Improvements on Making BKW Practical for Solving LWE
Cryptography, 2021 The learning with errors (LWE) problem is one of the main mathematical foundations of post-quantum cryptography. One of the main groups of algorithms for solving LWE is the Blum–Kalai–Wasserman (BKW) algorithm. This paper presents new improvements of BKW-
Alessandro Budroni +4 more
doaj +1 more source
Computationally Efficient Robust Color Image Watermarking Using Fast Walsh Hadamard Transform
Journal of Imaging, 2017 Watermark is the copy deterrence mechanism used in the multimedia signal that is to be protected from hacking and piracy such a way that it can later be extracted from the watermarked signal by the decoder.
Suja Kalarikkal Pullayikodi +3 more
doaj +1 more source
A new FWHT‐CMF‐DFE based approach for channel equalization in CP‐free OFDM systems
IET Communications, 2021 Orthogonal frequency division multiplexing (OFDM) has been widely used in wireless communication systems due to its robustness against the frequency selectivity of fading channels. It provides optimal performance and it also meets the requirements of the
Gazihan Aykırı +3 more
doaj +1 more source
Design and Implementation of a Speller based on EMG Signal
International Journal of Computational Intelligence Systems, 2017 A speller is a communication device designed for those suffering from neuromuscular disorders having difficulty to speak. An EMG based design is proposed which uses eye blinks for character selection that offers high accuracy and more comfort to the user.
P M Shyam Prasad +3 more
doaj +1 more source
A Blind Video Copyright Protection Technique in Maximum and Minimum Energy Frames Based on The Fast Walsh Hadamard Transform (FWHT) and Discrete Wavelet Transform (DWT) and Arnold Map [PDF]
, 2022 Video copyright protection is the most generally acknowledged method of preventing data piracy. This paper proposes a blind video copyright protection technique based on the Fast Walsh Hadamard Transform (FWHT), Discrete Wavelet Transform (DWT), and ...
Laftah, Muna M., Resen, Mohammed S.
core
Optical full Hadamard matrix multiplexing and noise effects [PDF]
, 2009 Hadamard multiplexing provides a considerable SNR boost over additive random noise but Poisson noise such as photon noise reduces the boost. We develop the theory for full H-matrix Hadamard transform imaging under additive and Poisson noise effects.
Streeter, Lee +4 more
core +1 more source
Matrix Factorization and Some Fast Discrete Transforms
AxiomsIn this paper, three discrete transforms related to vector spaces over finite fields are studied. For our purposes, and according to the properties of the finite fields, the most suitable transforms are as follows: for binary fields, this is the Walsh ...
Iliya Bouyukliev +2 more
doaj +1 more source
Fault Detection for Suspension System of Maglev Trains Based on Historical Health Data
IEEE Access, 2020 To overcome the influence of multiple operating conditions for fault detection, this paper proposes a method to detect fault for the suspension system of maglev trains.
Xu Zhou, Ping Wang, Zhiqiang Long
doaj +1 more source
Semi-automated bed boundary detection and log alignment using fast Walsh–Hadamard transform
Frontiers in Earth ScienceDepth mismatches between well logs acquired in different runs (e.g., electrical wireline logging (EWL) versus logging while drilling (LWD)) impede stratigraphic correlation and bias reservoir property estimation.
Sushil Acharya +3 more
doaj +1 more source
Advanced Quantum Technologies, Volume 9, Issue 6, June 2026.Prime number identification is implemented on IBM Quantum processors through entanglement dynamics. The PIED protocol encodes arithmetic information in the reduced purity of a bipartite quantum system, whose Fourier spectrum reveals prime/composite signatures.
Victor F. dos Santos +3 more
wiley +1 more source