Ragnar Freij

Orcid: 0000-0001-8156-2053

Affiliations:
  • Aalto UniversityHelsinki, Finland


According to our database1, Ragnar Freij authored at least 42 papers between 2009 and 2023.

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Bibliography

2023
Combinatorial Derived Matroids.
Electron. J. Comb., 2023

2022
Toward the Capacity of Private Information Retrieval From Coded and Colluding Servers.
IEEE Trans. Inf. Theory, 2022

Private Information Retrieval from Colluding and Byzantine Servers with Binary Reed-Muller Codes.
Proceedings of the IEEE International Symposium on Information Theory, 2022

2021
Private Information Retrieval Schemes With Product-Matrix MBR Codes.
IEEE Trans. Inf. Forensics Secur., 2021

Information hiding using matroid theory.
Adv. Appl. Math., 2021

Cyclic flats of binary matroids.
Adv. Appl. Math., 2021

2020
Private Streaming With Convolutional Codes.
IEEE Trans. Inf. Theory, 2020

An Approximation of Theta Functions with Applications to Communications.
SIAM J. Appl. Algebra Geom., 2020

Low-Rank Parity-Check Codes over the Ring of Integers Modulo a Prime Power.
Proceedings of the IEEE International Symposium on Information Theory, 2020

2019
Private Information Retrieval From Coded Storage Systems With Colluding, Byzantine, and Unresponsive Servers.
IEEE Trans. Inf. Theory, 2019

Alphabet-Dependent Bounds for Linear Locally Repairable Codes Based on Residual Codes.
IEEE Trans. Inf. Theory, 2019

$t$ -Private Information Retrieval Schemes Using Transitive Codes.
IEEE Trans. Inf. Theory, 2019

Uniform Minors in Maximally Recoverable Codes.
IEEE Commun. Lett., 2019

File Size Distributions and Caching for Offloading.
Proceedings of the 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, 2019

On the Capacity of Private Information Retrieval from Coded, Colluding, and Adversarial Servers.
Proceedings of the 2019 IEEE Information Theory Workshop, 2019

2018
Cyclic Codes with Locality and Availability.
CoRR, 2018

Private Information Retrieval Schemes with Regenerating Codes.
CoRR, 2018

Warmth and edge spaces of graphs.
Adv. Appl. Math., 2018

Robust Private Information Retrieval from Coded Systems with Byzantine and Colluding Servers.
Proceedings of the 2018 IEEE International Symposium on Information Theory, 2018

2017
Private Information Retrieval from Coded Databases with Colluding Servers.
SIAM J. Appl. Algebra Geom., 2017

Bounds on Binary Locally Repairable Codes Tolerating Multiple Erasures.
CoRR, 2017

Private Information Retrieval Schemes for Coded Data with Arbitrary Collusion Patterns.
CoRR, 2017

Traffic Minimizing Caching and Latent Variable Distributions of Order Statistics.
CoRR, 2017

Matroid Theory and Storage Codes: Bounds and Constructions.
CoRR, 2017

Resource Allocation and Interference Management for Opportunistic Relaying in Integrated mmWave/sub-6 GHz 5G Networks.
IEEE Commun. Mag., 2017

Hierarchical network abstraction for HetNet coordination.
Proceedings of the 28th IEEE Annual International Symposium on Personal, 2017

Private information retrieval schemes for codec data with arbitrary collusion patterns.
Proceedings of the 2017 IEEE International Symposium on Information Theory, 2017

On Binary Matroid Minors and Applications to Data Storage over Small Fields.
Proceedings of the Coding Theory and Applications - 5th International Castle Meeting, 2017

2016
On the Combinatorics of Locally Repairable Codes via Matroid Theory.
IEEE Trans. Inf. Theory, 2016

Constructions and Properties of Linear Locally Repairable Codes.
IEEE Trans. Inf. Theory, 2016

Improved Singleton-type Bounds for Locally Repairable Codes.
CoRR, 2016

Network Resource Sharing Games with Instantaneous Reciprocity.
CoRR, 2016

Bounds on the maximal minimum distance of linear locally repairable codes.
Proceedings of the IEEE International Symposium on Information Theory, 2016

A connection between locally repairable codes and exact regenerating codes.
Proceedings of the IEEE International Symposium on Information Theory, 2016

2015
Degrees of Freedom and Secrecy in Wireless Relay Networks.
CoRR, 2015

Relay Selection and Resource Allocation for D2D-Relaying under Uplink Cellular Power Control.
Proceedings of the 2015 IEEE Globecom Workshops, San Diego, CA, USA, December 6-10, 2015, 2015

Applications of polymatroid theory to distributed storage systems.
Proceedings of the 53rd Annual Allerton Conference on Communication, 2015

2014
Shifted de Bruijn Graphs.
Proceedings of the Coding Theory and Applications, 4th International Castle Meeting, 2014

2013
Face Numbers of Centrally Symmetric Polytopes Produced from Split Graphs.
Electron. J. Comb., 2013

2010
Partially ordered secretaries
CoRR, 2010

2009
Equivariant discrete Morse theory.
Discret. Math., 2009

Enumeration of Derangements with Descents in Prescribed Positions.
Electron. J. Comb., 2009


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