified
the categories of texts from Brown corpus used for the training corpus when the
accuracy of the POS tagger is higher, lower respectively. Keywords: NLP, POS Tagging, trigrams, HMM, Viterbi algorithm, the Brown Corpus. | |||
| Testing of a model based on UTAUT for the acceptance of e-learning systems | | BIBAK | PDF | 35-58 | |
| Alexandru Balog | |||
| The purpose of this study is to test a model of acceptance of e-learning
based on UTAUT model developed by Venkatesh, Morris, Davis and Davis (2003).
After a brief presentation of the UTAUT model and recent studies in the field
of e-learning, are described the proposed model and the hypotheses, methods
used and results obtained. By applying multivariate analysis methods on a
sample of students (N = 224), the results show that the model is viable in the
context of e-learning in Romania. The model explained 63% of variance of Intent
to continue the use of e-learning. Keywords: e-learning acceptance, UTAUT, EFA, CFA. | |||
| Diagramatic description of distributed spatial data processing | | BIBAK | PDF | 59-80 | |
| Vasile Danut Mihon; Angela Minculescu; Vlad Colceriu; Dorian Gorgan | |||
| Most of the times, modeling and simulating natural phenomena involves a
large number of operations, based on different compatibility constraints and
rules. The solution proposed in this paper optimizes the entire description
process through execution workflows. It offer the users special interaction
techniques for workflow specification, automatic mechanism for syntactic
validation of the described phenomena, hierarchical organization of the
workflow, collaborative environment, reuse of resources, graphical modules
customization. The proposed solution is intended to be used by both technical
and non-technical users that do not have knowledge about the computational
infrastructure. This paper describes the features implemented within the
WorkflowEditor application that allows the interactive workflow development
used in distributed processing of spatial data. Keywords: workflow, hypergraph, distributed processing, spatial data, use case,
syntactic rules, collaborative environment. | |||
| Controlling the applications running on a Windows system by means of Android devices | | BIBAK | PDF | 81-96 | |
| Cristina Serban; Irina Grosu; Alexandra Siriteanu; Alexandru Averescu; Adrian Iftene | |||
| This article presents a client-server application that, enabling the user to
remotely control with an Android component the applications running on the
Microsoft Windows operating system. The system consists of two main modules:
the client (the application running the user's phone) and the server (the
application running on the computer). Additionally, there are two means of
communication between the two key components: Wi-Fi and Bluetooth. Tests we
have done on this solution demonstrated the robustness of the application in
use over a long period of time, stress testing and communication when there are
objects between client and server. Keywords: Android, Windows services, remote control. | |||
| Specific aspects regarding the usability of faculty admission websites | | BIBAK | PDF | 97-108 | |
| Grigoreta-Sofia Cojocar; Adriana-Mihaela Guran | |||
| Faculty admission websites are used every year by thousands of people
looking for some kind of information. In this paper we present an empirical
evaluation of Babes-Bolyai University faculty admission websites. The
university has 21 faculties, each one having its own website. The evaluation is
performed using different criteria (i.e., the design, the displayed
information, the language used, etc) derived from usability heuristics. Keywords: website usability evaluation, university admission websites. | |||