Proceedings of the Fourth International Workshop on Knowledge Discovery, Knowledge Management and Decision Support

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49 articles

Multivalued Fuzzy Logics: A Sensitive Analysis

Pablo Michel Marin Ortega, Rafael Espín Andrade, Jorge Marx Gómez
The main goal of this research is develop a sensitive analysis (SA) among some fuzzy operators, to ask the question: which is the most robustness fuzzy operators The fuzzy operators consider in this study are: Zadeh operators, Probabilistic operators and finally the compensatory fuzzy logic operators:...

Linguistic Interpretation of Mathematical Morphology

Agustina Bouchet, Gustavo Meschino, Marcel Brun, Rafael Espín Andrade, Virginia Ballarin
Mathematical Morphology is a theory based on geometry, algebra, topology and set theory, with strong application to digital image processing. This theory is characterized by two basic operators: dilation and erosion. In this work we redefine these operators based on compensatory fuzzy logic using a linguistic...

Knowledge discovery by Compensatory Fuzzy Logic predicates using a metaheuristic approach

Marlies Martínez Alonso, Rafael Espín Andrade
Compensatory Fuzzy Logic (CFL) is a logical system, which enables an optimal way for the modeling of knowledge. Its axiomatic character enables the work of natural language translation of logic, so it is used in knowledge discovery and decision-making. In this work we propose a general and flexible approach...

Learning of Fuzzy Cognitive Maps for simulation and knowledge discovery

Gonzalo Napoles, Isel Grau, Ricardo Pérez-García, Rafael Bello
In recent years Fuzzy Cognitive Maps (FCM) has be-come a useful Soft Computing technique for modeling and simulation. They are connectionist and recurrent structures involving concepts describing the system be-havior, and causal connections. This paper describes two abstract models based on Swarm Intelligence...

Fuzzy Clustering Approach for Non-cooperative Behavior Detection in Consensus Reaching Processes

Ivan Palomares, Luis Martínez, Francisco Herrera
Consensus reaching processes in group decision making attempt to reach a mutual agreement amongst experts before making a common decision. Classical consensus models are focused on problems where few decision makers participate. However, new societal and technological trends may require a large number...

Discovery of fuzzy predicates in database

Taymi Ceruto Cordovés, Orenia Lapeira Mena, Alejandro Rosete Suárez, Rafael Espín Andrade
Advanced technologies have enabled us to collect large amounts of data. These data may be transformed into use-ful knowledge. Because of our limited ability to manually process the data, it is necessary to use automatic tools to mine useful knowledge. Many data-mining methods have been proposed which...

Rationality of two fuzzy negotiation solutions by Knowledge Engineering to n-person cooperative games

Erick González, Rafael A. Espín, Gustavo Mazcorro, Salvador Muñoz
The aim of this paper is to prove the rationality of two new fuzzy solutions to cooperative n-person games. They are the Fuzzy Negotiation Solution by Knowledge Engineering and Compensatory Negotiation Solution by Knowledge Engineering, which are based on bargaining over statements coming from experts....

Existence and uniqueness of two fuzzy solutions to cooperative games

Erick González, Rafael A. Espín, Gustavo Mazcorro, Rafael Espín
(FNSKE) and Compensatory Negotiation Solution by Knowledge Engineering (CNSKE) are two new solution concepts to n-person cooperative games. They involve a quantitative index, called Good Deal Index (GDI), which is the matrix solution of a recurrent equation. The existence and uniqueness of the GDI entail...

Fuzzy constraints in the Truck and Trailer Routing Problem

Isis Torres, Alejandro Rosete, Carlos Cruz, José Luis Verdegay
Techniques based on Soft Computing are useful to solve real-world problems where decision makers use subjective knowledge when making decisions. In many problems in transport and logistics it is necessary to take into account that the available knowledge about the problem is imprecise or uncertain. Truck...

Incorporation of Fuzzy Logic to the Black-Scholes Model in Exchange Option Pricing

Manuel Muñoz Palma, Ezequiel Avilés Ochoa
Since the introduction of the uncertainty theory, a new paradigm in economy and finance is formed with the in-corporation of new models that allow a greater degree of accuracy to the reality of the environment of organiza-tions based on the fuzzy logic theory. This article empha-sizes the importance...

