Bálint Molnár | Eötvös Loránd University (original) (raw)

Papers by Bálint Molnár

Knowledge Management and Data Analysis Techniques for Data-Driven Financial Companies, 2023

In today’s fast-paced financial industry, knowledge management and data-driven decision making ha... more In today’s fast-paced financial industry, knowledge management and data-driven decision making have become essential for the success of financial technology (FinTech) companies. Big data (BD) is a prevalent phenomenon that can be found across many industries, including finance. Despite its complexity and difficulty to comprehend, big data is a critical component of financial services enterprises and technology architectures. We examine BD from various aspects, considering data science (DS) techniques and methodologies that can be applied during the operation of an enterprise. Our aim is to provide an overview of knowledge management (KM) practices and data analysis (DA) strategies and techniques in the daily operations of financial companies. We address the role of knowledge management, data analytics in a financial institution. The paper demonstrates financial institutions’ enablement for new services resulting from technological advancements.

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J. M. Machado et al. (Eds.): BLOCKCHAIN 2023, LNNS 778, 2023

In the context of digital transformation in the financial industry, blockchain technology and sma... more In the context of digital transformation in the financial
industry, blockchain technology and smart contracts can play a significant
role in streamlining and enhancing business processes. The
research plan outlined in this paper aims to investigate the integration of
blockchain to improve the digitization of business processes in the financial
sector. By leveraging blockchain’s decentralized and secure nature,
financial enterprises can increase the transparency and efficiency of their
operations. Smart contracts can further enhance this by automating contract
execution and eliminating the need for intermediaries, leading to
cost savings and reduced processing time. Overall, the integration of
blockchain and smart contracts can offer a powerful solution for digital
transformation in the financial industry.

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J. M. Machado et al. (Eds.): BLOCKCHAIN 2023, LNNS, 2023

This research paper presents a novel approach in the design, development, and evaluation of a bl... more This research paper presents a novel approach in the design,
development, and evaluation of a blockchain-based insurance platform
utilizing Marlowe-powered smart contracts. The platform leverages cryptocurrency
as the underlying mechanism for insurance policies and operates
on a decentralized network. A user-friendly website empowers customers
to effortlessly purchase and manage policies, while also enabling
seamless claim submissions and automatic reimbursements based on predefined
guidelines.
In this study, we conduct a comprehensive review of the literature
on smart contracts, decentralized insurance, and blockchain, highlighting
the key challenges and opportunities associated with leveraging these
technologies for a smart contract-based insurance platform. We meticulously
describe the methodology employed, including the selection of
tools and technologies, and outline the rigorous security and reliability
measures implemented to ensure the platform’s robustness.
Through an in-depth evaluation, we examine the platform’s efficiency,
scalability, and security, as well as analyze its potential advantages and
limitations. The results indicate that a blockchain and Marlowe-based
smart contract-based insurance network has the potential to offer a secure,
transparent, and efficient alternative to existing insurance systems.
In conclusion, this paper identifies novel research avenues, such as
further integrating blockchain technology and developing user-friendly
interfaces for non-technical users, to enhance the capabilities and usability
of the platform. The proposed approach showcases the novelty and
potential impact of utilizing blockchain and Marlowe for creating a next generation
insurance platform based on smart contracts.

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Smart Cities, 2023

Because of the competitive economy, organizations today seek to rationalize, innovate, and adapt ... more Because of the competitive economy, organizations today seek to rationalize, innovate,
and adapt to changing environments and circumstances as part of business process improvement
efforts. The strength of blockchain technology lies in its usage as an apt technology to enhance
the efficiency and effectiveness of business processes; furthermore, it prevents the use of erroneous
or obsolete data and allows sharing of confidential data securely. The use of superior technology
in the execution and automation of business processes brings opportunities to rethink the specific
process itself as well. Business processes modeling and verification are essential to control and assure
organizational evolution, therefore, the aim of this paper is three-fold: firstly, to provide business
process management patterns in finance, based on blockchain, specifically for the loan-application
process in the banking industry and claim process in the insurance industry that could be used
and customized by companies; secondly, to critically analyze challenges and opportunities from the
introduction of such approach for companies, and thirdly, to outline how companies can implement
the loan business process as a web service. Partner companies (a bank and an insurance company)
formulated the potential requirements for M2P along with the application of blockchain technology.
An experimental design framework was established that gave the necessary services to model the
requirements, check the models, and operationalize the models. The applied research methodologies
are as follows: design science research paradigm and software case study, model-to-programming
(M2P) of business processes, and utilization of patterns of workflow and blockchain.

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2011 5th International Conference on Software, Knowledge Information, Industrial Management and Applications (SKIMA) Proceedings, 2011

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Smart Farming, 2022

The chapter describes the possibilities of collecting digital data on crop and livestock producti... more The chapter describes the possibilities of collecting digital data on crop and livestock production and their use in "smart farming" systems. Earth drone and spectral mobile mapping technologies can provide plant production-related measures with high temporal and spatial resolution. Remote sensing helps better understand farming patterns and crop management. Improving understanding of the link between remotely sensed data and risk assessment and management in "smart farming" is very important. Controlled-environment agriculture takes advantage of light recipes, related to spectral light-emitting diode (LEDs) and sensors. In livestock farming, analyzing a database of digital data on the environment and livestock individuals can help farmers make decisions better. The heterogeneous digital data from plant and livestock production are collected into a Data Lake. Then the data are processed to transform the data into the proper format for data analytics. Data Warehouse should be integrated into an ERP system that is dedicated to the agricultural environment.

