Results 11 to 20 of about 23,946 (190)

The Improvised GZIP, A Technique for Real Time Lossless Data Compression [PDF]

open access: yesEAI Endorsed Transactions on Context-aware Systems and Applications, 2019
Whenever it comes to data processing, the user always faces two major constraints. One is storage capacity and second is bandwidth. These two resources must be efficiently utilized by compressing the data.
Ahmad Shah, Muhammad Sethi
doaj   +1 more source

Sequential Adaptive Compressed Sampling via Huffman Codes [PDF]

open access: yesSampling Theory in Signal and Image Processing, 2011
There are two main approaches in compressed sensing: the geometric approach and the combinatorial approach. In this paper we introduce an information theoretic approach and use results from the theory of Huffman codes to construct a sequence of binary sampling vectors to determine a sparse signal.
Akram Aldroubi   +2 more
openaire   +2 more sources

Exploring Text Data Compression: A Comparative Study of Adaptive Huffman and LZW Approaches [PDF]

open access: yesBIO Web of Conferences
Data compression is a critical procedure in computer science that aims to minimize the size of data files while maintaining their vital information.
Kadhim Doaa J.   +2 more
doaj   +1 more source

Windowed Huffman coding algorithm with size adaptation [PDF]

open access: yesIEE Proceedings I Communications, Speech and Vision, 1993
The windowed Huffman algorithm is introduced. The Huffman code tree is constructed based on the probabilities of symbols' occurrences within finite history in this windowed algorithm. A window buffer is used to store the most recently processed symbols.
Huang, H.C, Wu, Ja-Ling
openaire   +1 more source

Adaptive Spatial Modulation Using Huffman Coding

open access: yes2016 IEEE Global Communications Conference (GLOBECOM), 2016
Antenna switch enables multiple antennas to share a common RF chain, thus an additional spatial dimension, i.e., antenna index, can be utilized in the design of single RF chain MIMO and information can be conveyed via both signal space and spatial dimension.
Zhang, W, Wang, Wei
openaire   +2 more sources

Anomaly Detection in Audio with Concept Drift using Adaptive Huffman Coding

open access: yesCoRR, 2021
When detecting anomalies in audio, it can often be necessary to consider concept drift: the distribution of the data may drift over time because of dynamically changing environments, and anomalies may become normal as time elapses. We propose to use adaptive Huffman coding for anomaly detection in audio with concept drift.
Pratibha Kumari 0001, Mukesh Saini
openaire   +2 more sources

High-Capacity Reversible Data Hiding in Encrypted Images Based on Adaptive Predictor and Compression of Prediction Errors

open access: yesMathematics, 2021
Reversible data hiding in encrypted images (RDHEI) is a technology which embeds secret data into encrypted images in a reversible way. In this paper, we proposed a novel high-capacity RDHEI method which is based on the compression of prediction errors ...
Bin Huang, Chun Wan, Kaimeng Chen
doaj   +1 more source

First-Come-First-Served for Online Slot Allocation and Huffman Coding [PDF]

open access: yes, 2013
Can one choose a good Huffman code on the fly, without knowing the underlying distribution? Online Slot Allocation (OSA) models this and similar problems: There are n slots, each with a known cost. There are n items.
Khare, Monik   +2 more
core   +2 more sources

Improved Adaptive Huffman Compression Algorithm

open access: yesINTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY, 2011
In information age, sending the data from one end to another endneed lot of space as well as time. Data compression is atechnique to compress the information source (e.g. a data file, aspeech signal, an image, or a video signal) in possible fewnumbers of bits.
Satpreet Singh, Harmandeep Singh
openaire   +2 more sources

Arithmetic coding revisited [PDF]

open access: yes, 1998
Over the last decade, arithmetic coding has emerged as an important compression tool. It is now the method of choice for adaptive coding on multisymbol alphabets because of its speed, low storage requirements, and effectiveness of compression.
Moffat, Alistair   +2 more
core   +2 more sources

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