Support Rough Sets for decision-making

Yenny Villuendas-Rey, Maria M. Garcia-Lorenzo, Rafael Bello
Case-based reduction is viewed as an important prepro-cessing step for case based decision-making. In this pa-per, is introduced a Support Rough Set model to deal with mixed and incomplete data. The Support Rough Set mod-el is used to reduce the case base by using positive and limit regions of decision....

Characterization of neighborhood operators for covering based rough sets, using duality and adjointness

Mauricio Restrepo, Chris Cornelis, Jonatan Gómez
Covering based Rough Sets are an important generalization of Rough Set Theory. Basically, they replace the partition generated from an equivalence relation by a covering. In this context many approximation operators can be defined [16, 26, 27, 28, 34]. In this paper we want to discover relationships...

Prioritization of Software Requirements: a Cognitive Approach

Martin Azzolini, Lucia Isabel Passoni
This approach provides a novel methodology for address-ing a well-known problem of Software Engineering, the prioritization of software requirements. The proposal combines the use of tools such as the Analytic Hierarchy Process (AHP), the Self-Organizing Maps (SOM) and al-so methods belonging to the...

Proactive selection of metaheuristics based on knowledge of previous results

Alejandro Rosete-Suárez, Mailyn Moreno-Espino
This paper presents two proactive algorithms that act as meta-metaheuristic agents: they decide which metaheuristic will be used to solve a new problem. These meta-metaheuristic agents operate in the environment of iterative work on optimizing problems, with the goal of selecting good metaheuristics...

Solution of the 3D Stochastic Stowage Planning for Con-tainer Ships through Representation by Rules

Anibal Tavares de Azevedo, Edilson Fernandes de Arruda, Luiz Leduino de Salles Neto, Antônio Augusto Chaves, Antônio Carlos Moretti
This paper formulates the 3D Stochastic Stowage Plan-ning (3D SSP) problem. The key objective of 3D SSP is to minimize the number of container movements and maximize the ship´s stability considering multiple scenar-ios. The binary formulation of this problem is described and an alternative formulation,...

An analysis about the measure quality of similarity and its applications in machine learning

Yaima Filiberto, Rafael Bello, Yaile Caballero, Mabel Frias
In this paper, a review about the quality of the similarity measure and its applications in machine learning is presented. This measure is analyzed from the perspective of the granular computing. The granular computing allows analyzing the information at different levels of abstraction and from different...

Simulated Annealing and Variable Neighborhood Search Hybrid Metaheuristic for the Geographic Clustering Simulated Annealing and Variable Neighborhood Search Hybrid Metaheuristic for the Geographic Clustering Simulated Annealing and Variable Neighborhood Search Hybrid Metaheuristic for the Geographic

María Beatríz Bernábe Loranca, David Pinto Avendaño, Elias Olivares Benitez, Javier Ramírez Rodríguez, José Luis Martínez Flores
In this work we present a new hybrid approach for solv-ing the clustering problem for geographic data, which is known to be NP-hard. Two metaheuristics that have prov-en efficiency in combinatory optimization problems have been chosen for the comparison: Simulated Annealing (SA) and Variable Neighborhood...

Using MCDA to enable individual preference-based matchmaking in the sustainable mobility domain

Sven Kölpin, Daniel Stamer, Benjamin Wagner vom Berg
This work provides a foundation to make heterogeneous alternatives for mobility (transportation modes) compara-ble in the context of sustainability and providing possi-bilities to also compare them in other contexts such as costs or flexibility. The key to a successful comparison of such transportation...

An Empirical Analysis of Competitiveness on Cities of Sinaloa, Mexico with an Outranking Method

Pavel A. Alvarez Carillo, Martín León Santiesteban, Diego A. Gastelum Chavira, Luis A. Vega Osuna
This work aims to develop an Empirical Analysis of Des-tination Competitiveness of three main cities of Sinaloa, Mexico with a well-known Crouch-Ritchie model. This problem is approached as a multicriteria ranking problem with an outranking method and a multicriteria group deci-sion support system to...

Handling incomplete information in the framework of THESEUS multicriteria sorting method

Jorge Navarro, Eduardo Fernandez, Rafael Olmedo
In this paper we face the multicriteria sorting problem considering that we have incomplete information. Multicriteria sorting is a particular case of classification problems. It consists in the assignment of some actions to some pre-defined classes. Classification refers to prob-lems where the classes...

