Tatjana Welzer

dblp:w/TWelzer · also Tatjana Druzovec, Tatjana Welzer-Druzovec · DBLP profile ↗
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22ranked-venue papers in the field
6as first author
2since 2021 · last 2023
0000-0002-6865-4946ORCID · verified

Domains — venue-derived; a paper can count in several

Knowledge Engineering, Semantic Web & Information Systems · 15 (4 first)Database Systems & Data Management · 6 (2 first)Data Mining & Knowledge Discovery · 1
YearPublicationVenuePosition
2023 Browser Fingerprinting: Overview and Open Challenges
abstract
The central concept of browser fingerprinting is the collection of device-specific information for identification or security purposes. This chapter provides an overview of the research conducted in the field of browser fingerprinting and presents an entry point for newcomers. Relevant literature is examined to understand the current research in the field of browser fingerprinting. Both research in the field of crafting browser fingerprints and protection against it is included. Finally, current research challenges and future research directions are presented and discussed.
Marko Hölbl, Vladimir Zadorozhny, Tatjana Welzer, Marko Kompara, Lili Nemec Zlatolas
EJC3
2023 Identification and Analysis of Factors Impacting e-Inclusion in Higher Education
abstract
In this chapter, we investigate the complex process of analyzing and understanding the factors that influence individuals’ access to and participation in digital education within the Higher Education context. While the digital transformation in Higher Education Institutions (HEI) has produced numerous benefits for both students and educators, it has also brought forth challenges, particularly for students with special educational needs and disabilities (SEND). A literature review was conducted, to gain insight into the specific requirements of this student demographic. This review aimed to identify the multifaceted factors that impact e-inclusion within Higher Education. Our research resulted in the identification of 24 different factors that should be considered when evaluating e-inclusion within HEI. These factors serve as essential indicators in the assessment of the accessibility and inclusivity of digital education, allowing for a more multifaceted understanding of the dynamics in the Higher Education landscape.
Maja Pusnik, Katja Kous, Tatjana Welzer, Bostjan Sumak
EJC3
2019 Teaching the Fundamental Concepts of Relational Databases to Students with Different Educational Background - An Experimental Study
abstract
The paper presents the results of an experimental study, which examined the effectiveness of learning database fundamentals depending on students' educational background as an influencing factor. In addition, a students' knowledge perception and their actual knowledge were analyzed regarding their educational background. The results demonstrate that students' educational background did not have an effect on the overall learning process. We also found that the background does not have the same influence on students' self-assessment throughout the entire learning process.
Aida Kamisalic, Muhamed Turkanovic, Tatjana Welzer, Marjan Hericko
EJC3
2019 A Survey-Based Evaluation of Approaches and Tools for Business Process Optimization Support
abstract
The paper addresses the field of Process Optimization in Slovenian companies, and their attitude toward optimization approaches. A survey was conducted, including professionals from companies, as well as students, examining approaches to assure business process quality, its validation and optimization, containing several methods. Survey results, both in companies (24 participants) and among students (24 participants) indicate that, although a combination of methods provides the best results, modeling, KPI identification and simulation are the best indicators of process strengths and weaknesses, as well as optimization potentials. Therefore, the research was complemented with a review of 5 available modeling and simulation tools, providing evaluation and comparison. To get insight into which of the tools best supports the optimization process, a comparative analysis was conducted, identifying key differences between them, and providing suggestions for optimization enhancement in companies.
Maja Pusnik, Tatjana Welzer, Marjan Hericko, Bostjan Sumak
EJC2
2019 Multi-level medical knowledge formalization to support medical practice for chronic diseases
Aida Kamisalic, David Riaño 0001, Suzana Kert, Tatjana Welzer, Lili Nemec Zlatolas
Data Knowl. Eng.4
2018 Evaluation of Patterns for Mobile User Interface Enhancement
abstract
In the paper, we explore the topic of mobile user experience and we focus on native mobile applications. The goal of this paper is to research what mobile user experience is, identify important mobile patterns, and define processes and guidelines for the design and measurement of the mobile user experience and the identified mobile patterns. Based on the literature review, there are several elements or factors affecting the mobile user experience. We established a big advantage of native applications, which are designed for a specific platform, where there is more time to create a specific customer experience. The main findings of the paper showed that the mobile user experience differs from the desktop user experience, and that there are many mobile patterns, which may significantly improve or degrade the mobile user experience for various target groups.
