UNICA IRIS Institutional Research Information System

Application of a numerical software to investigate the urban traffic-related air pollution in the real case of Cagliari (Italy): results and improvement through Urban Microclimate Design mitigation strategies

Phishing Detection in Web Domains: New intelligent tool leveraging the effectiveness of emerging Generative models

The rapid growth of online services has heightened concerns about user protection from cyber threats, particularly phishing, which poses significant risks to cyber-social security. To this end, we propose a novel tool for phishing detection called U-Proof. Our tool uses both state-of-the-art LLMs and traditional ML models to detect phishing websites. In particular, we evaluate the phishing detection capabilities of different LLMs and compare them with several ML models to analyze the impact o...

Leader self-sacrifice and the architecture of legacy: a multi-case study on family firm longevity

Legacy in family firms connects past, present, and future through narratives and practices that transcend economics. This study adopts a mechanism-first view, positioning leader self-sacrifice (LSS)—the voluntary acceptance of personal costs for collective benefit—as the antecedent that activates legacy dynamics. Using an inductive multi-case design across continents, we show how LSS triggers three facets of legacy: unintentional building, shared intentional transmission, and intent...

Evaluating Fine-Tuned LLMs for AI Text Detection

To counter threats like disinformation, which are amplified by Large Language Models (LLMs) generating human-like text, robust detection systems are essential. Such systems need to be effective across diverse domains and resilient to adversarial manipulations like paraphrasing. We investigated the use of fine-tuned LLMs for AI-generated text detection, evaluating supervised fine-tuning (SFT) across varying domain coverage during training. These were tested by focusing on their generalization ...