Multicriteria optimization of interdependent project portfolios with ‘a priori’ incorporation of decision maker preferences

Laura Cruz, Eduardo R. Fernandez, Claudia G. Gomez, Gilberto Rivera
One of the most important management issues lies in determining the best portfolio of a given set of investment proposals. This decision involves the pursuit of multiple criteria, and has been commonly addressed by implementing a two-phase procedure whose first step identifies the efficient solution...

Preference Incorporation into Evolutionary Multiobjective Optimization using Preference Information Implicit in a Set of Assignment Examples

Laura Cruz-Reyes, Eduardo Fernandez, Rafael Olmedo, Patricia Sanchez, Jorge Navarro
Nowadays, most approaches in the evolutionary multiobjective optimization literature concentrate mainly on adapting an evolutionary algorithm to generate an ap-proximation of the Pareto frontier. However, this does not solve the problem. We present a new idea to incorporate into a MOEA the Decision Maker...

A Multiobjective Evolutionary Approach to a Medium- Sized Multicriteria Ranking Problem A Multiobjective Evolutionary Approach to a Medium- Sized Multicriteria Ranking Problem

Juan Carlos Leyva López, Jesús Jaime Solano Noriega, Diego Alonso Gastélum Chavira, Maria De los Dolores Sánchez Castañeda
The framework of multiobjective optimization is used to tackle the multicriteria ranking problem. The conceptual advantages of the multiobjective formulation are discussed and a new multiobjective evolutionary algorithm is introduced with the purpose of transforming a known valued outranking relation...

Partially Mixed Duopoly and Oligopoly: Consistent Conjectural Variations Equilibrium (CCVE). Part 1

Vyacheslav V. Kalashnikov, Nataliya I. Kalashnykova, J. Fernando Camacho
In this paper, we consider a model of partially mixed duopoly with conjectured variations equilibrium (CVE). The agents’ conjectures concern the price variations depending upon their production output’s increase or decrease. We establish existence and uniqueness results for the conjectured variations...

Partially Mixed Duopoly and Oligopoly: Consistent Conjectural Variations Equilibrium (CCVE). Part 2

Vyacheslav V. Kalashnikov, Nataliya I. Kalashnykova, J. Fernando Camacho
In this paper, a model of partially mixed oligopoly with conjectured variations equilibrium (CVE) is studied. The agents make conjectures concerning the price variations depending upon their production output’s fluctuations. Existence and uniqueness results for the conjectured variations equilibrium...

Applying Pareto meta-analysis in location selection for photovoltaic plant

Daymi Morales Vega, María Teresa Lamata Jiménez, Alejandro Rosete Suárez, Juan M. Sánchez-Lozano
In decision-making situations, it is common to have a set of alternatives and to choose the best among them or to estab-lish a ranking. Multi-criteria decision methods can be ap-plied to obtain different rankings, even though the set of al-ternatives and criteria are the same. Considering this, the idea...

Towards a Formal Model for ECG Data Analysis and Decision Making

Oswaldo Cuen Tellez, Ines F. Vega Lopez
ECG sequences databases lack of a formal way to model analysis and query operations. In the pursuit of such a formal model, the definition of relevant primitive operators is necessary. We identify the convolution operator of sequences as one of those primitive operators. We take two QRS detection algorithms...

Project Ranking-Based Portfolio Selection Using Evolutionary Multiobjective Optimization of a Vector Proxy Impact Measure

S. Samantha Bastiani, Laura Cruz, Eduardo Fernandez, Claudia Gómez, Victoria Ruiz
Selecting project portfolios Decision-Maker usually starts with limited information about projects and portfo-lios. One of the challenges involved in analyzing, search-ing and selecting the best portfolio is having a method to evaluate the impact of every project and portfolio in order to compare them....

MILP for selecting portfolio of R&D projects in public organizations with partial and full resource allocation policies

Nancy Maribel Arratia Martínez, Fernando López Irarragorri
In general, the problem of R&D project portfolio selec-tion (RDPPS) is to choose a set of project proposals that optimize certain impact measures designated by the deci-sion maker. In this paper we present a MILP model, that incorporates the most relevant aspects of the problem found in the literature,...

