Elżbieta Lewańska

• PhD
• Poznań University of Economics and Business

The paper presents business models (BMs) for blockchain-based businesses. The paper is a study of IT-aligned BMs categorized by the concepts and possibilities of blockchain business applications. The research aimed to recognize and analyze the extent and directions in which blockchain architectures influence the means of conducting businesses. A se...

This paper examines the alignment of blockchain architecture with the specific requirements of public business registers in Europe. Through a comprehensive literature review, categorization of blockchain models, and analysis of European public business registry cases, this study develops a framework to guide blockchain adoption in public registries...

This paper presents the experiments and results for the CheckThat! Lab at CLEF 2024 Task 6: Robustness of Credibility Assessment with Adversarial Examples (InCrediblAE). The primary objective of this task was to generate adversarial examples in five problem domains in order to evaluate the robustness of widely used text classification methods (fine...

This paper presents the experiments and results for the CheckThat! Lab at CLEF 2024 Task 6: Robustness of Credibility Assessment with Adversarial Examples (InCrediblAE). The primary objective of this task was to generate adversarial examples in five problem domains in order to evaluate the robustness of widely used text classification methods (fine...

Open data is an integral part of Smart City projects carried out around the world. A public transport network is widely used when it is safe, well designed and reliable. The development and maintenance of the urban transport are key items in city budgets. Decisions regarding changes and the future organization of the public transport are supported...

The paper presents the concept of Incremental Modeling Method of the supply chain. Research is conducted in accordance with the Design Science Research paradigm. The work presents an innovative concept of supply chain modeling using Data Science (DS) methods. Its tasks are to mitigate several problems of supply chain modeling such as time required...

County lines are a new type of criminal activity in the UK in which young people are being forced to participate in drug dealing. This article presents an application of an unsupervised machine learning technique to detect such cases among a bank’s clients, using financial and spatial data. It proposes and presents a system for detecting county lin...

Supply chain modeling is one of the key tools to improve its performance measures. This research follows the principles of Design Science Research (DSR). The paper presents the concept of incremental modeling, which helps quick adaptation of the suply chain model. This method uses Data Science methods and Big Data. Evaluation of the method will be...

This paper describes research being conducted in field of promotion planning and optimization for a chain of convenience stores. The motivation for choosing this subject is an important role of promotions in retail market and availability of large amount of data that can be used to improve profitability of promotions. In addition, most of existing...

As modern enterprises use a number of different information systems, the problem of integrating them becomes crucial. One of the most-used patterns for integration is through application interfaces. However, information systems change constantly in order to respond to the new informational needs of enterprises. The regression testing goal is to ass...

Dynamic changes on of the business environment force business experts to continuously monitor and analyze situation and relations on the market. Due to the volume of available data and huge number of entities that operates on most markets, it is very time and cost consuming to perform the analysis manually. The paper presents an outline of analysis...

The article focuses on the development of public e-services and implementation of Business Process Orientation approach in public administration in Poland. An emphasis is put here on activities carried out by local government units in Poland. In the article the current state of development of e-services in Poland is discussed, followed by an analy...

Studies have shown that for the needs of the decision-making process, it is not enough to take into account the internal aspects of an organization, but its external business environment should be considered as well. Due to the rapid changes in the business environments and huge volumes of data that need to be analyzed, conducting analyses of the e...

Efficient support of business needs, processes and strategies by information technology is a key for successful enterprise functioning. The challenge of Business and IT Alignment (BITA) has been acknowledged and actively discussed by academics and practitioners during more than two decades. On one hand, in order to achieve BITA it is required to an...

In order to achieve Business and IT Alignment (BITA) it is required to capture and analyze both business and IT dimensions of enterprises. In this regard Enterprise Modeling (EM) is acknowledged as one useful mean. One of the central roles during EM is EM practitioner who drives and coordinates the EM project. Conducting EM is a highly collaborativ...

This paper presents an outline of a method allowing to identify business networks via performing enhanced analysis and processing of data gathered from web sources, especially semantically enhanced databases. Thus, the proposed method, developed within an on-going PhD thesis, will operate on semantic profiles of market participants created especial...

In the knowledge-based economy, organizations often use expert finding systems to identify new candidates or manage information about the current employees. In order to ensure the required level of precision of returned results, the expert finding systems often benefit from semantic technologies and use ontologies in order to represent gathered dat...

The main goal of the eXtraSpec system is to identify experts for the needs of organizations. Therefore, the system has not only to be able to acquire and extract information from various sources, but also requires an appropriate representation of information supporting reasoning over person characteristics, as well as an appropriate Web interface a...

Efficient utilization of knowledge became a key to the success of an organization. The need to identify experts within or outside an organization has been for a long time inspiration for various initiatives undertaken by academia and industry. The eXtraSpec system developed in Poland is an example of such initiatives. In order to realize its tasks,...