Information and Software Technologies: 27th International Conference, ICIST 2021, Kaunas, Lithuania, October 14–16, 2021, Proceedings (Communications in Computer and Information Science)

This book constitutes the refereed proceedings of the 27th International Conference on Information and Software Technologies, ICIST 2021, held in Kaunas, Lithuania, in October 2021. The 24 full papers and 6 short papers presented were carefully reviewed and selected from 79 submissions. The papers discuss such topics as ​business intelligence for information and software systems, intelligent methods for data analysis and computer aided software engineering, information technology applications, smart e-learning technologies and applications, language technologies. Preface Organization Contents Business Intelligence for Information and Software Systems-Special Session on Intelligent Methods for Data Analysis and Computer Aided Software Engineering Agile Infrastructure for Cloud-Based Environments: A Review 1 Introduction 2 Background 3 Related Work 4 Study Design 4.1 Search Strategy 4.2 Study Selection Criteria 4.3 Study Selection Process 4.4 Data Extraction 5 Results and Discussion 6 Conclusions References Creating Resilient Supply Chains Using Combination of Blockchain Technology and Different 4.0 Technologies 1 Introduction 2 Research Methodology 3 Application of Blockchain Technology in Supply Chains 4 The Co-occurrence of 4.0 Technologies in BT Supply Chains - The State of Research 5 Creating Resilient Supply Chains in a 4.0 Technology and Blockchain Environment 6 Proposals for Future Research – The Concept of Coexisting Technologies to Support Resilient Supply Chains 7 Conclusions and Limitations of the Study References Defining Beneficiaries of Emerging Data Infrastructures Towards Effective Data Appropriation 1 Introduction 2 Background 2.1 Data Lab Initiatives 2.2 Lessons Learned from Existing Labs 2.3 Infrastructural Challenges of Data Labs 2.4 Earth Observation (EO) 3 Research Method 3.1 The Persona Method 3.2 The SDL Context 3.3 Developing SDL Personas 4 Findings 4.1 Persona Variables 4.2 Persona Characteristics 5 Discussion and Conclusion Appendix References Design Workflows Graph Schemes Correctness Proof in Computer Aided Design Activity 1 Introduction 2 Related Works 3 Formal Description 4 Design Workflows Graph Scheme 5 Workflow Graph Scheme Correctness 6 Theorem Statement and Proof 7 Conclusion References Financial Data Preprocessing Issues 1 Introduction 2 Financial Data Cube Dimensions 3 Financial Data Preparation 3.1 DP1. Rules for Data Preprocessing (SQL) 3.2 DP2. Preprocessed Aggregated Data Results File/Table/View Name and Location 3.3 DP3. Rules for Aggregated Data Analysis (SQL) 4 Financial Data Set Fields 5 Conclusion References Information Technology of Decision-Making Support on the Energy Management of Hybrid Power Grid 1 Introduction 2 The Analysis of Management Peculiarities of Hybrid Power Grids with Renewable Energy Sources 3 Problem Statement 4 Decision-Making in the Management of Hybrid Power Grids with Renewable Energy Sources 5 Information Technology of Decision Support on the HPG Management 5.1 Model of Data Collection and Pre-processing 5.2 Model of Determining the Electricity Generation Level 5.3 Model for Determining the Level of Electricity Consumption 5.4 Electricity Quality Assessment Model 5.5 Models of Decision Support in the Management of a Hybrid Power Grid 6 Conclusions References Rule Driven Spreadsheet Data Extraction from Statistical Tables: Case Study 1 Introduction 1.1 Background 1.2 Contribution 2 Spreadsheet Data Preprocessing 2.1 Preliminaries 2.2 Tables Header Correction 3 Spreadsheet Data Extraction 4 Experimental Results 4.1 Ground-Truth Preparing 4.2 Performance Evaluation 5 Conclusions References Semantic Interoperability of CV Builder: Problem and Practical