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Big Data and Cognitive Computing, Volume 9, Issue 3

March 2025 - 24 articles

Cover Story: Generative AI (GenAI) is transforming digital ecosystems, but concerns have been raised regarding trust and misinformation. This article explores decentralized Web3 mechanisms—blockchain, DAOs, and data cooperatives—to enhance trust in GenAI within democratic frameworks. In line with the EU’s AI Act and the Draghi Report, it evaluates seven detection techniques including (i) Federated Learning, (ii) Blockchain-Based Provenance Tracking, (iii) ZKPs, (iv) DAOs for Crowdsourced Verification, (v) AI-Powered Digital Watermarking, (vi) XAI, and (vii) PPML to counter AI-driven misinformation. By integrating decentralized verification and data sovereignty, this article—stemming from the EU-funded Enfield lighthouse project—advances AI governance, ensuring transparency, accountability, and resilience despite increasing technopolitical polarization. View this paper
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Articles (24)

  • Article
  • Open Access
1,651 Views
22 Pages

TACO: Adversarial Camouflage Optimization on Trucks to Fool Object Detectors

  • Adonisz Dimitriu,
  • Tamás Vilmos Michaletzky and
  • Viktor Remeli

Adversarial attacks threaten the reliability of machine learning models in critical applications like autonomous vehicles and defense systems. As object detectors become more robust with models like YOLOv8, developing effective adversarial methodolog...

  • Article
  • Open Access
2 Citations
1,169 Views
19 Pages

Data-Driven Forecasting of CO2 Emissions in Thailand’s Transportation Sector Using Nonlinear Autoregressive Neural Networks

  • Thananya Janhuaton,
  • Supanida Nanthawong,
  • Panuwat Wisutwattanasak,
  • Chinnakrit Banyong,
  • Chamroeun Se,
  • Thanapong Champahom,
  • Vatanavongs Ratanavaraha and
  • Sajjakaj Jomnonkwao

Accurately forecasting CO2 emissions in the transportation sector is essential for developing effective mitigation strategies. This study uses an annually spanning dataset from 1993 to 2022 to evaluate the predictive performance of three methods: NAR...

  • Article
  • Open Access
6 Citations
4,625 Views
30 Pages

Generation Z’s Travel Behavior and Climate Change: A Comparative Study for Greece and the UK

  • Athanasios Demiris,
  • Grigorios Fountas,
  • Achille Fonzone and
  • Socrates Basbas

Climate change is one of the most pressing global threats, endangering the sustainability of the planet and quality of life, whilst urban mobility significantly contributes to exacerbating its effects. Recently, policies aimed at mitigating these eff...

  • Article
  • Open Access
1 Citations
1,420 Views
23 Pages

Defining, Detecting, and Characterizing Power Users in Threads

  • Gianluca Bonifazi,
  • Christopher Buratti,
  • Enrico Corradini,
  • Michele Marchetti,
  • Federica Parlapiano,
  • Domenico Ursino and
  • Luca Virgili

Threads is a new social network that was launched by Meta in July 2023 and conceived as a direct alternative to X. It is a unique case study in the social network landscape, as it is content-based like X, but has an Instagram-based growth model, whic...

  • Article
  • Open Access
1,281 Views
22 Pages

Margin-Based Training of HDC Classifiers

  • Laura Smets,
  • Dmitri Rachkovskij,
  • Evgeny Osipov,
  • Werner Van Leekwijck,
  • Olexander Volkov and
  • Steven Latré

The explicit kernel transformation of input data vectors to their distributed high-dimensional representations has recently been receiving increasing attention in the field of hyperdimensional computing (HDC). The main argument is that such represent...

  • Feature Paper
  • Article
  • Open Access
5 Citations
7,771 Views
18 Pages

A Comparative Analysis of Sentence Transformer Models for Automated Journal Recommendation Using PubMed Metadata

  • Maria Teresa Colangelo,
  • Marco Meleti,
  • Stefano Guizzardi,
  • Elena Calciolari and
  • Carlo Galli

We present an automated journal recommendation pipeline designed to evaluate the performance of five Sentence Transformer models—all-mpnet-base-v2 (Mpnet), all-MiniLM-L6-v2 (Minilm-l6), all-MiniLM-L12-v2 (Minilm-l12), multi-qa-distilbert-cos-v1...

  • Article
  • Open Access
2 Citations
1,852 Views
26 Pages

This paper introduces PK-Judge, a novel neural network watermarking framework designed to enhance the intellectual property (IP) protection by incorporating an asymmetric cryptograp hic approach in the verification process. Inspired by the paradigm s...

  • Article
  • Open Access
2 Citations
4,002 Views
21 Pages

Enhancing Hierarchical Classification in Tree-Based Models Using Level-Wise Entropy Adjustment

  • Olga Narushynska,
  • Anastasiya Doroshenko,
  • Vasyl Teslyuk,
  • Volodymyr Antoniv and
  • Maksym Arzubov

Hierarchical classification, which organizes items into structured categories and subcategories, has emerged as a powerful solution for handling large and complex datasets. However, traditional flat classification approaches often overlook the hierar...

  • Article
  • Open Access
3 Citations
7,570 Views
13 Pages

An Expected Goals On Target (xGOT) Model: Accounting for Goalkeeper Performance in Football

  • Blanca De-la-Cruz-Torres,
  • Miguel Navarro-Castro and
  • Anselmo Ruiz-de-Alarcón-Quintero

A key challenge in utilizing the expected goals on target (xGOT) metric is the limited public access to detailed football event and positional data, alongside other advanced metrics. This study aims to develop an xGOT model to evaluate goalkeeper (GK...

  • Article
  • Open Access
1 Citations
3,640 Views
26 Pages

A Novel Multimodal Data Fusion Framework: Enhancing Prediction and Understanding of Inter-State Cyberattacks

  • Jiping Dong,
  • Mengmeng Hao,
  • Fangyu Ding,
  • Shuai Chen,
  • Jiajie Wu,
  • Jun Zhuo and
  • Dong Jiang

Inter-state cyberattacks are increasingly becoming a major hidden threat to national security and global order. However, current prediction models are often constrained by single-source data due to insufficient consideration of complex influencing fa...

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Big Data Cogn. Comput. - ISSN 2504-2289