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MDPI Mathematics, 2022

This article is an open access article distributed under the terms and conditions of the Creative... more This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY

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Electronics , 2022

The understanding of human cognition has not been fully achieved; therefore, Information Systems ... more The understanding of human cognition has not been fully achieved; therefore, Information
Systems (IS) are not yet fully synchronized with humans. By understanding the cognition process, we
will be able to create a human-tailored Cognitive Information Systems (CISs). The necessity for this
research is supported by the fact that present business decision makers are faced with challenges that
they cannot solve in the time available without CIS. Here, the aim of the authors is to underpin the
adaptability of cognitive resonance and the role of the info-communication via Human–Computer
Interaction (HCI)—including linkage, relation and impacts, showing the needed direction to increase
the effectiveness of the Human–Computer Interaction (HCI), that leads to an improved CIS building
with a higher cognitive level. The applied research methodology consists of research analyses and
an assessment of the available publications to pursue a comparative study pattern; then, a model
building paradigm has been used for observing and monitoring the work with a CIS during HCI.
We found a huge gap regarding information processing in the recent literature, that has been caused
by the wide range of interdisciplinarity. Our research approach provides an overview of how other
disciplines influence HCI and how the human mental model is supported with value added.

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Conference on Developments in Computer Science Budapest, Hungary, June 17-19, 2021, 2021

With the continuous improvement of global economic integration, the pace of global urbanization a... more With the continuous improvement of global economic integration, the pace of global urbanization and modernization has been accelerated. And with the agricultural and industrial revolutions, the urban population began to expand at an unprecedented rate. Today, 55% of the world's population lives in urban areas, a proportion that is expected to increase to 68% by 2050, additional 2.5 billion city dwellers worldwide. Along with the physical expansion of cities, there are many problems, such as water management problems, social order problems, traffic problems. Among them like the blood of the city traffic, more and more become an obstacle to urban development. Solving the problem of urban traffic congestion and optimize the efficiency of urban traffic is an essential link in building a smart city. Intelligent transportation is an important part of a smart city. How to scientifically design and build intelligent transportation is a very valuable problem. Reinforcement learning, as an important part of the Computer Science, has been widely used in various social fields such as Health, transportation, education, finance, and so on. This paper will discuss the application of intelligent transportation control systems through the investigation and research of intelligent transportation combined with reinforcement learning.

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Procedia Computer Science, 2015

Most recently, the concept of business documents has started to play double role. On one side, a ... more Most recently, the concept of business documents has started to play double role. On one side, a business document (word processing text or calculation sheet) can be used as specification tool, on the other side the business document is an immanent constituent of business processes, thereby essential component of business information systems. The recent tendency is that the majority of documents and their contents within business information systems remain in semi-structured format and a lesser part of documents is transformed into schemas of structured databases. The semi structured documents can be stored and processed in the modern database management systems, in compliance with the requirements of business processes. In order to keep in hand the emerging situation, we suggest the creation (1) a theoretical framework for modelling business information systems; (2) and a design method for practical application based on the theoretical model that provides the structuring principles. The modelling approach that focuses on documents and their interrelationships with business processes assists in perceiving the activities of modern information systems. The interrelationships between documents-centric modelling, the Enterprise Architecture and systematic approach for design provides an opportunity for a unified modelling.

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Applied System Innovation, 2022

Business process modeling and verification have become an essential way to control and assure org... more Business process modeling and verification have become an essential way to control and assure organizational evolution. We overview the opportunities for the application of blockchain in Business Process Management and Modeling in Finance and we focus on in-depth analysis of claim process in insurance as a use case. We investigate the utilization of blockchain technology for model checking of Workflow, Business Processes to ensure consistency, integrity, and security in a dynamically changing business environment. We create a UML profile for the blockchain, then we combine it with a UML activity diagram followed by a verification using Petri nets to guarantee a distributed computing system and scalable with mutable data. Our paper creates a unified picture of the approaches towards business processes modeling used in the financial industry organized around the set of premises intending to develop a future research agenda for blockchain business process modeling, specifically for the financial industry domain.

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9. Annual Technical Conference of the British Computer Society Specialist Group on Expert Systems, 1989

Structured objects are a simple, uniform and intuitively appealing mechanism for modelling applic... more Structured objects are a simple, uniform and intuitively appealing mechanism for modelling application domains through objects with specific structure and behaviour. We shall assume a fairly conventional model of a structured object language with the following features: (1) Structured objects (also called units) are composed of slots, each slot being filled with a value description and also possessing a slot description. (2) Objects have associated behaviours which can be activated through message passing. (3) In our XRL language ...

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Information

The modeling of the graphical representation of business processes (BP) or workflows in enterpris... more The modeling of the graphical representation of business processes (BP) or workflows in enterprise information systems (IS) is often to represent various activities, entities, relations, functions, and communicate between them in an enterprise to achieve the major goal of operational support. In this work, we decided to use graph representation approaches, especially hypergraphs to depict the complex relationships that exist among the artifacts and constituents of BP for more efficient and accurate manipulations. We used bipartite and further hypergraph formats for storing and curating data. We have investigated the various descriptive languages and representation models of BP as process modeling, workflow and process integration, and object-oriented (OO) languages. We have carried out experiments using different approach combinations, but for observing quiltedrepresentation, we focused on the main consistencies of “DBP”. As the final approach, we used the “DBP” stream and data sche...

