Ana Valdivia
Ana Valdivia
Lecturer in AI, Government & Policy at the University of Oxford
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Sentiment analysis in tripadvisor
A Valdivia, MV Luzón, F Herrera
IEEE Intelligent Systems 32 (4), 72-77, 2017
Consensus vote models for detecting and filtering neutrality in sentiment analysis
A Valdivia, MV Luzón, E Cambria, F Herrera
Information Fusion 44, 126-135, 2018
Same data, different conclusions: Radical dispersion in empirical results when independent analysts operationalize and test the same hypothesis
M Schweinsberg, M Feldman, N Staub, OR van den Akker, RCM van Aert, ...
Organizational Behavior and Human Decision Processes 165, 228-249, 2021
Inconsistencies on TripAdvisor reviews: A unified index between users and Sentiment Analysis Methods
A Valdivia, E Hrabova, I Chaturvedi, MV Luzón, L Troiano, E Cambria, ...
Neurocomputing 353, 3-16, 2019
How fair can we go in machine learning? Assessing the boundaries of accuracy and fairness
A Valdivia, J Sánchez‐Monedero, J Casillas
International Journal of Intelligent Systems, 1-25, 2021
E2SAM: Evolutionary ensemble of sentiment analysis methods for domain adaptation
M López, A Valdivia, E Martínez-Cámara, MV Luzón, F Herrera
Information Sciences 480, 273-286, 2019
What do people think about this monument? Understanding negative reviews via deep learning, clustering and descriptive rules
A Valdivia, E Martínez-Cámara, I Chaturvedi, MV Luzón, E Cambria, ...
Journal of Ambient Intelligence and Humanized Computing 11, 39-52, 2020
Neutrality in the sentiment analysis problem based on fuzzy majority
A Valdivia, MV Luzíón, F Herrera
2017 IEEE international conference on fuzzy systems (FUZZ-IEEE), 1-6, 2017
Deep recurrent neural network for geographical entities disambiguation on social media data
C Zuheros, S Tabik, A Valdivia, E Martínez-Cámara, F Herrera
Knowledge-Based Systems 173, 117-127, 2019
Measuring and exploiting the impact of exhibition scheduling on museum attendance
V Martínez-de-Albéniz, A Valdivia
Manufacturing & Service Operations Management 21 (4), 761-779, 2019
Neither opaque nor transparent: A transdisciplinary methodology to investigate datafication at the EU borders
A Valdivia, C Aradau, T Blanke, S Perret
Big Data & Society 9 (2), 20539517221124586, 2022
Sentiment analysis on tripadvisor: Are there inconsistencies in user reviews?
A Valdivia, MV Luzón, F Herrera
Hybrid Artificial Intelligent Systems: 12th International Conference, HAIS …, 2017
There is an elephant in the room: towards a critique on the use of fairness in biometrics
A Valdivia, JC Serrajòrdia, A Swianiewicz
AI and Ethics 3 (4), 1407-1422, 2023
Datafication genealogies beyond algorithmic fairness: making up racialised subjects
A Valdivia, M Tazzioli
Proceedings of the 2023 ACM Conference on Fairness, Accountability, and …, 2023
Silicon Valley and the Environmental Costs of AI
A Valdivia …, 2022
Judging the algorithm: A case study on the risk assessment tool for gender-based violence implemented in the Basque country
Valdivia, Ana, C Hyde-Vaamonde, J García-Marcos
arXiv preprint arXiv:2203.03723, 2022
Characterizing and modeling harms from interactions with design patterns in AI interfaces
L Ibrahim, L Rocher, A Valdivia
arXiv preprint arXiv:2404.11370, 2024
The Paradox of Efficiency: Frictions Between Law and Algorithms
A Valdivia
Verfassungsblog: On Matters Constitutional, 2022
Smoke And Mirrors of the Eco-Politics of Biometrics at the Border
A Valdivia …, 2023
Rural Spain could end up hosting infrastructure hubs for AI – here’s what the environmental cost could be
A Valdivia …, 2023
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