Maja Pusnik, Dimitar Ivanovski, Tatjana Welzer, Bostjan Sumak
EJC3
2016 Optimization of Processes in Multimedia Content Publishing: A Proposal for Architecture Design
abstract
Organizations in the publishing field accumulate large amounts of data and store it in different forms of knowledge databases. In the publishing field specifically, various multimedia content presentation is involved, requiring support for contemporary e-book standard formats (e-Pub) as well as traditional standard formats such as HTML, PDF, and others. Publishing organizations must support the same content presentation in various formats in order to meet the needs of their increasingly demanding clients. However, business (and organizational) processes in publishing in the presented case study have little IT support and almost no automation. Successful business flow and a competitive advantage for publishing organizations, especially for SMEs, requires a holistic solution for the optimization of publishing processes, including data/knowledge acquisition, data/knowledge aggregation and the creation of new knowledge based on existing data. Although partial IT solutions are available and can be used to support individual steps in the publishing process, they do not come in an out-of-the box solutions, suitable for adequate publishing processes automation and optimization. Two basic challenges regarding existing solutions available on the market are: (1) they do not provide support for automation or semi automation in the publishing processes, and (2) they are expensive and consequently not acceptable for SMEs. This paper is focused on analyzing publishing work processes and its quality aspects, addressing the automation of all possible process steps: especially the optimization of acquisition, aggregation and building of multimedia content for any device. In addition, a solution built on open source components is proposed as well, supporting the presentation of content in different published formats. Based on a case study, we present the solution's architectural design and analyze standards and technologies, providing an acceptable solution for SME's from an economical point of view, optimizing its work processes to the largest possible extent. A renewed publishing process is proposed and future research directions are also discussed.
Bostjan Sumak, Marjan Hericko, Tatjana Welzer, Maja Pusnik
EJC3
2015 Security and Privacy related Issues in the Internet of Things
Marko Hölbl, Tatjana Welzer, Lili Nemec Zlatolas
EJC2
2015 Introducing cultural issues and cultural awareness in conceptual modelling education
abstract
Conceptual modelling education is often a part of any Informatics and Computer Science curricula but is also included in other study programs where conceptual modelling knowledge is needed. Conceptual modelling is well defined and numerous sources are available in existing literature. The steps to develop conceptual models are easy to learn and support is possible also via different tools, based on a theoretical background, mostly through the Peter Chen approach. In general, such an educational approach can be described as a standard conceptual modelling education. But, unfortunately, standard conceptual modeling education does not inform culturally-aware developers of conceptual models. The confidence and assurance that cross cultural issues and cultural awareness will be considered in the phase of conceptual modelling could be reached on one side by upgrading the conceptual modeling approach with a cultural point of view, as well as by introducing cultural issues into conceptual modelling education. Students need to be aware of basic cultural issues and concepts and their influence on conceptual modeling. In the long term, the mentioned content should become part of standard conceptual modeling education. This means changes in the content of curricula as well as a change in thinking by students and teachers.
Tatjana Welzer, Marjan Druzovec, Lili Nemec Zlatolas, Marko Hölbl, Hannu Jaakkola, Mirjana Ivanovic, Milos Radovanovic 0001
EJC1
2014 Intercultural Collaboration in a Virtual Environment
abstract
For successful collaboration, global communication systems are of critical importance, especially those which are enabled by information and communication technology as partners in the process. It seems that partners do not need to know each other personally, but it is enough that they have a good technical support in computerized collaborative tools and software. This also means that collaboration (cooperation) does not depend on geographical location and can be spread all around the world. Establishing a virtual environment means establishing surroundings in which partners have to work and communicate. From a technical point of view, such an environment seems to be quite easy to organise and manage. However, difficulties can be expected in the collaboration of people, even when cooperation is based on a common business culture. In spite of belong to the same business culture, participants can belong to different language and culture groups, which can have an important influence on collaboration of all involved parties. While the language differences can be overcome with the use of English as a lingua franca, we do not have a Culture as a culture franca. This means that attention should be paid to intercultural collaboration in a virtual environment. Education in cultural studies, cultural awareness and appropriate tools are all necessary. In this paper, we will point out all the important components for international collaboration in a virtual environment, from definitions of interculture and collaboration up to methodologies, that supports work in a virtual environment and virtual centres itself.
Tatjana Welzer, Hannu Jaakkola, Marko Hölbl, Marjan Druzovec, Anthony E. Ward
EJC1
2012 Cultural and Lingual Awareness for the Global Conceptual Modeling
abstract
Present computer science and informatics have to produce IT solutions that are user friendly and in general global appropriate while we are nowadays much more connected to each other as in the past. We are living in multicultural and multilingual societies where the intercultural dialog and cultural awareness are more and more important. With increased mobility, small societies are more multicultural and international, while in the past mostly only big societies with a lot of immigrants have been described as multicultural and multilingual. Internationalization and mobility pushed us to take care about the global conceptual modeling. This entire means that our partners in the modeling process (users and customers) are/could coming from different organizational, cultural and language environments. Consecutive, this can influence theirs way of understanding conceptual modeling, as well as methods, expectations, results and other activities in the process. Even more, this can influence also their understanding of expert topics independent to the fact that we have to do with the common, everyday used topics like counting and banking, known all around the world.
