Results 51 to 60 of about 796,535 (249)
Sparse and shift-invariant representations of music
, 2006 Redundancy reduction has been proposed as the main computational process in the primary sensory pathways in the mammalian brain. This idea has led to the development of sparse coding techniques, which are exploited in this article to extract salient ...
Mike Davies +3 more
core +1 more source
Graph-Based Codes and Iterative Decoding [PDF]
, 2003 The field of error correcting codes was revolutionized by the introduction of turbo codes in 1993. These codes demonstrated dramatic performance improvements over any previously known codes, with significantly lower complexity.
Khandekar, Aamod Dinkar
core +1 more source
Adaptive Error-Correction Coding for Joint Energy and Reliability Optimization in STT-MRAM
IEEE AccessThis paper proposes a concatenated coding framework that combines Bose–Chaudhuri–Hocquenghem (BCH) coding with sparse coding to improve the reliability and energy efficiency of spin-transfer torque magnetic random access memory (STT-MRAM ...
Thanh-Loc Nguyen-Van +2 more
doaj +1 more source
Large-Scale Visualization of Sparse Matrices [PDF]
, 2014 An efficient algorithm for parallel acquisition of visualization data for large sparse matrices is presented and evaluated both analytically and empirically.
Tvrdik, P. +3 more
core +1 more source
Neural Sparse Topical Coding [PDF]
Proceedings of the 56th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), 2018 Topic models with sparsity enhancement have been proven to be effective at learn- ing discriminative and coherent latent top- ics of short texts, which is critical to many scientific and engineering applica- tions. However, the extensions of these models require carefully tailored graphi- cal models and re-deduced inference al- gorithms, limiting their
Min Peng 0002 +6 more
openaire +1 more source
Phonological codes constrain output of orthographic codes via sublexical and lexical routes in Chinese written production. [PDF]
PLoS ONE, 2015 To what extent do phonological codes constrain orthographic output in handwritten production? We investigated how phonological codes constrain the selection of orthographic codes via sublexical and lexical routes in Chinese written production ...
Cheng Wang, Qingfang Zhang
doaj +1 more source
Monte Carlo methods for adaptive sparse approximations of time-series
, 2007 This paper deals with adaptive sparse approximations of time-series. The work is based on a Bayesian specification of the shift-invariant sparse coding model.
Michael E. Davies +3 more
core +1 more source
The throughput analysis of different IR-HARQ schemes based on fountain codes [PDF]
, 2008 In this contribution, we construct two novel IR-HARQ (automatic repeat request) schemes based on fountain codes, which combine the punctured and rateless IR-HARQ schemes, in order to attain the advantageous properties of both: nearly optimal performance ...
Ponnampalam, V +7 more
core +1 more source
Compressed Sensing Based Non-Orthogonal Pilot Designs for Multi-Antenna Grant-Free Access Systems
IEEE Open Journal of the Communications Society, 2020 Grant-free access is an attractive approach to enable spectrum-efficient low-latency access for systems with massive number of users. Pilot design plays a crucial role for grant-free access as it needs to provide a large number of access codes with fast ...
Ayon Quayum, Hlaing Minn
doaj +1 more source
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source