检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

1,860 篇 会议
213 篇 期刊文献
3 篇 学位论文

馆藏范围

2,076 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

544 篇 工学
- 274 篇 计算机科学与技术...
- 261 篇 电气工程
- 130 篇 信息与通信工程
- 84 篇 软件工程
- 40 篇 电子科学与技术（可...
- 33 篇 控制科学与工程
- 29 篇 仪器科学与技术
- 23 篇 生物医学工程（可授...
- 16 篇 机械工程
- 12 篇 测绘科学与技术
- 8 篇 网络空间安全
- 7 篇 生物工程
- 6 篇 航空宇航科学与技...
- 5 篇 交通运输工程
- 4 篇 光学工程
- 3 篇 土木工程
66 篇 理学
- 21 篇 数学
- 19 篇 系统科学
- 11 篇 物理学
- 9 篇 地球物理学
- 7 篇 生物学
- 2 篇 天文学
- 2 篇 地理学
- 2 篇 海洋科学
61 篇 医学
- 51 篇 临床医学
- 9 篇 基础医学(可授医学...
- 5 篇 特种医学
36 篇 管理学
- 35 篇 管理科学与工程(可...
12 篇 文学
- 12 篇 新闻传播学
5 篇 农学
- 4 篇 作物学
3 篇 艺术学
2 篇 军事学
1 篇 经济学

主题

2,076 篇 compression algo...
647 篇 image coding
492 篇 data compression
283 篇 encoding
219 篇 transform coding
218 篇 decoding
203 篇 algorithm design...
164 篇 dictionaries
155 篇 bandwidth
148 篇 video compressio...
142 篇 computer science
141 篇 hardware
130 篇 testing
119 篇 entropy
112 篇 wavelet transfor...
108 篇 bit rate
100 篇 costs
99 篇 quantization
99 篇 discrete cosine ...
96 篇 pixel

机构

9 篇 hewlett packard ...
6 篇 school of electr...
5 篇 department of co...
5 篇 technion israel ...
5 篇 department of el...
5 篇 david samoff res...
5 篇 microsoft resear...
5 篇 institute of com...
4 篇 information syst...
4 篇 faculty of scien...
4 篇 university of ca...
4 篇 school of inform...
4 篇 univ las palmas ...
4 篇 institute of sig...
4 篇 department of el...
4 篇 xerox corporatio...
4 篇 department of el...
4 篇 department of co...
4 篇 department of co...
4 篇 department of el...

作者

9 篇 a. mukherjee
8 篇 en-hui yang
7 篇 w. wolf
6 篇 m. vetterli
6 篇 radu rădescu
6 篇 h. lekatsas
5 篇 chulhee lee
5 篇 k. sayood
5 篇 p.l. dragotti
5 篇 xiaolin wu
5 篇 martin burtscher
5 篇 barrios yubal
5 篇 a. ortega
5 篇 n. chaddha
5 篇 sarmiento robert...
5 篇 yuan xie
5 篇 d. kirovski
4 篇 beatrice arvinti
4 篇 jan platos
4 篇 s. dandapat

语言

2,048 篇 英文
14 篇 中文
13 篇 其他

检索条件"主题词=Compression algorithms"

共 2076 条记录，以下是721-730 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

ECG compression using multilevel thresholding of wavelet coefficients

ECG compression using multilevel thresholding of wavelet coe...

引用

Intelligent Sensors, Sensor Networks and Information Processing Conference (ISSNIP)

作者： M. Sharafat Hossain Tareq Aziz M. A. Haque Department of EEE Dhaka University of Engineering and Technology Bangladesh Department of EEE American International University-Bangladesh Bangladesh Department of EEE Bangladesh University of Engineering and Technology Bangladesh

A wavelet-based electrocardiogram (ECG) compression algorithm is proposed in this paper. The proposed algorithm reduces the bit rate of ECG and preserves its main clinically diagnostic features intact by minimizing reconstructed signal distortion. The original signal is divided into blocks and each block goes through a discrete wavelet transform. A threshold based on energy packing efficiency of the wavelet coefficients is used to threshold the wavelet coefficients. To assess the proper applicability of the proposed technique we have evaluated the effect of threshold level selection on the quality of the reconstructed signal. To generalize the proposed method, the technique is tested for the compression of a large set of normal and abnormal ECG signals extracted from MIT-BIH database. The performance parameters of the compression algorithm are measured and an average compression ratio of 13.57 with percent root mean square difference (PRD) of 4.87 is achieved. This technique outperforms the recently published ones in most of the data sets of MIT-BIH database.