Tatjana Welzer, Hannu Jaakkola, Marjan Druzovec, Marko Hölbl
EJC1
2009 Cross-Cultural Collaborative Systems: Towards Cultural Computing
abstract
Cultural computing is an emerging field of multidisciplinary computer science. In the near future, cultural computing will have several important applications in the fields of business, knowledge society, environmental issues, health care, education and research. Our paper is written in collaboration with the authors, who are also participants in the collaborative research project “Ubiquitous Cross-Cultural Multimedia Systems for Mobile Computing Societies/Ubiquitous Cross-Cultural Knowledge Space”. The issues discussed in our paper cover background knowledge related to cultural computing, general discussion of culture as a concept, an introduction to the concept and basic design of the Electronic Assistant for Cross-Cultural Communication, and an introduction to the design and implementation of the 3D Cross-Cultural Multimedia Museum" system and its applications. The 3D Cross-Cultural Multimedia Museum has been implemented as a prototype system of Cross-Cultural Cyber Space. The global changes caused not only by scientific and technological development, but by environmental issues as well, are our driving forces towards the era of cultural computing. Our paper is based on the presentations of the panel discussion at the EJC 2009 Conference.
Anneli Heimbürger, Shiori Sasaki, Naofumi Yoshida, Teijo Venäläinen, Petri Linna, Tatjana Welzer
EJC6
2009 Aspects in Information Modelling and Knowledge Bases Research
Aida Kamisalic, Domen Mongus, Luka Pavlic, Sandi Pohorec, Andrej Sevcnikar, Mateja Verlic, Tatjana Welzer, Marko Hölbl
EJC7
2009 First Approach to Micro-temporality Generation for Clinical Algorithms
abstract
Clinical Algorithms (CAs) are obtained from Clinical Practice Guidelines (CPGs) using all the healthcare knowledge available to assist patients that suffer from one or several diseases. For some diseases CAs can be explicitly given, while for others we have to use other mechanisms for their generation. Explicitly given CAs use to be atemporal. To provide the time dimension of CAs it is necessary to obtain temporal knowledge from physicians or by some other mechanism. Often, physicians have difficulties in providing temporal knowledge or the knowledge engineering mechanism and tools used are difficult to apply or extremely time consuming. However, as data saved in clinical databases are time dependent, they can be used to implicitly obtain temporal constraints for CAs. We have identified two sorts of temporal constraints (micro- and macro-temporality) and have proposed an approach to generate micro-temporalities that complements previous works. We have decided to use the SDA (state-decision-action) formalism for CA representation. The generated micro-temporality constraints are introduced in the SDA representation of a particular CA. As the final CAs have a time dimension, they are no longer atemporal, which helps physicians making temporal predictions in healthcare procedures.
Aida Kamisalic, David Riaño 0001, Tatjana Welzer
EJC3
2007 Adaptive k-Nearest-Neighbor Classification Using a Dynamic Number of Nearest Neighbors
Stefanos Ougiaroglou, Alexandros Nanopoulos, Apostolos N. Papadopoulos, Yannis Manolopoulos, Tatjana Welzer
ADBIS5
2007 The improvement of data quality - a conceptual model
Tatjana Welzer, Izidor Golob, Bostjan Brumen, Marjan Druzovec, Ivan Rozman, Hannu Jaakkola
EJC1
2005 Machine-Learning with Cellular Automata
Petra Povalej Brzan, Peter Kokol, Tatjana Welzer, Bruno Stiglic
IDA3
2000 Predicting Sample Size in Data Mining Tasks: Using Additive Incremental Approach
Bostjan Brumen, Hannu Jaakkola, Tatjana Welzer
EJC3
2000 Guest Editorial: Special Issue On ADBIS 1999
Johann Eder, Tatjana Welzer, Gottfried Vossen
Inf. Syst.2
1999 Performance Assesment Framework for Distributed Object Architectures
Matjaz B. Juric, Tatjana Welzer, Ivan Rozman, Marjan Hericko, Bostjan Brumen, Tomaz Domajnko, Ales Zivkovic
ADBIS2
1997 "Tailor" Approach to the Conceptual Database Design
Tatjana Welzer
ADBIS1
1993 Meta Data Model for Database Design
Tatjana Welzer, Johann Eder
DEXA1