Results 51 to 60 of about 31,581 (252)
, 2004 We present a new algorithm for dynamic prefix-free coding, based on Shannon coding. We give a simple analysis and prove a better upper bound on the length of the encoding produced than the corresponding bound for dynamic Huffman coding.
Gagie, Travis
core +5 more sources
Effects of parachute science on local research capacity 降落伞科学对当地研究能力的影响
Conservation Biology, EarlyView.Abstract Strengthening research capacity is essential to address the global biodiversity crisis. Yet, parachute science often undermines this goal, and its prevalence, costs, and benefits are unclear. We analyzed 13,502 publications on primate research that we extracted from Scopus (1960–2022) to evaluate the effects of parachute science on local ...
Li Yang +11 more
wiley +1 more source
Journal of Modern Power Systems and Clean Energy, 2023 In the compression of massive compound power quality disturbance (PQD) signals in active distribution networks, the compression ratio (CR) and reconstruction error (RE) act as a pair of contradictory indicators, and traditional compression algorithms ...
Xiangui Xiao, Kaicheng Li, Chen Zhao
doaj +1 more source
High-capacity separable reversible data-Hiding method in encrypted images based on block-level encryption and Huffman compression coding [PDF]
, 2021 Kaimeng Chen, Chin‐Chen Chang
openalex +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract The Tvären structure in southeastern Sweden has been listed as a confirmed marine‐target impact structure for decades. However, to date, no measurements and/or indexed data of planar deformation features in quartz grains from the structure have been published or any other unequivocal evidence of impact.
Katarzyna J. Gajewska +6 more
wiley +1 more source
Real-time data compression of broadcast video signals [PDF]
, 1990 A non-adaptive predictor, a nonuniform quantizer, and a multi-level Huffman coder are incorporated into a differential pulse code modulation system for coding and decoding broadcast video signals in real ...
Barnes, Scott P. +2 more
core +2 more sources
IET Communications, 2011 In this study, the authors consider the class of anti-uniform Huffman (AUH) codes. The authors derived tight lower and upper bounds on the average codeword length, entropy and redundancy of finite and infinite AUH codes in terms of the alphabet size of the source. These bounds are tighter than similar bounds.
S. Mohajer, A. Kakhbod
openaire +1 more source
Medical Education, EarlyView.Abstract Background This scoping review explores the impact of coaching on the professional identity formation (PIF) of postgraduate medical trainees. Although coaching is well‐documented in undergraduate medical education, its role in postgraduate medical education (PME) remains underexplored.
Roshanee Seth +3 more
wiley +1 more source
Entropy Coding Aided Adaptive Subcarrier-Index Modulated OFDM
IEEE Access, 2018 We propose entropy coding-aided adaptive subcarrier-index-modulated orthogonal frequency division multiplexing (SIM-OFDM). In conventional SIM-OFDM, the indices of the subcarriers activated are capable of conveying extra information. We propose the novel
Mohammad Ismat Kadir +3 more
doaj +1 more source
Equal Time, Unequal Labor Division: Adolescents' Domestic Labor Time During the COVID‐19 Pandemic
Sociological Inquiry, EarlyView.While existing research offers mixed evidence on how the COVID‐19 pandemic affected adults' division of housework, adolescents have remained largely overlooked in this regard. Using nationally representative data from the 2019–2021 American Time Use Survey and Current Population Survey, this study examines changes in adolescents' unpaid labor before ...
Suyeon Park Jang
wiley +1 more source