Solutions 1 Introduction 1.1 Systematic Review 1.2 Review Findings and the Results of the Comparative Analysis 2 Methodology 2.1 Empirical Research 2.2 Research of CV Websites 3 Results and Discussion 3.1 Results of the Empirical Research 3.2 Results of the Research of CV Websites 3.3 IBM Artificial Intelligence Tool for Personal Dimensions, Values and Needs Assessment 3.4 Proposed CV Information Model 4 Conclusions References Using Management Transaction Concept to Ensure Business and EAS Alignment in an Agile Environment 1 Introduction 2 Key Concepts 2.1 Enterprise Architecture Modelling 2.2 Agile Software Development Management Concepts 3 Related Works 4 Using Management Transaction to Ensure Business and IT Alignment 5 Case Study 6 Conclusions References Software Engineering-Special Session on Intelligent Systems and Software Engineering Advances An Analysis of ED Line Algorithm in Urban Street-View Dataset 1 Introduction 2 Preliminaries 2.1 First Order Derivative Operators 2.2 Benchmarking the Edge and Line Results 2.3 Datasets 2.4 Simulation Environment 3 ED Line Algorithm 4 Analysis Results 5 Discussions and Conclusion References Automated Nonlinked Two-Vehicle Towing System 1 Introduction 2 Relative Works 2.1 Advanced Driver-Assistance System 2.2 Lane Detection 2.3 Color Spaces 3 Methodology 3.1 Line Following System 3.2 License Plate Following System 4 Experiment Setup for ANTS 4.1 Experiment Setup for Vision System 4.2 Experiment Setup for ANTS 5 Evaluation and Results 5.1 Computer Vision System in ANTS 5.2 Line Following 5.3 License Plate Following 5.4 Discussion 6 Conclusion References Automatic Programming Problem Difficulty Evaluation – First Results 1 Introduction 2 Related Work 2.1 Approaches 2.2 Algorithms 3 Datasets 4 Methods and Results 4.1 Text-Based Evaluation 4.2 Image-Based Evaluation 4.3 Combining Text and Image-Based Evaluation 5 Discussion and Future Work References Blockchain Based Cryptocurrency Transaction Data and Balance Anonymity Improvement 1 Introduction 2 Transaction Data Structure 3 Session Signature Creation and Transaction Validation 4 Discussion and conclusions References Cloud-Based Cyber Incidents Response System and Software Tools 1 Introduction 2 Related Papers Review and Problem Statement 2.1 Scientific Literature Review 2.2 Problem Statement 3 Theoretical Background of the System Development 3.1 Information Security System Architecture for the Protected Cloud 3.2 Secure Architecture of Cloud Data Center 3.3 Categories of Cyber Threats and Cyberattacks 4 Experimental Study and Discussion 4.1 Experiments Using RStudio 4.2 Experiments Using CloudSim 5 Conclusions References Efficient and Secure Digital Signature Scheme for Post Quantum Epoch 1 Introduction 2 Digital Signatures 2.1 Lamport–Diffie One-Time Signature Scheme 2.2 Winternitz One Time Signature Scheme 2.3 Merkle Crypto-System 3 The BLAKE Hash Function 4 Quantum Key Distribution 5 The Novel Scheme 6 Security and Results References Investigation of Recurrent Neural Network Architectures for Prediction of Vessel Trajectory 1 Introduction 2 Vessel Traffic Data 2.1 Data Sequence Generation 3 Recurrent Network Architectures 4 Experiment and Results 4.1 Instructions for Network 4.2 Models Evaluation 5 Conclusions References RTCAnalysis: Practical Modular Performance Analysis of Automotive Systems with RTC 1 Introduction 2 Related Work 3 Background 3.1 Real-Time Calculus 3.2 Greedy Processing Component 3.3 Modular Performance Analysis 4 RTCAnalysis System Model 5 Model Analysis 6 Evaluation 7 Conclusion and Outlook References Run-Time Class Generation: Algorithms for Difference of Homogeneous and Inhomogeneous Classes 1 Introduction 2 Classes of Objects 3 Difference of Classes 4 Application Example 5 Conclusions References The Applications of Z-numbers in the Delphi Method 1 Introduction 1.1 Related Work 2 