SADGAGE: A MCGDSS to Solve the Multicriteria Ranking Problem in a Distributed and Asynchronous Environment

Juan Carlos Leyva López, Pável Anselmo Álvarez Carrillo
This paper presents a Web-based Multicriteria Group De-cision Support System for solving multicriteria ranking problems: how to rank a set of alternatives - having eval-uations in terms of several criteria - in decreasing order of preference by a collaborative group of decision makers in sequential or...

Non-Transitive Binary Relation of Preference in the Case of Random Value Functions, Derived from REPOMP

Natalia D. Nikolova, Snejana Ivanova, Gergana Georgieva, Kiril Tenekedjiev
This work analyses decision making situations, where the quantity of the value function associated with the alternatives is a random number with known distribution. The main contribution of the paper is that alternatives are grouped into pseudo indifference classes, where the alternatives are indifferent...

Performance analysis of the academic units at Universidad Nacional de Córdoba

Catalina Lucía Alberto, Claudia Carignano
The Universidad Nacional de Córdoba founded in 1613 is the oldest and one of the largest in the country. In 2011 it had 121,476 undergraduate students, 9,156 teaching positions and 83 degree programs. The university has 13 academic units, two pre-college high schools, two teaching hospitals and a blood...

Audits and logistic regression, deciding what really matters in service processes. A case study of a government funding agency for research grants

Robert Wayne Samohyl
Governmental agencies, businesses and nongovernmental organizations experience repetitive and out-of-date processes causing resource waste. Banks, credit card companies and tax authorities must evaluate whether creditors have fulfilled their obligations, and funding agencies should verify the use of...

Study of the industrialization-ability of the production of mescal in Guerrero-Mexico

Sira Allende, Carlos Bouza, Dante Covarrubias, Housila Sharkar
We considered the modeling of the evaluation of projects for industrializing the artisanal production of mescal. A Decision Support system is modeled for determining the priorities of the tasks. The ability for evaluating projects is considered. Data provided from a large research developed in Guerrero...

A Complex Mining Process about Air Quality

Mihaela Juganaru-Mathieu, Silvia González Brambila
In this paper we present a mining project about extracting knowledge from public documents concerning air pollution. Our collection contains annual reports about air quality, acid rains, climatological conditions in the large area of Mexico City. These reports contain reliable data and are generated...

High Cardiovascular Risk Models for a city in the Central Region of Cuba

Gladys M. Casas-Cardoso, Jorge Luis Morales-Martínez, Lisset Denoda-Pérez, Leidys Cabrera-Hernández, Lucía Argüelles-Cortés, Emilio González-Rodríguez
This research is based on the study of a real database, in order to determine the factors of the High Cardiovascular Risk in the city of Santa Clara, in the Central Region of Cuba. Mathematical models of the high risk index, consid-ering the characteristics of the population of the city are obtained....

Compensatory Fuzzy Logic Uses in Business Indicators Design

Pablo Michel Marin Ortega, Patricia Pérez Lorences, Jorge Marx Gómez
Most of the information needed for the management in the decision making process is essentially based on sub-jective and imprecise concepts expressed primarily by "experts" in a natural language or based in simples indica-tors and it’s not capable to check the strategy in a more integral way. In the...

Semantic Enhancement of Learning Object Repositories

Felix Fernández-Peña, Yariel Ramos-Moreno, Yudit Ponce-Toste
Trying to combine the easy-to-use tag-based annotations and the accurateness of structured formal annotations, a semantic enhancement of learning object repositories is proposed in this paper. Its potential impact to accessibility in the user experience is evaluated whilst similarities and differences...

Using OpenCyc and Domain Ontologies for Ontology Learning from Concept Maps

Amhed Suárez-Rodríguez, Alfredo Simón-Cuevas, José A. Olivas
In this paper, an extended method for ontology learning from concept maps is presented. Concept maps are a flex-ible and informal knowledge representation, while ontol-ogies are semantically formalized representations oriented to be processing by intelligent systems. The mapping be-tween them is a formal...

Time Series Classification using Motifs and Characteristics Extraction: A Case Study on ECG Databases

André G. Maletzke, Huei D. Lee, Gustavo E.A.P.A. Batista, Solange O. Rezende, Renato B. Machado, Richardson F. Voltolini, Joylan N. Maciel, Fabiano Silva
In the last decade, the interest for temporal data analysis methods has increased significantly in many application areas. One of these areas is the medical field, in which temporal data is in the core of innumerous diagnosis exams. However, only a small portion of all gathered medical data is properly...

