Computer Science – CACIC 2019 25th Argentine Congress of Computer Science, CACIC 2019, Río Cuarto, Argentina, October 14–18, 2019, Revised Selected Papers

Preface
Organization
Contents
Intelligent Agents and Systems
Predicting Information Quality Flaws in Wikipedia by Using Classical and Deep Learning Approaches
	1 Introduction
	2 Related Work
	3 Problem Statement and Flaw Prediction Approaches
		3.1 Problem Statement
		3.2 Flaw Prediction Approaches
		3.3 Document Model
	4 Experiments and Results
		4.1 Experimental Setting
		4.2 Results
	5 Conclusions
	References
Dynamic Tuning of a Forest Fire Prediction Parallel Method
	1 Introduction
	2 Forest Fires Prediction with ESSIM-DE
	3 Dynamic Tuning: Performance Model
	4 Experiments
	5 Conclusions
	References
Distributed and Parallel Processing
Optimization of the N-Body Simulation on Intel\'s Architectures Based on AVX-512 Instruction Set
	1 Introduction
	2 N-Body Simulation
	3 Intel\'s Architectures Based on AVX-512 Instruction Set
		3.1 Intel Knights Landing
		3.2 Intel Cascade Lake
	4 Optimization of the N-Body Simulation
		4.1 Naive Implementation
		4.2 Multi-threading
		4.3 Vectorization
		4.4 Block Processing
		4.5 Loop Unrolling
	5 Experimental Results
		5.1 Performance Results on the Intel Xeon Phi 7230
		5.2 Performance Results on the Intel Xeon Platinum 8276
		5.3 Performance and Power Efficiency Comparison Between Platforms
	6 Related Works
	7 Conclusions and Future Work
	References
Unified Power Modeling Design for Various Raspberry Pi Generations Analyzing Different Statistical Methods
	Abstract
	1 Introduction
	2 Related Work
	3 Generating a Single Power Model for Various Raspberry Pi Generations
		3.1 Prediction with the Original Model
		3.2 Generating the Unified Model
		3.3 Evaluating the Unified Model
		3.4 Validating the Unified Model
	4 Analysis of Other Statistical Models
		4.1 Support Vector Regression (SVR)
		4.2 Gaussian Regression (GR)
		4.3 Kernel Ridge Regression (KRR)
		4.4 Statistical Models Comparison
	5 Conclusions and Future Work
	References
Computer Technology Applied to Education
A Flexible Web Authoring Tool for Building Mobile Learning Experiences
	Abstract
	1 Introduction
	2 Related Work
	3 MoLE Authoring Tool
		3.1 MoLE Architecture
		3.2 Web Authoring Tool
		3.3 REST API
		3.4 Mobile Learning Application
	4 Validation
		4.1 Participants and Preparation
		4.2 Design and Execution
		4.3 Results
		4.4 Discussion
	5 Conclusions and Future Work
	Appendix
	References
Training Job Interview Online Simulator for Hearing-Impaired People
	Abstract
	1 Introduction
		1.1 Hearing-Impaired People and Their Limitations
		1.2 New and Advanced Hearing Aid Technology
		1.3 Technology as Basis of the Educational Project
	2 Conceptual Approaches
		2.1 The Emotional Influence on the Learning of Hearing-Impaired Individuals
		2.2 Design as a Contribution to Communication
		2.3 Simulators as a Pedagogical Strategy
	3 Educational Proposal
		3.1 Recipients
		3.2 Aims
		3.3 Design and Characteristics of Materials and Activities
		3.4 Technical Development
	4 Planning a Future Evaluation of the Project
		4.1 Methodology
		4.2 Sample
		4.3 Information Collecting Tools
	5 Conclusions
	6 Future Work
	References
Profiles of Thesis Students in the Field of Computer Science and Their Link with UM Research Projects
	Abstract
	1 Introduction
	2 Related Work
	3 Development
		3.1 Data Integration and Collection
		3.2 Data Selection, Cleaning and Transformation
		3.3 Data Mining
	4 Conclusions and Future Works
	References
Experience Analysis for the Use of Desafiate Serious Game for the Self-assessment of Students
	1 Introduction
	2 Background
	3 Introducing Desafiate
	4 Methodology Used in Sessions
	5 Results
		5.1 Results Obtained in the First Session
		5.2 Results Obtained in the Second Session
	6 Results Analysis
		6.1 Analysis of the ``Interest\'\' Variable
		6.2 Analysis of the Variable ``Pressure\'\'
	7 Conclusions
	References
Agility in Instructional Design. Strengthening of Digital Skills in Incoming Students at FaCENA-UNNE
	Abstract
	1 Introduction
		1.1 Digital Skills in Higher Education
		1.2 Educational Planning to Achieve Expected Results
	2 Methodological Framework
