FQM355: OREL-RESOURCE OPTIMIZATION, STATISTICS, TRANSPORTATION and LOGISTICS

Submitted by francisco.grimaldi on Mon, 08/31/2020 - 19:43
University
Faculty/school/department
SCIENCES FACULTY/STATISTICS AND OPERATIONAL RESEARCH/STATISTICS AND OPERATIONAL RESEARCH
Size of the team
number of researchers number of supporting staff number of PhD students
10
0
0
Composition of Joint Unit of Research, if relevant

The research team is located in the Faculty of Sciences of the University of Cadiz, at the Campus of Puerto Real, and integrated within the University Institute of Research for Sustainable Social Development-INDESS. Since its creation in 2006, it has grown to currently have 10 members, of which 8 are doctors, 6 of them women.

One of the lines of research on which most work is being done in recent years is related to the planning of logistics systems. We have been making applications of our results to problems arising from real situations in the industry. Using Operational Research techniques, we analyse any problem that integrates one or more of the relevant elements in the planning. The objective is to create realistic mathematical models, which effectively help decision-making and system monitoring. The fundamental tools at our disposal are mathematical programming and simulation.

In order to achieve a better management of resources, it is necessary to analyse a large amount of data of very different types. To obtain effective solutions it is necessary to apply Big Data techniques. Our group works by providing models, tools and procedures to solve optimization problems associated with intensive data classification, paying special attention to the development of flexible models and the selection of features in supporting vector machines.

Another of the basic lines that are studied in the group framed within the Statistics is that of the statistical analysis of data, exploratory analysis techniques are proposed with the aim of describing starting states in different environments, very useful in the business field for the detection of problems. As well as prediction studies, focusing on the essential factors of the study in order to improve decision-making in the business environment. All the members of the group are trained in this type of techniques. In the actuarial field, a line of research is currently being developed with some members in which various premium principles are proposed that incorporate the insurer's risk aversion.

PI
PI name
Mª INMACULADA ESPEJO MIRANDA
PI bio

ORCID ID: 0000-0002-8905-7825

PHD. in Mathematics Cum Laude from the University of Cadiz in December 2009, with an extraordinary PhD. Currently, associate professor at the University of Cadiz.

In 2002 she joined the research group FQM270 (TeLoYDisRen). From the beginning, her research activity has been related to Operational Research and Optimization, more specifically with models and procedures for solving location problems. In 2007 she obtained a FPI grant from the excellence project with reference P06-FQM-01364 to carry out her doctoral thesis entitled "Simultaneous location of service with alternative transport system. Orderly problems and minimum envy". During this period, he made different stays in universities and research centers both national and international, where she began to collaborate with prestigious specialists in the field of Combinatorial Optimization.

In 2011, she obtains the accreditation of Doctor Assistant by the AGAE. In 2013, she obtains the accreditation of Doctor Contractor and later, in 2016, the accreditation of University Holder by the ANECA. In 2017, the first six-year period is recognized.
 
Regarding her publications, it is worth mentioning that they are all in journals indexed in the ISI Journal Citation Report, within the category of Operations Research & Management Science, seven of them in the first quartile, as well as co-editor of six books of conference proceedings.

She has participated in 20 R&D projects financed in public calls since 2005 and in two R&D contracts (National R&D contract art. 11/45 LRU ¿ 68/83 LOU). Since April 2017 he is the researcher in charge of the research group FQM355-OREL (Resource Optimization, Statistics, Transport and Logistics). Currently, he is participating in a project of the BBVA Foundation for Scientific Research Teams in Big Data 2019 called "Complex networks meet data science", in the project "Challenges of combinatorial optimization in large-scale complex network models and data science" within the R&D&I Projects (PAIDI 2020, BOJA n. 203, 19/10/2018) and in the project "Big Data Classification via Mathematical Programming" of R&D&I projects within the framework of the ERDF Andalusia 2014-2020 operational program.

Its activities related to congresses, both national and international, are frequent since 2003. She has contributed with about 30 papers, organized 8 congresses, and attended other 6 seminars.  She is a member of several networks and societies related to Operational Research and location issues and also evaluates articles in journals in the area such as "Computer and Operations Research", "European Journal of Operational Research" and "Optimization Letters".

As regards the direction of research work, she has directed several end of degree and master's degree projects related to Combinatorial Optimization.

 

Contact person and e-mail
Contact person
Mª INMACULADA ESPEJO MIRANDA
Contact person e-mail
WWW
Short description of research profile

Our group works by providing models, tools and procedures to solve optimization problems associated with intensive data classification, paying special attention to the development of flexible models and feature selection on supporting vector machines. In order to do that, we use techniques of Linear and Nonlinear Integer Mathematical Programming.

The experience of its members in algorithmic aspects of optimization problems is outstanding, both from the point of view of the development of resolution procedures (exact and heuristic), and in their corresponding implementation and subsequent computational analysis. In this group, the experience in the study of probability distributions, fundamental to approach the simulation tasks, also stands out.

Another of the basic lines that are studied in the group framed within the Statistics is that of the statistical analysis of data, exploratory analysis techniques are proposed with the aim of describing starting states in different environments, very useful in the business field for the detection of problems. As well as prediction studies, focusing on the essential factors of the study in order to improve decision-making in the business environment. All the members of the group are trained in this type of techniques. In the actuarial field, a line of research is currently being developed with some members in which various premium principles are proposed that incorporate the insurer's risk aversion.

Publications

Representative publications

1. Capacitated p-center problem with failure foresight Espejo, Inmaculada; Marín, Alfredo; Rodríguez-Chía, Antonio Manuel European Journal of Operational Research. 2015. Vol. 247. Pgs. 229-244
2. On a family of risk measures based on largest claims Castaño-Martínez, Antonia, Pigueiras, Gema; Sordo, Miguel Ángel. Insurance: Mathematics and Economics. 2019. Vol: 86. Pgs. 92-97
3. On the global convergence of a generalized iterative procedure for the minisum location problem with lp distances for p>2 Rodríguez-Chía, Antonio Manuel; Valero, Concepción. Mathematical Programming.2013. Vol: 137. Pgs. 477-502.
4. Ordered median hub location problems with capacity constraints Puerto, Justo; Ramos, Ana Belén; Rodríguez-Chía, Antonio Manuel; Sánchez-Gil, Carmen Transportation Research Part C. Vol. 70. Pgs. 142-156
5. Tightening big Ms in Integer Programming Formulations for Support Vector Machines with Ramp Loss Baldomero, Marta; Martínez-Merino, Luisa Isabel; Rodríguez-Chía, Antonio Manuel European Journal of Operational Research. 2020. To be appeared.

Link to extended list of publication

Technology Expertise

- Study of cost optimization in the production chain of the company “ECOLÓGICOS Y IV GAMA" (OT2008/125). C: A. Castaño.
- Study and search of optimal locations for the location of a new point of sale of a chain of restaurants. (OT2008/126). C: A.M. Rodríguez-Chía