Computer Science – CACIC 2021: 27th Argentine Congress, CACIC 2021, Salta, Argentina, October 4–8, 2021, Revised Selected Papers (Communications in Computer and Information Science)

This book constitutes revised selected papers from the 27th Argentine Congress on Computer Science, CACIC 2021, held in Salta, Argentina in October 2021. Due to the COVID-19 pandemic the conference was held in a virtual mode. The 18 full papers and 3 short papers presented in this volume were carefully reviewed and selected from a total of 130 submissions. They were organized in topical sections named: intelligent agents and systems; distributed and parallel processing; computer technology applied to education; graphic computation, images and visualization; software engineering; databases and data mining; hardware architectures, networks, and operating systems ; innovation in software systems; signal processing and real-time systems; computer security; and digital governance and smart cities . Preface Organization Contents Intelligent Agents and Systems Internal Behavior Analysis of SA Using Adaptive Strategies to Set the Markov Chain Length 1 Introduction 2 Simulated Annealing 3 Markov Chain Length 4 Experimental Design 4.1 Multi-period Water Distribution Network Design 4.2 HydroGen Networks 4.3 GP-Z2-2020: A Real Network 4.4 Methodology and Experimental Setup 5 HSA Result Analysis 5.1 HSA Performance 5.2 HSA Internal Behavior 5.3 HSA Internal Behavior Using MCLa1 6 Conclusions References Distributed and Parallel Processing Performance Comparison of Python Translators for a Multi-threaded CPU-Bound Application 1 Introduction 2 Background 2.1 Numba 2.2 Cython 2.3 The Gravitational N-body Simulation 3 N-Body Implementations 3.1 CPython Implementation 3.2 Numba Implementation 3.3 Cython Implementation 4 Experimental Results 4.1 Experimental Design 4.2 CPython Performance 4.3 Numba Performance 4.4 Cython Performance 4.5 Performance Comparison 5 Conclusions and Future Work References Computer Technology Applied to Education Administrative Modular Integral System Participatory. Design in Software Development 1 Introduction 2 Context 3 Theoretical Foundations on Which SIMA is Developed 4 SIMA Platform Architecture 5 Application of Participatory Design 6 Conclusions and Future Lines References Systematic Review of Educational Methodologies Implemented During the COVID-19 Pandemic in Higher Education in Ibero-America 1 Introduction 2 Considerations About the CoI Model 3 Methodology 3.1 Characteristics of the Selected Studies 3.2 Research Strategy 4 Results 4.1 Description of the Articles Included in the SR Corpus 4.2 Didactic-Pedagogical Strategies Adopted by HEIs During the Interruption of Face-To-Face Activities. 4.3 SR Analysis Based on the Community of Inquiry 5 Discussion and Conclusion References Software Tool for Thematic Evolution Analysis of Scientific Publications in Spanish 1 Introduction 2 Proposed Methodology 2.1 Gathering the Documents 2.2 Document Analysis 2.3 Research Themes Identification 2.4 Thematic Evolution 3 Features of the Software Tool 3.1 Development Methodology 3.2 Functional Requirements 3.3 Non-Functional Requirements 4 Results 5 Conclusions and Future Lines of Work References Higher Education and Virtuality from an Inclusion Approach 1 Introduction 2 Virtual Education and Accessibility 3 Accessibility Features of the Moodle Learning Management System 4 Analysis of Videoconferencing Tools According to Disability 5 Analysis of Videoconferencing Systems by Students with Disabilities 6 Practices and Tools to Create Accessible Courses 7 General Recommendations 8 Conclusions References Graphic Computation, Images and Visualization Automatic Extraction of Heat Maps and Goal Instances of a Basketball Game Using Video Processing 1 Introduction 2 Purpose and Objectives 3 The Approach 4 Experimental Results 5 Conclusions References Software Engineering A Sound and Correct Formalism to Specify, Verify and Synthesize Behavior in BIG DATA Systems 1 Introduction 1.1 Previous Work and New Contributions 2 Feather Weight Visual Scenarios 2.1 FVS and Ghosts Events 2.2 Behavioral Synthesis in FVS 3 Fluents and FVS 3.1 Formal Proof: FVS and Fluents 4 Partial Specifications and FVS 4.1 Formal Proof: FVS and Partial Specifications 5 Simple Load Balancing Case Study 6 Shared Memory Case Study 7 Empirical Evaluation 8 Related and Future Work 9 Conclusions References Data Variety Modeling: A Case of Contextual Diversity Identification from a Bottom-up Perspective 1 Introduction 2 Previous Work 3 Our Approach in a Nutshell: Identifying Variety 4 The Bottom-up Perspective: A Case of Contextual Variety 4.1 Case Study Domain: Water Temperature Variation 4.2 Contextual Diversity Identification 5 Conclusions References Best Practices for Requirements Validation