33 citations · 176 across the 17 of their papers we have counts for
18 papers
Algebraic Integer Quantization for Machine Learning Applications
Anthony Kostal-Vazquez, Vassil Dimitrov, Branden Butler
In this article, we propose algebraic integer number formats (AINF) as a framework for highly configurable and accurate compressed computation. A key property of AINF is its straig…
Low-Complexity Loeffler DCT Approximations for Image and Video Coding
D. F. G. Coelho, R. J. Cintra, F. M. Bayer +6
This paper introduced a matrix parametrization method based on the Loeffler discrete cosine transform (DCT) algorithm. As a result, a new class of eight-point DCT approximations wa…
Block-Parallel Systolic-Array Architecture for 2-D NTT-based Fragile Watermark Embedding
H. P. L. Arjuna Madanayake, R. J. Cintra, V. S. Dimitrov +1
Number-theoretic transforms (NTTs) have been applied in the fragile watermarking of digital images. A block-parallel systolic-array architecture is proposed for watermarking based…
Powers of 3 with few nonzero bits and a conjecture of Erdős
Vassil S. Dimitrov, Everett W. Howe
Using completely elementary methods, we find all powers of 3 that can be written as the sum of at most twenty-two distinct powers of 2, as well as all powers of 2 that can be writt…
Low-complexity Architecture for AR(1) Inference
A. Borges, R. J. Cintra, D. F. G. Coelho +1
In this Letter, we propose a low-complexity estimator for the correlation coefficient based on the signed process. The introduced approximation is suitable f…
Preventing Denial of Service Attacks in IoT Networks through Verifiable Delay Functions
Vidal Attias, Luigi Vigneri, Vassil Dimitrov
Permissionless distributed ledgers provide a promising approach to deal with the Internet of Things (IoT) paradigm. Since IoT devices mostly generate data transactions and micropay…