703 citations · 1.6k across the 19 of their papers we have counts for
19 papers
A Factorized Variational Technique for Phase Unwrapping in Markov Random Fields
Kannan Achan, Brendan J. Frey, Ralf Koetter
Some types of medical and topographic imaging device produce images in which the pixel values are "phase-wrapped", i.e. measured modulus a known scalar. Phase unwrapping can be vie…
A Theory of Network Equivalence, Parts I and II
Ralf Koetter, Michelle Effros, Muriel Medard
A family of equivalence tools for bounding network capacities is introduced. Part I treats networks of point-to-point channels. The main result is roughly as follows. Given a netwo…
The Re-Encoding Transformation in Algebraic List-Decoding of Reed-Solomon Codes
Ralf Koetter, Jun Ma, Alexander Vardy
The main computational steps in algebraic soft-decoding, as well as Sudan-type list-decoding, of Reed-Solomon codes are bivariate polynomial interpolation and factorization. We int…
On Counteracting Byzantine Attacks in Network Coded Peer-to-Peer Networks
MinJi Kim, Luísa Lima, Fang Zhao +5
Random linear network coding can be used in peer-to-peer networks to increase the efficiency of content distribution and distributed storage. However, these systems are particularl…
A Rank-Metric Approach to Error Control in Random Network Coding
Danilo Silva, Frank R. Kschischang, Ralf Kötter
The problem of error control in random linear network coding is addressed from a matrix perspective that is closely related to the subspace perspective of Kötter and Kschischang. A…
A Low Complexity Algorithm and Architecture for Systematic Encoding of Hermitian Codes
Rachit Agarwal, Ralf Koetter, Emanuel Popovici
We present an algorithm for systematic encoding of Hermitian codes. For a Hermitian code defined over GF(q^2), the proposed algorithm achieves a run time complexity of O(q^2) and i…