Process 1 Introduction 2 Literature Review 2.1 Search for Articles 2.2 Item Selection 2.3 Evaluation of Articles 3 Evaluation of Approaches 3.1 Definition of the “Way-of” Framework for the Evaluation of Approaches 3.2 Evaluation of Approaches According to the “Way-of” Framework 3.3 Definition of the Reference Model to Perform a Technical Review to the Evaluation of the Approaches 3.4 Evaluation of Approaches According to the reference Model for Technical Reviews 4 Comparative Analysis 5 Conclusions and Future Work References Databases and Data Mining Distribution Analysis of Postal Mail in Argentina Using Process Mining 1 Introduction 2 Process Mining 3 Process Mining Applied to Postal Distribution 3.1 Data Extraction 3.2 Process Discovery 3.3 Model Verification 3.4 Performance Analysis 4 Conclusion and Future Lines of Research References Anorexia Detection: A Comprehensive Review of Different Methods 1 Introduction 2 Analysed Methods 3 Data Set and Pilot Task 4 Experimental Study 4.1 Performance of the Different Text Representations with Standard Classifiers 4.2 Performance Comparison Between Models Using Standard Classifiers with Previous Results 4.3 Performance of the Different Deep Learning Classification Methods 4.4 Performance Comparison Between Models Using Standard Algorithms with Models Based on Deep Learning 5 Conclusions and Future Work References GPU Permutation Index: Good Trade-Off Between Efficiency and Results Quality 1 Introduction 2 Metric Space Model 2.1 Sequential Permutation Index 2.2 Quality Measures of Approximate Search 2.3 GPGPU Programming 3 GPU-Permutation Index 4 Experimental Results 5 Conclusions and Future Works References A Comparison of DBMSs for Mobile Devices 1 Introduction 2 Related Work 3 Databases for Mobile Devices 3.1 Relational DBMSs 3.2 NoSQL DBMSs 4 Experimentation 4.1 SQLite 4.2 Couchbase Lite 4.3 Firebase Realtime Database 4.4 Realm 5 Results Analysis 5.1 SQLite 5.2 Couchbase Lite 5.3 Firebase Realtime Database 5.4 Realm 5.5 Analysed DBMSs: Comparative Table 6 Conclusions and Future Work References Hardware Architectures, Networks, and Operating Systems Service Proxy for a Distributed Virtualization System 1 Introduction 2 Related Works 3 Background Technologies 3.1 M3-IPC 3.2 Group Communication System (GCS) 4 Design and Implementation of the DVS-SP 4.1 Main Service Proxy (MSP) 4.2 Client Receiver Proxy (CRP) and Server Sender Proxy (SSP) 4.3 Server Receiver Proxy (SRP) and Client Sender Proxy (CSP) 4.4 Load Balancer Monitor (LBM) 4.5 Load Balancer Agents (LBA) 4.6 Membership and Fault Tolerance 5 Evaluation 6 Conclusions and Future Works References Innovation in Software Systems Ontology Metrics and Evolution in the GF Framework for Ontology-Based Data Access 1 Introduction 2 Ontology-Based Data Access in GF 3 Measuring Ontologies with OntoMetrics 4 Experimental Results 5 A Scripting Language for OBDA and Ontology Evolution 6 Conclusions and Future Work References Ground Segment Anomaly Detection Using Gaussian Mixture Model and Rolling Means in a Power Satellite Subsystem 1 Introduction 2 Materials and Methods 2.1 Gaussian Mixture Model 2.2 Rolling Means 2.3 Other Methods 3 Results 3.1 Gaussian Mixture Model 3.2 Rolling Means 4 Conclusions 5 Future Works References Signal Processing and Real-Time Systems Prototype of a Biomechanical MIDI Controller for Use in Virtual Synthesizers 1 Introduction 2 Motivation, Objectives, and Scope 3 MIDI 4 Problem Description 5 Proposed Solution 5.1 System Components 5.2 Motion Capture 6 Software Controller 7 Final Prototype 8 Functional Verification of the Device 9 Public Repository 10 Conclusions 11 Future Works References Computer Security Introduction of Metrics for Blockchain 1 Introduction 2 Metrics 2.1 Metrics on BFA 2.2 Metrics on Hyperledger Fabric 2.3 Considerations on Applicable Metrics for Chain of Custody Assurance 3 Conclusions and Future Work References Digital Governance and Smart Cities Data Quality Applied to Open Databases: “COVID-19 Cases” and “COVID-19 Vaccines” 1 Introduction 2 Met Database Quality 2.1 ISO/IEC 25012 Database Quality Model 2.2 Metric Definitions According to ISO/IEC 25012 2.3 Assessment Model 3 Government and Open Data 3.1 Participation of Citizens in the Analysis of Open Data 3.2 Open Data: Advantages and Disadvantages 4 COVID-19 Open Databases 4.1 COVID-19 Cases in the Argentine Republic Dataset 4.2 COVID-19 Vaccines in the Argentine Republic Dataset 4.3 COVID-19 Databases Evaluation 5 Conclusions References Lexical Analysis Using Regular Expressions for Information Retrieval from a Legal Corpus 1 Introduction 2 Research Background 3 About Information Retrieval Systems 4 Named Entity Recognition 5 Regular Expressions 6 Test Development 7 Results Obtained 8 Conclusions and Future Work References Author Index