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This paper describes the design and evaluation of DSAScratch, an extension to Scratch, a widely used block-based programming language. The DSAScratch framework implements advanced data structures such as arrays, sets, dictionaries, and…

Human-Computer Interaction · Computer Science 2023-02-28 Ashwin Jagadeesha , Pranathi Rayavaram , Justin Marward , Sashank Narain , Claire Seungeun Lee

On-campus activities like positions of responsibility in campus amenities and participation in research, benefit the students as well as the university, while also making students financially self-sufficient to a certain extent. However,…

Computers and Society · Computer Science 2021-05-27 Ritu Gala , Eshita Shukla , Nidhee Kamble , Revathi Vijayaraghavan , Dhiren Patel

In response to the exponential growth in the use of artificial intelligence and machine learning applications, educators, researchers and policymakers have taken steps to integrate artificial intelligence applications into K-12 education.…

Computers and Society · Computer Science 2026-02-20 Yasmin Kafai , José Ramón Lizárraga , R. Benjamin Shapiro

Financial fraud cases are on the rise even with the current technological advancements. Due to the lack of inter-organization synergy and because of privacy concerns, authentic financial transaction data is rarely available. On the other…

Nowadays, academic certificates are still widely issued in paper format. Traditional certificate verification is a lengthy, manually intensive, and sometimes expensive process. In this paper, we propose a novel NFT-based certificate…

Cryptography and Security · Computer Science 2022-02-22 Xiongfei Zhao , Yain-Whar Si

The development of Large Language Models (LLMs) faces a significant challenge: the exhausting of publicly available fresh data. This is because training a LLM needs a large demanding of new data. Federated learning emerges as a promising…

Cryptography and Security · Computer Science 2024-06-07 Xuhan Zuo , Minghao Wang , Tianqing Zhu , Lefeng Zhang , Dayong Ye , Shui Yu , Wanlei Zhou

The arrival of AI coding assistants in educational settings presents a paradigm shift, introducing a "new kid in the classroom" for both students and instructors. Thus, understanding the perceptions of these key actors about this new…

Human-Computer Interaction · Computer Science 2025-09-17 Sergio Rojas-Galeano

We have designed and developed a simple, visual, and narrative K-12 cybersecurity curriculum leveraging the Scratch programming platform to demonstrate and teach fundamental cybersecurity concepts such as confidentiality, integrity…

Cryptography and Security · Computer Science 2023-02-24 Pranathi Rayavaram , Sreekriti Sista , Ashwin Jagadeesha , Justin Marwad , Nathan Percival , Sashank Narain , Claire Seungeun Lee

Blockchain technology enforces the security, robustness, and traceability of operations of Process-Aware Information Systems (PAISs). In particular, transparency ensures that all data is publicly available, fostering trust among…

Cryptography and Security · Computer Science 2026-04-23 Michele Kryston , Edoardo Marangone , Alessandro Marcelletti , Claudio Di Ciccio

Block-based programming languages like Scratch have become increasingly popular as introductory languages for novices. These languages are intended to be used with a "tinkering" approach which allows learners and teachers to quickly…

The synergy between Federated Learning and blockchain has been considered promising; however, the computationally intensive nature of contribution measurement conflicts with the strict computation and storage limits of blockchain systems.…

Cryptography and Security · Computer Science 2026-03-31 Leon Witt , Kentaroh Toyoda , Wojciech Samek , Dan Li

With the growing need to comply with privacy regulations and respond to user data deletion requests, integrating machine unlearning into IoT-based federated learning has become imperative. Traditional unlearning methods, however, often lack…

Cryptography and Security · Computer Science 2024-06-03 Xuhan Zuo , Minghao Wang , Tianqing Zhu , Lefeng Zhang , Shui Yu , Wanlei Zhou

The Blockchain technology was initially adopted to implement various cryptocurrencies. Currently, Blockchain is foreseen as a general purpose technology with a huge potential in many areas. Blockchain-based applications have inherent…

Other Computer Science · Computer Science 2019-04-09 Emanuel E. Bessa , Joberto S. B. Martins

Even relatively simple code analysis can be a daunting task for many first year students. Perceived complexity, coupled with foreign and harsh syntax, often outstrips the ability for students to take in what they are seeing in terms of…

Human-Computer Interaction · Computer Science 2008-03-05 Christopher Pearson , Celina Gibbs , Yvonne Coady

Blockchain is relatively a new area of research. However, a surge of research studies on the blockchain has taken place in recent years. These research studies have mostly focused on designing and developing conceptual frameworks to build…

Software Engineering · Computer Science 2020-04-28 Iyolita Islam , Kazi Md. Munim , Shahrima Jannat Oishwee , A. K. M. Najmul Islam , Muhammad Nazrul Islam

This exploratory study investigates the intersection of Generative AI tools and experiential learning in business education. Through a case study of an innovative undergraduate course, we examine how students interact with and adapt to…

Artificial Intelligence · Computer Science 2025-06-09 Nicole C. Wang

Computational thinking (CT) is increasingly promoted as a core literacy, yet learners and teachers face challenges in connecting abstract program logic to meaningful outcomes. We design and evaluate RoboBlockly Studio, an integrated…

Human-Computer Interaction · Computer Science 2026-05-13 Leyi Li , Chenyu Du , Jiafei Sun , Erick Purwanto , Qing Zhang

Blockchain is a revolutionary technology, and its growth started in various industries (such as IT, education, business, banking, and many others) to capitalize on it. Currently, in higher education institutions (HEIs) adoption of…

Computers and Society · Computer Science 2023-01-20 Rizwan Patan , Reza M. Parizi , Mohsen Dorodchi , Seyedamin Pouriyeh , Audrey Rorrer

Blockchain is a new technological approach that has gained popularity on the market due to its application in several areas such as education, health, security, and smart cities, among others. However, understanding how blockchain works is…

Human-Computer Interaction · Computer Science 2021-04-16 Diogo Cortiz , Newton Calegari , Fabiana Oliveira , Daniel Couto Gatti

Academic credentials are documents that attest to successful completion of any test, exam or act as a validation of an individual's skill. Currently, the domain of academic credential management suffers from large time consumption, high…

Cryptography and Security · Computer Science 2020-06-24 Chaitanya Bapat