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Proceedings of the Iti 2011 33rd International Conference on Information Technology Interfaces, Jun 27, 2011

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2013 IEEE 4th International Conference on Cognitive Infocommunications (CogInfoCom), 2013

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Knowledge Management and Data Analysis Techniques for Data-Driven Financial Companies, 2023

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J. M. Machado et al. (Eds.): BLOCKCHAIN 2023, LNNS 778, 2023

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J. M. Machado et al. (Eds.): BLOCKCHAIN 2023, LNNS, 2023

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Smart Cities, 2023

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2011 5th International Conference on Software, Knowledge Information, Industrial Management and Applications (SKIMA) Proceedings, 2011

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Smart Farming, 2022

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MDPI Mathematics, 2022

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Electronics , 2022

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Conference on Developments in Computer Science Budapest, Hungary, June 17-19, 2021, 2021

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Procedia Computer Science, 2015

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Applied System Innovation, 2022

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9. Annual Technical Conference of the British Computer Society Specialist Group on Expert Systems, 1989

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Information

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Proceedings of the Iti 2011 33rd International Conference on Information Technology Interfaces, Jun 27, 2011

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2013 IEEE 4th International Conference on Cognitive Infocommunications (CogInfoCom), 2013

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17th IADIS INTERNATIONAL CONFERENCE INFORMATION SYSTEMS 2024, 2024

Because of the competitive economy, organizations today seek to rationalize, innovate and adapt t... more Because of the competitive economy, organizations today seek to rationalize, innovate and adapt to changing environments and circumstances as part of their efforts. We discuss in particular the use of linguistic summaries for business intelligence reporting, and the strength of this approach to enhance the support in efficiency and effectiveness of business execution. The strength of linguistic summaries approach lies in its possibility to provide explanation to the business managers, in a humanly understandable way, regarding the actual state of business execution, insights to support better decisions and provisions regarding future activities, therefore providing transparent way to analyze and use data in their possession. Solid business intelligence reporting is essential to control and assure organizational evolution. Therefore, the objective of this paper is to present a reference enterprise architecture for data collection and mining of summaries, applicable to companies. Additionally, it aims to analyze the challenges and opportunities associated with the implementation of linguistic summaries in business intelligence reporting, particularly considering diverse data types and amounts of data.

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17th IADIS INTERNATIONAL CONFERENCE INFORMATION SYSTEMS 2024, 2024

The proliferation of big data has led to a data explosion, which has surpassed enterprises' abili... more The proliferation of big data has led to a data explosion, which has surpassed enterprises' ability to appropriately analyse the multitude of data types that now exist. Arguably, one such data type that is challenging for companies to currently exploit but that would benefit greatly from big data analytics is tracing their sustainability performance. Currently, there is consensus in the literature that sustainability tracing based on big data analytics can have a considerable impact in achieving improved organizational sustainability. In a previous paper, we proposed an AI-based framework which uses ESG data to predict and forecast the sustainability performance of companies, and we reflected on how companies could use our framework to implement their enterprise architectures. In this paper, we reflect how our framework can be transformed into a platform solution for ESG data analysis. Our paper contributes to the literature in two ways, firstly by analysing, the regulatory, ethical, and legal opportunities and challenges associated with such am AI platform implementation scenario and secondly by leveraging this platform implementation to outline how companies can use data as a strategic asset for sustainability decision-making.

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REV2023 Proceedings, 2023

Big data is becoming a reality. Complex and difficult-to-understand data may be found in a wide r... more Big data is becoming a reality. Complex and difficult-to-understand data may be found in a wide range of industries. Big data is a critical component of enterprise services and technology architectures. Data science techniques and methodologies can be applied in many aspects of the working of companies. In this paper, first, as a background, we provide an overview of knowledge management practices and data analysis strategies and techniques in the daily operations of companies working towards development of AI agents. Furthermore, we look at the need in particular companies to develop human centric AI solutions; then, we discuss the basics for cross-disciplinary research, in which we stress the need to rethink development processes of AI services and make them more responsible. Thereby, we define research questions to investigate the problem. As the research proposal discusses, companies and public institutions can create and develop new responsible, ethical, and transparent AI services.

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REV2023 Proceedings, 2023

The use of superior technologies in the execution and automation of business processes brings opp... more The use of superior technologies in the execution and automation of business processes brings opportunities to rethink the specific process itself and to improve and optimize the business processes for the company. We discuss the use of (X)AI and blockchain for enhancing the efficiency and effectiveness of business processes. The strength of (X)AI lies in its possibility to provide an explanation to the business processes, its decisions and activities, while blockchain provides transparent yet secure transactions, prevents the use of erroneous or obsolete data, and allows sharing of confidential data securely. Business processes modeling and verification are essential to control and assure organizational evolution, therefore, in this paper we provide an overview of the possibilities of use of XAI and blockchain for business process management and a knowledge management reference model for business processes execution enhanced with XAI and blockchain, that could be used by companies.

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4th International Congress on Blockchain and Applications, 2022

Because of the competitive economy, organizations today seek to rationalize, innovate and adapt t... more Because of the competitive economy, organizations today seek to rationalize, innovate and adapt to changing environments and circumstances as part of business process improvements efforts. The strength of the blockchain technology lies in its usage as an apt technology to enhance the efficiency and effectiveness of business processes, to prevent the use of erroneous or outdated data, and to allow sharing of confidential data in a secure manner. The use of superior technology in execution and automation of business processes brings opportunities to rethink the process itself as well. Business processes modeling and verification are essential to control and assure organizational evolution, therefore, the aim of this paper is threefold: firstly, to provide business process management patterns in finance, based on blockchain, specifically for the loan-application process, that could be used and customized by companies; secondly, to critically analyze challenges and opportunities from the introduction of such approach for companies; and thirdly to outline how companies can implement the loan business process as a web service.

