Ragnar Freij
University Lecturer
University Lecturer
T302 Dept. Mathematics and Systems Analysis
Full researcher profile
https://research.aalto.fi/...
Publications
Combinatorial Derived Matroids
Ragnar Freij-Hollanti, Relinde Jurrius, Olga Kuznetsova
2023
Electronic Journal of Combinatorics
Toward the Capacity of Private Information Retrieval from Coded and Colluding Servers
Lukas Holzbaur, Ragnar Freij-Hollanti, Jie Li, Camilla Hollanti
2022
IEEE Transactions on Information Theory
Private Information Retrieval from Colluding and Byzantine Servers with Binary Reed-Muller Codes
Perttu Saarela, Matteo Allaix, Ragnar Freij-Hollanti, Camilla Hollanti
2022
2022 IEEE International Symposium on Information Theory, ISIT 2022
Cyclic flats of binary matroids
Ragnar Freij-Hollanti, Matthias Grezet, Camilla Hollanti, Thomas Westerbäck
2021
Advances in Applied Mathematics
Information hiding using matroid theory
Ragnar Freij-Hollanti, Olga Kuznetsova
2021
Advances in Applied Mathematics
Private Information Retrieval Schemes With Product-Matrix MBR Codes
Julien Lavauzelle, Razane Tajeddine, Ragnar Freij-Hollanti, Camilla Hollanti
2021
IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY
An approximation of theta functions with applications to communications
Amaro Barreal, Mohamed Taoufiq Damir, Ragnar Freij-Hollanti, Camilla Hollanti
2020
SIAM Journal on Applied Algebra and Geometry
Private Streaming With Convolutional Codes
Lukas Holzbaur, Ragnar Freij-Hollanti, Antonia Wachter-Zeh, Camilla Hollanti
2020
IEEE Transactions on Information Theory
Low-Rank Parity-Check Codes over the Ring of Integers Modulo a Prime Power
Julian Renner, Sven Puchinger, Antonia Wachter-Zeh, Camilla Hollanti, Ragnar Freij-Hollanti
2020
2020 IEEE International Symposium on Information Theory, ISIT 2020 - Proceedings
t-Private Information Retrieval Schemes Using Transitive Codes
R. Freij-Hollanti, O. W. Gnilke, C. Hollanti, A. Horlemann-Trautmann, D. Karpuk, Ivo Kubjas
2019
IEEE Transactions on Information Theory