	3 Results
		3.1 Methodological Application
		3.2 Validation of the Proposal
	4 Conclusions
	Acknowledgments
	References
Graphic Computation, Images and Visualization
Overview+Detail Visual Comparison of Karate Motion Captures
	1 Introduction
	2 Previous Work
		2.1 MoCap Visualization and Overview
		2.2 Comparison of MoCaps and 3D Trajectories
	3 Data Preprocessing
	4 Dynamic Time Warping
		4.1 A Dissimilarity Measure
		4.2 Warping Function
		4.3 The Misalignment Function
	5 Detailed View
		5.1 Line and Area Graph to Show Misalignment and Differences
		5.2 Line Graph of Function G(n)
		5.3 Parallel Heat-Map Visualization
	6 Overview
	7 Implementation Notes
	8 Conclusions and Future Work
	References
Software Engineering
Exploiting Anti-scenarios for the Non Realizability Problem
	1 Introduction
	2 Background
		2.1 FVS in Aspect Orientation and Behavioral Synthesis
	3 Case Studies
		3.1 The Vessel Example
		3.2 The Halt-Exception Example
		3.3 The Exam System
		3.4 Remarks, Observations and Related Work
	4 Performance Analysis
		4.1 GOAL vs Acacia+ vs Specification Patterns
		4.2 Efficiency Comparison
		4.3 Final Observations
	5 Future Work
	6 Conclusions
	References
Software Product Line Development Based on Reusability at Subdomain Level
	1 Introduction
	2 Background and Previous Works
	3 Development Process Based on Reusability at Subdomain Level
		3.1 Step 2: Creating the Taxonomy
		3.2 Step 3: Creating Functionalities
	4 Preliminary Evaluation
		4.1 Selection of Inputs and Available Artifacts
		4.2 Evaluation Design
		4.3 Expected Results
		4.4 Evaluation Results
		4.5 Results of Step 2 - Hypothesis 1
		4.6 Results of Step 3 - Hypothesis 2
		4.7 Discussion
	5 Conclusions
	References
Evaluation of Open Source Tools for Requirements Management
	Abstract
	1 Introduction
	2 Methodology
		2.1 Survey of Tools
		2.2 Definition of Tool Functionalities
		2.3 Evaluation of Tools According to Their Functionalities
		2.4 Evaluation of Tools in Scenarios
	3 Results
		3.1 Analysis of the Tools Evaluated by Functionality
		3.2 Analysis of the Tools Evaluated in the Scenarios
	References
PWA and TWA: Recent Development Trends
	Abstract
	1 Introduction
	2 Mobile Web Applications
	3 PWA
	4 TWA
	5 Case Studies
		5.1 Transforming a Website into a PWA
		5.2 Development of a PWA + TWA
		5.3 Case Study Analysis
	6 Mobile Web Applications, PWA and PWA + TWA
	7 Conclusions and Future Work
	References
Databases and Data Mining
An Adaptive and Efficient Method for Detecting First Signs of Depression with Information from the Social Web
	1 Introduction
	2 Related Work
	3 The Proposed Method
		3.1 Concise Semantic Analysis
		3.2 k-Temporal Variation of Terms
	4 Data Sets and Error Measure
	5 Experimental Study
		5.1 Setting the k Parameter
		5.2 Performance of k-TVT - eRisk\'s Train and Testing Sets
		5.3 Final Discussion
	6 Conclusions and Future Work
	References
Heuristics for Computing k-Nearest Neighbors Graphs
	1 Introduction
	2 Previous Concepts
	3 Our Proposals
	4 Experimental Results
		4.1 Comparison with Methods Using Indexes
	5 Conclusions
	References
MeTree: A Metric Spatial Index
	Abstract
	1 Introduction
	2 Related Work
		2.1 Metric Indexes
		2.2 Spatial Indexes
	3 Metric Spatial Model
	4 MeTree: A Metric Spatial Access Method
	5 Experimental Evaluation
	6 Conclusions and Future Work
		6.1 Future Work
	References
Hardware Architectures, Networks and Operating Systems
Study of Video Traffic in IPv6 Multicast IEEE 802.11ac Test Bed
	Abstract
	1 Introduction
	2 State of the Art
		2.1 IP Multicast
		2.2 Video Codec
		2.3 Video Streaming
		2.4 IEEE 802.11ac Standard
		2.5 Internet Protocol Version 6 – IPv6
	3 Scenarios and Experimental Resources
		3.1 Network Topology
		3.2 Videos
		3.3 Methods and Procedures
		3.4 Metrics
	4 Results
		4.1 H.264 Codec Behavior
		4.2 H.265 Codec Behavior
		4.3 Theora Codec Behavior
		4.4 VP8 Codec Behavior
	5 Conclusions
	References
Innovation in Software Systems
Materialization of OWL Ontologies from Relational Databases: A Practical Approach
	1 Introduction
	2 Materialization of OWL Ontologies from Relational Databases
	3 Visual Mapping Specification
	4 Specification of Schemas for CSV Files
	5 Experimental Evaluation