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Conference on Developments in Computer Science Budapest, Hungary, June 17-19, 2021, 2021

Since Risk management is the identification, evaluation and management of threats to the capital ... more Since Risk management is the identification, evaluation and management of threats to the capital and income of an organization, threats or risks may come from a variety of sources, including financial insecurity, legal liabilities, policy errors, accidents and disasters. In digitised enterprises, IT security threats and data-related risks and risk management strategies have been made a top priority. As a result, the risk management plan increasingly includes companies' identification and monitoring processes, including proprietary corporate data, personal information and intellectual data, for threats to their digital assets, Including private corporate data, customer identity and intellectual property information. Each company and organisation, in the event of unforeseen, harmful events, can cost or cause the company to close permanently. Risk management is still a problem for most of the companies nowadays due to different reasons such as failure to use appropriate risk metrics, mismeasurement of known risks, failure to take known risks into account, and failure in monitoring and managing risks. During our research, we have used a hungarian well-known bank dataset which is OTP bank to analyse the customer specifically companies risks given different features of them. We have used different state-of-art or cutting edge models such as xgboost, catboost and Knn algorithms which are useful for future prediction of risk level associated with the companies. After cleaning the dataset and using the different classification algorithms, we came up with comparably good results which we measured with accuracy evaluation metrics.

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Conference on Developments in Computer Science Budapest, Hungary, June 17-19, 2021, 2021

The document-centric perception of Information Systems became ubiquitous recently. Not only the o... more The document-centric perception of Information Systems became ubiquitous recently. Not only the output, input, and internally stored data collections appear as documents but the representation of Business Processes and the artifacts of Enterprise Architecture. For this reason, the document-centric approaches for understanding the behavior of Information systems are an apt tool. Information Systems can be considered from three viewpoints. Namely data, processes, and behavior that represents the complex interaction of business processes through the data. The representation of this complex set of relationships requires approaches grounded in various branches of Mathematics and Computer Science, namely Information Theory, Computational Graph Theory, and Computational Algebraic Topology. In this paper, the essential ideas, proposed methods, and approaches are outlined to open a way for further researches.

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Conference on Developments in Computer Science Budapest, Hungary, June 17-19, 2021, 2021

Education arrived to a new step, where modularity is playing an important role in lifelong learni... more Education arrived to a new step, where modularity is playing an important role in lifelong learning. Young professionals continuously want to pick up new skills but not necessary going through a full university program. Micro-credentials offer a great solution to prove certain obtained skills. The role of higher education institutes is changing with these novel certification methods. Academic recognition is crucial to ensure acceptance and uptake of micro-credentials within higher education. In order to issue a diploma to the learners, they have to show they fulfill the rules of the institute, which can be checked using process mining techniques. Conformance checking runs process models against preset rules to check if that model complies with them or not. These techniques with the proper process modelling tools can provide the option to higher education institutes to automatically issue certificates even diplomas if the learner obtained the necessary microcredentials to get them.

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E-HEALTH 2021 part of the MULTI CONFERENCE ON COMPUTER SCIENCE AND INFORMATION SYSTEMS 2021, 2021

Recently, the use of smart medical solutions has experienced significant growth and the area of I... more Recently, the use of smart medical solutions has experienced significant growth and the area of Internet of Medical Things (IoMT) has been established as an independent field. Artificial intelligence-based analysis of physiological signal data has resulted in promising results. This paper aims to assess neural network compression possibilities applied to a respiratory classification problem. The experiment is carried out on an Nvidia Jetson TX2 edge device and a personal computer. Respiratory sounds are classified into 8 classes of disease using two distinct deep learning networks. The trained models are compressed using half-precision and 8-bit integer quantization methods, and the inference results are compared and analyzed based on predictive powers, memory footprint, and inference time. Traditional, interpretable models (SVM, KNN) are also compared to the former deep models. The results are promising, the compression techniques manage to decrease memory usage 8 times while experiencing a negligible decrease in model accuracy.

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REV2021 18th International Conference on Remote Engineering and Virtual Instrumentation Online Engineering and Society 4.0, 2021

Digital payments are dramatically increasing around the world. Global non-cash payments has obser... more Digital payments are dramatically increasing around the world. Global non-cash payments has observed an increased by 60% since 2015. This rapid growth has been a results of technological innovation and increased presence of regulation. Digital payments offer exciting opportunities and many banks and other financial institutions have been innovating in the domain. Established financial institutions, also also non-financial institution such as start ups or technology companies, are contributing significantly to financial technology innovation in the payments market. This article provides a comparison of two technological innovations and challenges, provides the basis for a conceptual framework on how to compare innovative digital payments solutions, such as future directions in the evolving payments landscape.

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ICETA 2020 18th IEEE International Conference on Emerging eLearning Technologies and Applications, 2020

The advancements within the field of computer science in the last years has been enormous. AI clo... more The advancements within the field of computer science in the last years has been enormous. AI cloud services, crypto currencies, 5G, autonomous vehicles, smart homes, quantum computing, affective computing. The traditional organizational model for preparing computer science educators should be also following this fast pace and study programs should be aligned with recent developments and the latest trends in industry. The aim of this article is to present to future educational designers examples of one new program in the domain of Fintech, and how 3 technical Universities in Europe prepared their Fintech Masters degrees. We give further suggestions and guidelines for universities how to develop such programs.

