Results 11 to 20 of about 28,330 (190)

Applications of Non-Uniquely Decodable Codes to Privacy-Preserving High-Entropy Data Representation

open access: yesAlgorithms, 2019
Non-uniquely-decodable (non-UD) codes can be defined as the codes that cannot be uniquely decoded without additional disambiguation information. These are mainly the class of non–prefix–free codes, where a code-word can be a prefix of other(s)
Muhammed Oğuzhan Külekci   +1 more
doaj   +1 more source

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

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

Approximating Huffman Codes in Parallel

open access: yesJournal of Discrete Algorithms, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Piotr Berman   +2 more
openaire   +3 more sources

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

Canonical Trees, Compact Prefix-free Codes and Sums of Unit Fractions: A Probabilistic Analysis [PDF]

open access: yes, 2015
For fixed $t\ge 2$, we consider the class of representations of $1$ as sum of unit fractions whose denominators are powers of $t$ or equivalently the class of canonical compact $t$-ary Huffman codes or equivalently rooted $t$-ary plane "canonical" trees.
Heuberger, Clemens   +2 more
core   +2 more sources

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

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