中国科学院机构知识库网格系统: 检索

Construction of Three-dimensional Simulation Platform for Linear Inverted Pendulum Base on Model 会议论文 OAI收割
Shenzhen, China, January 21-22, 2018
作者: Zeng P(曾鹏); Zhang HL(张华良); Chen, Xiyou; Zhang T(张涛); Liu, Guanghui

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收藏 | 浏览/下载：42/0 | 提交时间：2018/12/25

Linear inverted pendulum Code automatically generated Open Scene Graph(OSG)

The determination on weight hierarchies of q-ary linear codes of dimension 5 in class IV 期刊论文 OAI收割
JOURNAL OF SYSTEMS SCIENCE & COMPLEXITY, 2016, 卷号: 29, 期号: 1, 页码: 243-258
作者: Wang Lijun; Chen Wende

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收藏 | 浏览/下载：21/0 | 提交时间：2018/07/30

Difference sequence q-ary linear code of dimension 5 weight hierarchy

物体分类中的特征表达与样本不均衡问题研究 学位论文 OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2014
作者: 蔡慧雯

收藏 | 浏览/下载：106/0 | 提交时间：2015/09/02

基于聚类的线性判别分析特征子空间编码空间小样本样本不均衡 Cluster-based Linear Discriminative Analysis Feature Subspace Code Space Small Data Imbalanced Data

A design of high-speed and low-consume parallel grouping RS code and simulation (EI CONFERENCE) 会议论文 OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Chen C.; Jin G.

收藏 | 浏览/下载：27/0 | 提交时间：2013/03/25

RS code is a linear error correction codes with better error correction capability is widely used in different kinds of occasions for communications or data storage. But for its high difficulty of coding and decoding algorithm and low throughput optimization RS algorithm is always studied as one of the focus in the error-correction field. A new coding method parallel coding and decoding data into groups in lower step finite field for avoiding complex matrix iteration and Chien search computation is proposed in this paper. It is proved that the coding and decoding throughput of the parallel grouping RS coder is increased and the hardware complexity is reduced with changeless error-correction capability from the simulation results using ModelSim SE 6.0 and synthetic results using ISE 9.11. 2010 IEEE.

Lossless wavelet compression on medical image (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Photonics and Imaging in Biology and Medicine, September 3, 2005 - September 6, 2005, Tianjin, China
作者: Liu H.; Liu H.; Liu H.

收藏 | 浏览/下载：53/0 | 提交时间：2013/03/25

An increasing number of medical imagery is created directly in digital form. Such as Clinical image Archiving and Communication Systems (PACS). as well as telemedicine networks require the storage and transmission of this huge amount of medical image data. Efficient compression of these data is crucial. Several lossless and lossy techniques for the compression of the data have been proposed. Lossless techniques allow exact reconstruction of the original imagery while lossy techniques aim to achieve high compression ratios by allowing some acceptable degradation in the image. Lossless compression does not degrade the image thus facilitating accurate diagnosis of course at the expense of higher bit rates i.e. lower compression ratios. Various methods both for lossy (irreversible) and lossless (reversible) image compression are proposed in the literature. The recent advances in the lossy compression techniques include different methods such as vector quantization wavelet coding neural networks and fractal coding. Although these methods can achieve high compression ratios (of the order 50:1 or even more) they do not allow reconstructing exactly the original version of the input data. Lossless compression techniques permit the perfect reconstruction of the original image but the achievable compression ratios are only of the order 2:1 up to 4:1. In our paper we use a kind of lifting scheme to generate truly loss-less non-linear integer-to-integer wavelet transforms. At the same time we exploit the coding algorithm producing an embedded code has the property that the bits in the bit stream are generated in order of importance so that all the low rate codes are included at the beginning of the bit stream. Typically the encoding process stops when the target bit rate is met. Similarly the decoder can interrupt the decoding process at any point in the bil stream and still reconstruct the image. Therefore a compression scheme generating an embedded code can start sending over the network the coarser version of the image first and continues with the progressive transmission of the refinement details. Experimental results show that our method can get a perfect performance in compression ratio and reconstructive image.

Weight hierarchies of linear codes satisfying the Near-Chain condition 期刊论文 OAI收割
PROGRESS IN NATURAL SCIENCE, 2005, 卷号: 15, 期号: 9, 页码: 784-792
作者: Liu, ZH; Chen, WD

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收藏 | 浏览/下载：20/0 | 提交时间：2018/07/30

weight hierarchy Near-Chain condition difference sequence linear code

Finite projective geometries and classification of the weight hierarchies of codes (I) 期刊论文 OAI收割
ACTA MATHEMATICA SINICA-ENGLISH SERIES, 2004, 卷号: 20, 期号: 2, 页码: 333-348
作者: Chen, WD; Klove, T

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收藏 | 浏览/下载：15/0 | 提交时间：2018/07/30

weight hierarchy support weight finite projective geometries binary linear code chain condition difference sequence

Linear recurring arrays, linear systems and multidimensional cyclic codes over quasi-Frobenius rings 期刊论文 OAI收割
ACTA APPLICANDAE MATHEMATICAE, 2004, 卷号: 80, 期号: 2, 页码: 175-198
作者: Lu, PH; Liu, ML; Oberst, U

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收藏 | 浏览/下载：20/0 | 提交时间：2018/07/30

Nullstellensatz quasi-Frobenius ring linear recurring array multidimensional linear system annihilating ideal duality cyclic code

Weight hierarchies of linear codes satisfying the almost chain condition 期刊论文 OAI收割
SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES, 2003, 卷号: 46, 期号: 3, 页码: 175-186
作者: Chen, W; Klove, T

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收藏 | 浏览/下载：24/0 | 提交时间：2018/07/30

weight hierarchy linear code almost chain condition

Weight hierarchies of binary linear codes of dimension 4 期刊论文 OAI收割
DISCRETE MATHEMATICS, 2001, 卷号: 238, 期号: 1-3, 页码: 27-34
作者: Chen, W; Klove, T

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收藏 | 浏览/下载：20/0 | 提交时间：2018/07/30

linear code weight hierarchy