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11th IEEE International Conference on Cognitive Infocommunications – CogInfoCom 2020, 2020

The rapid change of world causes new challenges in the business environment and in operational ar... more The rapid change of world causes new challenges in the business environment and in operational areas of enterprises. Those challenges likely increase the chance for client satisfaction and other key factors meanwhile improve companies' efficiency. Enterprises are not able to answer these challenges easily in time, e.g. predicting the potential future as one of the key elements impacting the long-term success. The required skills are rarely available in one single person or team, and they are not affordable or not efficient. Therefore, one of the possible solutions is to leverage the capability of a Cognitive Information System via Human Computer Interaction trough cognitive resonance and Cognitive Infocommunication. The cognitive resonance is a process, a resonance that supports and enhances the outcome of the Human Computer Interaction at each step. That determinate the Cognitive Infocommunication is a channel and a tool to realize the cognitive resonance that ensure and improve the quality of Human Computer Interaction that support the sensed data extraction and the semantic understanding. The aim of the article is to describe the silicon agent and the human interaction in light of Cognitive Infocommunication, meanwhile to map the value of Cognitive Infocommunication via human computer interaction. The results of the mapping support a better understanding of the importance of cognitive infocommunication, meanwhile it helps to place it interdisciplinary into the Information Technology sciences. The publication related to, how the human knowledge builds into the Cognitive Information System knowledge, meanwhile highlights the importance of Cognitive Infocommunication process during knowledge transfer between silicon and carbon agent.

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ICAI 2020 11th International Conference on Applied Informatics Proceedings of the 11th International Conference on Applied Informatics (ICAI 2020), 2020

The leading platforms in modern software development for applications with the user interface are... more The leading platforms in modern software development for applications
with the user interface are web and mobile platforms. In the earlier days, it
was common that the purpose of the client side of these applications only display
data and process interactions, while the backend ran all business logic in
the background. Recently a new trend can be identified that the client apps
include complex business logic as well. Modern web frameworks and mobile
technologies rely on the client device’s computing capacities for the maximal
performance, therefore provide built-in services to cache data and run steps
of the business logic on the client device. This paradigm is illustrated by the
success of PWA technology and by offline applications. The user interface of
modern applications is designed by UX designers, who focus rather on the
ease of use and user experience then safety and soundness, which often leads
to disrupting the well-defined business process by introducing new sub-steps
and alternative ways. These tendencies altogether result that the client-side
of modern applications also implement a lot of business logic that already
implemented by the backend in a more strict, straightforward approach. In
a more abstract approach, the client and the server work with the same type
of documents by performing two different business processes that exist at
the same time. The two layers of the application are often developed by
different teams, where frontend and backend specialists work simultaneously.
Altogether this results in new risks that should be mitigated by continuously
evaluating the consistency of the two business processes during the whole
development life-cycle. This evaluation should identify if the two processes
are consistent, special tools have to be introduced that ensure that after performing
a particular iteration in the development roadmap, the consistency is still maintained. The goal of this paper is to introduce a formal model for
this evaluation and introduce tools that can be derived from this model and
can be used in software development and testing.

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12th International Conference e-Health 2020, 2020

By a case study approach, the paper analyzes a project and information ecosystem of the Clinical ... more By a case study approach, the paper analyzes a project and information ecosystem of the Clinical Research environment
within a Medical School at a University. There are two types of data sources, a medical information system based on a
transactional database for recording patients and serving as the basis of nursing and treatments of patients and medical
and other medical IoT systems (like ECGs, etc). There exists neither Data Warehouse solutions nor any other data
collection solutions dedicated to utilizing Data Science methods and tools. The emerging technologies provide
opportunities for synergy between the traditional Data Warehouse and the most recent Data Lake approaches. Therefore,
it seems feasible and reasonable to integrate these two architecture approaches to support data analytics on the research of
medicine and biomedical areas.

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Proceedings of the 17th International Conference on e-Business, 2020

The proliferation of the big data movement has led to volumes of data. The data explosion has sur... more The proliferation of the big data movement has led to volumes of data. The data explosion has surpassed
enterprises’ ability to consume the various data types that may exist. This paper discusses the opportunities
and challenges associated with implementing data lakes, a potential strategy for leveraging data as a strategic
asset for enterprise decision-making. The paper analyzes an information ecosystem of an Insurance Company
environment. There are two types of data sources, information systems based on a transactional databases
for recording claims, as the basis of financial administration and systems policies. There exists neither Data
Warehouse solutions nor any other data collection solutions dedicated to utilizing by Data Science methods and
tools. The emerging technologies provide opportunities for synergy between the traditional Data Warehouse
and the most recent Data Lake approaches. Therefore, it seems feasible and reasonable to integrate these
two architecture approaches to support data analytics on several aspects of insurance, financial activities, risk
analysis, prediction and forecasting.