Method and System for Real-Time Audio and Video Transmission of Colonoscopy Exams: A Study Case on a Local Network

Renato Bobsin Machado, Huei Diana Lee, Joylan Nunes Maciel, Richardson Floriani Voltolini, André G. Maletzke, Claudio Saddy Rodrigues Coy, João José Fagundes, Feng Chung Wu
Telemedicine can facilitate the examination and diagnosis of patients in locations with lack of resources and medical experts. This paper presents an innovative method and a computer system that allows real-time text, voice and video interaction among participants and data sharing of colonoscopy exams...

Analytical and Experimental Study of Filter Feature Selection Algorithms for High-dimensional Datasets

Adrian Pino, Carlos Morell
In this paper a new taxonomy for feature selection algorithms created for high-dimensional datasets is proposed. Also, several selectors are described, analyzed and evaluated. It was observed that the Cfs-SFS algorithm reached the best solutions in most of the cases. Nevertheless, its application in...

The knowledge transfer in educative institutions: a local study

Flor De la Cruz Salaiza Lizárraga, Lina Marcela Díaz Santamaría, Luis Alfredo Vega Osuna, Pável Anselmo Álvarez Carrillo, Rogelio Quijano
The present research analyzes the management of the knowledge with regard to its transfer in an educational institution located in Medellin, Colombia. A mixed re-search approach was used by conducting survey to 25 teachers, in order to measure the knowledge transfer made after taking a training course...

Context-aware Spatial Decision Support Systems (CA-SDSS): Articulating Decision Support Systems, Business Intelligence and Recommender Systems considering the geospatial component

Tatiana Delgado, Guillermo González, Giosvany Miranda, David G. Navarro, Ariel Graverán
Underpinned by the vertiginous progress of Informatics and Communication Technologies, new evolutions of de-cision technologies are coming with the consequent bene-fit for decision makers and users in general. The integra-tion of Geographical Information Systems (GIS) and De-cision Support Systems (DSS)...

Integrated Analysis of the linkage between the Strategic Alignment Maturity Level and the Information and Communication Technology Evaluation Management

Rodolfo Alberto Pérez Estrada, Liliana Angélica Guerrero Ramos, José Leonel García Sánchez, Rafael Palacios Torres
The integration between the Business and Information Technologies (IT) has become one of the main priorities in today’s organizations. To face this issue, the results of this investigation have been centered in efforts to link a model to identify the level of maturity of the strategic integration of...

Ontology-based Dynamic Building of Relational Data Views

Yudit Ponce-Toste, Maikel Pérez-Gort, Felix Fernández-Peña, Jyrki Nummenmaa
Traditionally, data views are seen as static, syntactically correct, data sets. The semantics of the data is not explicitly encoded in RDB (relational databases) but implicitly on the application level. However, the needs to create context-aware browsing methods in changing scenarios are demanding more...

A GIS-based Spatial Decision Support Tool Based on Extended Belief Rule-Based Inference Methodology

Alberto Calzada, Jun Liu, Hui Wang, Anil Kashyap
Nowadays, most Spatial Decision Support Systems (SDSSs) are designed to solve a specific problem in a given region. This fact makes rather difficult or even im-possible to develop comparative analyses and studies among different solutions. This research presents a ge-neric rule-based spatial decision...

Use of a Decision Support Model for Information Technology Evaluation in Cuban Enterprises

Dania Pérez Armayor, Diley Hernández Lantigua, Eduardo O. León Alen, José A. Díaz Batista
The need to satisfy a more demanding customer in a scenery where deadlines and costs must be ever smaller to maintain competitiveness, together with increased uncertainty about demand, has been leading organizations to collaborate to such a level that now the competition is not between isolated enterprises,...

Data integration in Cloud Computing environment

Fernando De la Prieta, Sara Rodríguez, Javier Bajo, Vivian F. Lopez Batista
Information processed by applications is usually stored in databases or filing systems, allowing each system to use its own interface. As the files are not stored transparently, it is necessary to define data models to efficiently manage the information. This study proposes a process for storing information...