Departament d'Estadística i Investigació Operativa

Recent Submissions

  • What is beautiful is still good: the attractiveness halo effect in the era of beauty filters 

    Gulati, Aditya; Martínez García, Martina; Fernández Martínez, Daniel; Lozano Ortega, Miguel Ángel; Lepri, Bruno; Oliver Ramírez, Nuria (Royal Society, 2024-11)
    Article
    Open Access
    The impact of cognitive biases on decision-making in the digital world remains under-explored despite its welldocumented effects in physical contexts. This paper addresses this gap by investigating the attractiveness halo ...

  • Copula-based non-metric unfolding on augmented data matrix 

    Nai Ruscone, Marta; Fernández Martínez, Daniel; D'Ambrosio, Antonio (2024-11-21)
    Article
    Restricted access - publisher's policy
    A multidimensional unfolding technique that is not prone to degenerate solutions and is based on multidimensional scaling of a complete data matrix is proposed. We adopt the strategy of augmenting the data matrix, trying ...

  • Baleen stable isotopes reveal climate-driven behavioural shifts in North Atlantic fin whales 

    Ruíz Sagalés, Marc; García Vernet, Raquel; Sánchez Espigares, Josep Anton; Halldórsson, Sverrir D.; Chosson, Valerie; Sigurðsson, Guðjón M.; Vighi, Morgana; Lloret Cabot, Roger; Borrell, Asunción; Aguilar, Alex (Elsevier, 2024-12-10)
    Article
    Open Access
    Climate variability impacts the structure and functioning of marine ecosystems and can trigger behavioural responses in organisms. We investigated whether such variability modulates diet and migration in the North Atlantic ...

  • Formalizing sustainable urban mobility management: an innovative approach with digital twin and integrated modeling 

    Grotto, Andrea; Fonseca Casas, Pau; Zubaryeva, Alyona; Sparber, Wolfram (Multidisciplinary Digital Publishing Institute (MDPI), 2024-11-11)
    Article
    Open Access
    Background: Urban mobility management faces growing challenges that require the analysis and optimization of sustainable solutions. Digital twins (DTs) have emerged as innovative tools for this assessment, but their ...

  • Applying survey weights to ordinal regression models for improved inference in outcome-dependent samples with ordinal outcomes 

    Mitani, Aya; Espin-Garcia, Osvaldo; Fernández Martínez, Daniel; Landsman, Victoria (2024-10-23)
    Article
    Open Access
    Researchers often use outcome-dependent sampling to study the exposure-outcome association. The case-control study is a widely used example of outcome-dependent sampling when the outcome is binary. When the outcome is ...

  • Land use, travel patterns and gender in Barcelona: a sequence analysis approach 

    Montero Mercadé, Lídia; Mejía-Dorantes, Lucía; Barceló Bugeda, Jaime (Multidisciplinary Digital Publishing Institute (MDPI), 2024-10-17)
    Article
    Open Access
    Transport systems are essential for the path toward sustainable urbanisation and the transition to more sustainable living. Recently, European cities have undergone substantial changes, and suburbanisation is posing new ...

  • Regulatory issues of platform trials: learnings from EU-PEARL 

    Lan Nguyen, Quynh; Hees, Katharina; Hernandez Penna, Sabina; König, Franz; Posch, Martin; Bofill Roig, Marta; Meyer, Elias Laurin; Freitag, Michaela Maria; Parke, Tom; Otte, Maximilian; Dauben, Hans-Peter; Mielke, Tobias; Spiertz, Cecile; Mesenbrink, Peter; Gidh-Jain, Madhavi; Pierre, Suzanne; Morello, Salvatore; Hofner, Benjamin (2024-07)
    Article
    Open Access
    Although platform trials have many benefits, the complexity of these designs may result not only in increased methodological but also regulatory and ethical challenges. These aspects were addressed as part of the IMI project ...

  • Second-order Markov multistate models 

    Besalú Mayol, Mireia; Gómez Melis, Guadalupe (2024-07-01)
    Article
    Open Access
    Multistate models are well developed for continuous and discrete times under a frstorder Markov assumption. Motivated by a cohort of COVID-19 patients, a multistate model was designed based on 14 transitions among 7 states ...

  • Effect of an 18-month meditation training on telomeres in older adults: a secondary analysis of the Age-Well randomized controlled trial 

    Kaliman, Perla; Álvarez-López, María Jesús; Lehodey, Asrar; Fernández Martínez, Daniel; Chocat, Anne; Schlosser, Marco; de la Sayette, Vincent (2025-01)
    Article
    Open Access
    Background Shorter telomeres are associated with increased risk of cognitive decline and age-related diseases. Developing interventions to promote healthy aging by preserving telomere integrity is of paramount importance. ...

  • Intervention design and teaching practice for enhancing engineering skills in reading research articles 

    García Vilchez, Mercedes; Vlasov, Mikhail; Torrent, Miquel; Rodero de Lamo, Lourdes; Gámez Montero, Pedro Javier (European Society for Engineering Education (SEFI), 2024)
    Conference report
    Open Access
    The constant drive to improve engineering education's pedagogy stems from its crucial role in serving society. The practice of reading research articles is an academic strategy to keep up with the rapid advancement of the ...

  • Watching the guards: a data-driven method to trigger warnings in national wastewater surveillance networks 

    Bosch-Lladó, Lluís; Pueyo-Ros, Josep; Comas Cufí, Marc; Saldaña Meca, Joan; Ripoll Missé, Jordi; Calle Ortega, Eusebio; Fonseca Casas, Pau; Garcia Subirana, Joan; Borrego-More, Carles; Corominas Tabares, Lluis (2024-06-12)
    Article
    Open Access
    Surveillance networks have been established in many countries worldwide to monitor SARS-CoV-2 in sewage and to estimate the communal prevalence of COVID-19 cases. Despite their popularity, gaining a rapid understanding of ...

  • Features that influence bike sharing demand 

    Cortez Ordóñez, Alexandra Piedad; Vázquez Alcocer, Pere Pau; Sánchez Espigares, Josep Anton (Elsevier Ltd, 2024-09-30)
    Article
    Open Access
    During the last few years, Bike Sharing Systems (BSS) have become a popular means of transportation in several cities across the world, owing to their low costs and associated advantages. Citizens have adopted these systems ...

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