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2020 IEEE Global Engineering Education Conference (EDUCON), 2020

Teaching innovation and entrepreneurship is a challenging task. It requires students to gain an u... more Teaching innovation and entrepreneurship is a challenging task. It requires students to gain an understanding of key terminology and theoretical knowledge as well as practical experience to build transversal skills. This is what is needed to develop a problem-solving and enterprising attitude for the jobs of tomorrow. At doctoral level, educating STEM graduates to become entrepreneurs and digital leaders in the digital transformation era calls for new learning formats and contents. In this paper we present a new design for the EIT Digital Doctoral School Innovation and Entrepreneurship (I&E) education and we specifically focus on the online educational components developed to cover key I&E content and topics. We present the first results of an evaluation conducted with the students participating in all the courses of the EIT Digital Doctoral School in 2019 and the first impressions and learnings from the new design. We found that the initial feedback was satisfying and that our students appreciated the approach and said that they recommend that instructors use this approach in future teaching. This study contributes to the ongoing debate on how to design and implement I&E education leveraging European universities networks.

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Ninth IEEE International Conference on Intelligent Computing and Information Systems, 2019

Nowadays the variety and complexity of applications arise the requirement of the creation of new ... more Nowadays the variety and complexity of applications arise the requirement of the creation of new flexible models more complex than the existing models. The transformation between models become more important. Several approaches of model transformation are proposed for UML modeling to link between languages on a different level of formality and abstraction. In our paper, we present a transformation between the basic components of state machine diagram which is a type of behavioral diagram in the Unified Modeling Language (UML) and a formal workflow language YAWL. This transformation simplifies the semantics of state machine diagram via a mapping to YAWL, which makes the verification and analysis of state machine models easier and provides a chance to operationalize the model.

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CENTERIS - International Conference on ENTERprise Information Systems / ProjMAN - International Conference on Project MANagement / HCist - International Conference on Health and Social Care Information Systems and Technologies , 2019

This paper presents a description of an analytical approach based on hypergraph representation fo... more This paper presents a description of an analytical approach based on hypergraph representation for enterprise architecture (EA) based on hypergraph theory. The hypergraph as a mathematical structure is very flexible thereby it offers the opportunity for unified and uniform handling of models and providing solutions for representing various views and perspectives of the functioning enterprise exploiting the service of IS. The central concept of EA Modeling is the artifact of the outcome of some modeling, designing and analysis activity. Our idea is to present a formal way to use the mathematical analytic methods for exploring misalignment based on different concepts and relationships between various concepts in the domain and try to align BP requirements.

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Doctoral Consortium (DCEIS 2019), 2019

At present, companies and business are confronted with a rapidly changing environment that is cha... more At present, companies and business are confronted with a rapidly changing environment that is characterized by high market pressure and technological development and to fulfil the customers' needs. All those changes of a business must be implemented in business processes (BP) and their maintaining information systems (IS). Therefore, a necessity of new approaches for the dynamic business process (DBP) for their modelling, dynamic execution, simulation and management to express and model the behaviour of the system over time, it uses too software tools for modelling BP, which integrate components for dynamic modelling and measuring the performance of the processes. This gap triggered significant research efforts and several approaches to solve DBP modelling problems and ensures the processes dynamicity. In this paper, we present the foundation design and BP models to move to advanced steps of execution over time, facilitate and ensure verification and find new approaches for simulation and optimization. We give special emphasis to the investigation of modelling BP, we investigate some fundamental concepts in this domain related with hypergraphs which concepts is strongly supported in Modeling of the DBP.

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ICEIS 2019 Proceedings of the 21st International Conference on Enterprise Information Systems, 2019

In the past decades, there are various legacy ERP systems that exist in different departments or ... more In the past decades, there are various legacy ERP systems that exist in different departments or sub-organizations within the enterprise. The majority of the legacy ERP systems are heterogeneous systems, that may be developed by different software companies under different development framework, which create a big challenge for organizations to develop and implement centralized and integrated management systems based on their existing legacy ERP systems to respond the dynamic business environment with agility. Ontologies are viewed as an effective technology to integrate different data from multiple heterogeneous sources, the ontology learning methods were proposed to achieve (semi-)automated construction of ontologies. This paper proposes a general framework for legacy ERP system integration based on ontology learning to tackle this challenge. Initially, the related literature is reviewed from the perspective of system integration and ontology learning, then an integration framework based on ontology learning is given, and the basic workflow and ontology learning process are analysed and illustrated.

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A FOLYAMATMENEDZSMENT ÉS FOLYAMATMODELLEZÉS LEHETSÉGES SZERVEZETI ARCHITEKTÚRA MEGOLDÁSAI A KÖZIGAZGATÁSBAN (KORMÁNYHIVATAL, KORMÁNYABLAK) A FOLYAMATMENEDZSMENT ÉS FOLYAMATMODELLEZÉS MÓDSZERTANI KÉRDÉSEI, 2021

Business Process Management and Modeling in Public Administration. Application of Structured Meth... more Business Process Management and Modeling in Public Administration. Application of Structured Methods (SSADM), Object-oriented (UML) and Business Process Modeling Notation (BPMN).

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Közigazgatás eljárás jogi támogatására szolgáló rendszer, 2021

Knowledge-based approach for supporting Public Administration to manage and assist citizens in Li... more Knowledge-based approach for supporting Public Administration to manage and assist citizens in Life Events. Ontology and a relational database schema is defines with access rights and roles.

