Category: Programming

On January 7, 2024, I was awarded the degree of Philosophiae Doctor from the University of Notre Dame du Lac, Notre Dame, IN. This makes me a Double Domer, having received my MS from Notre Dame in August 2022.

At Notre Dame’s Trustworthy AI Lab for Education Summit, I gave a talk titled “Privacy-Enhancing Technologies for Educationally Focused AI”. The talk abstract is as follows:

Artificial Intelligence (AI) has great potential for aiding and improving education. Conversely, the risks of AI applied to education may be large. Misapplication or malicious use of AI in an educational setting poses unique risks to students and teachers who rely on correct answers and trustworthy data provenance. President Biden’s recent executive order on Safe, Secure, and Trustworthy AI called on Congress to strengthen and fund the development of cryptographic Privacy-Enhancing Technologies (PETs). Educational practitioners who interact with AI need to be aware of the nature of such technologies to effectively protect their students and institutions.
In this presentation, I will first describe actual and potential threats to security, privacy, integrity, and authenticity that AI used in education may pose, including misinformation in training data, siphoning of student information, mistranslations, discrimination, or offering dangerous information to unauthorized parties. I will then discuss at a high level several PETs that can be applied for AI in education, paying particular attention to the traits of these PETs that are most important in an educational context (e.g., methods for the protection of student data under FERPA).
The PETs discussed will include differential privacy, federated learning, homomorphic encryption, distributed multi-party computations, and trusted hardware. Finally, I will present a comparison of the uses and relative strengths and weaknesses of these PETs applied to AI in education. Throughout this presentation, I will draw upon both hypothetical examples and real-world attacks and defenses, citing research from Notre Dame’s Data Security and Privacy Lab and external research.

My dissertation defense was held on the afternoon of September 12, 2023, in Bond Hall at the University of Notre Dame. I am very pleased to report that I passed unanimously, becoming the third Dr. Takeshita (三番めの竹下博士になりました)! My doctoral degree will officially be awarded on January 7, 2024.

Our paper “Accelerating Finite-Field and Torus FHE via Compute-Enabled (S)RAM” has been accepted by IEEE Transactions on Computers! As described by TC’s Editor-in-Chief: “TC is the IEEE Computer Society’s flagship journal and is considered a lead archival publication in the field of computing. It publishes high-quality research that is timely and relevant to researchers in academia, industry, and government laboratories. Google Scholar ranks TC as the top journal in computer hardware design, and TC’s impact factor remains the highest among its competitors.”

My coauthors are Dayane Reis (U. South Florida), Ting Gong (U. Washington – Seattle), Michael Niemier (Notre Dame), X. Sharon Hu (Notre Dame), and Taeho Jung (Notre Dame).

On June 7, 2023, I will be giving an invited talk to the Data Trust team at Seagate Research Group! My talk, “Privacy-Preserving Computation”, will present an overview of several of his projects in the area of Data Security and Privacy, including my work at Notre Dame, Google, and Meta (formerly Facebook). Topics include hardware acceleration of homomorphic encryption, privacy-preserving contact tracing, trusted hardware, and large-scale secure data aggregation.