关键词： Electrocardiography Wavelet coefficients compression algorithms Discrete wavelet transforms Databases Bit rate Distortion Testing Data mining Root mean square

来源：评论

学校读者我要写书评

暂无评论

Instruction Trace compression for Rapid Instruction Cache Simulation

Instruction Trace Compression for Rapid Instruction Cache Si...

引用

Design, Automation and Test in Europe Conference and Exhibition

作者： Andhi Janapsatya Aleksandar Ignjatovic Sri Parameswaran Joerg Henkel Computer Science and Engineering The University of New South Wales Sydney NSW Australia School of CSE and NICTA University of New South Wales Sydney NSW Australia Dept. of Computer Science Karlsruhe University Karlsruhe Germany

ISBN: (纸本)9783981080124

Modern application specific instruction set processors (ASIPs) have customizable caches, where the size, associativity and line size can all be customized to suit a particular application. To find the best cache size suited for a particular embedded system, the applications) is/are executed, traces obtained, and caches simulated. Typically, program trace files can range from a few megabytes to several gigabytes. Simulation of cache performance using large program trace files is a time consuming process. In this paper, a novel instruction cache simulation methodology that can operate directly on a compressed program trace file without the need for decompression is presented. This feature allowed our simulation methodology to have an average speed up of 9.67 times compared to the existing state of the art tool (Dinero IV cache simulator), for a range of applications from the Mediabench suite

关键词： Process design Application specific processors Embedded system Performance analysis compression algorithms Computer science Australia Application software Energy consumption Cache memory

来源：评论

学校读者我要写书评

暂无评论

Analysis by synthesis ECG signal compression

Analysis by synthesis ECG signal compression

引用

Computers in Cardiology (CinC)

作者： Y. Zigel A. Cohen A. Abu-Ful A. Wagshal A. Katz Department of Electrical & Computer Engineering Ben-Gurion University of the Negev Beersheba Israel Cardiology Division Soroka Medical Center Faculty of Health Sciences Ben-Gurion University of the Negev Beersheba Israel

The authors introduce a new ECG compression algorithm, and a new distortion measure. The distortion measure, called the Weighted Diagnostic Distortion (WDD), is based on comparing PQRST complex features (such as: RR interval, QT interval, ST elevation, etc.) of the original ECG signal and the reconstructed one. The compression algorithm is based on analysis by synthesis coding. It consists of a beat codebook, long and short term predictors, and an adaptive residual quantizer. The compression algorithm uses the WDD measure in order to encode, by means of analysis by synthesis, every beat of the original ECG signal. The compression algorithm has been applied to the MIT-BIH Arrhythmia Database. A rate of approximately 100 bits per second has been achieved with a very good quality (WDD below 4%, and PRD below 8%).

关键词： Signal analysis Signal synthesis Electrocardiography Distortion measurement compression algorithms Algorithm design and analysis Weight measurement Cardiology Biomedical engineering Medical diagnostic imaging

来源：评论

学校读者我要写书评

暂无评论

An Efficient Data compression Algorithm for Semantic-Based Ubiquitous Computing Applications

An Efficient Data Compression Algorithm for Semantic-Based U...