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MTA Információtechnológiai Alapítvány 1993

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Projekt koordinációs eljárás a Megrendelő és a Vállalkozó között

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Adattárház és adatbázis adatanonimizálás módszerei, 2012

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Szolgáltatás orientált architektúrák információs rendszerekben , 2013

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Funkciópont elemzés a gyakorlatban

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SSADM: Struktúrált tervezési módszertan

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Bevezetés az SSADM elemzési és tervezési módszertanba, 2007

Az SSADM (Structured Systems Analysis and Design Method) tulajdonosa a CCTA (Central Computer and... more Az SSADM (Structured Systems Analysis and Design Method) tulajdonosa a CCTA (Central Computer and Telecommunications Agency), amely Nagy-Britannia pénzügyminisztériumá-hoz tartozik, és a kormányzati információs rendszerek beszerzése és készítése felett lát el fel-ügyeletet, valamint az információs rendszerek és az informatika területén a kormányzati poli-tikát alakítja ki. A továbbfejlesztését a Nemzetközi SSADM Felhasználók Csoportja (International SSADM User's Group, ISUG) illetve egy arra illetékes testülete felügyeli. A Brit Számítógéptudományi Társaságon belül (British Computer Society, BCS) létezik egy olyan testület, amely a szakmai elõírások megvalósulását, azok teljesítésének ellenõrzését egy vizsgáztatási rendszer kialakításával Az SSADM tulajdonképpen eljárási, mûszaki és dokumentációs szabványok gyûjteménye, amelyet úgy terveztek meg, hogy kifejezetten a rendszerelemzést és a szoftverfejlesztést tá-mogassa. Két fõrészbõl áll, az egyik a felhasználói követelmények elemzése, a másik a rend-szer tervezése. Ezeket a részeket szakaszokra és lépésekre tagolja. A szakaszok összessége lefedi az adatmodellezés technikáit, a követelményelemzést és a szoftver tervezést. Az SSADM egyik legfontosabb tulajdonsága, hogy rugalmas, azaz az adott (fejlesztési) körül-ményekhez igazítható, továbbá az egyik leghatékonyabb módszer, amely olyan szervezetek rendelkezésére áll, amelyeknek egy szabványos rendszerfejlesztési filozófiára és megközelí-tésre van szükségük. Az SSADM nyílt rendszer. Ez azt jelenti, hogy nyilvános, bárki számára hozzáférhetõ, bárki használhatja licenc díj fizetése nélkül, engedélyt sem kell kérni a CCTA-tól. Ez a nyíltrendszer-stratégia egybeesik más egyéb kormányzati, nyílt szabványnál követett eljárással Nagy-Britanniában (pl. OSI, POSIX). Kifejezetten úgy tervezték, hogy a megjele-nése a piacot újra szabályozza és a versenyt a termékek és a szolgáltatások (pl. konzultáció) között fokozza, valamint felszabadítsa a piacot azoktól a korlátoktól, amelyet a tulajdonosnak fizetendõ licencdíjak jelentenek. Az SSADM stratégia egyik legfontosabb célja, hogy bizto-sítsa a szolgáltatási piac hatékony mûködését, a felhasználói igényeket a piaci lehetõségek maximumáig kielégítse. Ily módon a fejlesztésért felelõs vezetõ nem kerül kiszolgáltatott, függõ helyzetbe a konzultációt, oktatást és a megvalósítást végzõ személyektõl, ha azokat egy idõ után nem találja már a legalkalmasabbnak a feladat ellátására; ilyen esetben a szerzõ-déses partnereket másikkal helyettesítheti anélkül, hogy a befektetések (pénz, idõ, stb.) el-vesznének. Az SSADM 4.0 és 4.2 verziójában pontos útmutatások találhatók, hogy hol és hogyan alkal-mazzák a minõségbiztosítási szabványokat ill. a kapcsolódó eljárásokat, nevezetesen az ISO 9001-t. Ezek az útmutatások nagymértékben rögzítik az ISO 9001 minõségellenõrzési eljárá-sai bevezetésének a módját azok számára, akik ezt alkalmazni kívánják. A projekt vezetést/irányítást a PRINCE módszertan adja, ami jól összeillik az SSADM-mel.

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Bevezetés a rendszerelemzésbe. A rendszerszervezés alapjai, 2002

Ez a rendszerszervezők és rendszerelemzők számára szóló bevezető jellegű könyv. Elsősorban olyan ... more Ez a rendszerszervezők és rendszerelemzők számára szóló bevezető jellegű könyv.
Elsősorban olyan egyetemi és főiskolai hallgatóknak, akik bevezető előadásokon először
találkoznak a rendszerszervezés és rendszerelemzés kérdéseivel. A magasabb évfolyamokon
általában sor kerül egy konkrét rendszerszervezési elemzés és rendszertervezési módszertan
megismerésére, amely egy folytonosan összefüggő technológiai láncolatot nyújt. Ez lehet
strukturált módszertan vagy manapság egyre inkább valamilyen objektum-orientált
módszertan. Az oktatás sokszor spirális és ismétlő jellegéből adódóan célszerű ezért az alsóbb
évfolyamokon még nem egy konkrét módszertan fegyelmezett és szigorú technológiai sorával
foglalkozni, hanem az ilyen módszertanok megértését előkészítve, az általában használt
módszereket technikákat, jelöléseket megismerni és gyakorlatokon elsajátítani.
A gyakorló, esetleg saját módszertant alkalmazó szakember számára pedig ez a könyv
egy választékot tud nyújtani, amiből tovább tudja gazdagítani a már bevált probléma
megközelítését.
A könyv célja az, hogy a megcélzott hallgatóság lássa azt a logikai ívet, ami a szervezeti
stratégia tervezésétől kezdve az informatikai stratégiatervezésen és a szervezésen keresztül az
egyedi információrendszerek megvalósításáig húzódik

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Tankönyv az információbiztonsági programról, kapcsolódó architektúrákról.

