Skip to main content

and
  1. Article

    Open Access

    Exposing and explaining fake news on-the-fly

    Social media platforms enable the rapid dissemination and consumption of information. However, users instantly consume such content regardless of the reliability of the shared data. Consequently, the latter cr...

    Francisco de Arriba-Pérez, Silvia García-Méndez, Fátima Leal in Machine Learning (2024)

  2. No Access

    Chapter and Conference Paper

    Framework for Real-Time Predictive Maintenance Supported by Big Data Technologies

    Industry 4.0 boosted the generation of large volumes of sensor data in manufacturing production lines. When adequately mined, this information can anticipate failures and launch maintenance actions increasing ...

    Marco Teixeira, Francisco Thierstein in Good Practices and New Perspectives in Inf… (2024)

  3. No Access

    Chapter and Conference Paper

    Explainable Classification of Wiki Streams

    Web 2.0 platforms, like wikis and social networks, rely on crowdsourced data and, as such, are prone to data manipulation by ill-intended contributors. This research proposes the transparent identification of ...

    Silvia García-Méndez, Fátima Leal in Information Systems and Technologies (2024)

  4. No Access

    Chapter and Conference Paper

    Emotional Evaluation of Open-Ended Responses with Transformer Models

    This work applies Natural Language Processing (NLP) techniques, specifically transformer models, for the emotional evaluation of open-ended responses. Today’s powerful advances in transformer architecture, suc...

    Alejandro Pajón-Sanmartín in Good Practices and New Perspectives in Inf… (2024)

  5. No Access

    Chapter and Conference Paper

    Balancing Plug-In for Stream-Based Classification

    The latest technological advances drive the emergence of countless real-time data streams fed by users, sensors, and devices. These data sources can be mined with the help of predictive and classification tech...

    Francisco de Arriba-Pérez, Silvia García-Méndez in Information Systems and Technologies (2024)

  6. Article

    Open Access

    Blockchain for Data Originality in Pharma Manufacturing

    This paper analyses the feasibility of tracking data originality for pharmaceutical manufacturing in a tamper-proof manner using a geographically distributed system. The main research question is whether it is...

    Marta Durá, Fátima Leal, Ángel Sánchez-García in Journal of Pharmaceutical Innovation (2023)

  7. No Access

    Chapter and Conference Paper

    Decentralisation of FinTech Business Models

    Digital transformation could change our daily routines, from currency to the purchases. Specifically, financial sector aims to efficiently supply distinct services using an infrastructure by relying on a centr...

    Fátima Leal, Maria Emília Teixeira in Proceedings of International Conference on… (2022)

  8. No Access

    Chapter and Conference Paper

    Explanation Plug-In for Stream-Based Collaborative Filtering

    Collaborative filtering is a widely used recommendation technique, which often relies on rating information shared by users, i.e., crowdsourced data. These filters rely on predictive algorithms, such as, memory o...

    Fátima Leal, Silvia García-Méndez in Information Systems and Technologies (2022)

  9. No Access

    Chapter and Conference Paper

    Personalised Combination of Multi-Source Data for User Profiling

    Human interaction with intelligent systems, services, and devices generates large volumes of user-related data. This multi-source information can be used to build richer user profiles and improve personalizati...

    Bruno Veloso, Fátima Leal, Benedita Malheiro in Proceedings of International Conference on… (2022)

  10. No Access

    Chapter and Conference Paper

    Crowdsourced Data Stream Mining for Tourism Recommendation

    Crowdsourced data streams are continuous flows of data generated at high rate by users, also known as the crowd. These data streams are popular and extremely valuable in several domains. This is the case of to...

    Fátima Leal, Bruno Veloso, Benedita Malheiro in Trends and Applications in Information Sys… (2021)

  11. No Access

    Article

    Performance Evaluation of Private Ethereum Networks

    This paper provides a performance evaluation of private blockchain networks based on Ethereum, an open-source blockchain platform. Different sectors with stringent blockchain security, privacy, and auditabilit...

    Fátima Leal, Adriana E. Chis, Horacio González–Vélez in SN Computer Science (2020)

  12. No Access

    Chapter and Conference Paper

    Trust and Reputation Smart Contracts for Explainable Recommendations

    Recommendation systems are usually evaluated through accuracy and classification metrics. However, when these systems are supported by crowdsourced data, such metrics are unable to estimate data authenticity,...

    Fátima Leal, Bruno Veloso, Benedita Malheiro in Trends and Innovations in Information Syst… (2020)

  13. No Access

    Chapter and Conference Paper

    Assessing Industry 4.0 Readiness of Portuguese Companies

    Industry 4.0 (i4.0) has changed the industrial processes. Increasingly, companies have to adapt their processes to follow the technology development which has caused a digital transformation. However, mainly ...

    Hélder F. Castro, Alexandre R. F. Carvalho in Progress in Digital and Physical Manufactu… (2020)

  14. No Access

    Chapter and Conference Paper

    Incremental Hotel Recommendation with Inter-guest Trust and Similarity Post-filtering

    Crowdsourcing has become an essential source of information for tourists and tourism industry. Every day, large volumes of data are exchanged among stakeholders in the form of searches, posts, shares, reviews ...

    Fátima Leal, Benedita Malheiro in New Knowledge in Information Systems and T… (2019)

  15. Article

    Open Access

    Improving the diagnosis of cobalamin and related defects by genomic analysis, plus functional and structural assessment of novel variants

    Cellular cobalamin defects are a locus and allelic heterogeneous disorder. The gold standard for coming to genetic diagnoses of cobalamin defects has for some time been gene-by-gene Sanger sequencing of indivi...

    Sandra Brasil, Fátima Leal, Ana Vega, Rosa Navarrete in Orphanet Journal of Rare Diseases (2018)

  16. No Access

    Chapter and Conference Paper

    Trust and Reputation Modelling for Tourism Recommendations Supported by Crowdsourcing

    Tourism crowdsourcing platforms have a profound influence on the tourist behaviour particularly in terms of travel planning. Not only they hold the opinions shared by other tourists concerning tourism resource...

    Fátima Leal, Benedita Malheiro in Trends and Advances in Information Systems… (2018)

  17. No Access

    Chapter and Conference Paper

    Semantic Profiling and Destination Recommendation based on Crowd-sourced Tourist Reviews

    Nowadays tourists rely on technology for inspiration, research, booking, experiencing and sharing. Not only it provides access to endless sources of information, but has become an unbounded source of tourist-r...

    Fátima Leal, Horacio González–Vélez in Distributed Computing and Artificial Intel… (2018)

  18. Article

    Open Access

    Trust-based Modelling of Multi-criteria Crowdsourced Data

    As a recommendation technique based on historical user information, collaborative filtering typically predicts the classification of items using a single criterion for a given user. However, many application d...

    Fátima Leal, Benedita Malheiro, Horacio González-Vélez in Data Science and Engineering (2017)

  19. No Access

    Chapter and Conference Paper

    Prediction and Analysis of Hotel Ratings from Crowd-Sourced Data

    Crowdsourcing has become an essential source of information for tourists and the tourism industry. Every day, large volumes of data are exchanged among stakeholders in the form of searches, posts, shares, revi...

    Fátima Leal, Benedita Malheiro in Recent Advances in Information Systems and… (2017)