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Publicações

Publicações por LIAAD

2024

Return on AI: Mapping and Exploring ROI (In)Tangible Measures

Autores
Torres, AI; Paulo, DLS; Santos, JD; Pires, PB;

Publicação
Leveraging AI for Effective Digital Relationship Marketing

Abstract
This chapter aims to discuss about the potential Return on Investment (ROI) measures from Artificial intelligence (AI) investments that business can leverage. It discusses the concepts and describes the dimensions, features and tools of AI investments in Marketing business, to assist the readers to understand about the topic. The authors also describe the major drivers of ROI measures for business applications and discusses the concerns and limitations of tangible measures. So, this document contributes to the literature on ROI (in)tangibles measures that leverage AI investments and features issues in digital marketing, at large and potentially offers a theoretical grounding for many empirical and theoretical future studies. © 2025 by IGI Global Scientific Publishing. All rights reserved.

2024

Sustainable Tourism e-Communication Impact on Tourism Behavior

Autores
Azevedo, C; Roxo, MT; Brandão, A;

Publicação
Smart Innovation, Systems and Technologies

Abstract
This study develops some sustainable tourism advertising effects and consumer environmental awareness-raising and examines them by advertising certification and advertising format in a field experiment. The tourism advertising effects are analyzed by five dependent variables: trust and credibility, environmentalism, ad relevance, realism, and flow. Several ANOVA and multiple comparison tests were performed to understand whether these variables varied between groups. Experimental research findings indicate that flow and video format affect tourism advertising and consumer environmental awareness-raising. This study demonstrates the importance of understanding the concept of sustainable tourism and awareness-raising. It also points to identifying the best communication strategies to promote a sustainable destination, as different communication methods may lead to different results. In addition, it provides valuable information for marketers to consider when implementing their communication strategies. © 2024, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

2024

Lasting brain functional connectivity changes induced by positive emotional stimuli in insomnia patients

Autores
Ernesto, SA; Nogueira, AR; Léré, G; Daviaux, Y; Philip, P; Sousa, R; Catheline, G; Altena, E;

Publicação
JOURNAL OF SLEEP RESEARCH

Abstract

2024

Integrating machine learning techniques for predicting ground vibration in pile driving activities

Autores
Abouelmaty, AM; Colaço, A; Fares, AA; Ramos, A; Costa, PA;

Publicação
COMPUTERS AND GEOTECHNICS

Abstract
This study focuses on the assessment of ground vibrations due to pile driving activities. Given the likelihood of excessive vibration due to the driving process, it is imperative to predict vibration levels during the design phase. The primary goal of this work is to integrate machine learning techniques, specifically Extreme Gradient Boosting (XGBoost) and Artificial Neural Networks (ANNs) for real-time vibration prediction. The training dataset was generated using a validated numerical model and the trained models were validated based on experimental results. This validation process highlights the efficiency and accuracy of Extreme Gradient Boosting in predicting the-free-field response of the ground.

2024

Enhancing Forecasting using Read & Write Recurrent Neural Networks

Autores
Yassine Baghoussi;

Publicação

Abstract

2024

A Distributed Computing Solution for Privacy-Preserving Genome-Wide Association Studies

Autores
Brito, C; Ferreira, P; Paulo, J;

Publicação

Abstract
AbstractBreakthroughs in sequencing technologies led to an exponential growth of genomic data, providing unprecedented biological in-sights and new therapeutic applications. However, analyzing such large amounts of sensitive data raises key concerns regarding data privacy, specifically when the information is outsourced to third-party infrastructures for data storage and processing (e.g., cloud computing). Current solutions for data privacy protection resort to centralized designs or cryptographic primitives that impose considerable computational overheads, limiting their applicability to large-scale genomic analysis.We introduce Gyosa, a secure and privacy-preserving distributed genomic analysis solution. Unlike in previous work, Gyosafollows a distributed processing design that enables handling larger amounts of genomic data in a scalable and efficient fashion. Further, by leveraging trusted execution environments (TEEs), namely Intel SGX, Gyosaallows users to confidentially delegate their GWAS analysis to untrusted third-party infrastructures. To overcome the memory limitations of SGX, we implement a computation partitioning scheme within Gyosa. This scheme reduces the number of operations done inside the TEEs while safeguarding the users’ genomic data privacy. By integrating this security scheme inGlow, Gyosaprovides a secure and distributed environment that facilitates diverse GWAS studies. The experimental evaluation validates the applicability and scalability of Gyosa, reinforcing its ability to provide enhanced security guarantees. Further, the results show that, by distributing GWASes computations, one can achieve a practical and usable privacy-preserving solution.

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