Cesar Otero

Dr. Cesar Otero


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2015 in Applied Soft Computing
Verified
Journal Article
Closed access
ATAkemi Galvez Tomida
Akemi Galvez Tomida
AIAndres Iglesias
Andres Iglesias
AAAndreina Avila
Andreina Avila
COCesar Otero
Cesar Otero
RARubén Arias
Rubén Arias
CMCristina Manchado
Cristina Manchado

1 April 2014 in International Journal of Information Management
Verified
Journal Article
Open access
Valentin Gomez-JaureguiValentin Gomez-Jauregui
Valentin Gomez-Jauregui
CGCecilia Gomez-Jauregui
Cecilia Gomez-Jauregui
CMCristina Manchado
Cristina Manchado
COCesar Otero
Cesar Otero
Bibliometrics and citation analysis have become an important set of methods for library and information science, as well as an exceptional source of information and knowledge for many other areas. Their main sources are citation indices, which are bibliographic databases like Web of Science, Scopus, Google Scholar, etc. However, bibliographical databases lack perfection and standardization. There are several software tools that perform useful information management and bibliometric analysis importing data from them. A comparison has been carried out to identify which of them perform certain pre-processing tasks. Usually, they are not strong enough to detect all the duplications, mistakes, misspellings and variant names, leaving to the user the tedious and time-consuming task of correcting the data. Furthermore, some of them do not import datasets from different citation indices, but mainly from Web of Science (WoS).\ud A new software tool, called STICCI.eu (Software Tool for Improving and Converting Citation Indices - enhancing uniformity), which is freely available online, has been created to solve these problems. STICCI.eu is able to do conversions between bibliographical citation formats (WoS, Scopus, CSV, BibTex, RIS), correct the usual mistakes appearing in those databases, detect duplications, misspellings, etc., identify and transform the full or abbreviated titles of the journals, homogenize toponymical names of countries and relevant cities or regions and list the processed data in terms of the most cited authors, journals, references, etc

1 March 2005 in Geomorphology
Verified
Journal Article
Closed access
Jaime BonacheaJaime Bonachea
Jaime Bonachea
VBViola Bruschi
Viola Bruschi
JRJuan Remonodo
Juan Remonodo
AGAlberto González-Díez
Alberto González-Díez
LSLuis Salas
Luis Salas
JAJosé María Aramburu
José María Aramburu

1 December 2013 in Renewable Energy
Verified
Journal Article
Closed access
CMCristina Manchado
Cristina Manchado
COCesar Otero
Cesar Otero
Valentin Gomez-JaureguiValentin Gomez-Jauregui
Valentin Gomez-Jauregui
RARubén Arias
Rubén Arias
VBViola Bruschi
Viola Bruschi
ACAntonio Cendrero
Antonio Cendrero

3 March 2018 in Symmetry
Verified
Journal Article
Open access
PDF file
AIAndres Iglesias
Andres Iglesias
ATAkemi Galvez Tomida
Akemi Galvez Tomida
PSPatricia Suárez
Patricia Suárez
MSMikio Shinya
Mikio Shinya
NYNorimasa Yoshida
Norimasa Yoshida
Valentin Gomez-JaureguiValentin Gomez-Jauregui
Valentin Gomez-Jauregui
This paper concerns several important topics of the Symmetry journal, namely, computer-aided design, computational geometry, computer graphics, visualization, and pattern recognition. We also take advantage of the symmetric structure of the tensor-product surfaces, where the parametric variables u and v play a symmetric role in shape reconstruction. In this paper we address the general problem of global-support parametric surface approximation from clouds of data points for reverse engineering applications. Given a set of measured data points, the approximation is formulated as a nonlinear continuous least-squares optimization problem. Then, a recent metaheuristics called Cuckoo Search Algorithm (CSA) is applied to compute all relevant free variables of this minimization problem (namely, the data parameters and the surface poles). The method includes the iterative generation of new solutions by using the Lévy flights to promote the diversity of solutions and prevent stagnation. A critical advantage of this method is its simplicity: the CSA requires only two parameters, many fewer than any other metaheuristic approach, so the parameter tuning becomes a very easy task. The method is also simple to understand and easy to implement. Our approach has been applied to a benchmark of three illustrative sets of noisy data points corresponding to surfaces exhibiting several challenging features. Our experimental results show that the method performs very well even for the cases of noisy and unorganized data points. Therefore, the method can be directly used for real-world applications for reverse engineering without further pre/post-processing. Comparative work with the most classical mathematical techniques for this problem as well as a recent modification of the CSA called Improved CSA (ICSA) is also reported. Two nonparametric statistical tests show that our method outperforms the classical mathematical techniques and provides equivalent results to ICSA for all instances in our benchmark.

1 September 2015 in Renewable and Sustainable Energy Reviews
Verified
Journal Article
Closed access
CMCristina Manchado
Cristina Manchado
Valentin Gomez-JaureguiValentin Gomez-Jauregui
Valentin Gomez-Jauregui
COCesar Otero
Cesar Otero