Concepción Roldán

1.2k total citations · 1 hit paper
51 papers, 914 citations indexed

About

Concepción Roldán is a scholar working on Management Science and Operations Research, Geometry and Topology and Statistics and Probability. According to data from OpenAlex, Concepción Roldán has authored 51 papers receiving a total of 914 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Management Science and Operations Research, 15 papers in Geometry and Topology and 15 papers in Statistics and Probability. Recurrent topics in Concepción Roldán's work include Multi-Criteria Decision Making (15 papers), Fuzzy Systems and Optimization (15 papers) and Fixed Point Theorems Analysis (15 papers). Concepción Roldán is often cited by papers focused on Multi-Criteria Decision Making (15 papers), Fuzzy Systems and Optimization (15 papers) and Fixed Point Theorems Analysis (15 papers). Concepción Roldán collaborates with scholars based in Spain, Saudi Arabia and South Korea. Concepción Roldán's co-authors include Antonio Francisco Roldán López de Hierro, Juan Martínez‐Moreno, Alberto Salguero, Erdal Karapınar, Inmaculada Alemán Aguilera, Miguel Cecilio Botella López, Francisco Herrera, Y. J. Cho, Wutiphol Sintunavarat and Marwan Amin Kutbi and has published in prestigious journals such as European Journal of Operational Research, Journal of Hepatology and Computers & Education.

In The Last Decade

Concepción Roldán

49 papers receiving 876 citations

Hit Papers

Factors influencing university drop out rates 2009 2026 2014 2020 2009 50 100 150
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Factors influencing university drop out rates
    2009 179 citations Concepción Roldán, Alberto Salguero et al. Computers & Education profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Concepción Roldán Spain 16 380 176 154 100 80 51 914
Dirk Janssens Belgium 20 169 0.4× 23 0.1× 574 3.7× 692 6.9× 271 3.4× 98 1.7k
L. E. Ward United States 17 336 0.9× 97 0.6× 17 0.1× 175 1.8× 15 0.2× 49 844
Luis Manuel Sánchez Ruiz Spain 11 125 0.3× 7 0.0× 18 0.1× 96 1.0× 63 0.8× 84 495
Edwin E. Moïse United States 15 436 1.1× 4 0.0× 21 0.1× 52 0.5× 25 0.3× 56 1.0k
Frank A. Farris United States 7 77 0.2× 12 0.1× 13 0.1× 13 0.1× 44 0.6× 23 461
Phillip Kent United Kingdom 15 31 0.1× 14 0.1× 119 0.8× 332 3.3× 17 0.2× 39 604
Jürgen Lerner Germany 17 29 0.1× 47 0.3× 10 0.1× 27 0.3× 216 2.7× 42 1.1k
Paul Baum United States 17 751 2.0× 22 0.1× 7 0.0× 264 2.6× 6 0.1× 60 1.5k
Mahendra Piraveenan Australia 17 49 0.1× 91 0.5× 5 0.0× 5 0.1× 75 0.9× 57 1.0k
Ulrich Krause Germany 18 116 0.3× 65 0.4× 18 0.1× 29 0.4× 59 1.1k

Countries citing papers authored by Concepción Roldán

Since Specialization
Citations

This map shows the geographic impact of Concepción Roldán's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Concepción Roldán with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Concepción Roldán more than expected).

Fields of papers citing papers by Concepción Roldán

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Concepción Roldán. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Concepción Roldán. The network helps show where Concepción Roldán may publish in the future.

