Ivan Letteri

Dr. Ivan Letteri

University of L'Aquila
orcid

Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2019 in International Journal of High Performance Computing and Networking
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Journal Article
Closed access
Ivan LetteriIvan Letteri
Ivan Letteri
GPGiuseppe Della Penna
Giuseppe Della Penna
GGGiovanni De Gasperis
Giovanni De Gasperis

1 June 2019
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Conference Paper
Closed access
Ivan LetteriIvan Letteri
Ivan Letteri
GPGiuseppe Della Penna
Giuseppe Della Penna
PCPasquale Caianiello
Pasquale Caianiello
We report about a HTTP botnet detection strategy based on a behavioral analysis of raw traffic data with the aim at minimizing resources necessary for the detection. It involves the selective choice of traffic characteristical features and their extraction with engineered probes, in a context of evolving malicious traffic. We develop the extraction software for eight selected features and experiment with a Multilayer Perceptron Classifier (MLP) over a benchmark traffic dataset for botnet detection, achieving a good 98.03% accuracy. In the effort to optimize the classifier overall performance by reducing data redundancy, we compute a statistics on Decision Tree Classifiers (DT) in order to rank features and observe that, by selecting out few of the lowest ranked ones (3), we can maintain MLP accuracy at 97.54% yet reducing probing resources and costs. We obtain a small further improvement in MLP performance, avoid the lengthy process of running the statistics of the DTs on actual data, and boost the ranking/selecting-out process by means of mutual partion entropy computation.


Verified
Journal Article
Open access
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VCValerio Caputo
Valerio Caputo
Ivan LetteriIvan Letteri
Ivan Letteri
Silvano Junior SantiniSilvano Junior Santini
Silvano Junior Santini
GSGaia Sinatti
Gaia Sinatti
Clara BalsanoClara Balsano
Clara Balsano
Sarcopenia, a condition characterised by the progressive decline in skeletal muscle mass and function, presents significant challenges in geriatric healthcare. Despite advances in its management, complex etiopathogenesis and the heterogeneity of diagnostic criteria underlie the limited precision of existing assessment methods. Therefore, efforts are needed to improve the knowledge and pave the way for more effective management and a more precise diagnosis. To this purpose, emerging technologies such as artificial intelligence (AI) can facilitate the identification of novel and accurate biomarkers by modelling complex data resulting from high-throughput technologies, fostering the setting up of a more precise approach. Based on such considerations, this review explores AI’s transformative potential, illustrating studies that integrate AI, especially machine learning and deep learning, with heterogeneous data such as clinical, anthropometric and molecular data. Overall, the present review will highlight the relevance of large-scale, standardised studies to validate biomarker signatures using AI-driven approaches.

16 June 2025 in International Journal of Artificial Intelligence in Education
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Journal Article
Open access
PDF file
Ivan LetteriIvan Letteri
Ivan Letteri
PVPierpaolo Vittorini
Pierpaolo Vittorini
Data science has emerged as an important field in higher education, presenting complex challenges for students due to its interdisciplinary nature involving statistical and computational concepts. In previous research, we introduced the rDSA system (R Data Science Assignments) to support data science students during formative assessments by providing exercises and feedback. As known, formative assessment has evolved from an “interim” evaluation method into a continuous process that enhances student understanding and informs educators to adjust their teaching strategies. It is closely linked to scaffolding, i.e., the method aiming to guide students from their current knowledge to the skills they can develop next. The research reported in this paper builds on previous findings that showed improved learning outcomes and good student engagement. We explored how to enhance student feedback by incorporating Large Language Models (LLMs) with traditional AI into the rDSA system. The results show that students extensively used the system, submitting numerous solutions and attempting various exercises, with activity peaking before exams. The system exceeded expectations in providing useful insights and feedback. However, students faced challenges related to focused attention, probably due to the verbosity of feedback. Learning outcomes, on average, improved, with students who solved more exercises using the tool, performing better than the others.

3 August 2021
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Book Chapter
Closed access
PDF file
Ivan LetteriIvan Letteri
Ivan Letteri
ACAntonio Di Cecco
Antonio Di Cecco
ADAbeer Dyoub
Abeer Dyoub
GPGiuseppe Della Penna
Giuseppe Della Penna