Preliminaries 3 Method 4 Discussion 5 Example 6 Conclusions References TMBuD: A Dataset for Urban Scene Building Detection 1 Introduction 2 Edge Detection Annotated Datasets 3 Semantic Segmentation Annotated Datasets 4 Our Proposed TMBuD Dataset 5 Conclusion References Information Technology Applications-Special Session on Smart e-Learning Technologies and Applications A Complex Model of Blended Learning: Using a Project Approach to Organize the Educational Process 1 Introduction 2 Context and Review of Literature 2.1 Previous Investigation 2.2 E-Learning Integrated Information System of Sumy State University 3 Universal Complex Model of Blended Learning 4 Findings 5 Conclusions References An Engineering Solution for a Correlation Between a Competences Framework and Learning Units in an Educational Platform 1 Introduction 2 A Literature Review of the Existing Practices 3 Methodology 4 Results and Discussion 4.1 Dimensions of MOOCs Design and Delivery 4.2 An Engineering Solution for the Competences Framework and Course Learning Units Correlation 5 Evaluation 6 Practical Implementation 7 Conclusions References Ingame Design Framework 1 Introduction 2 Methodology 3 Results and Discussion 3.1 Audiovisual and Other Technical Solutions for Educational Game Design 3.2 Video-Related Choosing Between Two- and Three-Dimensional Graphics 3.3 General Technical Requirements 4 Conclusions and Recommendations for Game Design References Initial Usability Evaluation of the DigiCulture Courses on UniCampus 1 Introduction 2 Related Work 3 Evaluation of the Digiculture Courses 3.1 Methodology 3.2 Evaluation of the DigiCulture Courses on the Web Platform 3.3 Evaluation of the DigiCulture Courses on the Mobile Application 4 Results and Recommendations 5 Conclusions References Self-assessing Teachers’ Competences for Curricula Modernization Through MOOCs 1 Introduction 2 Development of the Self-assessment Tool 3 Self-assessment Tool Validation 3.1 Data Collection 3.2 Results and Discussion 4 Conclusions References Visual Educational Simulator of Pandemic: Work in Progress 1 Introduction 2 Methodology and Architecture 3 Simulated Environment 3.1 Ground Map and 2D Design 3.2 Buildings and 3D Design 3.3 Rendering 4 Virtual People 4.1 Navigational Meshes and Routing 4.2 Population Pyramid 4.3 Body Shape and Motion 4.4 Infection Model 5 Preliminary Findings 6 Conclusion References Information Technology Applications-Special Session on Language Technologies Generating Abstractive Summaries of Lithuanian News Articles Using a Transformer Model 1 Introduction 2 Previous Related Work 2.1 From n-gram to Transformer Language Models 2.2 Decoding Algorithms 2.3 Additional Techniques 2.4 Evaluation Methods 3 Data 4 Methods 5 Results 5.1 Repetition 5.2 Reshaping Probability Distribution 5.3 Best Decoding Methods 6 Conclusion and Discussion of Results A Text Sample Generation Dynamics A.1 Reference Summary A.2 Generated Summaries References How to Improve E-commerce Search Engines? Evaluating Transformer-Based Named Entity Recognition on German Product Datasets 1 Introduction 2 Related Work 3 Data Acquisition and Dataset 3.1 Data Cleansing and Preprocessing 3.2 Annotated Datasets 4 Transformer-Based NER 5 Results and Discussion 6 Conclusions References Rule-Based Chatbot Integration into Software Engineering Course 1 Introduction 2 Chatbot Design Methodology 3 Chatbot Implementation 4 Experiment 5 Conclusions References Speech Synthesis Using Stressed Sample Labels for Languages with Higher Degree of Phonemic Orthography 1 Introduction 2 Background 2.1 Tactoron 2 and Nvidia 2.2 Text Stressing 2.3 Mean Opinion Score 2.4 Other Lithuanian Text-to-Speech Synthesizers 3 Experimental Setup 3.1 Dataset 3.2 Model Configuration 3.3 Training Setup 4 Results 5 Future Work 5.1 Speech Corpus 5.2 Automatic Stressing Model 6 Conclusions References Author Index