Co-authorship network of co-authors of Concepción Roldán

This figure shows the co-authorship network connecting the top 25 collaborators of Concepción Roldán. A scholar is included among the top collaborators of Concepción Roldán based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Concepción Roldán. Concepción Roldán is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hierro, Antonio Francisco Roldán López de, et al.. (2025). Fuzzy dissimilarities and the fuzzy Choquet integral of triangular fuzzy numbers on [0,1]. Fuzzy Sets and Systems. 505. 109277–109277.
2.
Sánchez‐Ojeda, María Angustías, Concepción Roldán, Lucía Melguizo‐Rodríguez, & Elvira De Luna‐Bertos. (2022). Analysis of the Lifestyle of Spanish Undergraduate Nursing Students and Comparison with Students of Other Degrees. International Journal of Environmental Research and Public Health. 19(9). 5765–5765. 6 indexed citations
3.
Roldán, Concepción, et al.. (2021). Cultural Adaptation and Validation of the Quality of Dying in Long-Term Care Scale (QoD-LTC) for Spanish Nursing Homes. International Journal of Environmental Research and Public Health. 18(10). 5287–5287. 3 indexed citations
4.
Hierro, Antonio Francisco Roldán López de, Mauricio A. Sanchez, & Concepción Roldán. (2020). Multi-criteria decision making involving uncertain information via fuzzy ranking and fuzzy aggregation functions. Journal of Computational and Applied Mathematics. 404. 113138–113138. 12 indexed citations
5.
Hierro, Antonio Francisco Roldán López de, Concepción Roldán, & Francisco Herrera. (2018). On a new methodology for ranking fuzzy numbers and its application to real economic data. Fuzzy Sets and Systems. 353. 86–110. 30 indexed citations
6.
Hierro, Antonio Francisco Roldán López de, et al.. (2016). A fuzzy regression model based on finite fuzzy numbers and its application to real-world financial data. Journal of Computational and Applied Mathematics. 318. 47–58. 24 indexed citations
7.
Roldán, Concepción, et al.. (2015). Estimation of Purkait’s triangle method and alternative models for sex assessment from the proximal femur in the Spanish population. International Journal of Legal Medicine. 130(1). 245–251. 16 indexed citations
8.
Hierro, Antonio Francisco Roldán López de, Erdal Karapınar, Concepción Roldán, & Juan Martínez‐Moreno. (2014). Coincidence point theorems on metric spaces via simulation functions. Journal of Computational and Applied Mathematics. 275. 345–355. 121 indexed citations
9.
Hierro, Antonio Francisco Roldán López de, et al.. (2014). Multidimensional fixed point theorems under (ψ,φ)-contractive conditions in partially ordered complete metric spaces. Journal of Computational and Applied Mathematics. 273. 76–87. 9 indexed citations
10.
Roldán, Concepción, et al.. (2014). Morphometric sex estimation from 3D computed tomography os coxae model and its validation in skeletal remains. International Journal of Legal Medicine. 128(5). 879–888. 43 indexed citations
11.
Karapınar, Erdal, Antonio Francisco Roldán López de Hierro, Concepción Roldán, & Juan Martínez‐Moreno. (2013). A note on ‘N-fixed point theorems for nonlinear contractions in partially ordered metric spaces’. Fixed Point Theory and Applications. 2013(1). 8 indexed citations
12.
Hierro, Antonio Francisco Roldán López de, Juan Martínez‐Moreno, & Concepción Roldán. (2012). Multidimensional fixed point theorems in partially ordered complete metric spaces. Journal of Mathematical Analysis and Applications. 396(2). 536–545. 64 indexed citations
13.
Roldán, Concepción & Ana‐Elena Guerrero‐Roldán. (2011). USING A LEARNING CONTRACT FOR STATISTICS LEARNING IN THE FIRST COURSE OF A NEW ENGINEERING DEGREE. EDULEARN proceedings. 4056–4060. 1 indexed citations
14.
Roldán, Concepción, Antonio Francisco Roldán López de Hierro, & Juan Martínez‐Moreno. (2011). A fuzzy regression model based on distances and random variables with crisp input and fuzzy output data: a case study in biomass production. Soft Computing. 16(5). 785–795. 18 indexed citations
15.
16.
Martínez‐Moreno, Juan, Antonio Francisco Roldán López de Hierro, & Concepción Roldán. (2009). KM-Fuzzy Approach Space. European Society for Fuzzy Logic and Technology Conference. 1702–1705. 2 indexed citations
17.
Roldán, Concepción, et al.. (2009). The effect of nested grid sampling on the parameter estimation of a spatial Gompertz diffusion. Stochastic Environmental Research and Risk Assessment. 24(4). 539–546. 1 indexed citations
18.
Roldán, Concepción, et al.. (2009). Factors influencing university drop out rates. Computers & Education. 53(3). 563–574. 179 indexed citations breakdown →
19.
Jáimez, Ramón Gutiérrez & Concepción Roldán. (2007). SOME ANALYTICAL AND STATISTICAL ASPECTS RELATED TO 2D LOGNORMAL DIFFUSION RANDOM FIELDS. Scientiae mathematicae Japonicae. 66(2). 255–274. 1 indexed citations
20.
García, Fernando, et al.. (1996). Relationship between viral genotype and viral load in patients with chronic hepatitis C. European Journal of Clinical Microbiology & Infectious Diseases. 15(11). 884–887. 9 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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