Results 51 to 60 of about 53,193 (208)

A Low-Complexity Lossless Compression Method Based on a Code Table for Infrared Images

Applied Sciences
Traditional JPEG series image compression algorithms have limitations in speed. To improve the storage and transmission of 14-bit/pixel images acquired by infrared line-scan detectors, a novel method is introduced for achieving high-speed and highly ...
Yaohua Zhu, Mingsheng Huang, Yanghang Zhu, Yong Zhang   +3 more
doaj   +1 more source

An Efficient Coding Technique for Stochastic Processes

Entropy, 2021
In the framework of coding theory, under the assumption of a Markov process (Xt) on a finite alphabet A, the compressed representation of the data will be composed of a description of the model used to code the data and the encoded data. Given the model,
Jesús E. García, Verónica A. González-López, Gustavo H. Tasca, Karina Y. Yaginuma   +3 more
doaj   +1 more source

The role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We use the Advanced Weather Research and Forecasting model to examine the role of soil moisture in the inland penetration of Indian monsoon low‐pressure systems (LPSs). We find that LPSs penetrate deeply into India despite a dry land surface; however, their inland penetration is adversely affected when there is a reduction in the total surface heat ...
Akshay Deoras, Kieran M. R. Hunt, Andrew G. Turner   +2 more
wiley   +1 more source

Joint Source-Channel Decoding of Polar Codes for Language-Based Source

, 2016
We exploit the redundancy of the language-based source to help polar decoding. By judging the validity of decoded words in the decoded sequence with the help of a dictionary, the polar list decoder constantly detects erroneous paths after every few bits ...
Bandic, Zvonimir, Jiang, Anxiao, Narayanan, Krishna R., Qin, Minghai, Wang, Ying   +4 more
core   +1 more source

Thermodynamic and microphysical properties of summertime marine fog observed from Sable Island

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Atmospheric profiling and near‐surface fog and visibility measurements revealed synoptic‐scale forcing as the dominant factor in fog formation over Sable Island, with deep fog layers under low‐pressure systems and shallow fog layers under high‐pressure systems.
Kelsey Rowe, Jesus Ruiz‐Plancarte, Ryan Yamaguchi, David Ortiz‐Suslow, Eric Pardyjak, Ismail Gultepe, Harindra J. S. Fernando, Qing Wang   +7 more
wiley   +1 more source

A cryptographic method to have a secure communication of health care digital data into the cloud

Automatika
Cloud computing is a technology that holds great promise and has potential to revolutionize the healthcare sector. Many security and privacy issues are brought up by the cloud’s centralization of data for both patients and healthcare professionals. There
K. Selvakumar, S. Lokesh
doaj   +1 more source

An implementation of Deflate in Coq

, 2016
The widely-used compression format "Deflate" is defined in RFC 1951 and is based on prefix-free codings and backreferences. There are unclear points about the way these codings are specified, and several sources for confusion in the standard. We tried to
AW Appel, B McMillan, D Huffman, G Klein, J Kelsey, JC Blanchette, NA Danielsson, R Affeldt, R Affeldt, V Vafeiadis   +9 more
core   +1 more source

Anti-uniform Huffman codes

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

Heat stress in tropical highland regions: the case of Kenya during February 2024

Weather, EarlyView.
Understanding and awareness about heat stress remain low in sub‐Saharan countries despite high exposure and vulnerability. After the national media in Kenya reported that people had complained about unusual heat stress during February 2024, we combine in situ and reanalysis data to (i) put this event into climatological perspective, and (ii) give ...
G. Chagnaud, J. Gacheru, C. M. Taylor, C. E. Birch   +3 more
wiley   +1 more source

Optimal Prefix Codes for Infinite Alphabets with Nonlinear Costs

, 2007
Let $P = \{p(i)\}$ be a measure of strictly positive probabilities on the set of nonnegative integers. Although the countable number of inputs prevents usage of the Huffman algorithm, there are nontrivial $P$ for which known methods find a source code ...
Baer, Michael B.
core   +2 more sources