2026
Authors
Fernandes, M; Dias, TG; Ferreira, MC;
Publication
Transportation Research Procedia
Abstract
As cities grow and sustainability becomes a key driver of urban policy, active modes of transport such as walking and cycling are increasingly promoted. However, current route planning applications rarely consider factors beyond time and distance. This paper presents the design and evaluation of a mobile application prototype that supports multicriteria route planning for active transport modes. The proposed solution incorporates user-defined weights for dimensions such as safety, comfort, accessibility, and environmental quality. To ensure adaptability and up-to-date information, the study also explores the feasibility of crowdsourcing as a complementary data source. A mixed-method approach was followed, including literature review, user surveys (n=242), interface prototyping, and usability testing with real users. The results demonstrate strong user interest in contributing to data updates, especially when motivated by non-monetary incentives such as gamified rankings. The final prototype was positively evaluated for usability and interface quality. This research confirms the potential of user-centered, crowdsourcing-enhanced route planning to improve the experience of active mobility users and support sustainable urban mobility goals. Copyright © 2025. Published by Elsevier B.V.
2026
Authors
Silva, BZ; Silva, FG; Dias, TG; Ferreira, MC;
Publication
Transportation Research Procedia
Abstract
Urban mobility in large cities faces increasing pressure due to population growth and congestion. Automated Fare Collection (AFC) systems offer a rich source of data for understanding public transport usage and informing data-driven improvements. This paper presents a case study in Fortaleza, Brazil, where we explore AFC smart card data to predict users’ next bus trips and travel volume. We develop a machine learning pipeline combining feature engineering and classification/regression models. A comparative evaluation of algorithms, including Random Forest, XGBoost, and Support Vector Machines, shows that decision-tree-based models achieve the best performance, particularly in handling noisy and imbalanced data. Our approach considers both user-level predictions and cluster-based analyses to improve model generalizability across user types. The results demonstrate the potential of AFC data to enhance transit planning, reduce overcrowding, and personalize mobility services. This study contributes to the growing body of research on smart mobility analytics in developing urban contexts. Copyright © 2025. Published by Elsevier B.V.
2026
Authors
Oliveira, JP; Mendes, A; Ferreira, MC;
Publication
PROCEEDINGS OF 20TH IBERIAN CONFERENCE ON INFORMATION SYSTEMS AND TECHNOLOGIES, CISTI 2025, VOL 4
Abstract
The rapid expansion of information production presents a growing challenge in identifying high-quality, relevant studies necessary for a solid research foundation in Systematic Literature Reviews (SLR). Traditional methods often struggle with academic publications' increasing volume and dynamic nature, necessitating more efficient analytical tools. Artificial Intelligence (AI) and Natural Language Processing (NLP) offer significant potential in streamlining literature reviews through advanced analytical techniques. This work explores how AI and NLP tools enhance article screening and information synthesis, particularly through Retrieval-Augmented Generation (RAG). While large language models demonstrate strong text generation capabilities, they frequently lack comprehensive contextual understanding. RAG addresses this limitation by retrieving precise information, enabling more accurate and context-aware literature reviews. A novel approach is proposed that transforms the traditionally linear SLR workflow into a dynamic, continuously updatable bundle- a unified framework that integrates search, screening, data extraction, and synthesis. This approach is inspired by the RAPTOR Python package, which recursively embeds, clusters, and summarizes text to construct a hierarchical knowledge structure. The adapted model, DSA.VE, extends RAPTOR's capabilities to improve contextual summarization and structured synthesis, enhancing its applicability in multidisciplinary research fields. To demonstrate the effectiveness of this approach, a case study examines the potential of methanol as an alternative fuel in transport systems. The results highlight how AI-driven methodologies facilitate large-scale literature synthesis and knowledge integration. By leveraging AI, this work contributes to developing more efficient, systematic, and scalable literature review processes, addressing a critical challenge in modern research.
2026
Authors
Almeida, F; Okon, E;
Publication
Knowledge and Process Management
Abstract
2026
Authors
Mourthé, A; Mello, CE; Jorge, A;
Publication
SOCIAL NETWORKS ANALYSIS AND MINING, ASONAM 2025, PT I
Abstract
As recommender systems play an increasingly central role in shaping information exposure on platforms like YouTube, understanding the nature of the content they promote, especially in sensitive contexts, requires scalable and reliable labelling methods. This paper investigates the use of Large Language Models (LLM) to label YouTube videos based solely on their metadata. We propose a committee-based approach that aggregates predictions from an ensemble of seven state-of-the-art LLMs through majority voting. Using a novel dataset collected via simulated user interactions on YouTube, we analyse model agreement, labelling behavior, and the influence of model size. To assess label reliability, we also investigate the semantic coherence of label assignments. Our results show that LLM committees produce highly consistent labels in low-disagreement settings. These findings highlight both the promise and limitations of LLM-based annotation for auditing social networks.
2026
Authors
Wagner, L; Godinho de Matos, M; Gijsbrechts, J; Amorim, P;
Publication
Abstract
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