	6 Case Study: Support for e-Gov in Municipalities
	7 Related Work
	8 Conclusions and Future Work
	References
New Application of the Requirements Elicitation Process for the Construction of Intelligent System-Based Predictive Models
	Abstract
	1 Introduction
	2 Proposed Process
	3 Application of the Process in Case Study of a Medical Office
		3.1 Application of the Project Definition Phase
		3.2 Application of the Business Process Elicitation Phase
		3.3 Application of the Business Process Data Elicitation Phase
		3.4 Application of the Business Data Conceptualization Phase
		3.5 Application of the Initial Specification of the Intelligent System Phase
	4 Conclusions
	References
Signal Processing and Real-Time Systems
Localization System Using Artificial Landmarks for Indoor Low-Cost Mobile Robots
	1 Introduction
	2 Related Work
	3 Architecture
		3.1 Hardware Architecture
		3.2 Software Architecture
	4 Results
		4.1 Execution Time
		4.2 Accuracy
	5 Conclusion and Future Work
	References
Computer Security
Lightweight Cryptography in IIoT the Internet of Things in the Industrial Field
	Abstract
	1 Introduction
	2 Lightweight Algorithms Based on Stream Ciphers
	3 Lightweight Algorithms Based on Block Ciphers
	4 Lightweight Algorithm Design Strategies
		4.1 General Algorithm Structure
		4.2 Key Schedule
		4.3 Linear and Non-linear Operations
		4.4 Linear Operations
		4.5 Sponge Constructions
	5 Exploitation of Security Deficiencies in IoT Devices
		5.1 DoS and DDoS Attacks
		5.2 DDoS in IoT Devices
	6 Conclusions and Future Work
	Acknowledgments
	References
A Better Infected Hosts Detection Combining Ensemble Learning and Threat Intelligence
	Abstract
	1 Introduction
	2 Ensemble Learning Techniques
	3 Ensemble Learning Applied to Network Security
	4 Ensemble Learning to Improve Detection of Infected Machines
	5 Ensemble Learning Applied to Network Security to Classify Flows
	6 Ensemble Learning Applied to Network Security to Classify All Flows Associated to a Source Address and Destination Address
	7 Ensemble Learning Using Thread Intelligence Information, a Next Step
	8 Conclusions and Future Work
	References
Innovation in Computer Science Education
Experiences in the Use of ICT and Digital Ramps for Students in Tertiary Education with Visual or Hearing Impairment
	Abstract
	1 Introduction
	2 The Use of M-Free Didactic Model
		2.1 M-Free Model
		2.2 B-Free Simplified Model
		2.3 M-Free Based Educational Experiences with ICT
		2.4 Digital Ramps
		2.5 Evaluation
	3 Study Cases
		3.1 Methodology
		3.2 Digital Skills
		3.3 Case 1: Visually Impaired - Desktop Application with Database
		3.4 Case 2: Hearing Impaired - Website
	4 Conclusions and Future Work
	Acknowledgments
	Appendix A. Wikinclusion Knowledge Base
	Appendix B. Added Digital Competency Codes
	References
Primary Level Teachers Training in Computer Science: Experience in the Argentine Context
	Abstract
	1 Introduction
	2 Development of the Specialization: Design, Context and Students’ Profiles
		2.1 Design: Objectives and Main Cornerstones
		2.2 The Students Profiles
	3 Results
		3.1 Partial Results in the First Year of the Course
		3.2 Relevant Results at the End of the Specialization
	4 Conclusions
	Acknowledgements
	References
Computational Thinking Skills in Primary Teachers: Evaluation Using Bebras
	Abstract
	1 Introduction
	2 The Experience
		2.1 Population
		2.2 Methodology
	3 Results
	4 Related Work
	5 Conclusion and Future Works
	Acknowledgments
	References
Digital Governance and Smart Cities
Taxonomic Analysis of Mobile Applications for Government Services in Cities from Argentina
	Abstract
	1 Introduction
	2 Mobile Devices for the Services Delivery
		2.1 Use of Mobile Devices Today
		2.2 Mobile Public Services Delivery
		2.3 Application Cases in Latin America
	3 Taxonomies
		3.1 A Taxonomy Description
		3.2 A Taxonomy Creation
	4 Mobile Applications in Cities from Argentina
		4.1 Selected Cities
		4.2 Search for Official Applications in the Selected Cities
	5 Taxonomy for Mobile Applications
		5.1 Creation of a Taxonomy by the Analysis of Mobile Applications
		5.2 Classification of Applications According to the Taxonomy
	6 Conclusions
	Acknowledgments
	References
Author Index