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Analysis approach for enterprise information systems architecture based on hypergraph to aligned business process requirements, 2019

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KUTATÁSI BESZÁMOLÓ " ERP 1 rendszerek globalizálódása 2 , telepítési struktúrája nemzetközi cégek... more KUTATÁSI BESZÁMOLÓ " ERP 1 rendszerek globalizálódása 2 , telepítési struktúrája nemzetközi cégeknél " 1. Bevezetés Az ERP rendszerek fejlesztésének, a multinacionális cégeken belüli strukturálási, kialakítási formáinak kutatása az elmúlt években növekvő hangsúlyt kapott. Az ország határokon túlnyú-ló piacokon jelenlévő vállalkozások alapvető érdeke, hogy információs rendszerük az országszintű feldolgozási követelményeken túl, a konszern központi, irányítási rendszerét is biztosítsa, tehát egységesítési és centralizálási törekvéseket folytatnak. Ez a folyamat az ERP rendszerek globalizációját eredményezi és a központi vezetés koncepciójának megfelelően széles megvalósíthatósági megoldásokat eredményez. A szakirodalomban a témakör egyre jelentősebb mértékben kerül publikálásra. Vannak kuta-tóhelyek, melyek egy piaci szegmens megoldásait vizsgálják és erre modelleket állítanak fel 3, mások az egységesítésre alkalmas 34 szoftvermegoldást elemeznek 4 és vannak kutatók, akik kiválasztott, globalizált vevői-eladási rendszerek eredménynövelő hatását vizsgálják 5. Ezt a kutatási érdeklődést a vállalkozások kihelyezési (Offshoring/Nearshoring) trendjének és az ezzel együtt járó ERP rendszerek globalizálódásának növekedése is gyorsítja. A Német Statisztikai Hivatal adatai 6 szerint 2001-2006 között a 100 főnél nagyobb német vállalkozások 14%-a alapított külföldön vállalkozást, melynek logikus következménye, hogy ez párhuzamo-san az új cég közös adatfeldolgozó rendszerének harmonizálását, kiterjesztését is eredménye-zi. A tématerület kutatására a GDF és az ELTE kezdeményezéséhez 2009. októberében hét ma-gyar és három német felsőoktatási intézmény tanszékei csatlakoztak. Céljuk, hogy országaik-ban céginterjúk formájában az ERP globalizálódási elképzeléseket felmérjék, illetve a szakér-tői megbeszélések alapján a kutatás második fázisára súlyponti területeket határozzanak meg. A kutatás első fázisában a globalizációs folyamattal kapcsolatosan három kérdést fogalmaztak meg: A. Milyen mélységű, " standardizált " ERP kialakításra törekednek nemzetközi cégek? B. Milyen modellekbe sorolhatóak az ERP globalizációs folyamatok? C. Mely területeken (ügyviteli folyamatokban) tapasztalható erőteljes törekvés az internacio-nális vállalkozáson belül az ERP globalizáció kialakítására? A kutatásban résztvevő intézmények és személyek az alábbiak:

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A DISSERTATION SUBMITTED TO THE FACULTY OF ELECTRICAL ENGINEERING AND INFORMATICS, 1995

Although, the structured methodologies are widely used in information systems applications, the p... more Although, the structured methodologies are widely used in information systems applications, the performance prediction methods and algorithms are rarely used by the system analysts and designers in evaluating of the design alternatives. It is the intent of this thesis to develop a comprehensive framework in the form of an appropriate methodology and to create an object library to support the decision making process.
The proposed methodology is interfaced to the SSADM (Structured Systems Analysis and Design Method) and has detailed instructions what data should be collected and from which source to set up a performance model. Based on these facts, the design alternatives can be defined in the form of objects.
An object library and the related methods are developed to support the performance modelling of design options. The methods of the objects incorporate the best concepts from existing performance prediction algorithms and computational methods. The various objects provide ways for analysing the distinct aspects of information systems as software service demand, transactions resource requirement depending on the data distribution, the average response time of the system based on patterns of functions usage. There are small templates demonstrating the object definition and model analysis. The object-oriented programming environment in which the object library implemented yields the opportunity for reusability and for further development to fit to new requirements that is to other structured methods.
Finally, a short analysis is outlined using the CommonKADS methodology about the knowledge-base model and necessary inferences to make the system more helpful and 'intelligent'.

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A Web információrendszerek dokumentum centrikus modellezése Az ERP rendszerek rugalmas alkalmazko... more A Web információrendszerek dokumentum centrikus modellezése Az ERP rendszerek rugalmas alkalmazkodásának leírási megközelítései a dinamikusan változó technológiai környezetben

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4th International Congress on Blockchain and Applications, 2022

Because of the competitive economy, organizations today seek to rationalize, innovate and adapt t... more Because of the competitive economy, organizations today
seek to rationalize, innovate and adapt to changing environments and
circumstances as part of business process improvements efforts. The
strength of the blockchain technology lies in its usage as an apt technology
to enhance the efficiency and effectiveness of business processes,
to prevent the use of erroneous or outdated data, and to allow sharing
of confidential data in a secure manner. The use of superior technology
in execution and automation of business processes brings opportunities
to rethink the process itself as well. Business processes modeling and
verification are essential to control and assure organizational evolution,
therefore, the aim of this paper is three-fold: firstly, to provide business
process management patterns in finance, based on blockchain, specifically
for the loan-application process, that could be used and customized by
companies; secondly, to critically analyze challenges and opportunities
from the introduction of such approach for companies; and thirdly to
outline how companies can implement the loan business process as a
web service.

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