引用

International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies (UBICOMM)

作者： Michele Ruta Tommaso Di Noia Eugenio Di Sciascio Floriano Scioscia Politecnico di Bari Bari Italy

We present an efficient compression algorithm specifically devised and implemented to reduce size of document instances expressed in various ontological languages, and specifically targeted at DIG 1.1 syntax. Motivation derives from a widespread exploitation of Knowledge Representation formalisms in innovative ubiquitous computing contexts. In carried out tests, the compressor we present showed better compression rates than currently available general-purpose XML compression tools.

关键词： Data compression Ubiquitous computing Wireless sensor networks XML Radiofrequency identification Mobile computing Mobile communication Bandwidth compression algorithms Context

来源：评论

学校读者我要写书评

暂无评论

A survey of on-board image compression for CNES space missions

A survey of on-board image compression for CNES space missio...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： C. Lambert-Nebout G. Moury CNES Toulouse France

Images acquired on board spacecraft represent in most cases very large volumes of data. It is then necessary to store these data and to transmit them to ground. It is essential to reduce to a minimum the on-board storage capacity and the on-board transmission rate. On board image compression is advantageous for two main reasons: 1) the steady performance improvements of compression algorithms, and 2) the availability in recent years, for spaceborne applications, of highly integrated custom circuits (ASIC technology) which makes it possible to implement, in high pixel rate systems, sophisticated real-time compression schemes. The authors focus on lossy compression algorithms used for CNES space missions. Such a typical image coder has three basic components: a transformation, a quantizer and data coding. In lossy compression the reconstructed image contains degradations relative to the original. As a result, much higher compression can be achieved as compared to lossless compression. More compression is obtained at the expense of more distortion. In order to be acceptable, these degradations (image quality) must be compatible with all the potential uses of the images. It is then very important to consider the whole image chain (from the sensor to the on-ground post-processing) to optimize image compression and for each space mission it is necessary to solve the trade-off between image quality versus compression ratio.

关键词： Image coding Space missions compression algorithms Degradation Image quality Space vehicles Availability Application specific integrated circuits Integrated circuit technology Space technology

来源：评论

学校读者我要写书评

暂无评论

A High compression Algorithm for Video Stream

A High Compression Algorithm for Video Stream

引用

Congress on Image and Signal Processing, CISP

作者： Wei-feng Liu Ji-li Lu Zeng-fu Wang Hua-jun Song Xue-zheng Han College of Information and Control Engineering China University of Petroleum Dongying China Zaozhuang University Zaozhuang China Department of Automation University of Science and Technology Hefei Anhui China

To reduce the temporal redundancy in video frame sequence for the similarity between the current and the prior image, a new video coding algorithm based on zero-tree wavelet with extremely high compression is presented in this paper. A new scheme is presented which employs adaptive strategy based on different motion detected in frame sequence. With the algorithm we have realized the real-time compression of video streams with high fidelity.

关键词： compression algorithms Video compression Streaming media Image coding Motion detection Signal processing algorithms Decoding Video sequences Wavelet transforms Arithmetic

来源：评论

学校读者我要写书评

暂无评论

Enhancing data migration performance via parallel data compression

Enhancing data migration performance via parallel data compr...

引用

International Symposium on Parallel and Distributed Processing (IPDPS)

作者： Jonghyun Lee M. Winslett Xiaosong Ma Shengke Yu Department of Computer Science University of Illinois Urbana-Champaign IL USA

Scientific simulations often produce large volumes of output that are moved to another platform for visualization or storage. This long-distance migration is slow due to the data size and slow network. compression can improve migration performance by reducing the data size, but compression is computation-intensive and so can raise costs. In this work, we show how to reduce data migration cost by incorporating compression into migration. We analyze eight scientific data sets, and propose three approaches for parallel compression of scientific data. Our results show that with reasonably fast processors and typical parallel configurations, the compression cost for large scientific data is outweighed by the performance gain obtained by migrating less data. We found that a client-side compression approach (CC) can improve I/O and migration performance by an order of magnitude. In our experiments, CC always matches or outperforms migration without compression when we overlap migration with computation, even for not very compressible dense floating point data. We also present a variant of CC that is well suited for use with implementations of two-phase I/O.

