نتایج جستجو برای: valued lempel

تعداد نتایج: 40819  

Journal: :Discrete Applied Mathematics 2014

1991
Sibylle Mund

The Ziv-Lempel complexity is a well-known complexity measure. In our paper we consider the Ziv-Lempel complexity for p'eriodic sequences as well as for pseudorandom number sequences. Further on, we will look at i ts cryptographic significance and compare it with other complexity measures such as the linear complexity.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1374

we have devided the thesis in to five chapters. the first recollects facts from purely algebraic theory of jordan algebras and also basic properties of jb and jb* - algebras which are needed in the sequel. in the second chapter we extend to jb* - algebras, a classical result due to cleveland [8]. this result shows shows the weakness of jb* - norm topology on a jb* - algebera. in chapter three, ...

Journal: :International Journal of Reconfigurable & Embedded Systems (IJRES) 2021

When transmitting the data in digital communication, it is well desired that bits should be as minimal possible, so many techniques are used to compress data. In this paper, a Lempel-Ziv algorithm for compression was implemented through VHDL coding. One of most lossless algorithms commonly Lempel-Ziv. The work paper devoted improve rate, space-saving, and utilization using systolic array approa...

Journal: :IEEE Trans. Information Theory 2000
Karthik Visweswariah Sanjeev R. Kulkarni Sergio Verdú

In this correspondence we investigate the performance of the Lempel–Ziv incremental parsing scheme on nonstationary sources. We show that it achieves the best rate achievable by a finite-state block coder for the nonstationary source. We also show a similar result for a lossy coding scheme given by Yang and Kieffer which uses a Lempel–Ziv scheme to perform lossy coding.

2017
Johannes Fischer Dominik Köppl

We present the first thorough practical study of the Lempel-Ziv-78 and the Lempel-Ziv-Welch computation based on trie data structures. With a careful selection of trie representations we can beat well-tuned popular trie data structures like Judy, m-Bonsai or Cedar.

1999
Takahiro HOZUMI Osamu KAKUSHO

This paper shows the best operators for sumof-products expressions. We first describe conditions of functions for product and sum operations. We examine all two-variable functions and select those that meet the conditions and then evaluate the number of product terms needed in the minimum sum-of-products expressions when each combination of selected product and sum functions is used. As a resul...

Journal: :iranian journal of fuzzy systems 0
dechao li school of mathematics, physics and information science, zhejiang ocean university, zhoushan, zhejiang, 316022, china and key laboratory of oceanographic big data mining and application of zhejiang province, zhoushan, zhejiang, 316022, china yongjian xie college of mathematics and information science, shaanxi normal university, xi'an, 710062, china

it is firstly proved that the multi-input-single-output (miso) fuzzy systems based on interval-valued $r$- and $s$-implications can approximate any continuous function defined on a compact set to arbitrary accuracy.  a formula to compute the lower upper bounds on the number  of interval-valued fuzzy sets needed to achieve a pre-specified approximation  accuracy for an arbitrary multivariate con...

Journal: :CoRR 2013
C. A. J. Nunes E. Estevez-Rams B. Aragón Fernández R. Lora Serrano

The properties of maximum Lempel-Ziv complexity strings are studied for the binary case. A comparison between MLZs and random strings is carried out. The length profile of both type of sequences show different distribution functions. The non-stationary character of the MLZs are discussed. The issue of sensitiveness to noise is also addressed. An empirical ansatz is found that fits well to the L...

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