Results 21 to 30 of about 1,801 (211)

Huffman coding

open access: yesInternational journal of health sciences, 2022
In the proposed Huffman LEACH model, energy consumption increases exponentially with distance and there are no maximum limits. The transmit power level of a sensor node can only be adjusted to discrete values that may result in one transmit power level for various distances.
Sunil S. Harakannanavar   +5 more
openaire   +1 more source

Low-Power Lossless Data Compression for Wireless Brain Electrophysiology

open access: yesSensors, 2022
Wireless electrophysiology opens important possibilities for neuroscience, especially for recording brain activity in more natural contexts, where exploration and interaction are not restricted by the usual tethered devices.
Aarón Cuevas-López   +4 more
doaj   +1 more source

Block huffman coding

open access: yesComputers & Mathematics with Applications, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Abdul Mannan, M., Kaykobad, M.
openaire   +2 more sources

بهینه‌سازی کدهای دودویی

open access: yesعلوم رایانش و فناوری اطلاعات, 2021
All binary codes, even Huffman optimal code, are kind of non-optimal bit arrangement. Therefore, binary code optimization is a challenging problem. In this paper an algorithm is proposed to optimize the codes by converting any type of binary code to a ...
پرویز قره باقری   +2 more
doaj  

DDQR (dynamic DNA QR coding): An efficient algorithm to represent DNA barcode sequences.

open access: yesPLoS ONE, 2023
A DNA barcode is a short piece of standard DNA sequence used for species determination and discrimination. Representation of DNA barcodes is essential for DNA barcodes' applications in the transportation and recognition of biological materials ...
Yujun Wang   +3 more
doaj   +1 more source

2-D Bi-Level Block Coding for Color Image Compression and Transmission With Bit-Error Awareness

open access: yesIEEE Access, 2020
In this paper, we develop a new color image lossless compression algorithm with bit-error awareness based on a general bi-level block coding method. The proposed method contains three stages.
Xuan Peng   +3 more
doaj   +1 more source

Compressed Matching in Dictionaries

open access: yesAlgorithms, 2011
The problem of compressed pattern matching, which has recently been treated in many papers dealing with free text, is extended to structured files, specifically to dictionaries, which appear in any full-text retrieval system.
Shmuel T. Klein, Dana Shapira
doaj   +1 more source

Construction of Multi-State Capacity-Approaching Variable-Length Constrained Sequence Codes With State-Independent Decoding

open access: yesIEEE Access, 2019
We consider the construction of capacity-approaching variable-length constrained sequence codes based on the multi-state encoders that permit state-independent decoding. Based on the finite-state machine description of the constraint, we first select the
Congzhe Cao, Ivan Fair
doaj   +1 more source

A quantum analog of Huffman coding [PDF]

open access: yesIEEE Transactions on Information Theory, 2000
Revised version, 7 pages, two-column, RevTex.
Samuel L. Braunstein   +3 more
openaire   +4 more sources

Robust image and video coding with pyramid vector quantisation [PDF]

open access: yes, 1999
Most current image and video coding standards use variable length codes to achieve compression, which renders the compressed bitstream very sensitive to channel errors.
Bull, D R, Chung How, JTH, Bull, DR
core   +1 more source

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