关键词： Data compression Computational modeling Data visualization Costs Analytical models Workstations Bandwidth Supercomputers compression algorithms Internet

来源：评论

学校读者我要写书评

暂无评论

Investigating Randomness of the LZSS compression Algorithm

Investigating Randomness of the LZSS Compression Algorithm

引用

International Conference on Computer Science and Service System (CSSS)

作者： Weiling Chang Xiaochun Yun Nanning Li Xiuguo Bao National Computer Network and Information Security Management Center Beijing China

ISBN: (纸本)9781467307215

Random Number Generators play a critical role in a number of important applications. In practice, statistical testing is employed to gather evidence that a generator indeed produces numbers that appear to be random. In this paper, we address the issue on the random property of compressed data via LZSS compression algorithm. Our test results suggest that the output of LZSS has bad randomness. We also investigate the randomization methods using the LZSS. A pseudo-random sequence generator (PRNG), L12RC4, inspired by the LZSS compression algorithm and RC4 stream cipher, was presented and implemented. The result of the NIST and Diehard test suite indicate that the L12RC4 is a good PRNG, and so it seems to be sound and may be suitable for use in some cryptographic applications. We also found that the probability distribution of the index value frequency is associated with the compression pass and INDEX_BIT_COUNT value. As for one pass mode, the greater INDEX_BIT_COUNT value, the more uniformly distributed, and the double pass mode has better uniformity than the one pass mode.

关键词： Generators NIST Indexes Probability distribution Cryptography compression algorithms Data compression

来源：评论

学校读者我要写书评

暂无评论

Data compression techniques for maps

Data compression techniques for maps

引用

IEEE Southeastcon

作者： M.Y. Jaisimha H. Potlapalli H. Barad A.B. Martinez M.C. Lohrenz J. Ryan J. Pollard Electrical Engineering Tulane University New Orleans LA USA Naval Ocean Research & Development Activity J. C. Stennis Space Center MS USA Planning Systems Inc.orporated Slidell LA USA

The efficiencies of various data-compression techniques as applied to color maps are compared. These color maps have certain special characteristics, such as large homogeneous regions, and fine detail, such as lines and lettering. The color maps are first classified using the K-means clustering algorithm with neighborhood classification. Three techniques are investigated, namely, contour, quadtree, and run-length coding. The run-length coding algorithm is modified to allow wrap-around of runs. A modification of the standard binary image quadtree compression algorithm for color images is introduced. In quadtree coding a modified eldest-son eldest-younger-sibling quadtree is used to reduce the memory requirement for storing the quadtree. Lempel-Ziv compression is applied to the classified and unclassified images as well as to the output of the compression algorithms. The algorithms are compared on the compression ratios achieved. The exponential behavior of the histogram of the runs indicates that runs of short run length have higher probability. Accordingly, Huffman coding of the runs would result in more efficient bit assignment and hence greater compression ratios.< >

关键词： Data compression Image coding compression algorithms Pixel Oceans Vector quantization Color Image converters Image processing Binary trees

来源：评论

学校读者我要写书评

暂无评论

Identifying Image compression Methods Using Vision Transformers

Identifying Image Compression Methods Using Vision Transform...

引用

Telecommunications Forum (TELFOR)

作者： Emir Öztürk Computer Engineering Department Trakya University Edirne Turkiye

ISBN: (数字)9798350391060

ISBN: (纸本)9798350391077

Image compression uses various lossy methods, each creating different distortions. Understanding these distortions is key for optimizing image enhancement and steganography, as they affect quality and detectability. Detection of compression algorithms is essential especially when file extensions are altered. This study presents a method for identifying compression algorithms - JPEG, AVIF, HEIC, and WebP, using a fine-tuned vision transformer model. The model achieved 98% validation and 99% test accuracy and shows premising results.

关键词： Q-factor Steganography Computer vision Image coding Image resolution Transform coding Distortion Transformers Image enhancement compression algorithms

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共208页 << < 69 70 71 72 73 74 75 76 77 78 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：